feat: add flat singles folder option (Artist/song.flac without Singles subfolder)

Load saved registry URL before first state update to prevent brief
flash of the setup screen when the store tab initializes.

Add Ogg/Opus fallback in readFileMetadata when FLAC parsing fails,
handling files saved with .flac extension that contain opus data.

README.md

@@ -141,6 +141,11 @@ In AltStore/SideStore, go to **Browse > Sources**, tap **+**, and paste the link
 
 </details>
 
+> [!NOTE]
+> If SpotiFLAC is useful to you, consider supporting development:
+>
+> [![Ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/zarzet)
+
 ---
 
 ## Contributors
@@ -165,10 +170,5 @@ Interested in contributing? Check out the [Contributing Guide](CONTRIBUTING.md)
 | [dabmusic.xyz](https://dabmusic.xyz) | [AfkarXYZ](https://github.com/afkarxyz) | [LRCLib](https://lrclib.net) | [Paxsenix](https://lyrics.paxsenix.org) | [Cobalt](https://cobalt.tools) |
 | [qwkuns.me](https://qwkuns.me) | [SpotubeDL](https://spotubedl.com) | [Song.link](https://song.link) | [IDHS](https://github.com/sjdonado/idonthavespotify) | |
 
-> [!NOTE]
-> If SpotiFLAC is useful to you, consider supporting development:
->
-> [![Ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/zarzet)
-
 > [!TIP]
 > **Star the repo** to get notified about all new releases directly from GitHub.

android/app/src/main/kotlin/com/zarz/spotiflac/DownloadService.kt

@@ -137,14 +137,13 @@ class DownloadService : Service() {
     
     private fun startForegroundService() {
         isRunning = true
-        
-        // Acquire wake lock to prevent CPU sleep
+
         val powerManager = getSystemService(Context.POWER_SERVICE) as PowerManager
         wakeLock = powerManager.newWakeLock(
             PowerManager.PARTIAL_WAKE_LOCK,
             WAKELOCK_TAG
         ).apply {
-            acquire(60 * 60 * 1000L) // 1 hour max
+            acquire(60 * 60 * 1000L)
         }
         
         val notification = buildNotification(0, 0)

android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt

@@ -27,6 +27,7 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.json.JSONArray
 import org.json.JSONObject
+import org.json.JSONTokener
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
@@ -129,39 +130,35 @@ class MainActivity: FlutterFragmentActivity() {
     )
 
     companion object {
-        // Minimum API level we consider "safe" for Impeller (Android 10+)
         private const val SAFE_API_FOR_IMPELLER = 29
-        
-        // Known problematic GPU patterns (lowercase)
+
         private val PROBLEMATIC_GPU_PATTERNS = listOf(
-            "adreno (tm) 3",   // Adreno 300 series (305, 320, 330, etc.) - old Qualcomm
-            "adreno (tm) 4",   // Adreno 400 series - some have issues
-            "mali-4",          // Mali-400 series - old ARM GPUs
-            "mali-t6",         // Mali-T600 series
-            "mali-t7",         // Mali-T700 series (some)
-            "powervr sgx",     // PowerVR SGX series - old Imagination GPUs
-            "powervr ge8320",  // PowerVR GE8320 - known issues
-            "gc1000",          // Vivante GC1000
-            "gc2000",          // Vivante GC2000
+            "adreno (tm) 3",
+            "adreno (tm) 4",
+            "mali-4",
+            "mali-t6",
+            "mali-t7",
+            "powervr sgx",
+            "powervr ge8320",
+            "gc1000",
+            "gc2000",
         )
-        
-        // Known problematic chipsets/hardware (lowercase)
+
         private val PROBLEMATIC_CHIPSETS = listOf(
-            "mt6762",   // MediaTek Helio P22 with PowerVR GE8320
-            "mt6765",   // MediaTek Helio P35 with PowerVR GE8320
-            "mt8768",   // MediaTek tablet chip
-            "mp0873",   // MediaTek variant
-            "msm8974",  // Snapdragon 800/801 with Adreno 330
-            "msm8226",  // Snapdragon 400 with Adreno 305
-            "msm8926",  // Snapdragon 400 with Adreno 305
-            "apq8084",  // Snapdragon 805 (some issues)
+            "mt6762",
+            "mt6765",
+            "mt8768",
+            "mp0873",
+            "msm8974",
+            "msm8226",
+            "msm8926",
+            "apq8084",
         )
-        
-        // Known problematic device models (lowercase)
+
         private val PROBLEMATIC_MODELS = listOf(
-            "sm-t220",      // Samsung Tab A7 Lite
-            "sm-t225",      // Samsung Tab A7 Lite LTE
-            "hammerhead",   // Nexus 5 (Adreno 330)
+            "sm-t220",
+            "sm-t225",
+            "hammerhead",
         )
         /**
          * Check if device should use Skia instead of Impeller.
@@ -173,7 +170,6 @@ class MainActivity: FlutterFragmentActivity() {
             val model = Build.MODEL.lowercase(Locale.ROOT)
             val device = Build.DEVICE.lowercase(Locale.ROOT)
 
-            // 1. Check for explicitly problematic device models
             for (problematicModel in PROBLEMATIC_MODELS) {
                 if (model.contains(problematicModel) || device.contains(problematicModel)) {
                     android.util.Log.i("SpotiFLAC", "Matched problematic model: $problematicModel")
@@ -181,7 +177,6 @@ class MainActivity: FlutterFragmentActivity() {
                 }
             }
 
-            // 2. Check for problematic chipsets
             for (chipset in PROBLEMATIC_CHIPSETS) {
                 if (hardware.contains(chipset) || board.contains(chipset)) {
                     android.util.Log.i("SpotiFLAC", "Matched problematic chipset: $chipset")
@@ -189,12 +184,9 @@ class MainActivity: FlutterFragmentActivity() {
                 }
             }
 
-            // 3. For Android < 10 (API 29), be more aggressive about disabling Impeller
             if (Build.VERSION.SDK_INT < SAFE_API_FOR_IMPELLER) {
-                // For older Android, check GPU renderer if available
                 val gpuRenderer = getGpuRenderer().lowercase(Locale.ROOT)
 
-                // Check for known problematic GPUs
                 for (pattern in PROBLEMATIC_GPU_PATTERNS) {
                     if (gpuRenderer.contains(pattern)) {
                         android.util.Log.i("SpotiFLAC", "Matched problematic GPU on old Android: $pattern")
@@ -202,14 +194,12 @@ class MainActivity: FlutterFragmentActivity() {
                     }
                 }
 
-                // For very old Android (< 8.0), always use Skia as Vulkan support is spotty
                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
                     android.util.Log.i("SpotiFLAC", "Android < 8.0, using Skia for safety")
                     return true
                 }
             }
 
-            // 4. For Android 10+, still check for known problematic GPUs
             val gpuRenderer = getGpuRenderer().lowercase(Locale.ROOT)
             for (pattern in PROBLEMATIC_GPU_PATTERNS) {
                 if (gpuRenderer.contains(pattern)) {
@@ -227,8 +217,6 @@ class MainActivity: FlutterFragmentActivity() {
      */
         private fun getGpuRenderer(): String {
             return try {
-                // This might not work before GL context is created,
-                // but worth trying for additional detection
                 android.opengl.GLES20.glGetString(android.opengl.GLES20.GL_RENDERER) ?: ""
             } catch (e: Exception) {
                 ""
@@ -413,6 +401,38 @@ class MainActivity: FlutterFragmentActivity() {
         }
     }
 
+    private fun parseJsonValue(value: Any?): Any? {
+        return when (value) {
+            null, JSONObject.NULL -> null
+            is JSONObject -> {
+                val map = LinkedHashMap<String, Any?>()
+                val keys = value.keys()
+                while (keys.hasNext()) {
+                    val key = keys.next()
+                    map[key] = parseJsonValue(value.opt(key))
+                }
+                map
+            }
+            is JSONArray -> {
+                val list = ArrayList<Any?>()
+                for (i in 0 until value.length()) {
+                    list.add(parseJsonValue(value.opt(i)))
+                }
+                list
+            }
+            is Number, is Boolean, is String -> value
+            else -> value.toString()
+        }
+    }
+
+    private fun parseJsonPayload(payload: String): Any {
+        return try {
+            parseJsonValue(JSONTokener(payload).nextValue()) ?: payload
+        } catch (_: Exception) {
+            payload
+        }
+    }
+
     private fun startDownloadProgressStream(sink: EventChannel.EventSink) {
         stopDownloadProgressStream()
         downloadProgressEventSink = sink
@@ -425,7 +445,7 @@ class MainActivity: FlutterFragmentActivity() {
                     }
                     if (payload != lastDownloadProgressPayload) {
                         lastDownloadProgressPayload = payload
-                        sink.success(payload)
+                        sink.success(parseJsonPayload(payload))
                     }
                 } catch (e: Exception) {
                     android.util.Log.w(
@@ -457,7 +477,7 @@ class MainActivity: FlutterFragmentActivity() {
                     }
                     if (payload != lastLibraryScanProgressPayload) {
                         lastLibraryScanProgressPayload = payload
-                        sink.success(payload)
+                        sink.success(parseJsonPayload(payload))
                     }
                 } catch (e: Exception) {
                     android.util.Log.w(
@@ -599,7 +619,6 @@ class MainActivity: FlutterFragmentActivity() {
      * Resolve extension from a MediaStore URI by querying DISPLAY_NAME or MIME_TYPE.
      */
     private fun resolveMediaStoreExt(uri: Uri, fallbackExt: String?): String {
-        // Try DISPLAY_NAME first
         try {
             contentResolver.query(uri, arrayOf(android.provider.MediaStore.MediaColumns.DISPLAY_NAME), null, null, null)?.use { cursor ->
                 if (cursor.moveToFirst()) {
@@ -610,7 +629,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         } catch (_: Exception) {}
 
-        // Try MIME_TYPE
         try {
             val mime = contentResolver.getType(uri)
             val ext = extFromMimeType(mime)
@@ -836,8 +854,6 @@ class MainActivity: FlutterFragmentActivity() {
         val mimeType = mimeTypeForExt(outputExt)
         val fileName = buildSafFileName(req, outputExt)
 
-        // Check for existing file WITHOUT creating the directory first.
-        // This prevents empty folders from being created for duplicate downloads.
         val existingDir = findDocumentDir(treeUri, relativeDir)
         if (existingDir != null) {
             val existing = existingDir.findFile(fileName)
@@ -852,7 +868,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // Only create the directory now that we know we need to download
         val targetDir = ensureDocumentDir(treeUri, relativeDir)
             ?: return errorJson("Failed to access SAF directory")
 
@@ -875,7 +890,6 @@ class MainActivity: FlutterFragmentActivity() {
             val respObj = JSONObject(response)
             if (respObj.optBoolean("success", false)) {
                 // Extension providers write to a local temp path instead of the SAF FD.
-                // Copy the local file into the SAF document so it is not empty.
                 val goFilePath = respObj.optString("file_path", "")
                 if (goFilePath.isNotEmpty() &&
                     !goFilePath.startsWith("content://") &&
@@ -924,15 +938,10 @@ class MainActivity: FlutterFragmentActivity() {
         try {
             val docId = android.provider.DocumentsContract.getDocumentId(childUri)
             if (docId.isNullOrEmpty()) return null
-
-            // Document IDs typically look like "primary:Music/Album/file.cue"
-            // Parent would be "primary:Music/Album"
             val lastSlash = docId.lastIndexOf('/')
             if (lastSlash <= 0) return null
 
             val parentDocId = docId.substring(0, lastSlash)
-
-            // Build a tree document URI for the parent so it supports listing/findFile
             val treeDocId = android.provider.DocumentsContract.getTreeDocumentId(childUri)
             if (treeDocId.isNullOrEmpty()) return null
 
@@ -957,21 +966,17 @@ class MainActivity: FlutterFragmentActivity() {
             val lines = File(cueTempPath).readLines()
             for (line in lines) {
                 val trimmed = line.trim().let { l ->
-                    // Strip BOM
                     if (l.startsWith("\uFEFF")) l.removePrefix("\uFEFF").trim() else l
                 }
                 if (trimmed.uppercase(Locale.ROOT).startsWith("FILE ")) {
                     val rest = trimmed.substring(5).trim()
-                    // Parse: "filename" TYPE  or  filename TYPE
                     val filename = if (rest.startsWith("\"")) {
                         val endQuote = rest.indexOf('"', 1)
                         if (endQuote > 0) rest.substring(1, endQuote) else rest
                     } else {
-                        // Last word is the type, everything else is the filename
                         val parts = rest.split("\\s+".toRegex())
                         if (parts.size >= 2) parts.dropLast(1).joinToString(" ") else rest
                     }
-                    // Return just the filename (strip any path separators)
                     return filename.substringAfterLast("/").substringAfterLast("\\")
                 }
             }
@@ -1056,7 +1061,6 @@ class MainActivity: FlutterFragmentActivity() {
 
         val supportedAudioExt = setOf(".flac", ".m4a", ".mp3", ".opus", ".ogg")
         val audioFiles = mutableListOf<Pair<DocumentFile, String>>()
-        // CUE files: (cueDoc, parentDir) — we need the parent to find sibling audio
         val cueFiles = mutableListOf<Pair<DocumentFile, DocumentFile>>()
         val visitedDirUris = mutableSetOf<String>()
         val safChildLookupCache = mutableMapOf<String, Map<String, DocumentFile>>()
@@ -1141,7 +1145,6 @@ class MainActivity: FlutterFragmentActivity() {
         var scanned = 0
         var errors = traversalErrors
 
-        // --- CUE first pass: parse CUE sheets, expand to tracks, track referenced audio ---
         val cueReferencedAudioUris = mutableSetOf<String>()
 
         for ((cueDoc, parentDir) in cueFiles) {
@@ -1180,10 +1183,8 @@ class MainActivity: FlutterFragmentActivity() {
                     continue
                 }
 
-                // Mark this audio file so we skip it in the regular audio pass
                 cueReferencedAudioUris.add(audioDoc.uri.toString())
 
-                // Copy audio to same temp dir so Go can resolve it
                 val tempDir = File(tempCuePath).parent ?: cacheDir.absolutePath
                 val audioName = try { audioDoc.name ?: "audio.flac" } catch (_: Exception) { "audio.flac" }
                 val audioExt = audioName.substringAfterLast('.', "").lowercase(Locale.ROOT)
@@ -1197,7 +1198,6 @@ class MainActivity: FlutterFragmentActivity() {
                     continue
                 }
 
-                // Rename temp audio to its original name so Go can find it by name
                 val renamedAudio = File(tempDir, audioName)
                 val tempAudioFile = File(tempAudioPath)
                 if (renamedAudio.absolutePath != tempAudioFile.absolutePath) {
@@ -1240,14 +1240,12 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // --- Regular audio file pass: skip files referenced by CUE sheets ---
         for ((doc, _) in audioFiles) {
             if (safScanCancel) {
                 updateSafScanProgress { it.isComplete = true }
                 return "[]"
             }
 
-            // Skip audio files that are represented by CUE track entries
             if (cueReferencedAudioUris.contains(doc.uri.toString())) {
                 scanned++
                 val pct = scanned.toDouble() / totalItems.toDouble() * 100.0
@@ -1326,7 +1324,6 @@ class MainActivity: FlutterFragmentActivity() {
             return result.toString()
         }
 
-        // Parse existing files map: URI -> lastModified
         val existingFiles = mutableMapOf<String, Long>()
         try {
             val obj = JSONObject(existingFilesJson)
@@ -1345,20 +1342,15 @@ class MainActivity: FlutterFragmentActivity() {
         }
 
         val supportedAudioExt = setOf(".flac", ".m4a", ".mp3", ".opus", ".ogg")
-        val audioFiles = mutableListOf<Triple<DocumentFile, String, Long>>() // doc, path, lastModified
-        // CUE files to scan: (cueDoc, parentDir, lastModified)
+        val audioFiles = mutableListOf<Triple<DocumentFile, String, Long>>()
         val cueFilesToScan = mutableListOf<Triple<DocumentFile, DocumentFile, Long>>()
-        // Unchanged CUE files: (cueDoc, parentDir) — need to discover audio siblings for skip set
         val unchangedCueFiles = mutableListOf<Pair<DocumentFile, DocumentFile>>()
         val currentUris = mutableSetOf<String>()
         val visitedDirUris = mutableSetOf<String>()
         val safChildLookupCache = mutableMapOf<String, Map<String, DocumentFile>>()
         var traversalErrors = 0
 
-        // Build a map of CUE base URIs -> existing virtual track URIs from the database.
-        // Virtual paths look like "content://...album.cue#track01".
-        // We need this to preserve virtual paths for unchanged CUE files.
-        val existingCueVirtualPaths = mutableMapOf<String, MutableList<String>>() // cueUri -> [virtualPaths]
+        val existingCueVirtualPaths = mutableMapOf<String, MutableList<String>>()
         for (key in existingFiles.keys) {
             val hashIdx = key.indexOf("#track")
             if (hashIdx > 0) {
@@ -1367,7 +1359,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // Collect all files with lastModified
         val queue: ArrayDeque<Pair<DocumentFile, String>> = ArrayDeque()
         queue.add(root to "")
 
@@ -1423,8 +1414,6 @@ class MainActivity: FlutterFragmentActivity() {
                         }
                         queue.add(child to childPath)
                     } else if (child.isFile) {
-                        // Mark file as present first so it cannot be mis-classified as removed
-                        // when provider-specific metadata calls (e.g., lastModified) fail.
                         val uriStr = child.uri.toString()
                         currentUris.add(uriStr)
 
@@ -1436,18 +1425,15 @@ class MainActivity: FlutterFragmentActivity() {
                                 child.lastModified()
                             } catch (_: Exception) { 0L }
 
-                            // Check if any virtual track from this CUE exists with matching modTime
                             val virtualPaths = existingCueVirtualPaths[uriStr]
                             val existingModified = virtualPaths?.firstOrNull()?.let { existingFiles[it] }
 
                             if (existingModified != null && existingModified == lastModified) {
-                                // CUE is unchanged — mark virtual paths as current so they aren't removed
                                 unchangedCueFiles.add(child to dir)
                                 for (vp in virtualPaths) {
                                     currentUris.add(vp)
                                 }
                             } else {
-                                // CUE is new or modified — needs scanning
                                 cueFilesToScan.add(Triple(child, dir, lastModified))
                             }
                         } else if (ext.isNotBlank() && supportedAudioExt.contains(".$ext")) {
@@ -1458,7 +1444,6 @@ class MainActivity: FlutterFragmentActivity() {
                                 existingModified ?: 0L
                             }
 
-                            // Check if file is new or modified
                             if (existingModified == null || existingModified != lastModified) {
                                 audioFiles.add(Triple(child, path, lastModified))
                             }
@@ -1475,7 +1460,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // Find removed files (in existing but not in current)
         val removedUris = existingFiles.keys.filter { !currentUris.contains(it) }
         val totalFiles = currentUris.size
         val filesToProcess = audioFiles.size + cueFilesToScan.size
@@ -1503,7 +1487,6 @@ class MainActivity: FlutterFragmentActivity() {
         var scanned = 0
         var errors = traversalErrors
 
-        // --- CUE first pass: parse new/modified CUE sheets ---
         val cueReferencedAudioUris = mutableSetOf<String>()
 
         for ((cueDoc, parentDir, cueLastModified) in cueFilesToScan) {
@@ -1524,7 +1507,6 @@ class MainActivity: FlutterFragmentActivity() {
             var tempCuePath: String? = null
             var tempAudioPath: String? = null
             try {
-                // Copy CUE to temp
                 tempCuePath = copyUriToTemp(cueDoc.uri, ".cue")
                 if (tempCuePath == null) {
                     errors++
@@ -1533,10 +1515,8 @@ class MainActivity: FlutterFragmentActivity() {
                     continue
                 }
 
-                // Extract the audio filename from the CUE sheet text
                 val audioFileName = extractCueAudioFileName(tempCuePath)
 
-                // Find the referenced audio file as a sibling in the same SAF directory
                 val audioDoc = resolveCueAudioSibling(
                     parentDir = parentDir,
                     cueName = cueName,
@@ -1551,10 +1531,8 @@ class MainActivity: FlutterFragmentActivity() {
                     continue
                 }
 
-                // Mark this audio file so we skip it in the regular audio pass
                 cueReferencedAudioUris.add(audioDoc.uri.toString())
 
-                // Copy audio to same temp dir so Go can resolve it
                 val tempDir = File(tempCuePath).parent ?: cacheDir.absolutePath
                 val audioName = try { audioDoc.name ?: "audio.flac" } catch (_: Exception) { "audio.flac" }
                 val audioExt = audioName.substringAfterLast('.', "").lowercase(Locale.ROOT)
@@ -1568,7 +1546,6 @@ class MainActivity: FlutterFragmentActivity() {
                     continue
                 }
 
-                // Rename temp audio to its original name so Go can find it by name
                 val renamedAudio = File(tempDir, audioName)
                 val tempAudioFile = File(tempAudioPath)
                 if (renamedAudio.absolutePath != tempAudioFile.absolutePath) {
@@ -1576,7 +1553,6 @@ class MainActivity: FlutterFragmentActivity() {
                     tempAudioPath = renamedAudio.absolutePath
                 }
 
-                // Call Go to produce library scan entries for each CUE track
                 val cueResultsJson = Gobackend.scanCueSheetForLibrary(
                     tempCuePath,
                     tempDir,
@@ -1588,7 +1564,6 @@ class MainActivity: FlutterFragmentActivity() {
                 for (j in 0 until cueArray.length()) {
                     val trackObj = cueArray.getJSONObject(j)
                     results.put(trackObj)
-                    // Register each virtual path as current so deletion detection works
                     val virtualPath = trackObj.optString("filePath", "")
                     if (virtualPath.isNotBlank()) {
                         currentUris.add(virtualPath)
@@ -1621,9 +1596,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // Discover audio siblings for unchanged CUE files so we skip them
-        // in the regular audio pass. Copy the .cue to temp (tiny file) to extract
-        // the audio filename, then find the sibling by name.
         for ((cueDoc, parentDir) in unchangedCueFiles) {
             var tempCue: String? = null
             try {
@@ -1648,7 +1620,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // --- Regular audio file pass: skip files referenced by CUE sheets ---
         for ((doc, _, lastModified) in audioFiles) {
             if (safScanCancel) {
                 updateSafScanProgress { it.isComplete = true }
@@ -1661,7 +1632,6 @@ class MainActivity: FlutterFragmentActivity() {
                 return result.toString()
             }
 
-            // Skip audio files that are represented by CUE track entries
             if (cueReferencedAudioUris.contains(doc.uri.toString())) {
                 scanned++
                 val processed = skippedCount + scanned
@@ -1715,7 +1685,6 @@ class MainActivity: FlutterFragmentActivity() {
             }
         }
 
-        // Recalculate removedUris now that CUE virtual paths have been registered
         val finalRemovedUris = existingFiles.keys.filter { !currentUris.contains(it) }
 
         updateSafScanProgress {
@@ -1893,7 +1862,6 @@ class MainActivity: FlutterFragmentActivity() {
 
     override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
-        // Update the intent so receive_sharing_intent can access the new data
         setIntent(intent)
     }
 
@@ -2000,13 +1968,13 @@ class MainActivity: FlutterFragmentActivity() {
                             val response = withContext(Dispatchers.IO) {
                                 Gobackend.getDownloadProgress()
                             }
-                            result.success(response)
+                            result.success(parseJsonPayload(response))
                         }
                         "getAllDownloadProgress" -> {
                             val response = withContext(Dispatchers.IO) {
                                 Gobackend.getAllDownloadProgress()
                             }
-                            result.success(response)
+                            result.success(parseJsonPayload(response))
                         }
                         "initItemProgress" -> {
                             val itemId = call.argument<String>("item_id") ?: ""
@@ -2553,7 +2521,6 @@ class MainActivity: FlutterFragmentActivity() {
                                         val tempPath = copyUriToTemp(uri)
                                             ?: return@withContext """{"error":"Failed to copy SAF file to temp"}"""
                                         try {
-                                            // Replace file_path with temp path for Go
                                             reqObj.put("file_path", tempPath)
                                             val raw = Gobackend.reEnrichFile(reqObj.toString())
                                             val obj = JSONObject(raw)
@@ -2631,7 +2598,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(null)
                         }
-                        // Deezer API methods
                         "searchDeezerAll" -> {
                             val query = call.argument<String>("query") ?: ""
                             val trackLimit = call.argument<Int>("track_limit") ?: 15
@@ -2642,7 +2608,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Tidal search API
                         "searchTidalAll" -> {
                             val query = call.argument<String>("query") ?: ""
                             val trackLimit = call.argument<Int>("track_limit") ?: 15
@@ -2653,7 +2618,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Qobuz search API
                         "searchQobuzAll" -> {
                             val query = call.argument<String>("query") ?: ""
                             val trackLimit = call.argument<Int>("track_limit") ?: 15
@@ -2783,7 +2747,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Log methods
                         "getLogs" -> {
                             val response = withContext(Dispatchers.IO) {
                                 Gobackend.getLogs()
@@ -2816,7 +2779,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(null)
                         }
-                        // Extension System methods
                         "initExtensionSystem" -> {
                             val extensionsDir = call.argument<String>("extensions_dir") ?: ""
                             val dataDir = call.argument<String>("data_dir") ?: ""
@@ -2961,7 +2923,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(null)
                         }
-                        // Extension Auth API methods
                         "getExtensionPendingAuth" -> {
                             val extensionId = call.argument<String>("extension_id") ?: ""
                             val response = withContext(Dispatchers.IO) {
@@ -3011,7 +2972,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Extension FFmpeg API
                         "getPendingFFmpegCommand" -> {
                             val commandId = call.argument<String>("command_id") ?: ""
                             val response = withContext(Dispatchers.IO) {
@@ -3039,7 +2999,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Extension Custom Search API
                         "customSearchWithExtension" -> {
                             val extensionId = call.argument<String>("extension_id") ?: ""
                             val query = call.argument<String>("query") ?: ""
@@ -3055,7 +3014,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Extension URL Handler API
                         "handleURLWithExtension" -> {
                             val url = call.argument<String>("url") ?: ""
                             val response = withContext(Dispatchers.IO) {
@@ -3100,7 +3058,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Extension Post-Processing API
                         "runPostProcessing" -> {
                             val filePath = call.argument<String>("file_path") ?: ""
                             val metadataJson = call.argument<String>("metadata") ?: ""
@@ -3144,7 +3101,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Extension Store
                         "initExtensionStore" -> {
                             val cacheDir = call.argument<String>("cache_dir") ?: ""
                             withContext(Dispatchers.IO) {
@@ -3206,7 +3162,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(null)
                         }
-                        // Extension Home Feed (Explore)
                         "getExtensionHomeFeed" -> {
                             val extensionId = call.argument<String>("extension_id") ?: ""
                             val response = withContext(Dispatchers.IO) {
@@ -3221,7 +3176,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // Local Library Scanning
                         "setLibraryCoverCacheDir" -> {
                             val cacheDir = call.argument<String>("cache_dir") ?: ""
                             withContext(Dispatchers.IO) {
@@ -3298,7 +3252,7 @@ class MainActivity: FlutterFragmentActivity() {
                                     Gobackend.getLibraryScanProgressJSON()
                                 }
                             }
-                            result.success(response)
+                            result.success(parseJsonPayload(response))
                         }
                         "cancelLibraryScan" -> {
                             withContext(Dispatchers.IO) {
@@ -3326,7 +3280,6 @@ class MainActivity: FlutterFragmentActivity() {
                             }
                             result.success(response)
                         }
-                        // CUE Sheet Parsing
                         "parseCueSheet" -> {
                             val cuePath = call.argument<String>("cue_path") ?: ""
                             val audioDir = call.argument<String>("audio_dir") ?: ""
@@ -3338,17 +3291,14 @@ class MainActivity: FlutterFragmentActivity() {
                                             ?: return@withContext """{"error":"Failed to copy CUE file to temp"}"""
                                         var tempAudioPath: String? = null
                                         try {
-                                            // Extract audio filename from CUE text
                                             val audioFileName = extractCueAudioFileName(tempCuePath)
 
-                                            // Try to find the audio sibling in SAF
                                             var audioDoc: DocumentFile? = null
                                             val parentDir = safParentDir(uri)
                                             if (parentDir != null && !audioFileName.isNullOrBlank()) {
                                                 audioDoc = try { parentDir.findFile(audioFileName) } catch (_: Exception) { null }
                                             }
 
-                                            // Fallback: try common extensions with the CUE base name
                                             if (audioDoc == null && parentDir != null) {
                                                 val cueName = try {
                                                     DocumentFile.fromSingleUri(this@MainActivity, uri)?.name ?: ""
@@ -3367,7 +3317,6 @@ class MainActivity: FlutterFragmentActivity() {
 
                                             val tempDir = File(tempCuePath).parent ?: cacheDir.absolutePath
                                             if (audioDoc != null) {
-                                                // Copy audio to same temp dir with original name
                                                 val audioName = try { audioDoc.name ?: "audio.flac" } catch (_: Exception) { "audio.flac" }
                                                 val audioExt = audioName.substringAfterLast('.', "").lowercase(Locale.ROOT)
                                                 val fallbackExt = if (audioExt.isNotBlank()) ".$audioExt" else null
@@ -3382,15 +3331,11 @@ class MainActivity: FlutterFragmentActivity() {
                                                 }
                                             }
 
-                                            // Parse with audio in temp dir; Go will resolve there
                                             val resultJson = Gobackend.parseCueSheet(tempCuePath, tempDir)
 
-                                            // Replace the temp audio_path with the SAF content:// URI
-                                            // so Dart knows it's a SAF file and handles it accordingly
                                             if (audioDoc != null) {
                                                 val resultObj = JSONObject(resultJson)
                                                 resultObj.put("audio_path", audioDoc.uri.toString())
-                                                // Also pass the original CUE URI for reference
                                                 resultObj.put("cue_path", cuePath)
                                                 resultObj.toString()
                                             } else {

go_backend/audio_metadata.go

@@ -498,7 +498,13 @@ func extractUserTextFrame(data []byte) (string, string) {
 
 func isLyricsDescription(description string) bool {
 	switch strings.ToLower(strings.TrimSpace(description)) {
-	case "lyrics", "lyric", "unsyncedlyrics", "unsynced lyrics", "lrc":
+	case
+		"lyrics",
+		"lyric",
+		"unsyncedlyrics",
+		"unsynced lyrics",
+		"uslt",
+		"lrc":
 		return true
 	default:
 		return false

go_backend/audio_metadata_mp3_test.go

@@ -0,0 +1,133 @@
+package gobackend
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func ffmpegCommand(args ...string) *exec.Cmd {
+	if ffmpegPath, err := exec.LookPath("ffmpeg"); err == nil {
+		return exec.Command(ffmpegPath, args...)
+	}
+	return exec.Command("ffmpeg", args...)
+}
+
+func runFFmpegTestCommand(t *testing.T, args ...string) {
+	t.Helper()
+	cmd := ffmpegCommand(args...)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("ffmpeg failed: %v\n%s", err, string(output))
+	}
+}
+
+func TestExtractLyricsReadsMp3AfterCoverEmbed(t *testing.T) {
+	if _, err := exec.LookPath("ffmpeg"); err != nil {
+		t.Skip("ffmpeg not available")
+	}
+
+	tempDir := t.TempDir()
+	sourceFlac := filepath.Join(tempDir, "source.flac")
+	baseMp3 := filepath.Join(tempDir, "base.mp3")
+	finalMp3 := filepath.Join(tempDir, "final.mp3")
+	coverPath := filepath.Join(tempDir, "cover.jpg")
+	lyrics := "[ti:Test Song]\n[ar:Test Artist]\n[00:00.00]Hello from embedded lyrics"
+
+	runFFmpegTestCommand(
+		t,
+		"-y",
+		"-f",
+		"lavfi",
+		"-i",
+		"sine=frequency=440:duration=1",
+		"-c:a",
+		"flac",
+		sourceFlac,
+	)
+
+	runFFmpegTestCommand(
+		t,
+		"-y",
+		"-f",
+		"lavfi",
+		"-i",
+		"color=c=red:s=32x32:d=1",
+		"-frames:v",
+		"1",
+		coverPath,
+	)
+
+	runFFmpegTestCommand(
+		t,
+		"-y",
+		"-i",
+		sourceFlac,
+		"-b:a",
+		"320k",
+		"-metadata",
+		"title=Test Song",
+		"-metadata",
+		"artist=Test Artist",
+		"-metadata",
+		"lyrics="+lyrics,
+		baseMp3,
+	)
+
+	runFFmpegTestCommand(
+		t,
+		"-y",
+		"-i",
+		baseMp3,
+		"-i",
+		coverPath,
+		"-map",
+		"0:a",
+		"-map_metadata",
+		"-1",
+		"-map",
+		"1:0",
+		"-c:v:0",
+		"copy",
+		"-id3v2_version",
+		"3",
+		"-metadata",
+		"title=Test Song",
+		"-metadata",
+		"artist=Test Artist",
+		"-metadata",
+		"lyrics="+lyrics,
+		"-metadata:s:v",
+		"title=Album cover",
+		"-metadata:s:v",
+		"comment=Cover (front)",
+		"-c:a",
+		"copy",
+		finalMp3,
+	)
+
+	meta, err := ReadID3Tags(finalMp3)
+	if err != nil {
+		t.Fatalf("ReadID3Tags failed: %v", err)
+	}
+	if meta == nil {
+		t.Fatalf("ReadID3Tags returned nil metadata")
+	}
+
+	embeddedLyrics, err := ExtractLyrics(finalMp3)
+	if err != nil {
+		t.Fatalf("ExtractLyrics failed: %v (metadata=%+v)", err, meta)
+	}
+	if !strings.Contains(embeddedLyrics, "Hello from embedded lyrics") {
+		t.Fatalf("embedded lyrics missing, got %q (metadata=%+v)", embeddedLyrics, meta)
+	}
+	if !strings.Contains(meta.Lyrics, "Hello from embedded lyrics") {
+		t.Fatalf("ReadID3Tags lyrics missing, got %+v", meta)
+	}
+
+	if _, err := os.Stat(finalMp3); err != nil {
+		t.Fatalf("expected final mp3 to exist: %v", err)
+	}
+}

go_backend/cover.go

@@ -17,6 +17,8 @@ const (
 // Deezer CDN supports these sizes: 56, 250, 500, 1000, 1400, 1800
 var deezerSizeRegex = regexp.MustCompile(`/(\d+)x(\d+)-\d+-\d+-\d+-\d+\.jpg$`)
 
+var tidalSizeRegex = regexp.MustCompile(`/\d+x\d+\.jpg$`)
+
 func convertSmallToMedium(imageURL string) string {
 	if strings.Contains(imageURL, spotifySize300) {
 		return strings.Replace(imageURL, spotifySize300, spotifySize640, 1)
@@ -40,7 +42,6 @@ func downloadCoverToMemory(coverURL string, maxQuality bool) ([]byte, error) {
 		maxURL := upgradeToMaxQuality(downloadURL)
 		if maxURL != downloadURL {
 			downloadURL = maxURL
-			// Log already printed by upgradeToMaxQuality for Deezer
 			if strings.Contains(coverURL, "scdn.co") || strings.Contains(coverURL, "spotifycdn") {
 				GoLog("[Cover] Spotify: upgraded to max resolution (~2000x2000)")
 			}
@@ -86,16 +87,22 @@ func downloadCoverToMemory(coverURL string, maxQuality bool) ([]byte, error) {
 }
 
 func upgradeToMaxQuality(coverURL string) string {
-	// Spotify CDN upgrade
 	if strings.Contains(coverURL, spotifySize640) {
 		return strings.Replace(coverURL, spotifySize640, spotifySizeMax, 1)
 	}
 
-	// Deezer CDN upgrade
 	if strings.Contains(coverURL, "cdn-images.dzcdn.net") {
 		return upgradeDeezerCover(coverURL)
 	}
 
+	if strings.Contains(coverURL, "resources.tidal.com") {
+		return upgradeTidalCover(coverURL)
+	}
+
+	if strings.Contains(coverURL, "static.qobuz.com") {
+		return upgradeQobuzCover(coverURL)
+	}
+
 	return coverURL
 }
 
@@ -111,12 +118,35 @@ func upgradeDeezerCover(coverURL string) string {
 	return upgraded
 }
 
+func upgradeTidalCover(coverURL string) string {
+	if !strings.Contains(coverURL, "resources.tidal.com") {
+		return coverURL
+	}
+
+	upgraded := tidalSizeRegex.ReplaceAllString(coverURL, "/origin.jpg")
+	if upgraded != coverURL {
+		GoLog("[Cover] Tidal: upgraded to origin resolution")
+	}
+	return upgraded
+}
+
+func upgradeQobuzCover(coverURL string) string {
+	if !strings.Contains(coverURL, "static.qobuz.com") {
+		return coverURL
+	}
+
+	upgraded := qobuzImageSizeRe.ReplaceAllString(coverURL, "_max.jpg")
+	if upgraded != coverURL {
+		GoLog("[Cover] Qobuz: upgraded to max resolution")
+	}
+	return upgraded
+}
+
 func GetCoverFromSpotify(imageURL string, maxQuality bool) string {
 	if imageURL == "" {
 		return ""
 	}
 
-	// Always upgrade small to medium first
 	result := convertSmallToMedium(imageURL)
 
 	if maxQuality {

go_backend/cue_parser.go

@@ -13,7 +13,6 @@ import (
 
 // CueSheet represents a parsed .cue file
 type CueSheet struct {
-	// Album-level metadata
 	Performer string     `json:"performer"`
 	Title     string     `json:"title"`
 	FileName  string     `json:"file_name"`
@@ -32,7 +31,6 @@ type CueTrack struct {
 	Performer string `json:"performer"`
 	ISRC      string `json:"isrc,omitempty"`
 	Composer  string `json:"composer,omitempty"`
-	// Index positions in seconds (fractional)
 	StartTime float64 `json:"start_time"` // INDEX 01 in seconds
 	PreGap    float64 `json:"pre_gap"`    // INDEX 00 in seconds (or -1 if not present)
 }
@@ -82,7 +80,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 			continue
 		}
 
-		// Handle BOM at start of file
 		if strings.HasPrefix(line, "\xef\xbb\xbf") {
 			line = strings.TrimPrefix(line, "\xef\xbb\xbf")
 			line = strings.TrimSpace(line)
@@ -90,7 +87,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 
 		upper := strings.ToUpper(line)
 
-		// REM commands (album-level metadata)
 		if strings.HasPrefix(upper, "REM ") {
 			matches := reRemCommand.FindStringSubmatch(line)
 			if len(matches) == 3 {
@@ -136,9 +132,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 
 		if strings.HasPrefix(upper, "FILE ") {
 			rest := line[len("FILE "):]
-			// Extract filename and type
-			// Format: FILE "filename.flac" WAVE
-			// or: FILE filename.flac WAVE
 			fname, ftype := parseCueFileLine(rest)
 			sheet.FileName = fname
 			sheet.FileType = ftype
@@ -146,7 +139,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 		}
 
 		if strings.HasPrefix(upper, "TRACK ") {
-			// Save previous track
 			if currentTrack != nil {
 				sheet.Tracks = append(sheet.Tracks, *currentTrack)
 			}
@@ -184,7 +176,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 			continue
 		}
 
-		// SONGWRITER (used as composer sometimes)
 		if strings.HasPrefix(upper, "SONGWRITER ") {
 			value := unquoteCue(line[len("SONGWRITER "):])
 			if currentTrack != nil {
@@ -196,7 +187,6 @@ func ParseCueFile(cuePath string) (*CueSheet, error) {
 		}
 	}
 
-	// Don't forget the last track
 	if currentTrack != nil {
 		sheet.Tracks = append(sheet.Tracks, *currentTrack)
 	}

go_backend/deezer.go

@@ -1181,7 +1181,7 @@ func (c *DeezerClient) getJSON(ctx context.Context, endpoint string, dst interfa
 
 	for attempt := 0; attempt <= deezerMaxRetries; attempt++ {
 		if attempt > 0 {
-			delay := deezerRetryDelay * time.Duration(1<<(attempt-1)) // Exponential backoff
+			delay := deezerRetryDelay * time.Duration(1<<(attempt-1))
 			GoLog("[Deezer] Retry %d/%d after %v...\n", attempt, deezerMaxRetries, delay)
 			time.Sleep(delay)
 		}
@@ -1194,7 +1194,6 @@ func (c *DeezerClient) getJSON(ctx context.Context, endpoint string, dst interfa
 		lastErr = err
 		errStr := err.Error()
 
-		// Check if error is retryable
 		isRetryable := strings.Contains(errStr, "timeout") ||
 			strings.Contains(errStr, "connection reset") ||
 			strings.Contains(errStr, "connection refused") ||

go_backend/deezer_download.go

@@ -319,7 +319,6 @@ func (c *DeezerClient) GetMusicDLDownloadURL(deezerTrackURL string) (string, err
 		return "", fmt.Errorf("MusicDL error: %s", errMsg)
 	}
 
-	// Try various response fields for download URL
 	for _, key := range []string{"download_url", "url", "link"} {
 		if urlVal, ok := raw[key].(string); ok && strings.TrimSpace(urlVal) != "" {
 			return strings.TrimSpace(urlVal), nil

go_backend/exports.go

@@ -48,7 +48,6 @@ func CheckAvailability(spotifyID, isrc string) (string, error) {
 }
 
 // SetSongLinkNetworkOptions is kept for backward compatibility.
-// It now applies global network compatibility options for all backend API requests.
 func SetSongLinkNetworkOptions(allowHTTP, insecureTLS bool) {
 	SetNetworkCompatibilityOptions(allowHTTP, insecureTLS)
 }
@@ -407,24 +406,6 @@ func DownloadTrack(requestJSON string) (string, error) {
 			}
 		}
 		err = deezerErr
-	case "youtube":
-		youtubeResult, youtubeErr := downloadFromYouTube(req)
-		if youtubeErr == nil {
-			result = DownloadResult{
-				FilePath:    youtubeResult.FilePath,
-				BitDepth:    0,
-				SampleRate:  0,
-				Title:       youtubeResult.Title,
-				Artist:      youtubeResult.Artist,
-				Album:       youtubeResult.Album,
-				ReleaseDate: youtubeResult.ReleaseDate,
-				TrackNumber: youtubeResult.TrackNumber,
-				DiscNumber:  youtubeResult.DiscNumber,
-				ISRC:        youtubeResult.ISRC,
-				LyricsLRC:   youtubeResult.LyricsLRC,
-			}
-		}
-		err = youtubeErr
 	default:
 		return errorResponse("Unknown service: " + req.Service)
 	}
@@ -476,7 +457,7 @@ func DownloadByStrategy(requestJSON string) (string, error) {
 	serviceNormalized := strings.ToLower(serviceRaw)
 
 	normalizedReq := req
-	if serviceNormalized == "youtube" || isBuiltInProvider(serviceNormalized) {
+	if isBuiltInProvider(serviceNormalized) {
 		normalizedReq.Service = serviceNormalized
 	}
 
@@ -486,10 +467,6 @@ func DownloadByStrategy(requestJSON string) (string, error) {
 	}
 	normalizedJSON := string(normalizedBytes)
 
-	if serviceNormalized == "youtube" {
-		return DownloadFromYouTube(normalizedJSON)
-	}
-
 	if req.UseExtensions {
 		// Respect strict mode when auto fallback is disabled:
 		// for built-in providers, route directly to selected service only.
@@ -721,29 +698,57 @@ func ReadFileMetadata(filePath string) (string, error) {
 	if isFlac {
 		metadata, err := ReadMetadata(filePath)
 		if err != nil {
-			return "", fmt.Errorf("failed to read metadata: %w", err)
-		}
-		result["title"] = metadata.Title
-		result["artist"] = metadata.Artist
-		result["album"] = metadata.Album
-		result["album_artist"] = metadata.AlbumArtist
-		result["date"] = metadata.Date
-		result["track_number"] = metadata.TrackNumber
-		result["disc_number"] = metadata.DiscNumber
-		result["isrc"] = metadata.ISRC
-		result["lyrics"] = metadata.Lyrics
-		result["genre"] = metadata.Genre
-		result["label"] = metadata.Label
-		result["copyright"] = metadata.Copyright
-		result["composer"] = metadata.Composer
-		result["comment"] = metadata.Comment
+			// File may have wrong extension (e.g. opus saved as .flac).
+			// Try Ogg/Opus parser as fallback before giving up.
+			GoLog("[ReadFileMetadata] FLAC parse failed for %s, trying Ogg fallback: %v\n", filePath, err)
+			oggMeta, oggErr := ReadOggVorbisComments(filePath)
+			if oggErr == nil && oggMeta != nil {
+				result["title"] = oggMeta.Title
+				result["artist"] = oggMeta.Artist
+				result["album"] = oggMeta.Album
+				result["album_artist"] = oggMeta.AlbumArtist
+				result["date"] = oggMeta.Date
+				if oggMeta.Date == "" {
+					result["date"] = oggMeta.Year
+				}
+				result["track_number"] = oggMeta.TrackNumber
+				result["disc_number"] = oggMeta.DiscNumber
+				result["isrc"] = oggMeta.ISRC
+				result["lyrics"] = oggMeta.Lyrics
+				result["genre"] = oggMeta.Genre
+				result["composer"] = oggMeta.Composer
+				result["comment"] = oggMeta.Comment
+				quality, qualityErr := GetOggQuality(filePath)
+				if qualityErr == nil {
+					result["sample_rate"] = quality.SampleRate
+					result["duration"] = quality.Duration
+				}
+			} else {
+				return "", fmt.Errorf("failed to read metadata: %w", err)
+			}
+		} else {
+			result["title"] = metadata.Title
+			result["artist"] = metadata.Artist
+			result["album"] = metadata.Album
+			result["album_artist"] = metadata.AlbumArtist
+			result["date"] = metadata.Date
+			result["track_number"] = metadata.TrackNumber
+			result["disc_number"] = metadata.DiscNumber
+			result["isrc"] = metadata.ISRC
+			result["lyrics"] = metadata.Lyrics
+			result["genre"] = metadata.Genre
+			result["label"] = metadata.Label
+			result["copyright"] = metadata.Copyright
+			result["composer"] = metadata.Composer
+			result["comment"] = metadata.Comment
 
-		quality, qualityErr := GetAudioQuality(filePath)
-		if qualityErr == nil {
-			result["bit_depth"] = quality.BitDepth
-			result["sample_rate"] = quality.SampleRate
-			if quality.SampleRate > 0 && quality.TotalSamples > 0 {
-				result["duration"] = int(quality.TotalSamples / int64(quality.SampleRate))
+			quality, qualityErr := GetAudioQuality(filePath)
+			if qualityErr == nil {
+				result["bit_depth"] = quality.BitDepth
+				result["sample_rate"] = quality.SampleRate
+				if quality.SampleRate > 0 && quality.TotalSamples > 0 {
+					result["duration"] = int(quality.TotalSamples / int64(quality.SampleRate))
+				}
 			}
 		}
 	} else if isM4A {
@@ -910,7 +915,6 @@ func EditFileMetadata(filePath, metadataJSON string) (string, error) {
 		return string(jsonBytes), nil
 	}
 
-	// MP3/Opus: return metadata for Dart-side FFmpeg embedding
 	resp := map[string]any{
 		"success": true,
 		"method":  "ffmpeg",
@@ -1670,62 +1674,6 @@ func errorResponse(msg string) (string, error) {
 	return string(jsonBytes), nil
 }
 
-func DownloadFromYouTube(requestJSON string) (string, error) {
-	var req DownloadRequest
-	if err := json.Unmarshal([]byte(requestJSON), &req); err != nil {
-		return errorResponse("Invalid request: " + err.Error())
-	}
-	applySongLinkRegionFromRequest(&req)
-	defer closeOwnedOutputFD(req.OutputFD)
-
-	req.TrackName = strings.TrimSpace(req.TrackName)
-	req.ArtistName = strings.TrimSpace(req.ArtistName)
-	req.AlbumName = strings.TrimSpace(req.AlbumName)
-	req.AlbumArtist = strings.TrimSpace(req.AlbumArtist)
-	req.OutputDir = strings.TrimSpace(req.OutputDir)
-	req.OutputPath = strings.TrimSpace(req.OutputPath)
-	req.OutputExt = strings.TrimSpace(req.OutputExt)
-
-	if req.OutputPath == "" && req.OutputFD <= 0 && req.OutputDir != "" {
-		AddAllowedDownloadDir(req.OutputDir)
-	}
-
-	youtubeResult, err := downloadFromYouTube(req)
-	if err != nil {
-		return errorResponse(err.Error())
-	}
-
-	resp := DownloadResponse{
-		Success:     true,
-		Message:     "Downloaded from YouTube",
-		FilePath:    youtubeResult.FilePath,
-		Service:     "youtube",
-		Title:       youtubeResult.Title,
-		Artist:      youtubeResult.Artist,
-		Album:       youtubeResult.Album,
-		ReleaseDate: youtubeResult.ReleaseDate,
-		TrackNumber: youtubeResult.TrackNumber,
-		DiscNumber:  youtubeResult.DiscNumber,
-		ISRC:        youtubeResult.ISRC,
-		LyricsLRC:   youtubeResult.LyricsLRC,
-		CoverURL:    req.CoverURL,
-		Genre:       req.Genre,
-		Label:       req.Label,
-		Copyright:   req.Copyright,
-	}
-
-	jsonBytes, _ := json.Marshal(resp)
-	return string(jsonBytes), nil
-}
-
-func IsYouTubeURLExport(urlStr string) bool {
-	return IsYouTubeURL(urlStr)
-}
-
-func ExtractYouTubeVideoIDExport(urlStr string) (string, error) {
-	return ExtractYouTubeVideoID(urlStr)
-}
-
 func DownloadCoverToFile(coverURL string, outputPath string, maxQuality bool) error {
 	if coverURL == "" {
 		return fmt.Errorf("no cover URL provided")
@@ -1958,7 +1906,6 @@ func ReEnrichFile(requestJSON string) (string, error) {
 		}
 	}
 
-	// Log metadata summary before embedding
 	GoLog("[ReEnrich] Metadata to embed: title=%s, artist=%s, album=%s, albumArtist=%s\n",
 		req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist)
 	GoLog("[ReEnrich] track=%d, disc=%d, date=%s, isrc=%s, genre=%s, label=%s\n",
@@ -2041,7 +1988,6 @@ func ReEnrichFile(requestJSON string) (string, error) {
 		}
 	}
 
-	// Build enriched metadata response for Dart (includes online search results)
 	enrichedMeta := map[string]interface{}{
 		"track_name":   req.TrackName,
 		"artist_name":  req.ArtistName,
@@ -2187,12 +2133,6 @@ func LoadExtensionFromPath(filePath string) (string, error) {
 		return "", err
 	}
 
-	settingsStore := GetExtensionSettingsStore()
-	settings := settingsStore.GetAll(ext.ID)
-	if len(settings) > 0 {
-		manager.InitializeExtension(ext.ID, settings)
-	}
-
 	result := map[string]interface{}{
 		"id":           ext.ID,
 		"name":         ext.Manifest.Name,
@@ -2226,12 +2166,6 @@ func UpgradeExtensionFromPath(filePath string) (string, error) {
 		return "", err
 	}
 
-	settingsStore := GetExtensionSettingsStore()
-	settings := settingsStore.GetAll(ext.ID)
-	if len(settings) > 0 {
-		manager.InitializeExtension(ext.ID, settings)
-	}
-
 	result := map[string]interface{}{
 		"id":           ext.ID,
 		"display_name": ext.Manifest.DisplayName,
@@ -3226,11 +3160,7 @@ func GetStoreExtensionsJSON(forceRefresh bool) (string, error) {
 		return "", fmt.Errorf("extension store not initialized")
 	}
 
-	if forceRefresh {
-		store.FetchRegistry(true)
-	}
-
-	extensions, err := store.GetExtensionsWithStatus()
+	extensions, err := store.getExtensionsWithStatus(forceRefresh)
 	if err != nil {
 		return "", err
 	}
@@ -3324,12 +3254,14 @@ func callExtensionFunctionJSON(extensionID, functionName string, timeout time.Du
 	if !ext.Enabled {
 		return "", fmt.Errorf("extension '%s' is disabled", extensionID)
 	}
+	vm, err := ext.lockReadyVM()
+	if err != nil {
+		return "", err
+	}
+	defer ext.VMMu.Unlock()
 
 	// Goja runtime is not thread-safe; guard direct extension.*() calls with VMMu
 	// to avoid races with other provider calls (e.g. getAlbum/getPlaylist).
-	ext.VMMu.Lock()
-	defer ext.VMMu.Unlock()
-
 	script := fmt.Sprintf(`
 		(function() {
 			if (typeof extension !== 'undefined' && typeof extension.%s === 'function') {
@@ -3339,7 +3271,7 @@ func callExtensionFunctionJSON(extensionID, functionName string, timeout time.Du
 		})()
 	`, functionName, functionName)
 
-	result, err := RunWithTimeoutAndRecover(ext.VM, script, timeout)
+	result, err := RunWithTimeoutAndRecover(vm, script, timeout)
 	if err != nil {
 		return "", fmt.Errorf("%s failed: %w", functionName, err)
 	}

go_backend/extension_manager.go

@@ -44,16 +44,76 @@ func compareVersions(v1, v2 string) int {
 }
 
 type LoadedExtension struct {
-	ID        string             `json:"id"`
-	Manifest  *ExtensionManifest `json:"manifest"`
-	VM        *goja.Runtime      `json:"-"`
-	VMMu      sync.Mutex         `json:"-"`
-	runtime   *ExtensionRuntime
-	Enabled   bool   `json:"enabled"`
-	Error     string `json:"error,omitempty"`
-	DataDir   string `json:"data_dir"`
-	SourceDir string `json:"source_dir"`
-	IconPath  string `json:"icon_path"`
+	ID          string             `json:"id"`
+	Manifest    *ExtensionManifest `json:"manifest"`
+	VM          *goja.Runtime      `json:"-"`
+	VMMu        sync.Mutex         `json:"-"`
+	runtime     *ExtensionRuntime
+	initialized bool
+	Enabled     bool   `json:"enabled"`
+	Error       string `json:"error,omitempty"`
+	DataDir     string `json:"data_dir"`
+	SourceDir   string `json:"source_dir"`
+	IconPath    string `json:"icon_path"`
+}
+
+func getExtensionInitSettings(extensionID string) map[string]interface{} {
+	settings := GetExtensionSettingsStore().GetAll(extensionID)
+	if len(settings) == 0 {
+		return settings
+	}
+
+	filtered := make(map[string]interface{}, len(settings))
+	for key, value := range settings {
+		if strings.HasPrefix(key, "_") {
+			continue
+		}
+		filtered[key] = value
+	}
+	return filtered
+}
+
+func ensureRuntimeReadyLocked(ext *LoadedExtension, applyStoredSettings bool) error {
+	if ext.VM == nil || ext.runtime == nil {
+		if err := initializeVMLocked(ext); err != nil {
+			ext.Error = err.Error()
+			ext.Enabled = false
+			return err
+		}
+	}
+
+	if applyStoredSettings && !ext.initialized {
+		settings := getExtensionInitSettings(ext.ID)
+		if len(settings) > 0 {
+			if err := initializeExtensionWithSettingsLocked(ext, settings); err != nil {
+				teardownVMLocked(ext)
+				ext.Error = err.Error()
+				ext.Enabled = false
+				return err
+			}
+		} else {
+			ext.initialized = true
+		}
+	}
+
+	ext.Error = ""
+	return nil
+}
+
+func (ext *LoadedExtension) ensureRuntimeReady() error {
+	ext.VMMu.Lock()
+	defer ext.VMMu.Unlock()
+
+	return ensureRuntimeReadyLocked(ext, true)
+}
+
+func (ext *LoadedExtension) lockReadyVM() (*goja.Runtime, error) {
+	ext.VMMu.Lock()
+	if err := ensureRuntimeReadyLocked(ext, true); err != nil {
+		ext.VMMu.Unlock()
+		return nil, err
+	}
+	return ext.VM, nil
 }
 
 type ExtensionManager struct {
@@ -220,10 +280,10 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 		SourceDir: extDir,
 	}
 
-	if err := m.initializeVM(ext); err != nil {
+	if err := validateExtensionLoad(ext); err != nil {
 		ext.Error = err.Error()
 		ext.Enabled = false
-		GoLog("[Extension] Failed to initialize VM for %s: %v\n", manifest.Name, err)
+		GoLog("[Extension] Failed to validate extension %s: %v\n", manifest.Name, err)
 	}
 
 	m.extensions[manifest.Name] = ext
@@ -232,7 +292,10 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 	return ext, nil
 }
 
-func (m *ExtensionManager) initializeVM(ext *LoadedExtension) error {
+func initializeVMLocked(ext *LoadedExtension) error {
+	ext.VM = nil
+	ext.runtime = nil
+	ext.initialized = false
 	vm := goja.New()
 	ext.VM = vm
 
@@ -279,6 +342,136 @@ func (m *ExtensionManager) initializeVM(ext *LoadedExtension) error {
 	return nil
 }
 
+func (m *ExtensionManager) initializeVM(ext *LoadedExtension) error {
+	ext.VMMu.Lock()
+	defer ext.VMMu.Unlock()
+	return initializeVMLocked(ext)
+}
+
+func initializeExtensionWithSettingsLocked(
+	ext *LoadedExtension,
+	settings map[string]interface{},
+) error {
+	if ext.VM == nil {
+		return fmt.Errorf("Extension failed to load. Please reinstall the extension")
+	}
+
+	settingsJSON, err := json.Marshal(settings)
+	if err != nil {
+		return fmt.Errorf("Failed to save settings")
+	}
+
+	script := fmt.Sprintf(`
+		(function() {
+			var settings = %s;
+			if (typeof extension !== 'undefined' && typeof extension.initialize === 'function') {
+				try {
+					extension.initialize(settings);
+					return { success: true };
+				} catch (e) {
+					return { success: false, error: e.toString() };
+				}
+			}
+			return { success: true, message: 'no initialize function' };
+		})()
+	`, string(settingsJSON))
+
+	result, err := ext.VM.RunString(script)
+	if err != nil {
+		ext.Error = fmt.Sprintf("initialize failed: %v", err)
+		ext.Enabled = false
+		GoLog("[Extension] Initialize error for %s: %v\n", ext.ID, err)
+		return err
+	}
+
+	if result != nil && !goja.IsUndefined(result) {
+		exported := result.Export()
+		if resultMap, ok := exported.(map[string]interface{}); ok {
+			if success, ok := resultMap["success"].(bool); ok && !success {
+				errMsg := "unknown error"
+				if e, ok := resultMap["error"].(string); ok {
+					errMsg = e
+				}
+				ext.Error = errMsg
+				ext.Enabled = false
+				GoLog("[Extension] Initialize failed for %s: %s\n", ext.ID, errMsg)
+				return fmt.Errorf("initialize failed: %s", errMsg)
+			}
+		}
+	}
+
+	ext.initialized = true
+	GoLog("[Extension] Initialized %s\n", ext.ID)
+	return nil
+}
+
+func runCleanupLocked(ext *LoadedExtension) error {
+	if ext.VM != nil {
+		script := `
+			(function() {
+				if (typeof extension !== 'undefined' && typeof extension.cleanup === 'function') {
+					try {
+						extension.cleanup();
+						return { success: true };
+					} catch (e) {
+						return { success: false, error: e.toString() };
+					}
+				}
+				return { success: true, message: 'no cleanup function' };
+			})()
+		`
+
+		result, err := ext.VM.RunString(script)
+		if err != nil {
+			return err
+		}
+
+		if result != nil && !goja.IsUndefined(result) {
+			exported := result.Export()
+			if resultMap, ok := exported.(map[string]interface{}); ok {
+				if success, ok := resultMap["success"].(bool); ok && !success {
+					errMsg := "unknown error"
+					if e, ok := resultMap["error"].(string); ok {
+						errMsg = e
+					}
+					return fmt.Errorf("cleanup failed: %s", errMsg)
+				}
+			}
+		}
+
+		if result != nil && !goja.IsUndefined(result) && !goja.IsNull(result) {
+			GoLog("[Extension] Cleanup called for %s\n", ext.ID)
+		}
+	}
+	return nil
+}
+
+func teardownVMLocked(ext *LoadedExtension) {
+	if err := runCleanupLocked(ext); err != nil {
+		GoLog("[Extension] Error calling cleanup for %s: %v\n", ext.ID, err)
+	}
+	if ext.runtime != nil {
+		if err := ext.runtime.flushStorageNow(); err != nil {
+			GoLog("[Extension] Failed to flush storage for %s: %v\n", ext.ID, err)
+		}
+		ext.runtime.closeStorageFlusher()
+	}
+	ext.runtime = nil
+	ext.VM = nil
+	ext.initialized = false
+}
+
+func validateExtensionLoad(ext *LoadedExtension) error {
+	ext.VMMu.Lock()
+	defer ext.VMMu.Unlock()
+
+	if err := initializeVMLocked(ext); err != nil {
+		return err
+	}
+	teardownVMLocked(ext)
+	return nil
+}
+
 func (m *ExtensionManager) UnloadExtension(extensionID string) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()
@@ -288,21 +481,9 @@ func (m *ExtensionManager) UnloadExtension(extensionID string) error {
 		return fmt.Errorf("Extension not found")
 	}
 
-	if ext.VM != nil {
-		cleanup, err := ext.VM.RunString("typeof extension !== 'undefined' && typeof extension.cleanup === 'function' ? extension.cleanup() : null")
-		if err != nil {
-			GoLog("[Extension] Error calling cleanup for %s: %v\n", extensionID, err)
-		} else if cleanup != nil && !goja.IsUndefined(cleanup) && !goja.IsNull(cleanup) {
-			GoLog("[Extension] Cleanup called for %s\n", extensionID)
-		}
-	}
-	if ext.runtime != nil {
-		if err := ext.runtime.flushStorageNow(); err != nil {
-			GoLog("[Extension] Failed to flush storage for %s: %v\n", extensionID, err)
-		}
-		ext.runtime.closeStorageFlusher()
-		ext.runtime = nil
-	}
+	ext.VMMu.Lock()
+	teardownVMLocked(ext)
+	ext.VMMu.Unlock()
 
 	delete(m.extensions, extensionID)
 	GoLog("[Extension] Unloaded extension: %s\n", extensionID)
@@ -341,7 +522,21 @@ func (m *ExtensionManager) SetExtensionEnabled(extensionID string, enabled bool)
 		return fmt.Errorf("Extension not found")
 	}
 
-	ext.Enabled = enabled
+	if enabled {
+		ext.Enabled = true
+		if err := ext.ensureRuntimeReady(); err != nil {
+			store := GetExtensionSettingsStore()
+			ext.Enabled = false
+			_ = store.Set(extensionID, "_enabled", false)
+			return err
+		}
+	} else {
+		ext.Enabled = false
+		ext.Error = ""
+		ext.VMMu.Lock()
+		teardownVMLocked(ext)
+		ext.VMMu.Unlock()
+	}
 	GoLog("[Extension] %s %s\n", extensionID, map[bool]string{true: "enabled", false: "disabled"}[enabled])
 
 	store := GetExtensionSettingsStore()
@@ -436,10 +631,10 @@ func (m *ExtensionManager) loadExtensionFromDirectory(dirPath string) (*LoadedEx
 		}
 	}
 
-	if err := m.initializeVM(ext); err != nil {
+	if err := validateExtensionLoad(ext); err != nil {
 		ext.Error = err.Error()
 		ext.Enabled = false
-		GoLog("[Extension] Failed to initialize VM for %s: %v\n", manifest.Name, err)
+		GoLog("[Extension] Failed to validate extension %s: %v\n", manifest.Name, err)
 	}
 
 	m.extensions[manifest.Name] = ext
@@ -590,10 +785,14 @@ func (m *ExtensionManager) UpgradeExtension(filePath string) (*LoadedExtension,
 		SourceDir: extDir,
 	}
 
-	if err := m.initializeVM(ext); err != nil {
+	if wasEnabled {
+		if err := ext.ensureRuntimeReady(); err != nil {
+			GoLog("[Extension] Failed to initialize upgraded extension %s: %v\n", newManifest.Name, err)
+		}
+	} else if err := validateExtensionLoad(ext); err != nil {
 		ext.Error = err.Error()
 		ext.Enabled = false
-		GoLog("[Extension] Failed to initialize VM for %s: %v\n", newManifest.Name, err)
+		GoLog("[Extension] Failed to validate upgraded extension %s: %v\n", newManifest.Name, err)
 	}
 
 	m.mu.Lock()
@@ -790,56 +989,13 @@ func (m *ExtensionManager) InitializeExtension(extensionID string, settings map[
 		return fmt.Errorf("Extension not found")
 	}
 
-	if ext.VM == nil {
-		return fmt.Errorf("Extension failed to load. Please reinstall the extension")
-	}
+	ext.VMMu.Lock()
+	defer ext.VMMu.Unlock()
 
-	settingsJSON, err := json.Marshal(settings)
-	if err != nil {
-		return fmt.Errorf("Failed to save settings")
-	}
-
-	script := fmt.Sprintf(`
-		(function() {
-			var settings = %s;
-			if (typeof extension !== 'undefined' && typeof extension.initialize === 'function') {
-				try {
-					extension.initialize(settings);
-					return { success: true };
-				} catch (e) {
-					return { success: false, error: e.toString() };
-				}
-			}
-			return { success: true, message: 'no initialize function' };
-		})()
-	`, string(settingsJSON))
-
-	result, err := ext.VM.RunString(script)
-	if err != nil {
-		ext.Error = fmt.Sprintf("initialize failed: %v", err)
-		ext.Enabled = false
-		GoLog("[Extension] Initialize error for %s: %v\n", extensionID, err)
+	if err := ensureRuntimeReadyLocked(ext, false); err != nil {
 		return err
 	}
-
-	if result != nil && !goja.IsUndefined(result) {
-		exported := result.Export()
-		if resultMap, ok := exported.(map[string]interface{}); ok {
-			if success, ok := resultMap["success"].(bool); ok && !success {
-				errMsg := "unknown error"
-				if e, ok := resultMap["error"].(string); ok {
-					errMsg = e
-				}
-				ext.Error = errMsg
-				ext.Enabled = false
-				GoLog("[Extension] Initialize failed for %s: %s\n", extensionID, errMsg)
-				return fmt.Errorf("initialize failed: %s", errMsg)
-			}
-		}
-	}
-
-	GoLog("[Extension] Initialized %s\n", extensionID)
-	return nil
+	return initializeExtensionWithSettingsLocked(ext, settings)
 }
 
 func (m *ExtensionManager) CleanupExtension(extensionID string) error {
@@ -854,41 +1010,12 @@ func (m *ExtensionManager) CleanupExtension(extensionID string) error {
 	if ext.VM == nil {
 		return nil
 	}
-
-	script := `
-		(function() {
-			if (typeof extension !== 'undefined' && typeof extension.cleanup === 'function') {
-				try {
-					extension.cleanup();
-					return { success: true };
-				} catch (e) {
-					return { success: false, error: e.toString() };
-				}
-			}
-			return { success: true, message: 'no cleanup function' };
-		})()
-	`
-
-	result, err := ext.VM.RunString(script)
-	if err != nil {
+	ext.VMMu.Lock()
+	defer ext.VMMu.Unlock()
+	if err := runCleanupLocked(ext); err != nil {
 		GoLog("[Extension] Cleanup error for %s: %v\n", extensionID, err)
 		return err
 	}
-
-	if result != nil && !goja.IsUndefined(result) {
-		exported := result.Export()
-		if resultMap, ok := exported.(map[string]interface{}); ok {
-			if success, ok := resultMap["success"].(bool); ok && !success {
-				errMsg := "unknown error"
-				if e, ok := resultMap["error"].(string); ok {
-					errMsg = e
-				}
-				GoLog("[Extension] Cleanup failed for %s: %s\n", extensionID, errMsg)
-				return fmt.Errorf("cleanup failed: %s", errMsg)
-			}
-		}
-	}
-
 	GoLog("[Extension] Cleaned up %s\n", extensionID)
 	return nil
 }
@@ -917,8 +1044,8 @@ func (m *ExtensionManager) InvokeAction(extensionID string, actionName string) (
 		return nil, fmt.Errorf("extension not found: %s", extensionID)
 	}
 
-	if ext.VM == nil {
-		return nil, fmt.Errorf("extension VM not initialized")
+	if err := ext.ensureRuntimeReady(); err != nil {
+		return nil, err
 	}
 
 	if !ext.Enabled {

go_backend/extension_providers.go

@@ -125,6 +125,15 @@ func NewExtensionProviderWrapper(ext *LoadedExtension) *ExtensionProviderWrapper
 	}
 }
 
+func (p *ExtensionProviderWrapper) lockReadyVM() error {
+	vm, err := p.extension.lockReadyVM()
+	if err != nil {
+		return err
+	}
+	p.vm = vm
+	return nil
+}
+
 func (p *ExtensionProviderWrapper) SearchTracks(query string, limit int) (*ExtSearchResult, error) {
 	if !p.extension.Manifest.IsMetadataProvider() {
 		return nil, fmt.Errorf("extension '%s' is not a metadata provider", p.extension.ID)
@@ -133,8 +142,9 @@ func (p *ExtensionProviderWrapper) SearchTracks(query string, limit int) (*ExtSe
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -192,8 +202,9 @@ func (p *ExtensionProviderWrapper) GetTrack(trackID string) (*ExtTrackMetadata,
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -240,8 +251,9 @@ func (p *ExtensionProviderWrapper) GetAlbum(albumID string) (*ExtAlbumMetadata,
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -291,8 +303,9 @@ func (p *ExtensionProviderWrapper) GetArtist(artistID string) (*ExtArtistMetadat
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -345,8 +358,10 @@ func (p *ExtensionProviderWrapper) EnrichTrack(track *ExtTrackMetadata) (*ExtTra
 	if !p.extension.Enabled {
 		return track, nil
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		GoLog("[Extension] EnrichTrack init error for %s: %v\n", p.extension.ID, err)
+		return track, nil
+	}
 	defer p.extension.VMMu.Unlock()
 
 	trackJSON, err := json.Marshal(track)
@@ -405,8 +420,9 @@ func (p *ExtensionProviderWrapper) CheckAvailability(isrc, trackName, artistName
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -452,8 +468,9 @@ func (p *ExtensionProviderWrapper) GetDownloadURL(trackID, quality string) (*Ext
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -501,8 +518,13 @@ func (p *ExtensionProviderWrapper) Download(trackID, quality, outputPath string,
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return &ExtDownloadResult{
+			Success:      false,
+			ErrorMessage: err.Error(),
+			ErrorType:    "init_error",
+		}, nil
+	}
 	defer p.extension.VMMu.Unlock()
 
 	p.vm.Set("__onProgress", func(call goja.FunctionCall) goja.Value {
@@ -1626,8 +1648,9 @@ func (p *ExtensionProviderWrapper) CustomSearch(query string, options map[string
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	if options == nil {
@@ -1707,8 +1730,9 @@ func (p *ExtensionProviderWrapper) HandleURL(url string) (*ExtURLHandleResult, e
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	script := fmt.Sprintf(`
@@ -1792,8 +1816,9 @@ func (p *ExtensionProviderWrapper) MatchTrack(sourceTrack map[string]interface{}
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	sourceJSON, _ := json.Marshal(sourceTrack)
@@ -1862,8 +1887,9 @@ func (p *ExtensionProviderWrapper) PostProcess(filePath string, metadata map[str
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return &PostProcessResult{Success: false, Error: err.Error()}, nil
+	}
 	defer p.extension.VMMu.Unlock()
 
 	metadataJSON, _ := json.Marshal(metadata)
@@ -1924,8 +1950,9 @@ func (p *ExtensionProviderWrapper) PostProcessV2(input PostProcessInput, metadat
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return &PostProcessResult{Success: false, Error: err.Error()}, nil
+	}
 	defer p.extension.VMMu.Unlock()
 
 	metadataJSON, _ := json.Marshal(metadata)
@@ -2182,8 +2209,9 @@ func (p *ExtensionProviderWrapper) FetchLyrics(trackName, artistName, albumName
 	if !p.extension.Enabled {
 		return nil, fmt.Errorf("extension '%s' is disabled", p.extension.ID)
 	}
-
-	p.extension.VMMu.Lock()
+	if err := p.lockReadyVM(); err != nil {
+		return nil, err
+	}
 	defer p.extension.VMMu.Unlock()
 
 	// Use global variables to avoid JS injection issues with special characters in track/artist names

go_backend/extension_store.go

@@ -97,8 +97,8 @@ type StoreExtensionResponse struct {
 	HasUpdate        bool     `json:"has_update"`
 }
 
-func (e *StoreExtension) ToResponse() StoreExtensionResponse {
-	return StoreExtensionResponse{
+func (e *StoreExtension) ToResponse() *StoreExtensionResponse {
+	return &StoreExtensionResponse{
 		ID:            e.ID,
 		Name:          e.Name,
 		DisplayName:   e.getDisplayName(),
@@ -236,7 +236,6 @@ func (s *ExtensionStore) FetchRegistry(forceRefresh bool) (*StoreRegistry, error
 	s.cacheMu.Lock()
 	defer s.cacheMu.Unlock()
 
-	// Check if a registry URL has been configured
 	if s.registryURL == "" {
 		return nil, fmt.Errorf("no registry URL configured. Please add a repository URL first")
 	}
@@ -289,8 +288,8 @@ func (s *ExtensionStore) FetchRegistry(forceRefresh bool) (*StoreRegistry, error
 	return &registry, nil
 }
 
-func (s *ExtensionStore) GetExtensionsWithStatus() ([]StoreExtensionResponse, error) {
-	registry, err := s.FetchRegistry(false)
+func (s *ExtensionStore) getExtensionsWithStatus(forceRefresh bool) ([]*StoreExtensionResponse, error) {
+	registry, err := s.FetchRegistry(forceRefresh)
 	if err != nil {
 		return nil, err
 	}
@@ -304,22 +303,29 @@ func (s *ExtensionStore) GetExtensionsWithStatus() ([]StoreExtensionResponse, er
 		}
 	}
 
-	result := make([]StoreExtensionResponse, len(registry.Extensions))
-	for i, ext := range registry.Extensions {
-		resp := ext.ToResponse()
+	LogDebug("ExtensionStore", "Building store response for %d registry extensions (%d installed)", len(registry.Extensions), len(installed))
 
+	result := make([]*StoreExtensionResponse, 0, len(registry.Extensions))
+	for i := range registry.Extensions {
+		ext := &registry.Extensions[i]
+		resp := ext.ToResponse()
 		if installedVersion, ok := installed[ext.ID]; ok {
 			resp.IsInstalled = true
 			resp.InstalledVersion = installedVersion
 			resp.HasUpdate = compareVersions(ext.Version, installedVersion) > 0
 		}
 
-		result[i] = resp
+		result = append(result, resp)
 	}
 
+	LogDebug("ExtensionStore", "Built store response payload for %d extensions", len(result))
 	return result, nil
 }
 
+func (s *ExtensionStore) GetExtensionsWithStatus() ([]*StoreExtensionResponse, error) {
+	return s.getExtensionsWithStatus(false)
+}
+
 func (s *ExtensionStore) DownloadExtension(extensionID string, destPath string) error {
 	registry, err := s.FetchRegistry(false)
 	if err != nil {
@@ -389,7 +395,6 @@ func ResolveRegistryURL(input string) (string, error) {
 		return input, nil
 	}
 
-	// Try to match https://github.com/<owner>/<repo>[/...]
 	const ghPrefix = "https://github.com/"
 	if !strings.HasPrefix(input, ghPrefix) {
 		// Also accept http:// and upgrade silently.
@@ -470,7 +475,7 @@ func (s *ExtensionStore) GetCategories() []string {
 	}
 }
 
-func (s *ExtensionStore) SearchExtensions(query string, category string) ([]StoreExtensionResponse, error) {
+func (s *ExtensionStore) SearchExtensions(query string, category string) ([]*StoreExtensionResponse, error) {
 	extensions, err := s.GetExtensionsWithStatus()
 	if err != nil {
 		return nil, err
@@ -480,7 +485,7 @@ func (s *ExtensionStore) SearchExtensions(query string, category string) ([]Stor
 		return extensions, nil
 	}
 
-	var result []StoreExtensionResponse
+	result := make([]*StoreExtensionResponse, 0, len(extensions))
 	queryLower := toLower(query)
 
 	for _, ext := range extensions {
@@ -493,7 +498,6 @@ func (s *ExtensionStore) SearchExtensions(query string, category string) ([]Stor
 				!containsIgnoreCase(ext.DisplayName, queryLower) &&
 				!containsIgnoreCase(ext.Description, queryLower) &&
 				!containsIgnoreCase(ext.Author, queryLower) {
-				// Check tags
 				found := false
 				for _, tag := range ext.Tags {
 					if containsIgnoreCase(tag, queryLower) {

go_backend/go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/refraction-networking/utls v1.8.2
 	golang.org/x/mobile v0.0.0-20260211191516-dcd2a3258864
 	golang.org/x/net v0.50.0
+	golang.org/x/text v0.34.0
 )
 
 require (
@@ -24,6 +25,5 @@ require (
 	golang.org/x/mod v0.33.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.41.0 // indirect
-	golang.org/x/text v0.34.0 // indirect
 	golang.org/x/tools v0.42.0 // indirect
 )

go_backend/go.sum

@@ -6,8 +6,6 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dlclark/regexp2 v1.11.4 h1:rPYF9/LECdNymJufQKmri9gV604RvvABwgOA8un7yAo=
 github.com/dlclark/regexp2 v1.11.4/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
-github.com/dop251/goja v0.0.0-20260106131823-651366fbe6e3 h1:bVp3yUzvSAJzu9GqID+Z96P+eu5TKnIMJSV4QaZMauM=
-github.com/dop251/goja v0.0.0-20260106131823-651366fbe6e3/go.mod h1:MxLav0peU43GgvwVgNbLAj1s/bSGboKkhuULvq/7hx4=
 github.com/dop251/goja v0.0.0-20260216154549-8b74ce4618c5 h1:QckvTXtu55YMopmVeDrPQ/r+T6xjw8KMCmE3UgUldkw=
 github.com/dop251/goja v0.0.0-20260216154549-8b74ce4618c5/go.mod h1:MxLav0peU43GgvwVgNbLAj1s/bSGboKkhuULvq/7hx4=
 github.com/go-flac/flacpicture/v2 v2.0.2 h1:HCaJIVZpxnpdWs6G3ECEVRelzqS5xOi1Ba1AGmtXbzE=
@@ -30,36 +28,20 @@ github.com/refraction-networking/utls v1.8.2 h1:j4Q1gJj0xngdeH+Ox/qND11aEfhpgoEv
 github.com/refraction-networking/utls v1.8.2/go.mod h1:jkSOEkLqn+S/jtpEHPOsVv/4V4EVnelwbMQl4vCWXAM=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
-golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
 golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
 golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
-golang.org/x/mobile v0.0.0-20260204172633-1dceadbbeea3 h1:NiJtT7g4ncNFVjVZMAYNBrPSNhIjFYPj8UKA8MEw2A4=
-golang.org/x/mobile v0.0.0-20260204172633-1dceadbbeea3/go.mod h1:wReH3Q1agKmmLapipWFnd4NSs8KPz3fK6mSEZjXLkrg=
-golang.org/x/mobile v0.0.0-20260209203831-923679eb55af h1:VqXrZNyqFISxo0rNDFZQlRDRIp7RXSJDeh/LbrK+W1k=
-golang.org/x/mobile v0.0.0-20260209203831-923679eb55af/go.mod h1:tbwefIr7RlQD1OpZ0KEZ9nux/uiihAOGdafgZfJkmII=
 golang.org/x/mobile v0.0.0-20260211191516-dcd2a3258864 h1:cTVynMSsMYgbUrtia2HB1jrhdUwQNtQti91vUCyjMp4=
 golang.org/x/mobile v0.0.0-20260211191516-dcd2a3258864/go.mod h1:4OGHIUSBiIqyFAQDaX1tpY0BVnO20DvNDeATBu8aeFQ=
-golang.org/x/mod v0.32.0 h1:9F4d3PHLljb6x//jOyokMv3eX+YDeepZSEo3mFJy93c=
-golang.org/x/mod v0.32.0/go.mod h1:SgipZ/3h2Ci89DlEtEXWUk/HteuRin+HHhN+WbNhguU=
 golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
 golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
 golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
 golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
-golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
-golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
 golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
 golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
 golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
-golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
-golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
 golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
 golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=

go_backend/httputil.go

@@ -300,14 +300,11 @@ func DoRequestWithRetry(client *http.Client, req *http.Request, config RetryConf
 			continue
 		}
 
-		// Check for ISP blocking via HTTP status codes
-		// Some ISPs return 403 or 451 when blocking content
 		if resp.StatusCode == 403 || resp.StatusCode == 451 {
 			body, _ := io.ReadAll(resp.Body)
 			resp.Body.Close()
 			bodyStr := strings.ToLower(string(body))
 
-			// Check if response looks like ISP blocking page
 			ispBlockingIndicators := []string{
 				"blocked", "forbidden", "access denied", "not available in your",
 				"restricted", "censored", "unavailable for legal", "blocked by",
@@ -518,7 +515,6 @@ func IsISPBlocking(err error, requestURL string) *ISPBlockingError {
 	return nil
 }
 
-// Returns true if ISP blocking was detected
 func CheckAndLogISPBlocking(err error, requestURL string, tag string) bool {
 	ispErr := IsISPBlocking(err, requestURL)
 	if ispErr != nil {
@@ -553,7 +549,6 @@ func extractDomain(rawURL string) string {
 	return "unknown"
 }
 
-// If ISP blocking is detected, returns a more descriptive error
 func WrapErrorWithISPCheck(err error, requestURL string, tag string) error {
 	if err == nil {
 		return nil

go_backend/httputil_utls.go

@@ -112,7 +112,6 @@ func DoRequestWithCloudflareBypass(req *http.Request) (*http.Response, error) {
 
 	resp, err := sharedClient.Do(req)
 	if err == nil {
-		// Check for Cloudflare challenge page (403 with specific markers)
 		if resp.StatusCode == 403 || resp.StatusCode == 503 {
 			body, readErr := io.ReadAll(resp.Body)
 			resp.Body.Close()
@@ -154,7 +153,6 @@ func DoRequestWithCloudflareBypass(req *http.Request) (*http.Response, error) {
 		return resp, nil
 	}
 
-	// Check if error might be TLS-related (Cloudflare blocking)
 	errStr := strings.ToLower(err.Error())
 	tlsRelated := strings.Contains(errStr, "tls") ||
 		strings.Contains(errStr, "handshake") ||

go_backend/library_scan.go

@@ -234,8 +234,6 @@ func ScanLibraryFolder(folderPath string) (string, error) {
 			continue
 		}
 
-		// Skip audio files that are referenced by a .cue sheet
-		// (they will be represented by the cue sheet's track entries instead)
 		if cueReferencedAudioFiles[filePath] {
 			GoLog("[LibraryScan] Skipping %s (referenced by .cue sheet)\n", filepath.Base(filePath))
 			continue
@@ -557,9 +555,6 @@ func ReadAudioMetadataWithDisplayName(filePath, displayNameHint string) (string,
 	return string(jsonBytes), nil
 }
 
-// ScanLibraryFolderIncremental performs an incremental scan of the library folder
-// existingFilesJSON is a JSON object mapping filePath -> modTime (unix millis)
-// Only files that are new or have changed modification time will be scanned
 func loadExistingFilesSnapshot(snapshotPath string) (map[string]int64, error) {
 	existingFiles := make(map[string]int64)
 	if snapshotPath == "" {
@@ -637,7 +632,6 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 	libraryScanProgress.TotalFiles = totalFiles
 	libraryScanProgressMu.Unlock()
 
-	// Find files to scan (new or modified)
 	var filesToScan []libraryAudioFileInfo
 	skippedCount := 0
 	existingCueTrackModTimes := make(map[string]int64)
@@ -653,10 +647,8 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 	for _, f := range currentFiles {
 		existingModTime, exists := existingFiles[f.path]
 		if !exists {
-			// For .cue files, also check if any virtual path entries exist
 			if strings.ToLower(filepath.Ext(f.path)) == ".cue" {
 				if cueTrackModTime, hasCueTracks := existingCueTrackModTimes[f.path]; hasCueTracks {
-					// CUE file exists in DB via virtual paths; check if modTime changed
 					if f.modTime == cueTrackModTime {
 						skippedCount++
 					} else {
@@ -675,14 +667,11 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 
 	var deletedPaths []string
 	for existingPath := range existingFiles {
-		// For CUE virtual paths (e.g. "/path/album.cue#track01"),
-		// check if the base .cue file still exists on disk
 		if idx := strings.LastIndex(existingPath, "#track"); idx > 0 {
 			baseCuePath := existingPath[:idx]
 			if currentPathSet[baseCuePath] {
-				continue // Base .cue file still exists, not deleted
+				continue
 			}
-			// Base CUE file is gone, mark virtual path as deleted
 			deletedPaths = append(deletedPaths, existingPath)
 		} else if !currentPathSet[existingPath] {
 			deletedPaths = append(deletedPaths, existingPath)
@@ -713,7 +702,6 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 	scanTime := time.Now().UTC().Format(time.RFC3339)
 	errorCount := 0
 
-	// Track audio files referenced by .cue sheets to avoid duplicates (incremental)
 	cueReferencedAudioFilesInc := make(map[string]bool)
 	parsedCueFiles := make(map[string]scannedCueFileInfo)
 	for _, f := range filesToScan {
@@ -748,7 +736,6 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 
 		ext := strings.ToLower(filepath.Ext(f.path))
 
-		// Handle .cue files: produce multiple track results
 		if ext == ".cue" {
 			var cueResults []LibraryScanResult
 			cueInfo, ok := parsedCueFiles[f.path]
@@ -773,7 +760,6 @@ func scanLibraryFolderIncrementalWithExistingFiles(folderPath string, existingFi
 			continue
 		}
 
-		// Skip audio files referenced by .cue sheets
 		if cueReferencedAudioFilesInc[f.path] {
 			continue
 		}

go_backend/lyrics.go

@@ -83,7 +83,6 @@ func SetLyricsProviderOrder(providers []string) {
 		return
 	}
 
-	// Validate provider names
 	validNames := map[string]bool{
 		LyricsProviderSpotifyAPI: true,
 		LyricsProviderLRCLIB:     true,
@@ -105,7 +104,6 @@ func SetLyricsProviderOrder(providers []string) {
 	GoLog("[Lyrics] Provider order set to: %v\n", valid)
 }
 
-// GetLyricsProviderOrder returns the current lyrics provider order.
 func GetLyricsProviderOrder() []string {
 	lyricsProvidersMu.RLock()
 	defer lyricsProvidersMu.RUnlock()
@@ -119,7 +117,6 @@ func GetLyricsProviderOrder() []string {
 	return result
 }
 
-// GetAvailableLyricsProviders returns metadata about all available providers.
 func GetAvailableLyricsProviders() []map[string]interface{} {
 	return []map[string]interface{}{
 		{"id": LyricsProviderSpotifyAPI, "name": "Spotify Lyrics API", "has_proxy_dependency": true, "description": "Spotify-sourced lyrics via Paxsenix"},
@@ -140,7 +137,6 @@ func normalizeLyricsFetchOptions(opts LyricsFetchOptions) LyricsFetchOptions {
 	return opts
 }
 
-// SetLyricsFetchOptions sets provider-specific lyric fetch behavior.
 func SetLyricsFetchOptions(opts LyricsFetchOptions) {
 	normalized := normalizeLyricsFetchOptions(opts)
 
@@ -156,7 +152,6 @@ func SetLyricsFetchOptions(opts LyricsFetchOptions) {
 	)
 }
 
-// GetLyricsFetchOptions returns current provider-specific lyric fetch behavior.
 func GetLyricsFetchOptions() LyricsFetchOptions {
 	lyricsFetchOptionsMu.RLock()
 	defer lyricsFetchOptionsMu.RUnlock()
@@ -667,7 +662,6 @@ func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName st
 
 	GoLog("[Lyrics] Searching for: %s - %s (providers: %v)\n", artistName, trackName, providerOrder)
 
-	// Cascade through all configured built-in providers
 	for _, providerName := range providerOrder {
 		GoLog("[Lyrics] Trying provider: %s\n", providerName)
 

go_backend/qobuz.go

@@ -262,26 +262,35 @@ func qobuzTrackDisplayTitle(track *QobuzTrack) string {
 	return fmt.Sprintf("%s (%s)", title, version)
 }
 
+var qobuzImageSizeRe = regexp.MustCompile(`_\d+\.jpg$`)
+
+func qobuzUpscaleImageURL(url string) string {
+	if url == "" {
+		return ""
+	}
+	return qobuzImageSizeRe.ReplaceAllString(url, "_max.jpg")
+}
+
 func qobuzTrackAlbumImage(track *QobuzTrack) string {
 	if track == nil {
 		return ""
 	}
-	return qobuzFirstNonEmpty(
+	return qobuzUpscaleImageURL(qobuzFirstNonEmpty(
 		track.Album.Image.Large,
 		track.Album.Image.Small,
 		track.Album.Image.Thumbnail,
-	)
+	))
 }
 
 func qobuzAlbumImage(album *qobuzAlbumDetails) string {
 	if album == nil {
 		return ""
 	}
-	return qobuzFirstNonEmpty(
+	return qobuzUpscaleImageURL(qobuzFirstNonEmpty(
 		album.Image.Large,
 		album.Image.Small,
 		album.Image.Thumbnail,
-	)
+	))
 }
 
 func qobuzTrackArtistID(track *QobuzTrack) string {
@@ -936,7 +945,17 @@ func (q *QobuzDownloader) GetAlbumMetadata(resourceID string) (*AlbumResponsePay
 
 	tracks := make([]AlbumTrackMetadata, 0, len(album.Tracks.Items))
 	for i := range album.Tracks.Items {
-		tracks = append(tracks, qobuzTrackToAlbumTrackMetadata(&album.Tracks.Items[i]))
+		track := &album.Tracks.Items[i]
+		track.Album.ID = album.ID
+		track.Album.Title = album.Title
+		track.Album.ReleaseDate = album.ReleaseDateOriginal
+		track.Album.Image = qobuzImageSet{
+			Thumbnail: album.Image.Thumbnail,
+			Small:     album.Image.Small,
+			Large:     album.Image.Large,
+		}
+		track.Album.TracksCount = album.TracksCount
+		tracks = append(tracks, qobuzTrackToAlbumTrackMetadata(track))
 	}
 
 	return &AlbumResponsePayload{

go_backend/tidal.go

@@ -1015,13 +1015,11 @@ func (t *TidalDownloader) GetAlbumMetadata(resourceID string) (*AlbumResponsePay
 	tracks := make([]AlbumTrackMetadata, 0, len(itemsModule.PagedList.Items))
 	for _, item := range itemsModule.PagedList.Items {
 		track := item.Item
-		if track.Album.ID == 0 {
-			track.Album.ID = headerModule.Album.ID
-			track.Album.Title = headerModule.Album.Title
-			track.Album.Cover = headerModule.Album.Cover
-			track.Album.ReleaseDate = headerModule.Album.ReleaseDate
-			track.Album.URL = headerModule.Album.URL
-		}
+		track.Album.ID = headerModule.Album.ID
+		track.Album.Title = headerModule.Album.Title
+		track.Album.Cover = headerModule.Album.Cover
+		track.Album.ReleaseDate = headerModule.Album.ReleaseDate
+		track.Album.URL = headerModule.Album.URL
 		tracks = append(tracks, tidalTrackToAlbumTrackMetadata(&track))
 	}
 

go_backend/title_match_utils.go

@@ -24,11 +24,9 @@ func normalizeLooseTitle(title string) string {
 			b.WriteRune(r)
 		case unicode.IsSpace(r):
 			b.WriteByte(' ')
-		// Treat common separators as spaces.
 		case r == '/', r == '\\', r == '_', r == '-', r == '|', r == '.', r == '&', r == '+':
 			b.WriteByte(' ')
 		default:
-			// Drop other punctuation/symbols (including emoji) for loose matching.
 		}
 	}
 
@@ -59,7 +57,6 @@ func normalizeLooseArtistName(name string) string {
 		case r == '/', r == '\\', r == '_', r == '-', r == '|', r == '.', r == '&', r == '+':
 			b.WriteByte(' ')
 		default:
-			// Drop remaining punctuation/symbols for loose artist matching.
 		}
 	}
 
@@ -102,13 +99,11 @@ func normalizeSymbolOnlyTitle(title string) string {
 	return b.String()
 }
 
-// ==================== Shared Track Verification ====================
-
 // resolvedTrackInfo holds the metadata fetched from a provider for verification.
 type resolvedTrackInfo struct {
 	Title      string
 	ArtistName string
-	Duration   int // seconds
+	Duration   int
 }
 
 // trackMatchesRequest checks whether a resolved track from a provider matches

go_backend/youtube.go

@@ -1,750 +0,0 @@
-package gobackend
-
-import (
-	"bufio"
-	"context"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"net/url"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-type YouTubeDownloader struct {
-	client *http.Client
-	apiURL string
-	mu     sync.Mutex
-}
-
-const spotubeBaseURL = "https://spotubedl.com"
-
-var (
-	globalYouTubeDownloader *YouTubeDownloader
-	youtubeDownloaderOnce   sync.Once
-)
-
-type YouTubeQuality string
-
-const (
-	YouTubeQualityOpus320 YouTubeQuality = "opus_320"
-	YouTubeQualityOpus256 YouTubeQuality = "opus_256"
-	YouTubeQualityOpus128 YouTubeQuality = "opus_128"
-	YouTubeQualityMP3128  YouTubeQuality = "mp3_128"
-	YouTubeQualityMP3256  YouTubeQuality = "mp3_256"
-	YouTubeQualityMP3320  YouTubeQuality = "mp3_320"
-)
-
-var (
-	youtubeOpusSupportedBitrates = []int{128, 256, 320}
-	youtubeMp3SupportedBitrates  = []int{128, 256, 320}
-)
-
-type CobaltRequest struct {
-	URL             string `json:"url"`
-	AudioBitrate    string `json:"audioBitrate,omitempty"`
-	AudioFormat     string `json:"audioFormat,omitempty"`
-	DownloadMode    string `json:"downloadMode,omitempty"`
-	FilenameStyle   string `json:"filenameStyle,omitempty"`
-	DisableMetadata bool   `json:"disableMetadata,omitempty"`
-}
-
-type CobaltResponse struct {
-	Status   string `json:"status"`
-	URL      string `json:"url,omitempty"`
-	Filename string `json:"filename,omitempty"`
-	Error    *struct {
-		Code    string `json:"code"`
-		Context *struct {
-			Service string `json:"service,omitempty"`
-			Limit   int    `json:"limit,omitempty"`
-		} `json:"context,omitempty"`
-	} `json:"error,omitempty"`
-}
-
-type YouTubeDownloadResult struct {
-	FilePath    string
-	Title       string
-	Artist      string
-	Album       string
-	ReleaseDate string
-	TrackNumber int
-	DiscNumber  int
-	ISRC        string
-	Format      string // "opus" or "mp3"
-	Bitrate     int
-	LyricsLRC   string
-	CoverData   []byte
-}
-
-func NewYouTubeDownloader() *YouTubeDownloader {
-	youtubeDownloaderOnce.Do(func() {
-		globalYouTubeDownloader = &YouTubeDownloader{
-			client: NewHTTPClientWithTimeout(DownloadTimeout),
-			apiURL: "https://api.qwkuns.me",
-		}
-	})
-	return globalYouTubeDownloader
-}
-
-func extractBitrateFromQuality(raw string, defaultBitrate int) int {
-	parts := strings.FieldsFunc(raw, func(r rune) bool {
-		return (r < '0' || r > '9')
-	})
-	for i := len(parts) - 1; i >= 0; i-- {
-		part := parts[i]
-		if part == "" {
-			continue
-		}
-		if parsed, err := strconv.Atoi(part); err == nil {
-			return parsed
-		}
-	}
-	return defaultBitrate
-}
-
-func nearestSupportedBitrate(value int, supported []int) int {
-	nearest := supported[0]
-	nearestDistance := absInt(value - nearest)
-
-	for _, option := range supported[1:] {
-		distance := absInt(value - option)
-		// On tie prefer higher quality.
-		if distance < nearestDistance || (distance == nearestDistance && option > nearest) {
-			nearest = option
-			nearestDistance = distance
-		}
-	}
-
-	return nearest
-}
-
-func absInt(value int) int {
-	if value < 0 {
-		return -value
-	}
-	return value
-}
-
-func parseYouTubeQualityInput(raw string) (format string, bitrate int, normalized YouTubeQuality) {
-	normalizedRaw := strings.ToLower(strings.TrimSpace(raw))
-
-	if strings.HasPrefix(normalizedRaw, "opus") {
-		parsed := extractBitrateFromQuality(normalizedRaw, 256)
-		finalBitrate := nearestSupportedBitrate(parsed, youtubeOpusSupportedBitrates)
-		return "opus", finalBitrate, YouTubeQuality(fmt.Sprintf("opus_%d", finalBitrate))
-	}
-
-	if strings.HasPrefix(normalizedRaw, "mp3") {
-		parsed := extractBitrateFromQuality(normalizedRaw, 320)
-		finalBitrate := nearestSupportedBitrate(parsed, youtubeMp3SupportedBitrates)
-		return "mp3", finalBitrate, YouTubeQuality(fmt.Sprintf("mp3_%d", finalBitrate))
-	}
-
-	// Backward compatibility for legacy symbolic values.
-	switch normalizedRaw {
-	case "opus_256", "opus256", "opus":
-		return "opus", 256, YouTubeQualityOpus256
-	case "opus_320", "opus320":
-		return "opus", 320, YouTubeQualityOpus320
-	case "opus_128", "opus128":
-		return "opus", 128, YouTubeQualityOpus128
-	case "mp3_320", "mp3320", "mp3", "":
-		return "mp3", 320, YouTubeQualityMP3320
-	case "mp3_256", "mp3256":
-		return "mp3", 256, YouTubeQualityMP3256
-	case "mp3_128", "mp3128":
-		return "mp3", 128, YouTubeQualityMP3128
-	default:
-		return "mp3", 320, YouTubeQualityMP3320
-	}
-}
-
-func (y *YouTubeDownloader) SearchYouTube(trackName, artistName string) (string, error) {
-	query := fmt.Sprintf("%s %s", artistName, trackName)
-	searchQuery := url.QueryEscape(query)
-
-	GoLog("[YouTube] Search query: %s\n", query)
-
-	youtubeMusicURL := fmt.Sprintf("https://music.youtube.com/search?q=%s", searchQuery)
-
-	return youtubeMusicURL, nil
-}
-
-func (y *YouTubeDownloader) GetDownloadURL(youtubeURL string, quality YouTubeQuality) (*CobaltResponse, error) {
-	y.mu.Lock()
-	defer y.mu.Unlock()
-
-	audioFormat, bitrate, _ := parseYouTubeQualityInput(string(quality))
-	audioBitrate := strconv.Itoa(bitrate)
-
-	// Try SpotubeDL first (primary)
-	var spotubeErr error
-	videoID, extractErr := ExtractYouTubeVideoID(youtubeURL)
-	if extractErr == nil {
-		GoLog("[YouTube] Requesting from SpotubeDL: videoID=%s (format: %s, bitrate: %s)\n",
-			videoID, audioFormat, audioBitrate)
-
-		resp, err := y.requestSpotubeDL(videoID, audioFormat, audioBitrate)
-		if err == nil {
-			return resp, nil
-		}
-		spotubeErr = err
-		GoLog("[YouTube] SpotubeDL failed: %v, trying Cobalt fallback...\n", err)
-	} else {
-		GoLog("[YouTube] Could not extract video ID: %v, skipping SpotubeDL\n", extractErr)
-	}
-
-	// Fallback: direct Cobalt API (api.qwkuns.me)
-	cobaltURL := toYouTubeMusicURL(youtubeURL)
-	GoLog("[YouTube] Requesting from Cobalt API: %s (format: %s, bitrate: %s)\n",
-		cobaltURL, audioFormat, audioBitrate)
-
-	resp, err := y.requestCobaltDirect(cobaltURL, audioFormat, audioBitrate)
-	if err != nil {
-		if spotubeErr != nil {
-			return nil, fmt.Errorf("all download methods failed: spotubedl: %v, cobalt: %v", spotubeErr, err)
-		}
-		return nil, fmt.Errorf("all download methods failed: spotubedl: extractErr=%v, cobalt: %v", extractErr, err)
-	}
-
-	return resp, nil
-}
-
-func (y *YouTubeDownloader) requestCobaltDirect(videoURL, audioFormat, audioBitrate string) (*CobaltResponse, error) {
-	reqBody := CobaltRequest{
-		URL:             videoURL,
-		AudioFormat:     audioFormat,
-		AudioBitrate:    audioBitrate,
-		DownloadMode:    "audio",
-		FilenameStyle:   "basic",
-		DisableMetadata: true,
-	}
-
-	jsonData, err := json.Marshal(reqBody)
-	if err != nil {
-		return nil, fmt.Errorf("failed to marshal request: %w", err)
-	}
-
-	req, err := http.NewRequest("POST", y.apiURL, strings.NewReader(string(jsonData)))
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("Accept", "application/json")
-
-	resp, err := DoRequestWithUserAgent(y.client, req)
-	if err != nil {
-		return nil, fmt.Errorf("cobalt API request failed: %w", err)
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, fmt.Errorf("failed to read response: %w", err)
-	}
-
-	GoLog("[YouTube] Cobalt API response status: %d\n", resp.StatusCode)
-
-	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("cobalt API returned status %d: %s", resp.StatusCode, string(body))
-	}
-
-	var cobaltResp CobaltResponse
-	if err := json.Unmarshal(body, &cobaltResp); err != nil {
-		return nil, fmt.Errorf("failed to parse response: %w", err)
-	}
-
-	if cobaltResp.Status == "error" && cobaltResp.Error != nil {
-		return nil, fmt.Errorf("cobalt error: %s", cobaltResp.Error.Code)
-	}
-
-	if cobaltResp.Status != "tunnel" && cobaltResp.Status != "redirect" {
-		return nil, fmt.Errorf("unexpected cobalt status: %s", cobaltResp.Status)
-	}
-
-	if cobaltResp.URL == "" {
-		return nil, fmt.Errorf("no download URL in response")
-	}
-
-	GoLog("[YouTube] Got download URL from Cobalt (status: %s)\n", cobaltResp.Status)
-	return &cobaltResp, nil
-}
-
-// requestSpotubeDL uses SpotubeDL as a Cobalt proxy (they handle auth to yt-dl.click instances).
-// Engines v3/v2 are MP3-oriented outputs, so we only use them for MP3 requests.
-func (y *YouTubeDownloader) requestSpotubeDL(videoID, audioFormat, audioBitrate string) (*CobaltResponse, error) {
-	engines := []string{"v1"}
-	if strings.EqualFold(audioFormat, "mp3") {
-		engines = append(engines, "v3", "v2")
-	}
-	var lastErr error
-
-	for _, engine := range engines {
-		resp, err := y.requestSpotubeDLEngine(videoID, audioFormat, audioBitrate, engine)
-		if err == nil {
-			return resp, nil
-		}
-		lastErr = err
-		GoLog("[YouTube] SpotubeDL (%s) failed: %v\n", engine, err)
-	}
-
-	if lastErr == nil {
-		lastErr = fmt.Errorf("no SpotubeDL engine available")
-	}
-	return nil, lastErr
-}
-
-func (y *YouTubeDownloader) requestSpotubeDLEngine(videoID, audioFormat, audioBitrate, engine string) (*CobaltResponse, error) {
-	apiURL := fmt.Sprintf("%s/api/download/%s?engine=%s&format=%s&quality=%s",
-		spotubeBaseURL, videoID, url.QueryEscape(engine), url.QueryEscape(audioFormat), url.QueryEscape(audioBitrate))
-
-	GoLog("[YouTube] Requesting from SpotubeDL (%s): %s\n", engine, apiURL)
-
-	req, err := http.NewRequest("GET", apiURL, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	req.Header.Set("Accept", "application/json")
-
-	resp, err := DoRequestWithUserAgent(y.client, req)
-	if err != nil {
-		return nil, fmt.Errorf("spotubedl request failed: %w", err)
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, fmt.Errorf("failed to read response: %w", err)
-	}
-
-	GoLog("[YouTube] SpotubeDL (%s) response status: %d\n", engine, resp.StatusCode)
-
-	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("spotubedl(%s) returned status %d: %s", engine, resp.StatusCode, string(body))
-	}
-
-	var result struct {
-		URL      string `json:"url"`
-		Status   string `json:"status"`
-		Error    string `json:"error"`
-		Message  string `json:"message"`
-		Filename string `json:"filename"`
-	}
-	if err := json.Unmarshal(body, &result); err != nil {
-		return nil, fmt.Errorf("failed to parse spotubedl response: %w", err)
-	}
-
-	downloadURL := strings.TrimSpace(result.URL)
-	if downloadURL == "" {
-		if result.Error != "" {
-			return nil, fmt.Errorf("spotubedl(%s) error: %s", engine, result.Error)
-		}
-		if result.Message != "" {
-			return nil, fmt.Errorf("spotubedl(%s) message: %s", engine, result.Message)
-		}
-		return nil, fmt.Errorf("no download URL from spotubedl(%s)", engine)
-	}
-
-	if strings.HasPrefix(downloadURL, "/") {
-		downloadURL = spotubeBaseURL + downloadURL
-	}
-
-	if !strings.HasPrefix(downloadURL, "http://") && !strings.HasPrefix(downloadURL, "https://") {
-		return nil, fmt.Errorf("invalid download URL from spotubedl(%s): %s", engine, downloadURL)
-	}
-
-	filename := strings.TrimSpace(result.Filename)
-	if filename == "" {
-		if parsedURL, parseErr := url.Parse(downloadURL); parseErr == nil {
-			if queryFilename := strings.TrimSpace(parsedURL.Query().Get("filename")); queryFilename != "" {
-				if decodedFilename, decodeErr := url.QueryUnescape(queryFilename); decodeErr == nil {
-					filename = decodedFilename
-				} else {
-					filename = queryFilename
-				}
-			}
-		}
-	}
-
-	GoLog("[YouTube] Got download URL from SpotubeDL (%s)\n", engine)
-	return &CobaltResponse{
-		Status:   "tunnel",
-		URL:      downloadURL,
-		Filename: filename,
-	}, nil
-}
-
-func (y *YouTubeDownloader) DownloadFile(downloadURL, outputPath string, outputFD int, itemID string) error {
-	ctx := context.Background()
-
-	if itemID != "" {
-		StartItemProgress(itemID)
-		defer CompleteItemProgress(itemID)
-		ctx = initDownloadCancel(itemID)
-		defer clearDownloadCancel(itemID)
-	}
-
-	if isDownloadCancelled(itemID) {
-		return ErrDownloadCancelled
-	}
-
-	req, err := http.NewRequestWithContext(ctx, "GET", downloadURL, nil)
-	if err != nil {
-		return fmt.Errorf("failed to create request: %w", err)
-	}
-
-	resp, err := DoRequestWithUserAgent(y.client, req)
-	if err != nil {
-		if isDownloadCancelled(itemID) {
-			return ErrDownloadCancelled
-		}
-		return fmt.Errorf("download request failed: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != 200 {
-		return fmt.Errorf("download failed: HTTP %d", resp.StatusCode)
-	}
-
-	expectedSize := resp.ContentLength
-	if expectedSize > 0 && itemID != "" {
-		SetItemBytesTotal(itemID, expectedSize)
-	}
-
-	out, err := openOutputForWrite(outputPath, outputFD)
-	if err != nil {
-		return fmt.Errorf("failed to create output file: %w", err)
-	}
-
-	bufWriter := bufio.NewWriterSize(out, 256*1024)
-
-	var written int64
-	if itemID != "" {
-		progressWriter := NewItemProgressWriter(bufWriter, itemID)
-		written, err = io.Copy(progressWriter, resp.Body)
-	} else {
-		written, err = io.Copy(bufWriter, resp.Body)
-	}
-
-	flushErr := bufWriter.Flush()
-	closeErr := out.Close()
-
-	if err != nil {
-		cleanupOutputOnError(outputPath, outputFD)
-		if isDownloadCancelled(itemID) {
-			return ErrDownloadCancelled
-		}
-		return fmt.Errorf("download interrupted: %w", err)
-	}
-	if flushErr != nil {
-		cleanupOutputOnError(outputPath, outputFD)
-		return fmt.Errorf("failed to flush buffer: %w", flushErr)
-	}
-	if closeErr != nil {
-		cleanupOutputOnError(outputPath, outputFD)
-		return fmt.Errorf("failed to close file: %w", closeErr)
-	}
-
-	if expectedSize > 0 && written != expectedSize {
-		cleanupOutputOnError(outputPath, outputFD)
-		return fmt.Errorf("incomplete download: expected %d bytes, got %d bytes", expectedSize, written)
-	}
-
-	GoLog("[YouTube] Download completed: %d bytes written\n", written)
-
-	return nil
-}
-
-func BuildYouTubeSearchURL(trackName, artistName string) string {
-	query := fmt.Sprintf("%s %s official audio", artistName, trackName)
-	return fmt.Sprintf("https://music.youtube.com/search?q=%s", url.QueryEscape(query))
-}
-
-func BuildYouTubeWatchURL(videoID string) string {
-	return fmt.Sprintf("https://music.youtube.com/watch?v=%s", videoID)
-}
-
-func isYouTubeVideoID(s string) bool {
-	if len(s) != 11 {
-		return false
-	}
-	for _, c := range s {
-		if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '-' || c == '_') {
-			return false
-		}
-	}
-	return true
-}
-
-func IsYouTubeURL(urlStr string) bool {
-	lower := strings.ToLower(urlStr)
-	return strings.Contains(lower, "youtube.com") ||
-		strings.Contains(lower, "youtu.be") ||
-		strings.Contains(lower, "music.youtube.com")
-}
-
-// toYouTubeMusicURL converts any YouTube URL to music.youtube.com format.
-// YouTube Music URLs bypass the login requirement that affects regular YouTube videos on Cobalt.
-func toYouTubeMusicURL(rawURL string) string {
-	videoID, err := ExtractYouTubeVideoID(rawURL)
-	if err != nil {
-		return rawURL
-	}
-	return fmt.Sprintf("https://music.youtube.com/watch?v=%s", videoID)
-}
-
-func ExtractYouTubeVideoID(urlStr string) (string, error) {
-	if strings.Contains(urlStr, "youtu.be/") {
-		parts := strings.Split(urlStr, "youtu.be/")
-		if len(parts) >= 2 {
-			videoID := strings.Split(parts[1], "?")[0]
-			videoID = strings.Split(videoID, "&")[0]
-			return strings.TrimSpace(videoID), nil
-		}
-	}
-
-	parsed, err := url.Parse(urlStr)
-	if err != nil {
-		return "", fmt.Errorf("invalid URL: %w", err)
-	}
-
-	if v := parsed.Query().Get("v"); v != "" {
-		return v, nil
-	}
-
-	if strings.Contains(parsed.Path, "/embed/") {
-		parts := strings.Split(parsed.Path, "/embed/")
-		if len(parts) >= 2 {
-			return strings.Split(parts[1], "/")[0], nil
-		}
-	}
-
-	if strings.Contains(parsed.Path, "/v/") {
-		parts := strings.Split(parsed.Path, "/v/")
-		if len(parts) >= 2 {
-			return strings.Split(parts[1], "/")[0], nil
-		}
-	}
-
-	return "", fmt.Errorf("could not extract video ID from URL")
-}
-
-// searchYouTubeMusicViaExtension uses the YT Music extension's customSearch
-// to find a track by artist + title. It filters for tracks only (not videos,
-// albums, or playlists) and returns the YouTube Music watch URL for the first
-// matching track, or "" if nothing was found.
-func searchYouTubeMusicViaExtension(artistName, trackName string) string {
-	extManager := GetExtensionManager()
-	searchProviders := extManager.GetSearchProviders()
-
-	// Find the ytmusic-spotiflac extension
-	var ytProvider *ExtensionProviderWrapper
-	for _, p := range searchProviders {
-		if p.extension.ID == "ytmusic-spotiflac" {
-			ytProvider = p
-			break
-		}
-	}
-	if ytProvider == nil {
-		GoLog("[YouTube] YT Music extension not found or not enabled, skipping fallback\n")
-		return ""
-	}
-
-	query := strings.TrimSpace(artistName + " " + trackName)
-	if query == "" {
-		return ""
-	}
-
-	GoLog("[YouTube] Searching YT Music extension for: %s\n", query)
-	results, err := ytProvider.CustomSearch(query, map[string]interface{}{
-		"filter": "tracks",
-	})
-	if err != nil {
-		GoLog("[YouTube] YT Music extension search failed: %v\n", err)
-		return ""
-	}
-
-	// Find the first track result (item_type == "track" with a valid video ID)
-	for _, track := range results {
-		if track.ItemType != "" && track.ItemType != "track" {
-			continue
-		}
-		videoID := strings.TrimSpace(track.ID)
-		if videoID == "" {
-			continue
-		}
-		if isYouTubeVideoID(videoID) {
-			return BuildYouTubeWatchURL(videoID)
-		}
-	}
-
-	GoLog("[YouTube] YT Music extension returned no matching tracks for: %s\n", query)
-	return ""
-}
-
-func downloadFromYouTube(req DownloadRequest) (YouTubeDownloadResult, error) {
-	downloader := NewYouTubeDownloader()
-
-	format, bitrate, quality := parseYouTubeQualityInput(req.Quality)
-
-	// URL lookup priority: YouTube video ID > YT Music extension > SongLink (Spotify/Deezer/ISRC)
-	var youtubeURL string
-	var lookupErr error
-
-	// SpotifyID might actually be a YouTube video ID (from YT Music extension)
-	if req.SpotifyID != "" && isYouTubeVideoID(req.SpotifyID) {
-		youtubeURL = BuildYouTubeWatchURL(req.SpotifyID)
-		GoLog("[YouTube] SpotifyID appears to be YouTube video ID, using directly: %s\n", youtubeURL)
-	}
-
-	// Try YT Music extension search first (if installed) - more accurate, tracks only
-	if youtubeURL == "" && (req.TrackName != "" || req.ArtistName != "") {
-		youtubeURL = searchYouTubeMusicViaExtension(req.ArtistName, req.TrackName)
-		if youtubeURL != "" {
-			GoLog("[YouTube] Found YouTube URL via YT Music extension: %s\n", youtubeURL)
-		}
-	}
-
-	// Fallback: Try Spotify ID via SongLink
-	if youtubeURL == "" && req.SpotifyID != "" && !isYouTubeVideoID(req.SpotifyID) {
-		GoLog("[YouTube] Looking up YouTube URL via SongLink for Spotify ID: %s\n", req.SpotifyID)
-		songlink := NewSongLinkClient()
-		youtubeURL, lookupErr = songlink.GetYouTubeURLFromSpotify(req.SpotifyID)
-		if lookupErr != nil {
-			GoLog("[YouTube] SongLink Spotify lookup failed: %v\n", lookupErr)
-		} else {
-			GoLog("[YouTube] Found YouTube URL via SongLink (Spotify): %s\n", youtubeURL)
-		}
-	}
-
-	// Fallback: Try Deezer ID via SongLink
-	if youtubeURL == "" && req.DeezerID != "" {
-		GoLog("[YouTube] Looking up YouTube URL via SongLink for Deezer ID: %s\n", req.DeezerID)
-		songlink := NewSongLinkClient()
-		youtubeURL, lookupErr = songlink.GetYouTubeURLFromDeezer(req.DeezerID)
-		if lookupErr != nil {
-			GoLog("[YouTube] SongLink Deezer lookup failed: %v\n", lookupErr)
-		} else {
-			GoLog("[YouTube] Found YouTube URL via SongLink (Deezer): %s\n", youtubeURL)
-		}
-	}
-
-	// Fallback: Try ISRC via SongLink
-	if youtubeURL == "" && req.ISRC != "" {
-		GoLog("[YouTube] Looking up YouTube URL via SongLink for ISRC: %s\n", req.ISRC)
-		songlink := NewSongLinkClient()
-		availability, isrcErr := songlink.CheckTrackAvailability("", req.ISRC)
-		if isrcErr == nil && availability.YouTube && availability.YouTubeURL != "" {
-			youtubeURL = availability.YouTubeURL
-			GoLog("[YouTube] Found YouTube URL via SongLink (ISRC): %s\n", youtubeURL)
-		} else if isrcErr != nil {
-			GoLog("[YouTube] SongLink ISRC lookup failed: %v\n", isrcErr)
-		}
-	}
-
-	// Cobalt requires direct video URLs, not search URLs
-	if youtubeURL == "" {
-		return YouTubeDownloadResult{}, fmt.Errorf("could not find YouTube URL for track: %s - %s (no Spotify/Deezer ID available or track not on YouTube)", req.ArtistName, req.TrackName)
-	}
-
-	GoLog("[YouTube] Requesting download from Cobalt for: %s\n", youtubeURL)
-
-	cobaltResp, err := downloader.GetDownloadURL(youtubeURL, quality)
-	if err != nil {
-		return YouTubeDownloadResult{}, fmt.Errorf("failed to get download URL: %w", err)
-	}
-
-	ext := ".mp3"
-	if format == "opus" {
-		ext = ".opus"
-	}
-
-	// Some SpotubeDL engines may return a different output container than requested.
-	// Respect the provider-reported filename to avoid saving MP3 bytes with .opus extension.
-	if cobaltResp != nil && cobaltResp.Filename != "" {
-		lowerName := strings.ToLower(strings.TrimSpace(cobaltResp.Filename))
-		switch {
-		case strings.HasSuffix(lowerName, ".mp3"):
-			ext = ".mp3"
-			format = "mp3"
-		case strings.HasSuffix(lowerName, ".opus"), strings.HasSuffix(lowerName, ".ogg"):
-			ext = ".opus"
-			format = "opus"
-		}
-	}
-
-	filename := buildFilenameFromTemplate(req.FilenameFormat, map[string]any{
-		"title":  req.TrackName,
-		"artist": req.ArtistName,
-		"album":  req.AlbumName,
-		"track":  req.TrackNumber,
-		"year":   extractYear(req.ReleaseDate),
-		"date":   req.ReleaseDate,
-		"disc":   req.DiscNumber,
-	})
-	filename = sanitizeFilename(filename) + ext
-
-	var outputPath string
-	isSafOutput := isFDOutput(req.OutputFD) || strings.TrimSpace(req.OutputPath) != ""
-	if isSafOutput {
-		outputPath = strings.TrimSpace(req.OutputPath)
-		if outputPath == "" && isFDOutput(req.OutputFD) {
-			outputPath = fmt.Sprintf("/proc/self/fd/%d", req.OutputFD)
-		}
-	} else {
-		outputPath = req.OutputDir + "/" + filename
-	}
-
-	GoLog("[YouTube] Downloading to: %s\n", outputPath)
-
-	var parallelResult *ParallelDownloadResult
-	if req.EmbedLyrics || req.CoverURL != "" {
-		GoLog("[YouTube] Starting parallel fetch for cover and lyrics...\n")
-		parallelResult = FetchCoverAndLyricsParallel(
-			req.CoverURL,
-			req.EmbedMaxQualityCover,
-			req.SpotifyID,
-			req.TrackName,
-			req.ArtistName,
-			req.EmbedLyrics,
-			int64(req.DurationMS),
-		)
-	}
-
-	if err := downloader.DownloadFile(cobaltResp.URL, outputPath, req.OutputFD, req.ItemID); err != nil {
-		return YouTubeDownloadResult{}, fmt.Errorf("download failed: %w", err)
-	}
-
-	lyricsLRC := ""
-	var coverData []byte
-	if parallelResult != nil {
-		if parallelResult.LyricsLRC != "" {
-			lyricsLRC = parallelResult.LyricsLRC
-			GoLog("[YouTube] Got lyrics from lrclib (%d lines)\n", len(parallelResult.LyricsData.Lines))
-		}
-		if parallelResult.CoverData != nil {
-			coverData = parallelResult.CoverData
-			GoLog("[YouTube] Got cover art (%d bytes)\n", len(coverData))
-		}
-	}
-
-	return YouTubeDownloadResult{
-		FilePath:    outputPath,
-		Title:       req.TrackName,
-		Artist:      req.ArtistName,
-		Album:       req.AlbumName,
-		ReleaseDate: req.ReleaseDate,
-		TrackNumber: req.TrackNumber,
-		DiscNumber:  req.DiscNumber,
-		ISRC:        req.ISRC,
-		Format:      format,
-		Bitrate:     bitrate,
-		LyricsLRC:   lyricsLRC,
-		CoverData:   coverData,
-	}, nil
-}

go_backend/youtube_quality_test.go

@@ -1,54 +0,0 @@
-package gobackend
-
-import "testing"
-
-func TestParseYouTubeQualityInput_OpusNormalizesToSupportedBitrates(t *testing.T) {
-	format, bitrate, normalized := parseYouTubeQualityInput("opus_160")
-	if format != "opus" {
-		t.Fatalf("expected opus format, got %s", format)
-	}
-	if bitrate != 128 {
-		t.Fatalf("expected 128 bitrate, got %d", bitrate)
-	}
-	if normalized != YouTubeQualityOpus128 {
-		t.Fatalf("expected %s normalized, got %s", YouTubeQualityOpus128, normalized)
-	}
-}
-
-func TestParseYouTubeQualityInput_Mp3NormalizesToSupportedBitrates(t *testing.T) {
-	format, bitrate, normalized := parseYouTubeQualityInput("mp3_192")
-	if format != "mp3" {
-		t.Fatalf("expected mp3 format, got %s", format)
-	}
-	if bitrate != 256 {
-		t.Fatalf("expected 256 bitrate, got %d", bitrate)
-	}
-	if normalized != YouTubeQualityMP3256 {
-		t.Fatalf("expected %s normalized, got %s", YouTubeQualityMP3256, normalized)
-	}
-}
-
-func TestParseYouTubeQualityInput_PicksNearestSupportedBitrate(t *testing.T) {
-	_, opusBitrate, _ := parseYouTubeQualityInput("opus_999")
-	if opusBitrate != 320 {
-		t.Fatalf("expected opus normalization to 320, got %d", opusBitrate)
-	}
-
-	_, mp3Bitrate, _ := parseYouTubeQualityInput("mp3_1")
-	if mp3Bitrate != 128 {
-		t.Fatalf("expected mp3 normalization to 128, got %d", mp3Bitrate)
-	}
-}
-
-func TestParseYouTubeQualityInput_Opus320(t *testing.T) {
-	format, bitrate, normalized := parseYouTubeQualityInput("opus_320")
-	if format != "opus" {
-		t.Fatalf("expected opus format, got %s", format)
-	}
-	if bitrate != 320 {
-		t.Fatalf("expected 320 bitrate, got %d", bitrate)
-	}
-	if normalized != YouTubeQualityOpus320 {
-		t.Fatalf("expected %s normalized, got %s", YouTubeQualityOpus320, normalized)
-	}
-}

lib/constants/app_info.dart

@@ -3,14 +3,14 @@ import 'package:flutter/foundation.dart';
 /// App version and info constants
 /// Update version here only - all other files will reference this
 class AppInfo {
-  static const String version = '3.9.0';
-  static const String buildNumber = '115';
+  static const String version = '4.1.0';
+  static const String buildNumber = '117';
   static const String fullVersion = '$version+$buildNumber';
 
   /// Shows "Internal" in debug builds, actual version in release.
   static String get displayVersion => kDebugMode ? 'Internal' : version;
 
-  static const String appName = 'SpotiFLAC';
+  static const String appName = 'SpotiFLAC Mobile';
   static const String copyright = '© 2026 SpotiFLAC';
 
   static const String mobileAuthor = 'zarzet';

lib/l10n/app_localizations.dart

@@ -1432,6 +1432,66 @@ abstract class AppLocalizations {
   /// **'Playlists'**
   String get searchPlaylists;
 
+  /// Bottom sheet title for search sort options
+  ///
+  /// In en, this message translates to:
+  /// **'Sort Results'**
+  String get searchSortTitle;
+
+  /// Sort option - default API order
+  ///
+  /// In en, this message translates to:
+  /// **'Default'**
+  String get searchSortDefault;
+
+  /// Sort option - title ascending
+  ///
+  /// In en, this message translates to:
+  /// **'Title (A-Z)'**
+  String get searchSortTitleAZ;
+
+  /// Sort option - title descending
+  ///
+  /// In en, this message translates to:
+  /// **'Title (Z-A)'**
+  String get searchSortTitleZA;
+
+  /// Sort option - artist ascending
+  ///
+  /// In en, this message translates to:
+  /// **'Artist (A-Z)'**
+  String get searchSortArtistAZ;
+
+  /// Sort option - artist descending
+  ///
+  /// In en, this message translates to:
+  /// **'Artist (Z-A)'**
+  String get searchSortArtistZA;
+
+  /// Sort option - shortest duration first
+  ///
+  /// In en, this message translates to:
+  /// **'Duration (Shortest)'**
+  String get searchSortDurationShort;
+
+  /// Sort option - longest duration first
+  ///
+  /// In en, this message translates to:
+  /// **'Duration (Longest)'**
+  String get searchSortDurationLong;
+
+  /// Sort option - oldest release first
+  ///
+  /// In en, this message translates to:
+  /// **'Release Date (Oldest)'**
+  String get searchSortDateOldest;
+
+  /// Sort option - newest release first
+  ///
+  /// In en, this message translates to:
+  /// **'Release Date (Newest)'**
+  String get searchSortDateNewest;
+
   /// Tooltip - play button
   ///
   /// In en, this message translates to:
@@ -2662,24 +2722,6 @@ abstract class AppLocalizations {
   /// **'Actual quality depends on track availability from the service'**
   String get qualityNote;
 
-  /// Note for YouTube service explaining lossy-only quality
-  ///
-  /// In en, this message translates to:
-  /// **'YouTube provides lossy audio only. Not part of lossless fallback.'**
-  String get youtubeQualityNote;
-
-  /// Title for YouTube Opus bitrate setting
-  ///
-  /// In en, this message translates to:
-  /// **'YouTube Opus Bitrate'**
-  String get youtubeOpusBitrateTitle;
-
-  /// Title for YouTube MP3 bitrate setting
-  ///
-  /// In en, this message translates to:
-  /// **'YouTube MP3 Bitrate'**
-  String get youtubeMp3BitrateTitle;
-
   /// Setting - show quality picker
   ///
   /// In en, this message translates to:
@@ -2860,6 +2902,18 @@ abstract class AppLocalizations {
   /// **'Artist/Album/ and Artist/Singles/'**
   String get albumFolderArtistAlbumSinglesSubtitle;
 
+  /// Album folder option with singles directly in artist folder
+  ///
+  /// In en, this message translates to:
+  /// **'Artist / Album (Singles flat)'**
+  String get albumFolderArtistAlbumFlat;
+
+  /// Folder structure example for flat singles
+  ///
+  /// In en, this message translates to:
+  /// **'Artist/Album/ and Artist/song.flac'**
+  String get albumFolderArtistAlbumFlatSubtitle;
+
   /// Button - delete selected tracks
   ///
   /// In en, this message translates to:
@@ -5084,6 +5138,168 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Empty only'**
   String get editMetadataSelectEmpty;
+
+  /// Header for active downloads section with count
+  ///
+  /// In en, this message translates to:
+  /// **'Downloading ({count})'**
+  String queueDownloadingCount(int count);
+
+  /// Header label for downloaded items section in library
+  ///
+  /// In en, this message translates to:
+  /// **'Downloaded'**
+  String get queueDownloadedHeader;
+
+  /// Shown while filter results are being computed
+  ///
+  /// In en, this message translates to:
+  /// **'Filtering...'**
+  String get queueFilteringIndicator;
+
+  /// Track count label with plural support
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 track} other{{count} tracks}}'**
+  String queueTrackCount(int count);
+
+  /// Album count label with plural support
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 album} other{{count} albums}}'**
+  String queueAlbumCount(int count);
+
+  /// Empty state title when no album downloads exist
+  ///
+  /// In en, this message translates to:
+  /// **'No album downloads'**
+  String get queueEmptyAlbums;
+
+  /// Empty state subtitle for album downloads
+  ///
+  /// In en, this message translates to:
+  /// **'Download multiple tracks from an album to see them here'**
+  String get queueEmptyAlbumsSubtitle;
+
+  /// Empty state title when no single track downloads exist
+  ///
+  /// In en, this message translates to:
+  /// **'No single downloads'**
+  String get queueEmptySingles;
+
+  /// Empty state subtitle for single track downloads
+  ///
+  /// In en, this message translates to:
+  /// **'Single track downloads will appear here'**
+  String get queueEmptySinglesSubtitle;
+
+  /// Empty state title when download history is empty
+  ///
+  /// In en, this message translates to:
+  /// **'No download history'**
+  String get queueEmptyHistory;
+
+  /// Empty state subtitle for download history
+  ///
+  /// In en, this message translates to:
+  /// **'Downloaded tracks will appear here'**
+  String get queueEmptyHistorySubtitle;
+
+  /// Shown when all playlists are selected in selection mode
+  ///
+  /// In en, this message translates to:
+  /// **'All playlists selected'**
+  String get selectionAllPlaylistsSelected;
+
+  /// Hint shown in playlist selection mode
+  ///
+  /// In en, this message translates to:
+  /// **'Tap playlists to select'**
+  String get selectionTapPlaylistsToSelect;
+
+  /// Hint shown when no playlists are selected for deletion
+  ///
+  /// In en, this message translates to:
+  /// **'Select playlists to delete'**
+  String get selectionSelectPlaylistsToDelete;
+
+  /// Title for audio analysis section
+  ///
+  /// In en, this message translates to:
+  /// **'Audio Quality Analysis'**
+  String get audioAnalysisTitle;
+
+  /// Description for audio analysis tap-to-analyze prompt
+  ///
+  /// In en, this message translates to:
+  /// **'Verify lossless quality with spectrum analysis'**
+  String get audioAnalysisDescription;
+
+  /// Loading text while analyzing audio
+  ///
+  /// In en, this message translates to:
+  /// **'Analyzing audio...'**
+  String get audioAnalysisAnalyzing;
+
+  /// Sample rate metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Sample Rate'**
+  String get audioAnalysisSampleRate;
+
+  /// Bit depth metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Bit Depth'**
+  String get audioAnalysisBitDepth;
+
+  /// Channels metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Channels'**
+  String get audioAnalysisChannels;
+
+  /// Duration metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Duration'**
+  String get audioAnalysisDuration;
+
+  /// Nyquist frequency metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Nyquist'**
+  String get audioAnalysisNyquist;
+
+  /// File size metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Size'**
+  String get audioAnalysisFileSize;
+
+  /// Dynamic range metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Dynamic Range'**
+  String get audioAnalysisDynamicRange;
+
+  /// Peak amplitude metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Peak'**
+  String get audioAnalysisPeak;
+
+  /// RMS level metric label
+  ///
+  /// In en, this message translates to:
+  /// **'RMS'**
+  String get audioAnalysisRms;
+
+  /// Total samples metric label
+  ///
+  /// In en, this message translates to:
+  /// **'Samples'**
+  String get audioAnalysisSamples;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_de.dart

@@ -772,6 +772,36 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlisten';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Abspielen';
 
@@ -1449,16 +1479,6 @@ class AppLocalizationsDe extends AppLocalizations {
   String get qualityNote =>
       'Die eigentliche Qualität hängt von der Verfügbarkeit des Dienstes ab';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube bietet nur verlustbehaftete Audioqualität. Deswegen ist es kein Teil des verlustfreien Fallbacks.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Qualität vor Download fragen';
 
@@ -1558,6 +1578,13 @@ class AppLocalizationsDe extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Künstler/Album/ und Künstler/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Ausgewählte löschen';
 
@@ -2995,4 +3022,106 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_en.dart

@@ -759,6 +759,36 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsEn extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsEn extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2963,4 +2990,106 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_es.dart

@@ -759,6 +759,36 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsEs extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsEs extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2963,6 +2990,108 @@ class AppLocalizationsEs extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }
 
 /// The translations for Spanish Castilian, as used in Spain (`es_ES`).
@@ -4334,16 +4463,6 @@ class AppLocalizationsEsEs extends AppLocalizationsEs {
   String get qualityNote =>
       'La calidad real depende de la disponibilidad de la pista del servicio';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Preguntar antes de descargar';
 

lib/l10n/app_localizations_fr.dart

@@ -761,6 +761,36 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1427,16 +1457,6 @@ class AppLocalizationsFr extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1534,6 +1554,13 @@ class AppLocalizationsFr extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2964,4 +2991,106 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_hi.dart

@@ -759,6 +759,36 @@ class AppLocalizationsHi extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsHi extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsHi extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2962,4 +2989,106 @@ class AppLocalizationsHi extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_id.dart

@@ -762,6 +762,36 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlist';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Putar';
 
@@ -1433,16 +1463,6 @@ class AppLocalizationsId extends AppLocalizations {
   String get qualityNote =>
       'Kualitas sebenarnya tergantung ketersediaan lagu dari layanan';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube hanya menyediakan audio terkompresi (lossy). Bukan bagian dari fallback lossless.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'Bitrate YouTube Opus';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'Kecepatan Bit MP3 YouTube';
-
   @override
   String get downloadAskBeforeDownload => 'Tanya Sebelum Unduh';
 
@@ -1541,6 +1561,13 @@ class AppLocalizationsId extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artis/Album/ dan Artis/Single/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Hapus yang Dipilih';
 
@@ -2972,4 +2999,106 @@ class AppLocalizationsId extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_ja.dart

@@ -754,6 +754,36 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get searchPlaylists => 'プレイリスト';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => '再生';
 
@@ -1414,16 +1444,6 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get qualityNote => '実際の品質はサービスからのトラックの可用性に依存します';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus のビットレート';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 のビットレート';
-
   @override
   String get downloadAskBeforeDownload => 'ダウンロード前に確認する';
 
@@ -1519,6 +1539,13 @@ class AppLocalizationsJa extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => '選択済みを削除';
 
@@ -2949,4 +2976,106 @@ class AppLocalizationsJa extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_ko.dart

@@ -741,6 +741,36 @@ class AppLocalizationsKo extends AppLocalizations {
   @override
   String get searchPlaylists => '재생목록들';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => '재생';
 
@@ -1405,16 +1435,6 @@ class AppLocalizationsKo extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1512,6 +1532,13 @@ class AppLocalizationsKo extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2942,4 +2969,106 @@ class AppLocalizationsKo extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_nl.dart

@@ -759,6 +759,36 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsNl extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsNl extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2962,4 +2989,106 @@ class AppLocalizationsNl extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_pt.dart

@@ -759,6 +759,36 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsPt extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsPt extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2963,6 +2990,108 @@ class AppLocalizationsPt extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }
 
 /// The translations for Portuguese, as used in Portugal (`pt_PT`).
@@ -4331,16 +4460,6 @@ class AppLocalizationsPtPt extends AppLocalizationsPt {
   String get qualityNote =>
       'A qualidade real depende da faixa que estiver disponível no serviço';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Perguntar qualidade antes de baixar';
 

lib/l10n/app_localizations_ru.dart

@@ -773,6 +773,36 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get searchPlaylists => 'Плейлисты';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Воспроизвести';
 
@@ -1450,16 +1480,6 @@ class AppLocalizationsRu extends AppLocalizations {
   String get qualityNote =>
       'Фактическое качество зависит от доступности треков в сервисе';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube обеспечивает только звук с потерями(Lossy).';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'Битрейт YouTube Opus';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'Битрейт YouTube MP3';
-
   @override
   String get downloadAskBeforeDownload => 'Спрашивать перед скачиванием';
 
@@ -1561,6 +1581,13 @@ class AppLocalizationsRu extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Исполнитель/Альбом и Исполнитель/Сингл/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Удалить выбранные';
 
@@ -3022,4 +3049,106 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_tr.dart

@@ -764,6 +764,36 @@ class AppLocalizationsTr extends AppLocalizations {
   @override
   String get searchPlaylists => 'Çalma Listeleri';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Oynat';
 
@@ -1431,16 +1461,6 @@ class AppLocalizationsTr extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1538,6 +1558,13 @@ class AppLocalizationsTr extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2968,4 +2995,106 @@ class AppLocalizationsTr extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }

lib/l10n/app_localizations_zh.dart

@@ -759,6 +759,36 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get searchPlaylists => 'Playlists';
 
+  @override
+  String get searchSortTitle => 'Sort Results';
+
+  @override
+  String get searchSortDefault => 'Default';
+
+  @override
+  String get searchSortTitleAZ => 'Title (A-Z)';
+
+  @override
+  String get searchSortTitleZA => 'Title (Z-A)';
+
+  @override
+  String get searchSortArtistAZ => 'Artist (A-Z)';
+
+  @override
+  String get searchSortArtistZA => 'Artist (Z-A)';
+
+  @override
+  String get searchSortDurationShort => 'Duration (Shortest)';
+
+  @override
+  String get searchSortDurationLong => 'Duration (Longest)';
+
+  @override
+  String get searchSortDateOldest => 'Release Date (Oldest)';
+
+  @override
+  String get searchSortDateNewest => 'Release Date (Newest)';
+
   @override
   String get tooltipPlay => 'Play';
 
@@ -1425,16 +1455,6 @@ class AppLocalizationsZh extends AppLocalizations {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -1532,6 +1552,13 @@ class AppLocalizationsZh extends AppLocalizations {
   String get albumFolderArtistAlbumSinglesSubtitle =>
       'Artist/Album/ and Artist/Singles/';
 
+  @override
+  String get albumFolderArtistAlbumFlat => 'Artist / Album (Singles flat)';
+
+  @override
+  String get albumFolderArtistAlbumFlatSubtitle =>
+      'Artist/Album/ and Artist/song.flac';
+
   @override
   String get downloadedAlbumDeleteSelected => 'Delete Selected';
 
@@ -2963,6 +2990,108 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get editMetadataSelectEmpty => 'Empty only';
+
+  @override
+  String queueDownloadingCount(int count) {
+    return 'Downloading ($count)';
+  }
+
+  @override
+  String get queueDownloadedHeader => 'Downloaded';
+
+  @override
+  String get queueFilteringIndicator => 'Filtering...';
+
+  @override
+  String queueTrackCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count tracks',
+      one: '1 track',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String queueAlbumCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count albums',
+      one: '1 album',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get queueEmptyAlbums => 'No album downloads';
+
+  @override
+  String get queueEmptyAlbumsSubtitle =>
+      'Download multiple tracks from an album to see them here';
+
+  @override
+  String get queueEmptySingles => 'No single downloads';
+
+  @override
+  String get queueEmptySinglesSubtitle =>
+      'Single track downloads will appear here';
+
+  @override
+  String get queueEmptyHistory => 'No download history';
+
+  @override
+  String get queueEmptyHistorySubtitle => 'Downloaded tracks will appear here';
+
+  @override
+  String get selectionAllPlaylistsSelected => 'All playlists selected';
+
+  @override
+  String get selectionTapPlaylistsToSelect => 'Tap playlists to select';
+
+  @override
+  String get selectionSelectPlaylistsToDelete => 'Select playlists to delete';
+
+  @override
+  String get audioAnalysisTitle => 'Audio Quality Analysis';
+
+  @override
+  String get audioAnalysisDescription =>
+      'Verify lossless quality with spectrum analysis';
+
+  @override
+  String get audioAnalysisAnalyzing => 'Analyzing audio...';
+
+  @override
+  String get audioAnalysisSampleRate => 'Sample Rate';
+
+  @override
+  String get audioAnalysisBitDepth => 'Bit Depth';
+
+  @override
+  String get audioAnalysisChannels => 'Channels';
+
+  @override
+  String get audioAnalysisDuration => 'Duration';
+
+  @override
+  String get audioAnalysisNyquist => 'Nyquist';
+
+  @override
+  String get audioAnalysisFileSize => 'Size';
+
+  @override
+  String get audioAnalysisDynamicRange => 'Dynamic Range';
+
+  @override
+  String get audioAnalysisPeak => 'Peak';
+
+  @override
+  String get audioAnalysisRms => 'RMS';
+
+  @override
+  String get audioAnalysisSamples => 'Samples';
 }
 
 /// The translations for Chinese, as used in China (`zh_CN`).
@@ -4297,16 +4426,6 @@ class AppLocalizationsZhCn extends AppLocalizationsZh {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 
@@ -6703,16 +6822,6 @@ class AppLocalizationsZhTw extends AppLocalizationsZh {
   String get qualityNote =>
       'Actual quality depends on track availability from the service';
 
-  @override
-  String get youtubeQualityNote =>
-      'YouTube provides lossy audio only. Not part of lossless fallback.';
-
-  @override
-  String get youtubeOpusBitrateTitle => 'YouTube Opus Bitrate';
-
-  @override
-  String get youtubeMp3BitrateTitle => 'YouTube MP3 Bitrate';
-
   @override
   String get downloadAskBeforeDownload => 'Ask Before Download';
 

lib/l10n/arb/app_de.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube bietet nur verlustbehaftete Audioqualität. Deswegen ist es kein Teil des verlustfreien Fallbacks.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Qualität vor Download fragen",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_en.arb

@@ -999,6 +999,46 @@
   "@searchPlaylists": {
     "description": "Search result category - playlists"
   },
+  "searchSortTitle": "Sort Results",
+  "@searchSortTitle": {
+    "description": "Bottom sheet title for search sort options"
+  },
+  "searchSortDefault": "Default",
+  "@searchSortDefault": {
+    "description": "Sort option - default API order"
+  },
+  "searchSortTitleAZ": "Title (A-Z)",
+  "@searchSortTitleAZ": {
+    "description": "Sort option - title ascending"
+  },
+  "searchSortTitleZA": "Title (Z-A)",
+  "@searchSortTitleZA": {
+    "description": "Sort option - title descending"
+  },
+  "searchSortArtistAZ": "Artist (A-Z)",
+  "@searchSortArtistAZ": {
+    "description": "Sort option - artist ascending"
+  },
+  "searchSortArtistZA": "Artist (Z-A)",
+  "@searchSortArtistZA": {
+    "description": "Sort option - artist descending"
+  },
+  "searchSortDurationShort": "Duration (Shortest)",
+  "@searchSortDurationShort": {
+    "description": "Sort option - shortest duration first"
+  },
+  "searchSortDurationLong": "Duration (Longest)",
+  "@searchSortDurationLong": {
+    "description": "Sort option - longest duration first"
+  },
+  "searchSortDateOldest": "Release Date (Oldest)",
+  "@searchSortDateOldest": {
+    "description": "Sort option - oldest release first"
+  },
+  "searchSortDateNewest": "Release Date (Newest)",
+  "@searchSortDateNewest": {
+    "description": "Sort option - newest release first"
+  },
   "tooltipPlay": "Play",
   "@tooltipPlay": {
     "description": "Tooltip - play button"
@@ -1869,18 +1909,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"
@@ -2001,6 +2029,14 @@
   "@albumFolderArtistAlbumSinglesSubtitle": {
     "description": "Folder structure example"
   },
+  "albumFolderArtistAlbumFlat": "Artist / Album (Singles flat)",
+  "@albumFolderArtistAlbumFlat": {
+    "description": "Album folder option with singles directly in artist folder"
+  },
+  "albumFolderArtistAlbumFlatSubtitle": "Artist/Album/ and Artist/song.flac",
+  "@albumFolderArtistAlbumFlatSubtitle": {
+    "description": "Folder structure example for flat singles"
+  },
   "downloadedAlbumDeleteSelected": "Delete Selected",
   "@downloadedAlbumDeleteSelected": {
     "description": "Button - delete selected tracks"
@@ -3903,5 +3939,129 @@
   "editMetadataSelectEmpty": "Empty only",
   "@editMetadataSelectEmpty": {
     "description": "Button to select only fields that are currently empty"
+  },
+
+  "queueDownloadingCount": "Downloading ({count})",
+  "@queueDownloadingCount": {
+    "description": "Header for active downloads section with count",
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "queueDownloadedHeader": "Downloaded",
+  "@queueDownloadedHeader": {
+    "description": "Header label for downloaded items section in library"
+  },
+  "queueFilteringIndicator": "Filtering...",
+  "@queueFilteringIndicator": {
+    "description": "Shown while filter results are being computed"
+  },
+  "queueTrackCount": "{count, plural, =1{1 track} other{{count} tracks}}",
+  "@queueTrackCount": {
+    "description": "Track count label with plural support",
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "queueAlbumCount": "{count, plural, =1{1 album} other{{count} albums}}",
+  "@queueAlbumCount": {
+    "description": "Album count label with plural support",
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "queueEmptyAlbums": "No album downloads",
+  "@queueEmptyAlbums": {
+    "description": "Empty state title when no album downloads exist"
+  },
+  "queueEmptyAlbumsSubtitle": "Download multiple tracks from an album to see them here",
+  "@queueEmptyAlbumsSubtitle": {
+    "description": "Empty state subtitle for album downloads"
+  },
+  "queueEmptySingles": "No single downloads",
+  "@queueEmptySingles": {
+    "description": "Empty state title when no single track downloads exist"
+  },
+  "queueEmptySinglesSubtitle": "Single track downloads will appear here",
+  "@queueEmptySinglesSubtitle": {
+    "description": "Empty state subtitle for single track downloads"
+  },
+  "queueEmptyHistory": "No download history",
+  "@queueEmptyHistory": {
+    "description": "Empty state title when download history is empty"
+  },
+  "queueEmptyHistorySubtitle": "Downloaded tracks will appear here",
+  "@queueEmptyHistorySubtitle": {
+    "description": "Empty state subtitle for download history"
+  },
+  "selectionAllPlaylistsSelected": "All playlists selected",
+  "@selectionAllPlaylistsSelected": {
+    "description": "Shown when all playlists are selected in selection mode"
+  },
+  "selectionTapPlaylistsToSelect": "Tap playlists to select",
+  "@selectionTapPlaylistsToSelect": {
+    "description": "Hint shown in playlist selection mode"
+  },
+  "selectionSelectPlaylistsToDelete": "Select playlists to delete",
+  "@selectionSelectPlaylistsToDelete": {
+    "description": "Hint shown when no playlists are selected for deletion"
+  },
+  "audioAnalysisTitle": "Audio Quality Analysis",
+  "@audioAnalysisTitle": {
+    "description": "Title for audio analysis section"
+  },
+  "audioAnalysisDescription": "Verify lossless quality with spectrum analysis",
+  "@audioAnalysisDescription": {
+    "description": "Description for audio analysis tap-to-analyze prompt"
+  },
+  "audioAnalysisAnalyzing": "Analyzing audio...",
+  "@audioAnalysisAnalyzing": {
+    "description": "Loading text while analyzing audio"
+  },
+  "audioAnalysisSampleRate": "Sample Rate",
+  "@audioAnalysisSampleRate": {
+    "description": "Sample rate metric label"
+  },
+  "audioAnalysisBitDepth": "Bit Depth",
+  "@audioAnalysisBitDepth": {
+    "description": "Bit depth metric label"
+  },
+  "audioAnalysisChannels": "Channels",
+  "@audioAnalysisChannels": {
+    "description": "Channels metric label"
+  },
+  "audioAnalysisDuration": "Duration",
+  "@audioAnalysisDuration": {
+    "description": "Duration metric label"
+  },
+  "audioAnalysisNyquist": "Nyquist",
+  "@audioAnalysisNyquist": {
+    "description": "Nyquist frequency metric label"
+  },
+  "audioAnalysisFileSize": "Size",
+  "@audioAnalysisFileSize": {
+    "description": "File size metric label"
+  },
+  "audioAnalysisDynamicRange": "Dynamic Range",
+  "@audioAnalysisDynamicRange": {
+    "description": "Dynamic range metric label"
+  },
+  "audioAnalysisPeak": "Peak",
+  "@audioAnalysisPeak": {
+    "description": "Peak amplitude metric label"
+  },
+  "audioAnalysisRms": "RMS",
+  "@audioAnalysisRms": {
+    "description": "RMS level metric label"
+  },
+  "audioAnalysisSamples": "Samples",
+  "@audioAnalysisSamples": {
+    "description": "Total samples metric label"
   }
 }

lib/l10n/arb/app_es_ES.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Preguntar antes de descargar",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_fr.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_hi.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_id.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube hanya menyediakan audio terkompresi (lossy). Bukan bagian dari fallback lossless.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "Bitrate YouTube Opus",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "Kecepatan Bit MP3 YouTube",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Tanya Sebelum Unduh",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_ja.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus のビットレート",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 のビットレート",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "ダウンロード前に確認する",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_ko.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_nl.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_pt_PT.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Perguntar qualidade antes de baixar",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_ru.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube обеспечивает только звук с потерями(Lossy).",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "Битрейт YouTube Opus",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "Битрейт YouTube MP3",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Спрашивать перед скачиванием",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_tr.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_zh_CN.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/l10n/arb/app_zh_TW.arb

@@ -1773,18 +1773,6 @@
   "@qualityNote": {
     "description": "Note about quality availability"
   },
-  "youtubeQualityNote": "YouTube provides lossy audio only. Not part of lossless fallback.",
-  "@youtubeQualityNote": {
-    "description": "Note for YouTube service explaining lossy-only quality"
-  },
-  "youtubeOpusBitrateTitle": "YouTube Opus Bitrate",
-  "@youtubeOpusBitrateTitle": {
-    "description": "Title for YouTube Opus bitrate setting"
-  },
-  "youtubeMp3BitrateTitle": "YouTube MP3 Bitrate",
-  "@youtubeMp3BitrateTitle": {
-    "description": "Title for YouTube MP3 bitrate setting"
-  },
   "downloadAskBeforeDownload": "Ask Before Download",
   "@downloadAskBeforeDownload": {
     "description": "Setting - show quality picker"

lib/main.dart

@@ -192,11 +192,9 @@ class _EagerInitializationState extends ConsumerState<_EagerInitialization>
     if (settings.localLibraryPath.isEmpty) return;
     if (settings.localLibraryAutoScan == 'off') return;
 
-    // Don't start a scan if one is already running.
     final libraryState = ref.read(localLibraryProvider);
     if (libraryState.isScanning) return;
 
-    // Determine cooldown based on auto-scan mode.
     final now = DateTime.now();
     final prefs = await SharedPreferences.getInstance();
     final lastScanned = readLocalLibraryLastScannedAt(prefs);
@@ -220,7 +218,6 @@ class _EagerInitializationState extends ConsumerState<_EagerInitialization>
       }
     }
 
-    // All checks passed -- start an incremental scan.
     final iosBookmark = settings.localLibraryBookmark;
     ref
         .read(localLibraryProvider.notifier)

lib/models/settings.dart

@@ -42,10 +42,6 @@ class AppSettings {
   final String lyricsMode;
   final String
   tidalHighFormat; // Format for Tidal HIGH quality: 'mp3_320', 'opus_256', or 'opus_128'
-  final int
-  youtubeOpusBitrate; // YouTube Opus bitrate (supported: 128/256/320 kbps)
-  final int
-  youtubeMp3Bitrate; // YouTube MP3 bitrate (supported: 128/256/320 kbps)
   final bool
   useAllFilesAccess; // Android 13+ only: enable MANAGE_EXTERNAL_STORAGE
   final bool
@@ -121,8 +117,6 @@ class AppSettings {
     this.locale = 'system',
     this.lyricsMode = 'embed',
     this.tidalHighFormat = 'mp3_320',
-    this.youtubeOpusBitrate = 256,
-    this.youtubeMp3Bitrate = 320,
     this.useAllFilesAccess = false,
     this.autoExportFailedDownloads = false,
     this.downloadNetworkMode = 'any',
@@ -189,8 +183,6 @@ class AppSettings {
     String? locale,
     String? lyricsMode,
     String? tidalHighFormat,
-    int? youtubeOpusBitrate,
-    int? youtubeMp3Bitrate,
     bool? useAllFilesAccess,
     bool? autoExportFailedDownloads,
     String? downloadNetworkMode,
@@ -257,8 +249,6 @@ class AppSettings {
       locale: locale ?? this.locale,
       lyricsMode: lyricsMode ?? this.lyricsMode,
       tidalHighFormat: tidalHighFormat ?? this.tidalHighFormat,
-      youtubeOpusBitrate: youtubeOpusBitrate ?? this.youtubeOpusBitrate,
-      youtubeMp3Bitrate: youtubeMp3Bitrate ?? this.youtubeMp3Bitrate,
       useAllFilesAccess: useAllFilesAccess ?? this.useAllFilesAccess,
       autoExportFailedDownloads:
           autoExportFailedDownloads ?? this.autoExportFailedDownloads,

lib/models/settings.g.dart

@@ -47,8 +47,6 @@ AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
   locale: json['locale'] as String? ?? 'system',
   lyricsMode: json['lyricsMode'] as String? ?? 'embed',
   tidalHighFormat: json['tidalHighFormat'] as String? ?? 'mp3_320',
-  youtubeOpusBitrate: (json['youtubeOpusBitrate'] as num?)?.toInt() ?? 256,
-  youtubeMp3Bitrate: (json['youtubeMp3Bitrate'] as num?)?.toInt() ?? 320,
   useAllFilesAccess: json['useAllFilesAccess'] as bool? ?? false,
   autoExportFailedDownloads:
       json['autoExportFailedDownloads'] as bool? ?? false,
@@ -125,8 +123,6 @@ Map<String, dynamic> _$AppSettingsToJson(
   'locale': instance.locale,
   'lyricsMode': instance.lyricsMode,
   'tidalHighFormat': instance.tidalHighFormat,
-  'youtubeOpusBitrate': instance.youtubeOpusBitrate,
-  'youtubeMp3Bitrate': instance.youtubeMp3Bitrate,
   'useAllFilesAccess': instance.useAllFilesAccess,
   'autoExportFailedDownloads': instance.autoExportFailedDownloads,
   'downloadNetworkMode': instance.downloadNetworkMode,

lib/providers/download_queue_provider.dart

@@ -5,6 +5,7 @@ import 'dart:io';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:connectivity_plus/connectivity_plus.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import 'package:spotiflac_android/models/download_item.dart';
 import 'package:spotiflac_android/models/settings.dart';
 import 'package:spotiflac_android/models/track.dart';
@@ -262,8 +263,14 @@ class DownloadHistoryState {
 class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
   static const int _safRepairBatchSize = 20;
   static const int _safRepairMaxPerLaunch = 60;
+  static const int _orphanCleanupMaxPerLaunch = 80;
   static const int _audioMetadataBackfillMaxPerLaunch = 24;
-  static const _startupMaintenanceDelay = Duration(seconds: 2);
+  static const _startupMaintenanceDelay = Duration(seconds: 4);
+  static const _startupMaintenanceStepGap = Duration(milliseconds: 250);
+  static const _startupSafRepairCursorKey =
+      'history_startup_saf_repair_cursor_v1';
+  static const _startupOrphanCursorKey = 'history_startup_orphan_cursor_v1';
+  static const _startupAudioCursorKey = 'history_startup_audio_cursor_v1';
   final HistoryDatabase _db = HistoryDatabase.instance;
   bool _isLoaded = false;
   bool _isSafRepairInProgress = false;
@@ -320,20 +327,29 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     unawaited(
       Future<void>.delayed(_startupMaintenanceDelay, () async {
         try {
+          final prefs = await SharedPreferences.getInstance();
+
           if (Platform.isAndroid) {
             await _repairMissingSafEntries(
               initialItems,
               maxItems: _safRepairMaxPerLaunch,
+              prefs: prefs,
             );
+            await Future<void>.delayed(_startupMaintenanceStepGap);
           }
 
-          await cleanupOrphanedDownloads();
+          await _cleanupOrphanedDownloadsIncremental(
+            maxItems: _orphanCleanupMaxPerLaunch,
+            prefs: prefs,
+          );
+          await Future<void>.delayed(_startupMaintenanceStepGap);
 
           final currentItems = state.items;
           if (currentItems.isNotEmpty) {
             await _backfillAudioMetadata(
               currentItems,
               maxItems: _audioMetadataBackfillMaxPerLaunch,
+              prefs: prefs,
             );
           }
         } catch (e, stack) {
@@ -344,6 +360,30 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     );
   }
 
+  int _readStartupCursor(SharedPreferences prefs, String key, int totalCount) {
+    if (totalCount <= 0) {
+      return 0;
+    }
+    final cursor = prefs.getInt(key) ?? 0;
+    if (cursor < 0 || cursor >= totalCount) {
+      return 0;
+    }
+    return cursor;
+  }
+
+  Future<void> _writeStartupCursor(
+    SharedPreferences prefs,
+    String key,
+    int nextCursor,
+    int totalCount,
+  ) async {
+    if (totalCount <= 0 || nextCursor <= 0 || nextCursor >= totalCount) {
+      await prefs.remove(key);
+      return;
+    }
+    await prefs.setInt(key, nextCursor);
+  }
+
   String _fileNameFromUri(String uri) {
     try {
       final parsed = Uri.parse(uri);
@@ -357,6 +397,7 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
   Future<void> _repairMissingSafEntries(
     List<DownloadHistoryItem> items, {
     required int maxItems,
+    required SharedPreferences prefs,
   }) async {
     if (_isSafRepairInProgress || items.isEmpty) {
       return;
@@ -378,22 +419,40 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
         continue;
       }
       candidateIndexes.add(i);
-      if (candidateIndexes.length >= maxItems) break;
     }
 
     if (candidateIndexes.isEmpty) {
+      await prefs.remove(_startupSafRepairCursorKey);
+      _isSafRepairInProgress = false;
+      return;
+    }
+
+    final startCursor = _readStartupCursor(
+      prefs,
+      _startupSafRepairCursorKey,
+      candidateIndexes.length,
+    );
+    final endCursor = (startCursor + maxItems).clamp(
+      0,
+      candidateIndexes.length,
+    );
+    final selectedIndexes = candidateIndexes.sublist(startCursor, endCursor);
+
+    if (selectedIndexes.isEmpty) {
+      await prefs.remove(_startupSafRepairCursorKey);
       _isSafRepairInProgress = false;
       return;
     }
 
     final updatedItems = [...items];
+    final persistedUpdates = <Map<String, dynamic>>[];
     var changed = false;
     var repairedCount = 0;
     var verifiedCount = 0;
 
     try {
-      for (var c = 0; c < candidateIndexes.length; c++) {
-        final i = candidateIndexes[c];
+      for (var c = 0; c < selectedIndexes.length; c++) {
+        final i = selectedIndexes[c];
         final item = items[i];
         final rawPath = item.filePath.trim();
         final isDirectSafUri = rawPath.isNotEmpty && isContentUri(rawPath);
@@ -408,7 +467,7 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
             updatedItems[i] = verified;
             changed = true;
             verifiedCount++;
-            await _db.upsert(verified.toJson());
+            persistedUpdates.add(verified.toJson());
             continue;
           }
         }
@@ -445,7 +504,7 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
           updatedItems[i] = updated;
           changed = true;
           repairedCount++;
-          await _db.upsert(updated.toJson());
+          persistedUpdates.add(updated.toJson());
         } catch (e) {
           _historyLog.w('Failed to repair SAF URI: $e');
         }
@@ -456,11 +515,18 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
       }
 
       if (changed) {
+        await _db.upsertBatch(persistedUpdates);
         state = state.copyWith(items: updatedItems);
         _historyLog.i(
-          'SAF repair pass: verified=$verifiedCount, repaired=$repairedCount, checked=${candidateIndexes.length}',
+          'SAF repair pass: verified=$verifiedCount, repaired=$repairedCount, checked=${selectedIndexes.length}',
         );
       }
+      await _writeStartupCursor(
+        prefs,
+        _startupSafRepairCursorKey,
+        endCursor,
+        candidateIndexes.length,
+      );
     } finally {
       _isSafRepairInProgress = false;
     }
@@ -556,6 +622,7 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
   Future<void> _backfillAudioMetadata(
     List<DownloadHistoryItem> items, {
     required int maxItems,
+    required SharedPreferences prefs,
   }) async {
     if (_isAudioMetadataBackfillInProgress || items.isEmpty) {
       return;
@@ -563,15 +630,40 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     _isAudioMetadataBackfillInProgress = true;
 
     try {
+      final candidateIndexes = <int>[];
+      for (var i = 0; i < items.length; i++) {
+        if (_shouldBackfillAudioMetadata(items[i])) {
+          candidateIndexes.add(i);
+        }
+      }
+
+      if (candidateIndexes.isEmpty) {
+        await prefs.remove(_startupAudioCursorKey);
+        return;
+      }
+
+      final startCursor = _readStartupCursor(
+        prefs,
+        _startupAudioCursorKey,
+        candidateIndexes.length,
+      );
+      final endCursor = (startCursor + maxItems).clamp(
+        0,
+        candidateIndexes.length,
+      );
+      final selectedIndexes = candidateIndexes.sublist(startCursor, endCursor);
+
+      if (selectedIndexes.isEmpty) {
+        await prefs.remove(_startupAudioCursorKey);
+        return;
+      }
+
+      List<DownloadHistoryItem>? updatedItems;
+      final persistedUpdates = <Map<String, dynamic>>[];
       var refreshedCount = 0;
 
-      for (final item in items) {
-        if (refreshedCount >= maxItems) {
-          break;
-        }
-        if (!_shouldBackfillAudioMetadata(item)) {
-          continue;
-        }
+      for (final index in selectedIndexes) {
+        final item = items[index];
 
         final probed = await _probeAudioMetadata(
           item.filePath,
@@ -598,15 +690,29 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
           continue;
         }
 
-        await updateAudioMetadataForItem(
-          id: item.id,
+        final updated = item.copyWith(
           quality: resolvedQuality,
           bitDepth: resolvedBitDepth,
           sampleRate: resolvedSampleRate,
         );
+        updatedItems ??= [...items];
+        updatedItems[index] = updated;
+        persistedUpdates.add(updated.toJson());
         refreshedCount++;
       }
 
+      if (persistedUpdates.isNotEmpty && updatedItems != null) {
+        await _db.upsertBatch(persistedUpdates);
+        state = state.copyWith(items: updatedItems);
+      }
+
+      await _writeStartupCursor(
+        prefs,
+        _startupAudioCursorKey,
+        endCursor,
+        candidateIndexes.length,
+      );
+
       if (refreshedCount > 0) {
         _historyLog.i(
           'Audio metadata backfill refreshed $refreshedCount items',
@@ -768,9 +874,6 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     await _db.upsert(updated.toJson());
   }
 
-  /// Remove history entries where the file no longer exists on disk
-  /// Returns the number of orphaned entries removed
-  /// Audio file extensions that the app commonly produces or converts between.
   static const _audioExtensions = [
     '.flac',
     '.m4a',
@@ -781,11 +884,7 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     '.aac',
   ];
 
-  /// When the original file is missing, check whether a sibling with a
-  /// different audio extension exists (e.g. the user converted .flac → .opus).
-  /// Returns the path of the first match found, or `null` if none exist.
   Future<String?> _findConvertedSibling(String originalPath) async {
-    // Strip the current extension to get the base path.
     final dotIndex = originalPath.lastIndexOf('.');
     if (dotIndex < 0) return null;
     final basePath = originalPath.substring(0, dotIndex);
@@ -801,11 +900,16 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
     return null;
   }
 
-  Future<int> cleanupOrphanedDownloads() async {
-    _historyLog.i('Starting orphaned downloads cleanup...');
-
-    final entries = await _db.getAllEntriesWithPaths();
+  Future<
+    ({
+      List<String> orphanedIds,
+      Map<String, String> replacementPaths,
+      Map<String, String> pathById,
+    })
+  >
+  _inspectOrphanedEntries(List<Map<String, dynamic>> entries) async {
     final orphanedIds = <String>[];
+    final replacementPaths = <String, String>{};
     final pathById = <String, String>{};
     const checkChunkSize = 16;
 
@@ -824,14 +928,12 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
           try {
             if (await fileExists(filePath)) return MapEntry(id, true);
 
-            // Original file missing -- check for a converted sibling.
             final sibling = await _findConvertedSibling(filePath);
             if (sibling != null) {
               _historyLog.i(
-                'Found converted sibling for $id: $filePath → $sibling',
+                'Found converted sibling for $id: $filePath -> $sibling',
               );
-              // Update the stored path so future checks succeed immediately.
-              await _db.updateFilePath(id, sibling);
+              replacementPaths[id] = sibling;
               pathById[id] = sibling;
               return MapEntry(id, true);
             }
@@ -853,21 +955,127 @@ class DownloadHistoryNotifier extends Notifier<DownloadHistoryState> {
       }
     }
 
-    if (orphanedIds.isEmpty) {
+    return (
+      orphanedIds: orphanedIds,
+      replacementPaths: replacementPaths,
+      pathById: pathById,
+    );
+  }
+
+  void _applyHistoryPathAndDeletionChanges({
+    required List<String> deletedIds,
+    required Map<String, String> replacementPaths,
+  }) {
+    if (deletedIds.isEmpty && replacementPaths.isEmpty) {
+      return;
+    }
+    final deletedSet = deletedIds.toSet();
+    final updatedItems = <DownloadHistoryItem>[];
+    for (final item in state.items) {
+      if (deletedSet.contains(item.id)) {
+        continue;
+      }
+      final replacementPath = replacementPaths[item.id];
+      if (replacementPath != null && replacementPath != item.filePath) {
+        updatedItems.add(item.copyWith(filePath: replacementPath));
+      } else {
+        updatedItems.add(item);
+      }
+    }
+    state = state.copyWith(items: updatedItems);
+  }
+
+  Future<int> _cleanupOrphanedDownloadsIncremental({
+    required int maxItems,
+    required SharedPreferences prefs,
+  }) async {
+    final cursor = prefs.getInt(_startupOrphanCursorKey) ?? 0;
+    final safeCursor = cursor < 0 ? 0 : cursor;
+    final entries = await _db.getEntriesWithPathsPage(
+      limit: maxItems,
+      offset: safeCursor,
+    );
+    if (entries.isEmpty) {
+      await prefs.remove(_startupOrphanCursorKey);
+      return 0;
+    }
+
+    final result = await _inspectOrphanedEntries(entries);
+    for (final replacement in result.replacementPaths.entries) {
+      await _db.updateFilePath(replacement.key, replacement.value);
+    }
+
+    final deletedCount = result.orphanedIds.isEmpty
+        ? 0
+        : await _db.deleteByIds(result.orphanedIds);
+
+    _applyHistoryPathAndDeletionChanges(
+      deletedIds: result.orphanedIds,
+      replacementPaths: result.replacementPaths,
+    );
+
+    if (entries.length < maxItems) {
+      await prefs.remove(_startupOrphanCursorKey);
+    } else {
+      final nextCursor =
+          safeCursor + entries.length - result.orphanedIds.length;
+      await prefs.setInt(_startupOrphanCursorKey, nextCursor);
+    }
+
+    if (deletedCount > 0 || result.replacementPaths.isNotEmpty) {
+      _historyLog.i(
+        'Startup orphan cleanup pass: removed=$deletedCount, repaired=${result.replacementPaths.length}, checked=${entries.length}',
+      );
+    }
+    return deletedCount;
+  }
+
+  Future<int> cleanupOrphanedDownloads() async {
+    _historyLog.i('Starting orphaned downloads cleanup...');
+    final orphanedIds = <String>[];
+    final replacementPaths = <String, String>{};
+    const pageSize = 256;
+    var offset = 0;
+
+    while (true) {
+      final entries = await _db.getEntriesWithPathsPage(
+        limit: pageSize,
+        offset: offset,
+      );
+      if (entries.isEmpty) {
+        break;
+      }
+
+      final result = await _inspectOrphanedEntries(entries);
+      orphanedIds.addAll(result.orphanedIds);
+      replacementPaths.addAll(result.replacementPaths);
+
+      if (entries.length < pageSize) {
+        break;
+      }
+      offset += entries.length - result.orphanedIds.length;
+    }
+
+    for (final replacement in replacementPaths.entries) {
+      await _db.updateFilePath(replacement.key, replacement.value);
+    }
+
+    if (orphanedIds.isEmpty && replacementPaths.isEmpty) {
       _historyLog.i('No orphaned entries found');
       return 0;
     }
 
-    final deletedCount = await _db.deleteByIds(orphanedIds);
-
-    final orphanedSet = orphanedIds.toSet();
-    state = state.copyWith(
-      items: state.items
-          .where((item) => !orphanedSet.contains(item.id))
-          .toList(),
+    final deletedCount = orphanedIds.isEmpty
+        ? 0
+        : await _db.deleteByIds(orphanedIds);
+    _applyHistoryPathAndDeletionChanges(
+      deletedIds: orphanedIds,
+      replacementPaths: replacementPaths,
     );
 
-    _historyLog.i('Cleaned up $deletedCount orphaned entries');
+    _historyLog.i(
+      'Cleaned up $deletedCount orphaned entries and repaired ${replacementPaths.length} paths',
+    );
     return deletedCount;
   }
 
@@ -1700,6 +1908,20 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         }
       }
 
+      if (albumFolderStructure == 'artist_album_flat') {
+        if (isSingle) {
+          final artistPath = '$baseDir${Platform.pathSeparator}$artistName';
+          await _ensureDirExists(artistPath, label: 'Artist folder');
+          return artistPath;
+        } else {
+          final albumName = _sanitizeFolderName(track.albumName);
+          final albumPath =
+              '$baseDir${Platform.pathSeparator}$artistName${Platform.pathSeparator}$albumName';
+          await _ensureDirExists(albumPath, label: 'Artist Album folder');
+          return albumPath;
+        }
+      }
+
       if (isSingle) {
         final singlesPath = '$baseDir${Platform.pathSeparator}Singles';
         await _ensureDirExists(singlesPath, label: 'Singles folder');
@@ -1920,15 +2142,12 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
   }
 
   String _determineOutputExt(String quality, String service) {
-    if (service.toLowerCase() == 'youtube') {
-      if (quality.toLowerCase().contains('mp3')) {
-        return '.mp3';
-      }
-      return '.opus';
-    }
     if (service.toLowerCase() == 'tidal' && quality == 'HIGH') {
       return '.m4a';
     }
+    final q = quality.toLowerCase();
+    if (q.startsWith('opus')) return '.opus';
+    if (q.startsWith('mp3')) return '.mp3';
     return '.flac';
   }
 
@@ -2206,6 +2425,31 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     _requestNativeCancel(id);
   }
 
+  void dismissItem(String id) {
+    final item = _findItemById(id);
+    if (item == null) return;
+
+    final isActive =
+        item.status == DownloadStatus.queued ||
+        item.status == DownloadStatus.downloading ||
+        item.status == DownloadStatus.finalizing;
+
+    if (isActive) {
+      _pausePendingItemIds.remove(id);
+      _locallyCancelledItemIds.add(id);
+      _requestNativeCancel(id);
+    } else {
+      _locallyCancelledItemIds.remove(id);
+    }
+
+    final items = state.items.where((entry) => entry.id != id).toList();
+    final currentDownload = state.currentDownload?.id == id
+        ? null
+        : state.currentDownload;
+    state = state.copyWith(items: items, currentDownload: currentDownload);
+    _saveQueueToStorage();
+  }
+
   void clearCompleted() {
     final items = state.items
         .where(
@@ -2474,7 +2718,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
   static final _deezerSizeRegex = RegExp(r'/(\d+)x(\d+)-\d+-\d+-\d+-\d+\.jpg$');
 
   String _upgradeToMaxQualityCover(String coverUrl) {
-    // Spotify CDN upgrade (hash-based size identifiers)
     const spotifySize300 = 'ab67616d00001e02';
     const spotifySize640 = 'ab67616d0000b273';
     const spotifySizeMax = 'ab67616d000082c1';
@@ -2487,7 +2730,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       result = result.replaceFirst(spotifySize640, spotifySizeMax);
     }
 
-    // Deezer CDN upgrade (1000x1000 → 1800x1800)
     if (result.contains('cdn-images.dzcdn.net')) {
       final upgraded = result.replaceFirst(
         _deezerSizeRegex,
@@ -3168,7 +3410,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
   Future<void> _processQueue() async {
     if (state.isProcessing) return;
 
-    // Check network connectivity before starting
     final settings = ref.read(settingsProvider);
     updateSettings(settings);
     final isSafMode = _isSafMode(settings);
@@ -3228,7 +3469,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         state = state.copyWith(outputDir: musicDir.path);
         ref.read(settingsProvider.notifier).setDownloadDirectory(musicDir.path);
       } else if (!isValidIosWritablePath(state.outputDir)) {
-        // Check for other invalid paths (like container root without Documents/)
         _log.w(
           'iOS: Invalid output path detected (container root?), falling back to app Documents folder',
         );
@@ -3250,7 +3490,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       _log.d('Output directory: ${state.outputDir}');
     } else {
       _log.d('Output directory: SAF (tree_uri=${settings.downloadTreeUri})');
-      // Validate SAF permission is still accessible
       try {
         final testResult = await PlatformBridge.createSafFileFromPath(
           treeUri: settings.downloadTreeUri,
@@ -3259,16 +3498,12 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
           mimeType: 'application/octet-stream',
           srcPath: '',
         );
-        // If we got a result, permission is valid (file creation may fail but that's ok)
-        // If permission is revoked, this will throw
         if (testResult != null) {
-          // Clean up test file
           await PlatformBridge.safDelete(testResult);
         }
       } catch (e) {
         _log.e('SAF permission validation failed: $e');
         _log.w('SAF tree URI may be invalid or permission revoked');
-        // Mark all queued items as failed
         for (final item in state.items) {
           if (item.status == DownloadStatus.queued) {
             updateItemStatus(
@@ -3402,8 +3637,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       }
 
       if (activeDownloads.isNotEmpty) {
-        // Re-check queue/settings periodically so concurrency changes
-        // (e.g. 1 -> 3) can take effect before any active item finishes.
         await Future.any([
           Future.any(activeDownloads.values),
           Future.delayed(_queueSchedulingInterval),
@@ -3555,28 +3788,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       );
 
       var quality = item.qualityOverride ?? state.audioQuality;
-      if (item.service.toLowerCase() == 'youtube') {
-        final normalized = quality.toLowerCase();
-        final isYoutubeQuality =
-            normalized.startsWith('mp3_') || normalized.startsWith('opus_');
-        if (!isYoutubeQuality) {
-          final mp3Bitrate = (() {
-            const supported = [128, 256, 320];
-            var nearest = supported.first;
-            var nearestDistance = (settings.youtubeMp3Bitrate - nearest).abs();
-            for (final option in supported.skip(1)) {
-              final distance = (settings.youtubeMp3Bitrate - option).abs();
-              if (distance < nearestDistance ||
-                  (distance == nearestDistance && option > nearest)) {
-                nearest = option;
-                nearestDistance = distance;
-              }
-            }
-            return nearest;
-          })();
-          quality = 'mp3_$mp3Bitrate';
-        }
-      }
       final isSafMode = _isSafMode(settings);
       final relativeOutputDir = isSafMode
           ? await _buildRelativeOutputDir(
@@ -3684,13 +3895,101 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         }
       }
 
-      // Fallback: Use SongLink to convert Spotify ID to Deezer ID
+      // For tidal:/qobuz: tracks without ISRC, resolve ISRC from provider
+      // API directly (faster than SongLink and avoids rate limits).
+      if (deezerTrackId == null &&
+          (trackToDownload.isrc == null ||
+              trackToDownload.isrc!.isEmpty ||
+              !_isValidISRC(trackToDownload.isrc!)) &&
+          (trackToDownload.id.startsWith('tidal:') ||
+              trackToDownload.id.startsWith('qobuz:'))) {
+        try {
+          final colonIdx = trackToDownload.id.indexOf(':');
+          final provider = trackToDownload.id.substring(0, colonIdx);
+          final providerTrackId = trackToDownload.id.substring(colonIdx + 1);
+
+          _log.d('No ISRC, fetching from $provider API: $providerTrackId');
+          final providerData = provider == 'tidal'
+              ? await PlatformBridge.getTidalMetadata('track', providerTrackId)
+              : await PlatformBridge.getQobuzMetadata('track', providerTrackId);
+
+          final trackData = providerData['track'] as Map<String, dynamic>?;
+          if (trackData != null) {
+            final resolvedIsrc = normalizeOptionalString(
+              trackData['isrc'] as String?,
+            );
+
+            if (resolvedIsrc != null && _isValidISRC(resolvedIsrc)) {
+              _log.d('Resolved ISRC from $provider: $resolvedIsrc');
+
+              final provReleaseDate = normalizeOptionalString(
+                trackData['release_date'] as String?,
+              );
+              final provTrackNum = trackData['track_number'] as int?;
+              final provDiscNum = trackData['disc_number'] as int?;
+
+              trackToDownload = Track(
+                id: trackToDownload.id,
+                name: trackToDownload.name,
+                artistName: trackToDownload.artistName,
+                albumName: trackToDownload.albumName,
+                albumArtist: trackToDownload.albumArtist,
+                artistId: trackToDownload.artistId,
+                albumId: trackToDownload.albumId,
+                coverUrl: normalizeCoverReference(trackToDownload.coverUrl),
+                duration: trackToDownload.duration,
+                isrc: resolvedIsrc,
+                trackNumber:
+                    (trackToDownload.trackNumber != null &&
+                        trackToDownload.trackNumber! > 0)
+                    ? trackToDownload.trackNumber
+                    : provTrackNum,
+                discNumber:
+                    (trackToDownload.discNumber != null &&
+                        trackToDownload.discNumber! > 0)
+                    ? trackToDownload.discNumber
+                    : provDiscNum,
+                releaseDate: trackToDownload.releaseDate ?? provReleaseDate,
+                deezerId: trackToDownload.deezerId,
+                availability: trackToDownload.availability,
+                albumType: trackToDownload.albumType,
+                totalTracks: trackToDownload.totalTracks,
+                source: trackToDownload.source,
+              );
+
+              try {
+                final deezerResult = await PlatformBridge.searchDeezerByISRC(
+                  resolvedIsrc,
+                );
+                if (deezerResult['success'] == true &&
+                    deezerResult['track_id'] != null) {
+                  deezerTrackId = deezerResult['track_id'].toString();
+                  _log.d(
+                    'Found Deezer track ID via $provider ISRC: $deezerTrackId',
+                  );
+                }
+              } catch (e) {
+                _log.w('Failed to search Deezer by $provider ISRC: $e');
+              }
+            }
+          }
+        } catch (e) {
+          _log.w('Failed to resolve ISRC from provider: $e');
+        }
+
+        if (shouldAbortWork('during provider ISRC resolution')) {
+          return;
+        }
+      }
+
       if (!selectedExtensionDownloadProvider &&
           deezerTrackId == null &&
           !shouldSkipExtensionSongLinkPrelookup &&
           trackToDownload.id.isNotEmpty &&
           !trackToDownload.id.startsWith('deezer:') &&
-          !trackToDownload.id.startsWith('extension:')) {
+          !trackToDownload.id.startsWith('extension:') &&
+          !trackToDownload.id.startsWith('tidal:') &&
+          !trackToDownload.id.startsWith('qobuz:')) {
         try {
           String spotifyId = trackToDownload.id;
           if (spotifyId.startsWith('spotify:track:')) {
@@ -3703,7 +4002,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
             'track',
             spotifyId,
           );
-          // Response is TrackResponse: {"track": {"spotify_id": "deezer:XXXXX", ...}}
           final trackData = deezerData['track'];
           if (trackData is Map<String, dynamic>) {
             final rawId = trackData['spotify_id'] as String?;
@@ -3839,14 +4137,10 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         final relativeDir = useSaf ? outputDir : '';
         final fileName = useSaf ? (safFileName ?? '') : '';
         final outputExt = useSaf ? safOutputExt : '';
-        final isYouTube = item.service == 'youtube';
-        final shouldUseExtensions = !isYouTube && useExtensions;
-        final shouldUseFallback = !isYouTube && state.autoFallback;
+        final shouldUseExtensions = useExtensions;
+        final shouldUseFallback = state.autoFallback;
 
-        if (isYouTube) {
-          _log.d('Using YouTube/Cobalt provider for download');
-          _log.d('Quality: $quality (lossy only)');
-        } else if (shouldUseExtensions) {
+        if (shouldUseExtensions) {
           _log.d('Using extension providers for download');
           _log.d(
             'Quality: $quality${item.qualityOverride != null ? ' (override)' : ''}',
@@ -4013,7 +4307,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
           finalSafFileName = reportedFileName;
         }
 
-        // Check if file already existed (detected via ISRC match in Go backend)
         final wasExisting = result['already_exists'] == true;
         if (wasExisting) {
           _log.i('File already exists in library: $filePath');
@@ -4026,7 +4319,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         String actualQuality = quality;
 
         if (actualBitDepth != null && actualBitDepth > 0) {
-          // Format: "24-bit/96kHz" or "16-bit/44.1kHz"
           final sampleRateKHz = actualSampleRate != null && actualSampleRate > 0
               ? (actualSampleRate / 1000).toStringAsFixed(
                   actualSampleRate % 1000 == 0 ? 0 : 1,
@@ -4182,7 +4474,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         }
 
         if (isM4aFile || shouldForceTidalSafM4aHandling) {
-          // At this point filePath is guaranteed non-null by the checks above.
           final currentFilePath = filePath;
 
           if (isContentUriPath && effectiveSafMode) {
@@ -4521,11 +4812,23 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         } else if (metadataEmbeddingEnabled &&
             isContentUriPath &&
             effectiveSafMode &&
-            isFlacFile &&
+            !isM4aFile &&
             !wasExisting) {
           final currentFilePath = filePath;
+          final isOpusFile = filePath.endsWith('.opus');
+          final isMp3File = filePath.endsWith('.mp3');
+          final ext = isOpusFile
+              ? '.opus'
+              : isMp3File
+              ? '.mp3'
+              : '.flac';
+          final formatName = isOpusFile
+              ? 'Opus'
+              : isMp3File
+              ? 'MP3'
+              : 'FLAC';
           _log.d(
-            'SAF FLAC detected, embedding metadata and cover via temp file...',
+            'SAF $formatName detected, embedding metadata and cover via temp file...',
           );
           final tempPath = await _copySafToTemp(currentFilePath);
           if (tempPath != null) {
@@ -4545,21 +4848,39 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
               final backendLabel = result['label'] as String?;
               final backendCopyright = result['copyright'] as String?;
 
-              await _embedMetadataAndCover(
-                tempPath,
-                finalTrack,
-                genre: backendGenre ?? genre,
-                label: backendLabel ?? label,
-                copyright: backendCopyright,
-                writeExternalLrc: false,
-              );
+              if (isMp3File) {
+                await _embedMetadataToMp3(
+                  tempPath,
+                  finalTrack,
+                  genre: backendGenre ?? genre,
+                  label: backendLabel ?? label,
+                  copyright: backendCopyright,
+                );
+              } else if (isOpusFile) {
+                await _embedMetadataToOpus(
+                  tempPath,
+                  finalTrack,
+                  genre: backendGenre ?? genre,
+                  label: backendLabel ?? label,
+                  copyright: backendCopyright,
+                );
+              } else {
+                await _embedMetadataAndCover(
+                  tempPath,
+                  finalTrack,
+                  genre: backendGenre ?? genre,
+                  label: backendLabel ?? label,
+                  copyright: backendCopyright,
+                  writeExternalLrc: false,
+                );
+              }
 
-              final newFileName = '${safBaseName ?? 'track'}.flac';
+              final newFileName = '${safBaseName ?? 'track'}$ext';
               final newUri = await _writeTempToSaf(
                 treeUri: settings.downloadTreeUri,
                 relativeDir: effectiveOutputDir,
                 fileName: newFileName,
-                mimeType: _mimeTypeForExt('.flac'),
+                mimeType: _mimeTypeForExt(ext),
                 srcPath: tempPath,
               );
 
@@ -4569,12 +4890,14 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
                 }
                 filePath = newUri;
                 finalSafFileName = newFileName;
-                _log.d('SAF FLAC metadata embedding completed');
+                _log.d('SAF $formatName metadata embedding completed');
               } else {
-                _log.w('Failed to write metadata-updated FLAC back to SAF');
+                _log.w(
+                  'Failed to write metadata-updated $formatName back to SAF',
+                );
               }
             } catch (e) {
-              _log.w('SAF FLAC metadata embedding failed: $e');
+              _log.w('SAF $formatName metadata embedding failed: $e');
             } finally {
               try {
                 await File(tempPath).delete();
@@ -4619,109 +4942,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
           }
         }
 
-        // YouTube downloads: embed metadata to raw Opus/MP3 files from Cobalt
-        if (metadataEmbeddingEnabled &&
-            !wasExisting &&
-            item.service == 'youtube' &&
-            filePath != null) {
-          final isOpusFile = filePath.endsWith('.opus');
-          final isMp3File = filePath.endsWith('.mp3');
-
-          if (isOpusFile || isMp3File) {
-            _log.i(
-              'YouTube download: embedding metadata to ${isOpusFile ? 'Opus' : 'MP3'} file',
-            );
-            updateItemStatus(
-              item.id,
-              DownloadStatus.downloading,
-              progress: 0.95,
-            );
-
-            final finalTrack = _buildTrackForMetadataEmbedding(
-              trackToDownload,
-              result,
-              resolvedAlbumArtist,
-            );
-            final backendGenre = result['genre'] as String?;
-            final backendLabel = result['label'] as String?;
-            final backendCopyright = result['copyright'] as String?;
-
-            final isContentUriPath = isContentUri(filePath);
-            if (isContentUriPath && effectiveSafMode) {
-              final tempPath = await _copySafToTemp(filePath);
-              if (tempPath != null) {
-                try {
-                  if (isMp3File) {
-                    await _embedMetadataToMp3(
-                      tempPath,
-                      finalTrack,
-                      genre: backendGenre ?? genre,
-                      label: backendLabel ?? label,
-                      copyright: backendCopyright,
-                    );
-                  } else {
-                    await _embedMetadataToOpus(
-                      tempPath,
-                      finalTrack,
-                      genre: backendGenre ?? genre,
-                      label: backendLabel ?? label,
-                      copyright: backendCopyright,
-                    );
-                  }
-                  final ext = isMp3File ? '.mp3' : '.opus';
-                  final newFileName = '${safBaseName ?? 'track'}$ext';
-                  final newUri = await _writeTempToSaf(
-                    treeUri: settings.downloadTreeUri,
-                    relativeDir: effectiveOutputDir,
-                    fileName: newFileName,
-                    mimeType: _mimeTypeForExt(ext),
-                    srcPath: tempPath,
-                  );
-                  if (newUri != null) {
-                    if (newUri != filePath) {
-                      await _deleteSafFile(filePath);
-                    }
-                    filePath = newUri;
-                    finalSafFileName = newFileName;
-                    _log.d('YouTube SAF metadata embedding completed');
-                  } else {
-                    _log.w('Failed to write metadata-updated file back to SAF');
-                  }
-                } catch (e) {
-                  _log.w('YouTube SAF metadata embedding failed: $e');
-                } finally {
-                  try {
-                    await File(tempPath).delete();
-                  } catch (_) {}
-                }
-              }
-            } else {
-              try {
-                if (isMp3File) {
-                  await _embedMetadataToMp3(
-                    filePath,
-                    finalTrack,
-                    genre: backendGenre ?? genre,
-                    label: backendLabel ?? label,
-                    copyright: backendCopyright,
-                  );
-                } else {
-                  await _embedMetadataToOpus(
-                    filePath,
-                    finalTrack,
-                    genre: backendGenre ?? genre,
-                    label: backendLabel ?? label,
-                    copyright: backendCopyright,
-                  );
-                }
-                _log.d('YouTube metadata embedding completed');
-              } catch (e) {
-                _log.w('YouTube metadata embedding failed: $e');
-              }
-            }
-          }
-        }
-
         final itemAfterDownload = _findItemById(item.id);
         if (itemAfterDownload == null ||
             _isLocallyCancelled(item.id, item: itemAfterDownload)) {
@@ -4746,9 +4966,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
           return;
         }
 
-        // SAF downloads should end with content URI. If we still have a
-        // transient FD path, recover URI from SAF metadata to keep history
-        // dedup/exclusion stable.
         if (effectiveSafMode &&
             filePath != null &&
             filePath.isNotEmpty &&
@@ -5063,8 +5280,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
         );
         _failedInSession++;
 
-        // Immediately cleanup connections after failure to prevent
-        // poisoned connection pool from affecting subsequent downloads
         try {
           await PlatformBridge.cleanupConnections();
         } catch (e) {
@@ -5117,7 +5332,6 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
       );
       _failedInSession++;
 
-      // Immediately cleanup connections after exception
       try {
         await PlatformBridge.cleanupConnections();
       } catch (cleanupErr) {

lib/providers/explore_provider.dart

@@ -11,7 +11,7 @@ final _log = AppLogger('ExploreProvider');
 class ExploreItem {
   final String id;
   final String uri;
-  final String type; // track, album, playlist, artist, station
+  final String type;
   final String name;
   final String artists;
   final String? description;
@@ -168,7 +168,6 @@ class ExploreNotifier extends Notifier<ExploreState> {
     return const ExploreState();
   }
 
-  /// Restore cached home feed from SharedPreferences immediately on startup
   Future<void> _restoreFromCache() async {
     try {
       final prefs = await SharedPreferences.getInstance();
@@ -199,7 +198,6 @@ class ExploreNotifier extends Notifier<ExploreState> {
     }
   }
 
-  /// Save home feed to SharedPreferences for instant restore on next launch
   Future<void> _saveToCache(List<ExploreSection> sections) async {
     try {
       final prefs = await SharedPreferences.getInstance();
@@ -212,11 +210,9 @@ class ExploreNotifier extends Notifier<ExploreState> {
     }
   }
 
-  /// Fetch home feed from spotify-web extension
   Future<void> fetchHomeFeed({bool forceRefresh = false}) async {
     _log.i('fetchHomeFeed called, forceRefresh=$forceRefresh');
 
-    // If we have cached content and it's fresh enough, skip network fetch
     if (!forceRefresh &&
         state.hasContent &&
         state.lastFetched != null &&
@@ -230,7 +226,6 @@ class ExploreNotifier extends Notifier<ExploreState> {
       return;
     }
 
-    // Only show loading spinner if we have no cached content to display
     final showLoading = !state.hasContent;
     state = state.copyWith(isLoading: showLoading, error: null);
 
@@ -247,14 +242,12 @@ class ExploreNotifier extends Notifier<ExploreState> {
         if (!extension.enabled || !extension.hasHomeFeed) {
           continue;
         }
-        // If user has a preference, use that
         if (preferredId != null &&
             preferredId.isNotEmpty &&
             extension.id == preferredId) {
           targetExt = extension;
           break;
         }
-        // Otherwise take the first available (fallback to spotify-web if found)
         if (targetExt == null || extension.id == 'spotify-web') {
           targetExt = extension;
           if (preferredId == null && extension.id == 'spotify-web') {
@@ -317,7 +310,6 @@ class ExploreNotifier extends Notifier<ExploreState> {
         lastFetched: DateTime.now(),
       );
 
-      // Save to disk cache for instant restore on next app launch
       _saveToCache(sections);
     } catch (e, stack) {
       _log.e('Error fetching home feed: $e', e, stack);

lib/providers/extension_provider.dart

@@ -32,14 +32,12 @@ class Extension {
   final bool hasMetadataProvider;
   final bool hasDownloadProvider;
   final bool hasLyricsProvider;
-  final bool
-  skipMetadataEnrichment; // If true, use metadata from extension instead of enriching
+  final bool skipMetadataEnrichment;
   final SearchBehavior? searchBehavior;
   final URLHandler? urlHandler;
   final TrackMatching? trackMatching;
   final PostProcessing? postProcessing;
-  final Map<String, dynamic>
-  capabilities; // Extension capabilities (homeFeed, browseCategories, etc.)
+  final Map<String, dynamic> capabilities;
 
   const Extension({
     required this.id,
@@ -198,12 +196,10 @@ class SearchBehavior {
   final String? placeholder;
   final bool primary;
   final String? icon;
-  final String?
-  thumbnailRatio; // "square" (1:1), "wide" (16:9), "portrait" (2:3)
+  final String? thumbnailRatio;
   final int? thumbnailWidth;
   final int? thumbnailHeight;
-  final List<SearchFilter>
-  filters; // Available search filters (e.g., track, album, artist, playlist)
+  final List<SearchFilter> filters;
 
   const SearchBehavior({
     required this.enabled,
@@ -239,11 +235,11 @@ class SearchBehavior {
     }
 
     switch (thumbnailRatio) {
-      case 'wide': // 16:9 - YouTube style
+      case 'wide':
         return (defaultSize * 16 / 9, defaultSize);
-      case 'portrait': // 2:3 - Poster style
+      case 'portrait':
         return (defaultSize * 2 / 3, defaultSize);
-      case 'square': // 1:1 - Album art style
+      case 'square':
       default:
         return (defaultSize, defaultSize);
     }
@@ -290,7 +286,6 @@ class PostProcessing {
   }
 }
 
-/// URL handler configuration for custom URL patterns
 class URLHandler {
   final bool enabled;
   final List<String> patterns;
@@ -304,7 +299,6 @@ class URLHandler {
     );
   }
 
-  /// Check if a URL matches any of the patterns
   bool matchesURL(String url) {
     if (!enabled || patterns.isEmpty) return false;
     final lowerUrl = url.toLowerCase();

lib/providers/library_collections_provider.dart

@@ -666,7 +666,6 @@ class LibraryCollectionsNotifier extends Notifier<LibraryCollectionsState> {
     final destPath = p.join(coversDir.path, '$playlistId$ext');
     if (playlist.coverImagePath == destPath) return;
 
-    // Copy image to persistent location
     await File(sourceFilePath).copy(destPath);
 
     final now = DateTime.now();
@@ -686,7 +685,6 @@ class LibraryCollectionsNotifier extends Notifier<LibraryCollectionsState> {
     final playlist = state.playlistById(playlistId);
     if (playlist == null || playlist.coverImagePath == null) return;
 
-    // Delete the file if it exists
     final path = playlist.coverImagePath;
     if (path != null) {
       final file = File(path);

lib/providers/local_library_provider.dart

@@ -252,8 +252,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
 
     _startProgressPolling();
 
-    // On iOS, start accessing the security-scoped bookmark so the Go backend
-    // can read files outside the app sandbox.
     String? resolvedPath;
     bool didStartSecurityAccess = false;
     if (Platform.isIOS && iosBookmark != null && iosBookmark.isNotEmpty) {
@@ -275,9 +273,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
     try {
       final isSaf = effectiveFolderPath.startsWith('content://');
 
-      // Get all file paths from download history to exclude them.
-      // Merge DB + in-memory state to avoid race when a fresh download has not
-      // been flushed to SQLite yet.
       final downloadedPaths = await _historyDb.getAllFilePaths();
       final inMemoryHistoryPaths = ref
           .read(downloadHistoryProvider)
@@ -298,7 +293,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
       );
 
       if (forceFullScan) {
-        // Full scan path - ignores existing data
         final results = isSaf
             ? await PlatformBridge.scanSafTree(effectiveFolderPath)
             : await PlatformBridge.scanLibraryFolder(effectiveFolderPath);
@@ -324,16 +318,8 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           _log.i('Skipped $skippedDownloads files already in download history');
         }
 
-        // Full scan should replace library index entirely.
-        await _db.clearAll();
-        if (items.isNotEmpty) {
-          await _db.upsertBatch(items.map((e) => e.toJson()).toList());
-        }
-        final persistedItems =
-            (await _db.getAll())
-                .map(LocalLibraryItem.fromJson)
-                .toList(growable: false)
-              ..sort(_compareLibraryItems);
+        await _db.replaceAll(items.map((e) => e.toJson()).toList());
+        final persistedItems = [...items]..sort(_compareLibraryItems);
 
         final now = DateTime.now();
         try {
@@ -364,7 +350,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           errorCount: state.scanErrorCount,
         );
       } else {
-        // Incremental scan path - only scans new/modified files
         final existingFiles = await _db.getFileModTimes();
         _log.i(
           'Incremental scan: ${existingFiles.length} existing files in database',
@@ -423,7 +408,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           return;
         }
 
-        // SAF returns 'files' and 'removedUris', non-SAF returns 'scanned' and 'deletedPaths'
         final scannedList =
             (result['files'] as List<dynamic>?) ??
             (result['scanned'] as List<dynamic>?) ??
@@ -444,10 +428,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           '$skippedCount skipped, ${deletedPaths.length} deleted, $totalFiles total',
         );
 
-        // Build the incremental merge base from SQLite, not the current
-        // provider state. Startup auto-scan can fire before `state.items` has
-        // finished loading, which would otherwise drop unchanged rows from the
-        // in-memory library until a manual full rescan.
         final existingJson = await _db.getAll();
         final currentByPath = <String, LocalLibraryItem>{
           for (final item in existingJson.map(LocalLibraryItem.fromJson))
@@ -468,7 +448,6 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           );
         }
 
-        // Upsert new/modified items (excluding downloaded files)
         final updatedItems = <LocalLibraryItem>[];
         int skippedDownloads = existingDownloadedPaths.length;
         if (scannedList.isNotEmpty) {
@@ -502,11 +481,8 @@ class LocalLibraryNotifier extends Notifier<LocalLibraryState> {
           _log.i('Deleted $deleteCount items from database');
         }
 
-        final items =
-            (await _db.getAll())
-                .map(LocalLibraryItem.fromJson)
-                .toList(growable: false)
-              ..sort(_compareLibraryItems);
+        final items = currentByPath.values.toList(growable: false)
+          ..sort(_compareLibraryItems);
 
         final now = DateTime.now();
         try {

lib/providers/recent_access_provider.dart

@@ -5,18 +5,16 @@ import 'package:spotiflac_android/services/app_state_database.dart';
 
 const _maxRecentItems = 20;
 
-/// Types of items that can be accessed
 enum RecentAccessType { artist, album, track, playlist }
 
-/// Represents a recently accessed item
 class RecentAccessItem {
   final String id;
   final String name;
-  final String? subtitle; // Artist name for tracks/albums, null for artists
+  final String? subtitle;
   final String? imageUrl;
   final RecentAccessType type;
   final DateTime accessedAt;
-  final String? providerId; // Extension ID or 'deezer' for built-in
+  final String? providerId;
 
   const RecentAccessItem({
     required this.id,
@@ -53,7 +51,6 @@ class RecentAccessItem {
     );
   }
 
-  /// Create a unique key for deduplication
   String get uniqueKey => '${type.name}:${providerId ?? 'default'}:$id';
 
   @override
@@ -67,7 +64,6 @@ class RecentAccessItem {
   int get hashCode => uniqueKey.hashCode;
 }
 
-/// State for recent access history
 class RecentAccessState {
   final List<RecentAccessItem> items;
   final Set<String> hiddenDownloadIds;
@@ -92,7 +88,6 @@ class RecentAccessState {
   }
 }
 
-/// Provider for managing recent access history
 class RecentAccessNotifier extends Notifier<RecentAccessState> {
   final AppStateDatabase _appStateDb = AppStateDatabase.instance;
 
@@ -135,7 +130,6 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     }
   }
 
-  /// Record an access to an artist
   void recordArtistAccess({
     required String id,
     required String name,
@@ -154,7 +148,6 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     );
   }
 
-  /// Record an access to an album
   void recordAlbumAccess({
     required String id,
     required String name,
@@ -175,7 +168,6 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     );
   }
 
-  /// Record an access to a track
   void recordTrackAccess({
     required String id,
     required String name,
@@ -196,7 +188,6 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     );
   }
 
-  /// Record an access to a playlist
   void recordPlaylistAccess({
     required String id,
     required String name,
@@ -242,7 +233,6 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     }
   }
 
-  /// Remove a specific item from history
   void removeItem(RecentAccessItem item) {
     final updatedItems = state.items
         .where((e) => e.uniqueKey != item.uniqueKey)
@@ -251,25 +241,21 @@ class RecentAccessNotifier extends Notifier<RecentAccessState> {
     unawaited(_appStateDb.deleteRecentAccessRow(item.uniqueKey));
   }
 
-  /// Hide a download item from recents (without deleting the actual download)
   void hideDownloadFromRecents(String downloadId) {
     final updatedHidden = {...state.hiddenDownloadIds, downloadId};
     state = state.copyWith(hiddenDownloadIds: updatedHidden);
     unawaited(_appStateDb.addHiddenRecentDownloadId(downloadId));
   }
 
-  /// Check if a download is hidden from recents
   bool isDownloadHidden(String downloadId) {
     return state.hiddenDownloadIds.contains(downloadId);
   }
 
-  /// Clear all history
   void clearHistory() {
     state = state.copyWith(items: []);
     unawaited(_appStateDb.clearRecentAccessRows());
   }
 
-  /// Clear hidden downloads (show all again)
   void clearHiddenDownloads() {
     state = state.copyWith(hiddenDownloadIds: {});
     unawaited(_appStateDb.clearHiddenRecentDownloadIds());

lib/providers/settings_provider.dart

@@ -11,13 +11,11 @@ import 'package:spotiflac_android/utils/logger.dart';
 
 const _settingsKey = 'app_settings';
 const _migrationVersionKey = 'settings_migration_version';
-const _currentMigrationVersion = 6;
+const _currentMigrationVersion = 7;
 const _spotifyClientSecretKey = 'spotify_client_secret';
 final _log = AppLogger('SettingsProvider');
 
 class SettingsNotifier extends Notifier<AppSettings> {
-  static const List<int> _youtubeOpusSupportedBitrates = [128, 256, 320];
-  static const List<int> _youtubeMp3SupportedBitrates = [128, 256, 320];
   static final RegExp _isoRegionPattern = RegExp(r'^[A-Z]{2}$');
 
   final Future<SharedPreferences> _prefs = SharedPreferences.getInstance();
@@ -40,7 +38,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
 
       await _runMigrations(prefs);
       await _normalizeIosDownloadDirectoryIfNeeded();
-      await _normalizeYouTubeBitratesIfNeeded();
       await _normalizeSongLinkRegionIfNeeded();
     }
 
@@ -122,6 +119,10 @@ class SettingsNotifier extends Notifier<AppSettings> {
         );
       }
       state = state.copyWith(lastSeenVersion: AppInfo.version);
+      // Migration 7: YouTube is no longer a built-in service — reset to Tidal
+      if (state.defaultService == 'youtube') {
+        state = state.copyWith(defaultService: 'tidal');
+      }
       await prefs.setInt(_migrationVersionKey, _currentMigrationVersion);
       await _saveSettings();
     }
@@ -153,49 +154,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
     }
   }
 
-  int _nearestSupportedBitrate(int value, List<int> supported) {
-    var nearest = supported.first;
-    var nearestDistance = (value - nearest).abs();
-
-    for (final option in supported.skip(1)) {
-      final distance = (value - option).abs();
-      // On tie, prefer higher quality bitrate.
-      if (distance < nearestDistance ||
-          (distance == nearestDistance && option > nearest)) {
-        nearest = option;
-        nearestDistance = distance;
-      }
-    }
-
-    return nearest;
-  }
-
-  int _normalizeYouTubeOpusBitrate(int bitrate) {
-    return _nearestSupportedBitrate(bitrate, _youtubeOpusSupportedBitrates);
-  }
-
-  int _normalizeYouTubeMp3Bitrate(int bitrate) {
-    return _nearestSupportedBitrate(bitrate, _youtubeMp3SupportedBitrates);
-  }
-
-  Future<void> _normalizeYouTubeBitratesIfNeeded() async {
-    final normalizedOpus = _normalizeYouTubeOpusBitrate(
-      state.youtubeOpusBitrate,
-    );
-    final normalizedMp3 = _normalizeYouTubeMp3Bitrate(state.youtubeMp3Bitrate);
-
-    if (normalizedOpus == state.youtubeOpusBitrate &&
-        normalizedMp3 == state.youtubeMp3Bitrate) {
-      return;
-    }
-
-    state = state.copyWith(
-      youtubeOpusBitrate: normalizedOpus,
-      youtubeMp3Bitrate: normalizedMp3,
-    );
-    await _saveSettings();
-  }
-
   Future<void> _normalizeIosDownloadDirectoryIfNeeded() async {
     if (!Platform.isIOS) return;
 
@@ -469,18 +427,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
     _saveSettings();
   }
 
-  void setYoutubeOpusBitrate(int bitrate) {
-    final normalized = _normalizeYouTubeOpusBitrate(bitrate);
-    state = state.copyWith(youtubeOpusBitrate: normalized);
-    _saveSettings();
-  }
-
-  void setYoutubeMp3Bitrate(int bitrate) {
-    final normalized = _normalizeYouTubeMp3Bitrate(bitrate);
-    state = state.copyWith(youtubeMp3Bitrate: normalized);
-    _saveSettings();
-  }
-
   void setUseAllFilesAccess(bool enabled) {
     state = state.copyWith(useAllFilesAccess: enabled);
     _saveSettings();

lib/providers/store_provider.dart

@@ -12,13 +12,13 @@ const _registryUrlPrefKey = 'store_registry_url';
 int compareVersions(String v1, String v2) {
   final parts1 = v1.replaceAll(_leadingVersionPrefix, '').split('.');
   final parts2 = v2.replaceAll(_leadingVersionPrefix, '').split('.');
-  
+
   final maxLen = parts1.length > parts2.length ? parts1.length : parts2.length;
-  
+
   for (var i = 0; i < maxLen; i++) {
     final n1 = i < parts1.length ? (int.tryParse(parts1[i]) ?? 0) : 0;
     final n2 = i < parts2.length ? (int.tryParse(parts2[i]) ?? 0) : 0;
-    
+
     if (n1 < n2) return -1;
     if (n1 > n2) return 1;
   }
@@ -26,14 +26,19 @@ int compareVersions(String v1, String v2) {
 }
 
 class StoreCategory {
-
   static const String metadata = 'metadata';
   static const String download = 'download';
   static const String utility = 'utility';
   static const String lyrics = 'lyrics';
   static const String integration = 'integration';
 
-  static const List<String> all = [metadata, download, utility, lyrics, integration];
+  static const List<String> all = [
+    metadata,
+    download,
+    utility,
+    lyrics,
+    integration,
+  ];
 
   static String getDisplayName(String category) {
     switch (category) {
@@ -94,7 +99,8 @@ class StoreExtension {
     return StoreExtension(
       id: json['id'] as String? ?? '',
       name: json['name'] as String? ?? '',
-      displayName: json['display_name'] as String? ?? json['name'] as String? ?? '',
+      displayName:
+          json['display_name'] as String? ?? json['name'] as String? ?? '',
       version: json['version'] as String? ?? '0.0.0',
       author: json['author'] as String? ?? 'Unknown',
       description: json['description'] as String? ?? '',
@@ -117,7 +123,6 @@ class StoreExtension {
   }
 }
 
-
 class StoreState {
   final List<StoreExtension> extensions;
   final String? selectedCategory;
@@ -160,11 +165,15 @@ class StoreState {
   }) {
     return StoreState(
       extensions: extensions ?? this.extensions,
-      selectedCategory: clearCategory ? null : (selectedCategory ?? this.selectedCategory),
+      selectedCategory: clearCategory
+          ? null
+          : (selectedCategory ?? this.selectedCategory),
       searchQuery: searchQuery ?? this.searchQuery,
       isLoading: isLoading ?? this.isLoading,
       isDownloading: isDownloading ?? this.isDownloading,
-      downloadingId: clearDownloadingId ? null : (downloadingId ?? this.downloadingId),
+      downloadingId: clearDownloadingId
+          ? null
+          : (downloadingId ?? this.downloadingId),
       error: clearError ? null : (error ?? this.error),
       isInitialized: isInitialized ?? this.isInitialized,
       registryUrl: registryUrl ?? this.registryUrl,
@@ -180,13 +189,16 @@ class StoreState {
 
     if (searchQuery.isNotEmpty) {
       final query = searchQuery.toLowerCase();
-      result = result.where((e) =>
-        e.name.toLowerCase().contains(query) ||
-        e.displayName.toLowerCase().contains(query) ||
-        e.description.toLowerCase().contains(query) ||
-        e.author.toLowerCase().contains(query) ||
-        e.tags.any((t) => t.toLowerCase().contains(query))
-      ).toList();
+      result = result
+          .where(
+            (e) =>
+                e.name.toLowerCase().contains(query) ||
+                e.displayName.toLowerCase().contains(query) ||
+                e.description.toLowerCase().contains(query) ||
+                e.author.toLowerCase().contains(query) ||
+                e.tags.any((t) => t.toLowerCase().contains(query)),
+          )
+          .toList();
     }
 
     return result;
@@ -206,23 +218,28 @@ class StoreNotifier extends Notifier<StoreState> {
   Future<void> initialize(String cacheDir) async {
     if (state.isInitialized) return;
 
-    state = state.copyWith(isLoading: true, clearError: true);
+    // Load saved registry URL early to avoid UI flash (empty → setup screen)
+    final prefs = await SharedPreferences.getInstance();
+    final savedUrl = prefs.getString(_registryUrlPrefKey) ?? '';
+
+    state = state.copyWith(
+      isLoading: true,
+      clearError: true,
+      registryUrl: savedUrl,
+    );
 
     try {
       await PlatformBridge.initExtensionStore(cacheDir);
 
-      // Load saved registry URL from SharedPreferences
-      final prefs = await SharedPreferences.getInstance();
-      final savedUrl = prefs.getString(_registryUrlPrefKey) ?? '';
-
       if (savedUrl.isNotEmpty) {
         await PlatformBridge.setStoreRegistryUrl(savedUrl);
-        state = state.copyWith(registryUrl: savedUrl);
         await refresh();
       }
 
       state = state.copyWith(isInitialized: true, isLoading: false);
-      _log.i('Extension store initialized (registryUrl: ${savedUrl.isEmpty ? "not set" : savedUrl})');
+      _log.i(
+        'Extension store initialized (registryUrl: ${savedUrl.isEmpty ? "not set" : savedUrl})',
+      );
     } catch (e) {
       _log.e('Failed to initialize store: $e');
       state = state.copyWith(isLoading: false, error: e.toString());
@@ -247,13 +264,12 @@ class StoreNotifier extends Notifier<StoreState> {
       // Read back the resolved URL (may differ from input after normalisation).
       final resolvedUrl = await PlatformBridge.getStoreRegistryUrl();
 
-      // Persist to SharedPreferences
       final prefs = await SharedPreferences.getInstance();
       await prefs.setString(_registryUrlPrefKey, resolvedUrl);
 
       state = state.copyWith(
         registryUrl: resolvedUrl,
-        extensions: const [], // Clear old extensions
+        extensions: const [],
       );
 
       _log.i('Registry URL set to: $resolvedUrl');
@@ -292,7 +308,9 @@ class StoreNotifier extends Notifier<StoreState> {
     state = state.copyWith(isLoading: true, clearError: true);
 
     try {
-      final extensions = await PlatformBridge.getStoreExtensions(forceRefresh: forceRefresh);
+      final extensions = await PlatformBridge.getStoreExtensions(
+        forceRefresh: forceRefresh,
+      );
       state = state.copyWith(
         extensions: extensions.map((e) => StoreExtension.fromJson(e)).toList(),
         isLoading: false,
@@ -320,12 +338,23 @@ class StoreNotifier extends Notifier<StoreState> {
     state = state.copyWith(searchQuery: '', clearCategory: true);
   }
 
-  Future<bool> installExtension(String extensionId, String tempDir, String extensionsDir) async {
-    state = state.copyWith(isDownloading: true, downloadingId: extensionId, clearError: true);
+  Future<bool> installExtension(
+    String extensionId,
+    String tempDir,
+    String extensionsDir,
+  ) async {
+    state = state.copyWith(
+      isDownloading: true,
+      downloadingId: extensionId,
+      clearError: true,
+    );
 
     try {
       _log.i('Downloading extension: $extensionId');
-      final downloadPath = await PlatformBridge.downloadStoreExtension(extensionId, tempDir);
+      final downloadPath = await PlatformBridge.downloadStoreExtension(
+        extensionId,
+        tempDir,
+      );
 
       _log.i('Installing extension from: $downloadPath');
       final extNotifier = ref.read(extensionProvider.notifier);
@@ -340,18 +369,28 @@ class StoreNotifier extends Notifier<StoreState> {
       return success;
     } catch (e) {
       _log.e('Failed to install extension: $e');
-      state = state.copyWith(isDownloading: false, clearDownloadingId: true, error: e.toString());
+      state = state.copyWith(
+        isDownloading: false,
+        clearDownloadingId: true,
+        error: e.toString(),
+      );
       return false;
     }
   }
 
-
   Future<bool> updateExtension(String extensionId, String tempDir) async {
-    state = state.copyWith(isDownloading: true, downloadingId: extensionId, clearError: true);
+    state = state.copyWith(
+      isDownloading: true,
+      downloadingId: extensionId,
+      clearError: true,
+    );
 
     try {
       _log.i('Downloading update for: $extensionId');
-      final downloadPath = await PlatformBridge.downloadStoreExtension(extensionId, tempDir);
+      final downloadPath = await PlatformBridge.downloadStoreExtension(
+        extensionId,
+        tempDir,
+      );
 
       _log.i('Upgrading extension from: $downloadPath');
       final extNotifier = ref.read(extensionProvider.notifier);
@@ -366,7 +405,11 @@ class StoreNotifier extends Notifier<StoreState> {
       return success;
     } catch (e) {
       _log.e('Failed to update extension: $e');
-      state = state.copyWith(isDownloading: false, clearDownloadingId: true, error: e.toString());
+      state = state.copyWith(
+        isDownloading: false,
+        clearDownloadingId: true,
+        error: e.toString(),
+      );
       return false;
     }
   }

lib/providers/theme_provider.dart

@@ -57,7 +57,6 @@ class ThemeNotifier extends Notifier<ThemeSettings> {
     await _saveToStorage();
   }
 
-  /// Set custom seed color (used when dynamic color is disabled)
   Future<void> setSeedColor(Color color) async {
     state = state.copyWith(seedColorValue: color.toARGB32());
     await _saveToStorage();
@@ -81,4 +80,3 @@ class ThemeNotifier extends Notifier<ThemeSettings> {
     );
   }
 }
-

lib/providers/track_provider.dart

@@ -18,21 +18,18 @@ class TrackState {
   final String? artistId;
   final String? artistName;
   final String? coverUrl;
-  final String? headerImageUrl; // Artist header image for background
+  final String? headerImageUrl;
   final int? monthlyListeners;
-  final List<ArtistAlbum>? artistAlbums; // For artist page
-  final List<Track>? artistTopTracks; // Artist's popular tracks
-  final List<SearchArtist>? searchArtists; // For search results
-  final List<SearchAlbum>? searchAlbums; // For search results (albums)
-  final List<SearchPlaylist>? searchPlaylists; // For search results (playlists)
-  final bool hasSearchText; // For back button handling
-  final bool isShowingRecentAccess; // For recent access mode
-  final String?
-  searchExtensionId; // Extension ID used for current search results
-  final String?
-  selectedSearchFilter; // Currently selected search filter (e.g., "track", "album", "artist", "playlist")
-  final String?
-  searchSource; // Built-in search provider used for current results (e.g., "deezer", "tidal", "qobuz")
+  final List<ArtistAlbum>? artistAlbums;
+  final List<Track>? artistTopTracks;
+  final List<SearchArtist>? searchArtists;
+  final List<SearchAlbum>? searchAlbums;
+  final List<SearchPlaylist>? searchPlaylists;
+  final bool hasSearchText;
+  final bool isShowingRecentAccess;
+  final String? searchExtensionId;
+  final String? selectedSearchFilter;
+  final String? searchSource;
 
   const TrackState({
     this.tracks = const [],
@@ -127,9 +124,9 @@ class ArtistAlbum {
   final String releaseDate;
   final int totalTracks;
   final String? coverUrl;
-  final String albumType; // album, single, compilation
+  final String albumType;
   final String artists;
-  final String? providerId; // Extension ID if from extension
+  final String? providerId;
 
   const ArtistAlbum({
     required this.id,
@@ -204,7 +201,6 @@ class TrackNotifier extends Notifier<TrackState> {
     return const TrackState();
   }
 
-  /// Check if request is still valid (not cancelled by newer request)
   bool _isRequestValid(int requestId) => requestId == _currentRequestId;
 
   Future<void> fetchFromUrl(String url, {bool useDeezerFallback = true}) async {
@@ -217,7 +213,6 @@ class TrackNotifier extends Notifier<TrackState> {
       if (extensionHandler != null) {
         _log.i('Found extension URL handler: $extensionHandler for URL: $url');
 
-        // Retry logic for extension URL handlers (up to 3 attempts)
         Map<String, dynamic>? result;
         for (int attempt = 1; attempt <= 3; attempt++) {
           result = await PlatformBridge.handleURLWithExtension(url);
@@ -541,7 +536,6 @@ class TrackNotifier extends Notifier<TrackState> {
         return;
       }
 
-      // If URL doesn't match any known service, it's unrecognized
       final isSpotifyUrl =
           url.contains('open.spotify.com') ||
           url.contains('spotify.link') ||
@@ -643,7 +637,6 @@ class TrackNotifier extends Notifier<TrackState> {
   }) async {
     final requestId = ++_currentRequestId;
 
-    // Preserve selected filter during loading
     final currentFilter = filterOverride ?? state.selectedSearchFilter;
 
     state = TrackState(
@@ -662,7 +655,6 @@ class TrackNotifier extends Notifier<TrackState> {
       final includeExtensions =
           settings.useExtensionProviders && hasActiveMetadataExtensions;
 
-      // Determine the effective search provider
       final effectiveProvider = builtInSearchProvider ?? 'deezer';
 
       _log.i(
@@ -672,7 +664,6 @@ class TrackNotifier extends Notifier<TrackState> {
       Map<String, dynamic> results;
       List<Map<String, dynamic>> metadataTrackResults = [];
 
-      // Only use metadata providers for Deezer search (default behavior)
       if (effectiveProvider == 'deezer') {
         try {
           _log.d('Calling metadata provider search API...');
@@ -692,7 +683,6 @@ class TrackNotifier extends Notifier<TrackState> {
         }
       }
 
-      // Call the appropriate search API
       switch (effectiveProvider) {
         case 'tidal':
           _log.d('Calling Tidal search API...');
@@ -808,9 +798,8 @@ class TrackNotifier extends Notifier<TrackState> {
         isLoading: false,
         hasSearchText: state.hasSearchText,
         isShowingRecentAccess: state.isShowingRecentAccess,
-        selectedSearchFilter: currentFilter, // Preserve filter in results
-        searchSource:
-            effectiveProvider, // Track which service was used for search
+        selectedSearchFilter: currentFilter,
+        searchSource: effectiveProvider,
       );
     } catch (e, stackTrace) {
       if (!_isRequestValid(requestId)) return;
@@ -837,7 +826,7 @@ class TrackNotifier extends Notifier<TrackState> {
       hasSearchText: state.hasSearchText,
       isShowingRecentAccess: state.isShowingRecentAccess,
       selectedSearchFilter:
-          state.selectedSearchFilter, // Preserve filter during loading
+          state.selectedSearchFilter,
     );
 
     try {
@@ -876,9 +865,8 @@ class TrackNotifier extends Notifier<TrackState> {
         isLoading: false,
         hasSearchText: state.hasSearchText,
         isShowingRecentAccess: state.isShowingRecentAccess,
-        searchExtensionId: extensionId, // Store which extension was used
-        selectedSearchFilter:
-            state.selectedSearchFilter, // Preserve selected filter
+        searchExtensionId: extensionId,
+        selectedSearchFilter: state.selectedSearchFilter,
       );
     } catch (e, stackTrace) {
       if (!_isRequestValid(requestId)) return;
@@ -934,7 +922,6 @@ class TrackNotifier extends Notifier<TrackState> {
       tracks[index] = updatedTrack;
       state = state.copyWith(tracks: tracks);
     } catch (_) {
-      // Silently ignore update failures - track may have been removed
     }
   }
 
@@ -942,7 +929,6 @@ class TrackNotifier extends Notifier<TrackState> {
     state = const TrackState();
   }
 
-  /// Set selected search filter for extension search
   void setSearchFilter(String? filter) {
     if (state.selectedSearchFilter == filter) return;
     state = state.copyWith(
@@ -951,7 +937,6 @@ class TrackNotifier extends Notifier<TrackState> {
     );
   }
 
-  /// Set search text state for back button handling
   void setSearchText(bool hasText) {
     if (state.hasSearchText == hasText) {
       return;
@@ -966,7 +951,6 @@ class TrackNotifier extends Notifier<TrackState> {
     state = state.copyWith(isShowingRecentAccess: showing);
   }
 
-  /// Set tracks from a collection (album/playlist) opened from search results
   void setTracksFromCollection({
     required List<Track> tracks,
     String? albumName,
@@ -1127,7 +1111,7 @@ class TrackNotifier extends Notifier<TrackState> {
         'isrc': isrc,
         'track_name': track.name,
         'artist_name': track.artistName,
-        'spotify_id': track.id, // Include Spotify ID for Amazon lookup
+        'spotify_id': track.id,
         'service': 'tidal',
       });
       if (cacheRequests.length >= _maxPreWarmTracksPerRequest) {

lib/screens/album_screen.dart

@@ -14,6 +14,7 @@ import 'package:spotiflac_android/utils/file_access.dart';
 import 'package:spotiflac_android/utils/string_utils.dart';
 import 'package:spotiflac_android/widgets/track_collection_quick_actions.dart';
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/providers/library_collections_provider.dart';
 import 'package:spotiflac_android/widgets/playlist_picker_sheet.dart';
 import 'package:spotiflac_android/utils/clickable_metadata.dart';
@@ -241,6 +242,16 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
     );
   }
 
+  String? _recommendedDownloadService() {
+    if (widget.extensionId != null && widget.extensionId!.isNotEmpty) {
+      return widget.extensionId;
+    }
+    if (widget.albumId.startsWith('tidal:')) return 'tidal';
+    if (widget.albumId.startsWith('qobuz:')) return 'qobuz';
+    if (widget.albumId.startsWith('deezer:')) return 'deezer';
+    return null;
+  }
+
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
@@ -257,8 +268,8 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
           if (_isLoading)
             const SliverToBoxAdapter(
               child: Padding(
-                padding: EdgeInsets.all(32),
-                child: Center(child: CircularProgressIndicator()),
+                padding: EdgeInsets.all(16),
+                child: AlbumTrackListSkeleton(itemCount: 10),
               ),
             ),
           if (_error != null)
@@ -534,9 +545,12 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         final track = tracks[index];
         return KeyedSubtree(
           key: ValueKey(track.id),
-          child: _AlbumTrackItem(
-            track: track,
-            onDownload: () => _downloadTrack(context, track),
+          child: StaggeredListItem(
+            index: index,
+            child: _AlbumTrackItem(
+              track: track,
+              onDownload: () => _downloadTrack(context, track),
+            ),
           ),
         );
       }, childCount: tracks.length),
@@ -551,6 +565,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         trackName: track.name,
         artistName: track.artistName,
         coverUrl: track.coverUrl,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           ref
               .read(downloadQueueProvider.notifier)
@@ -576,7 +591,6 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
     final tracks = _tracks;
     if (tracks == null || tracks.isEmpty) return;
 
-    // Skip already-downloaded tracks
     final historyState = ref.read(downloadHistoryProvider);
     final settings = ref.read(settingsProvider);
     final localLibState =
@@ -623,6 +637,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         context,
         trackName: '${tracksToQueue.length} tracks',
         artistName: widget.albumName,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           ref
               .read(downloadQueueProvider.notifier)

lib/screens/artist_screen.dart

@@ -20,6 +20,7 @@ import 'package:spotiflac_android/screens/home_tab.dart'
     show ExtensionAlbumScreen;
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
 import 'package:spotiflac_android/widgets/track_collection_quick_actions.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/utils/clickable_metadata.dart';
 
 class _ArtistCache {
@@ -152,6 +153,16 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     return tileSize + 64 + ((textScale - 1) * 14);
   }
 
+  String? _recommendedDownloadService() {
+    if (widget.extensionId != null && widget.extensionId!.isNotEmpty) {
+      return widget.extensionId;
+    }
+    if (widget.artistId.startsWith('tidal:')) return 'tidal';
+    if (widget.artistId.startsWith('qobuz:')) return 'qobuz';
+    if (widget.artistId.startsWith('deezer:')) return 'deezer';
+    return null;
+  }
+
   @override
   void initState() {
     super.initState();
@@ -481,12 +492,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                   hasDiscography: hasDiscography,
                 ),
                 if (_isLoadingDiscography)
-                  const SliverToBoxAdapter(
-                    child: Padding(
-                      padding: EdgeInsets.all(32),
-                      child: Center(child: CircularProgressIndicator()),
-                    ),
-                  ),
+                  const SliverToBoxAdapter(child: ArtistScreenSkeleton()),
                 if (_error != null)
                   SliverToBoxAdapter(
                     child: Padding(
@@ -889,6 +895,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     if (settings.askQualityBeforeDownload) {
       DownloadServicePicker.show(
         context,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           _fetchAndQueueAlbums(albums, service, quality);
         },
@@ -948,7 +955,6 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
 
       fetchedCount++;
 
-      // Update progress dialog
       if (mounted) {
         _FetchingProgressDialog.updateProgress(
           context,
@@ -979,7 +985,6 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
       return;
     }
 
-    // Check which tracks are already downloaded
     final historyState = ref.read(downloadHistoryProvider);
     final tracksToQueue = <Track>[];
     int skippedCount = 0;
@@ -1030,10 +1035,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
           content: Text(message),
           action: SnackBarAction(
             label: context.l10n.snackbarViewQueue,
-            onPressed: () {
-              // Navigate to queue tab (index 1)
-              // This will be handled by the navigation system
-            },
+            onPressed: () {},
           ),
         ),
       );
@@ -1154,6 +1156,8 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
         imageUrl.isNotEmpty &&
         Uri.tryParse(imageUrl)?.hasAuthority == true;
 
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
     String? listenersText;
     final listeners = _monthlyListeners ?? widget.monthlyListeners;
     if (listeners != null && listeners > 0) {
@@ -1224,7 +1228,9 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                     Colors.transparent,
                     Colors.black.withValues(alpha: 0.3),
                     Colors.black.withValues(alpha: 0.7),
-                    colorScheme.surface,
+                    isDark
+                        ? colorScheme.surface
+                        : Colors.black.withValues(alpha: 0.85),
                   ],
                   stops: const [0.0, 0.5, 0.75, 1.0],
                 ),
@@ -1265,7 +1271,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                             listenersText,
                             style: Theme.of(context).textTheme.bodyMedium
                                 ?.copyWith(
-                                  color: Colors.white.withValues(alpha: 0.8),
+                                  color: Colors.white,
                                   shadows: [
                                     Shadow(
                                       offset: const Offset(0, 1),
@@ -1689,6 +1695,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     if (settings.askQualityBeforeDownload) {
       DownloadServicePicker.show(
         context,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           if (!mounted) return;
           enqueue(service, quality: quality);
@@ -1839,29 +1846,14 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                     Positioned(
                       top: 8,
                       right: 8,
-                      child: AnimatedContainer(
-                        duration: const Duration(milliseconds: 200),
-                        width: 28,
-                        height: 28,
-                        decoration: BoxDecoration(
-                          color: isSelected
-                              ? colorScheme.primary
-                              : colorScheme.surface.withValues(alpha: 0.9),
-                          shape: BoxShape.circle,
-                          border: Border.all(
-                            color: isSelected
-                                ? colorScheme.primary
-                                : colorScheme.outline,
-                            width: 2,
-                          ),
+                      child: AnimatedSelectionCheckbox(
+                        visible: true,
+                        selected: isSelected,
+                        colorScheme: colorScheme,
+                        size: 28,
+                        unselectedColor: colorScheme.surface.withValues(
+                          alpha: 0.9,
                         ),
-                        child: isSelected
-                            ? Icon(
-                                Icons.check,
-                                color: colorScheme.onPrimary,
-                                size: 18,
-                              )
-                            : null,
                       ),
                     ),
                   if (showTypeBadge)
@@ -2070,7 +2062,6 @@ class _FetchingProgressDialog extends StatefulWidget {
     required this.onCancel,
   });
 
-  // Static method to update progress from outside
   static void updateProgress(BuildContext context, int current, int total) {
     final state = context
         .findAncestorStateOfType<_FetchingProgressDialogState>();
@@ -2143,7 +2134,6 @@ class _FetchingProgressDialogState extends State<_FetchingProgressDialog> {
             ),
           ),
           const SizedBox(height: 8),
-          // Progress bar
           ClipRRect(
             borderRadius: BorderRadius.circular(4),
             child: LinearProgressIndicator(

lib/screens/downloaded_album_screen.dart

@@ -17,6 +17,7 @@ import 'package:spotiflac_android/providers/playback_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/screens/track_metadata_screen.dart';
 import 'package:spotiflac_android/services/downloaded_embedded_cover_resolver.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 
 class DownloadedAlbumScreen extends ConsumerStatefulWidget {
   final String albumName;
@@ -120,7 +121,6 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
 
     final tracks =
         allItems.where((item) {
-          // Use albumArtist if available and not empty, otherwise artistName
           final itemArtist =
               (item.albumArtist != null && item.albumArtist!.isNotEmpty)
               ? item.albumArtist!
@@ -129,7 +129,6 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
               '${item.albumName.toLowerCase()}|${itemArtist.toLowerCase()}';
           return itemKey == _albumLookupKey;
         }).toList()..sort((a, b) {
-          // Sort by disc number first, then by track number
           final aDisc = a.discNumber ?? 1;
           final bDisc = b.discNumber ?? 1;
           if (aDisc != bDisc) return aDisc.compareTo(bDisc);
@@ -310,14 +309,7 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
     if (!mounted) return;
 
     final result = await navigator.push(
-      PageRouteBuilder(
-        transitionDuration: const Duration(milliseconds: 300),
-        reverseTransitionDuration: const Duration(milliseconds: 250),
-        pageBuilder: (context, animation, secondaryAnimation) =>
-            TrackMetadataScreen(item: item),
-        transitionsBuilder: (context, animation, secondaryAnimation, child) =>
-            FadeTransition(opacity: animation, child: child),
-      ),
+      slidePageRoute(page: TrackMetadataScreen(item: item)),
     );
     await DownloadedEmbeddedCoverResolver.scheduleRefreshForPath(
       item.filePath,
@@ -693,7 +685,10 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
           final track = tracks[index];
           return KeyedSubtree(
             key: ValueKey(track.id),
-            child: _buildTrackItem(context, colorScheme, track),
+            child: StaggeredListItem(
+              index: index,
+              child: _buildTrackItem(context, colorScheme, track),
+            ),
           );
         }, childCount: tracks.length),
       );
@@ -701,6 +696,7 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
 
     final discNumbers = _getSortedDiscNumbers(tracks);
     final List<Widget> children = [];
+    var revealIndex = 0;
 
     for (final discNumber in discNumbers) {
       final discTracks = discMap[discNumber];
@@ -712,7 +708,10 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
         children.add(
           KeyedSubtree(
             key: ValueKey(track.id),
-            child: _buildTrackItem(context, colorScheme, track),
+            child: StaggeredListItem(
+              index: revealIndex++,
+              child: _buildTrackItem(context, colorScheme, track),
+            ),
           ),
         );
       }
@@ -796,28 +795,11 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
             mainAxisSize: MainAxisSize.min,
             children: [
               if (_isSelectionMode) ...[
-                Container(
-                  width: 24,
-                  height: 24,
-                  decoration: BoxDecoration(
-                    color: isSelected
-                        ? colorScheme.primary
-                        : Colors.transparent,
-                    shape: BoxShape.circle,
-                    border: Border.all(
-                      color: isSelected
-                          ? colorScheme.primary
-                          : colorScheme.outline,
-                      width: 2,
-                    ),
-                  ),
-                  child: isSelected
-                      ? Icon(
-                          Icons.check,
-                          color: colorScheme.onPrimary,
-                          size: 16,
-                        )
-                      : null,
+                AnimatedSelectionCheckbox(
+                  visible: true,
+                  selected: isSelected,
+                  colorScheme: colorScheme,
+                  size: 24,
                 ),
                 const SizedBox(width: 12),
               ],
@@ -1123,7 +1105,6 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
           ? 'Opus'
           : null;
       if (ext == null || ext == targetFormat) continue;
-      // Skip lossy sources when target is lossless (pointless re-encoding)
       final isLosslessTarget = targetFormat == 'ALAC' || targetFormat == 'FLAC';
       final isLosslessSource = ext == 'FLAC' || ext == 'M4A';
       if (isLosslessTarget && !isLosslessSource) continue;

lib/screens/home_tab.dart

@@ -28,6 +28,7 @@ import 'package:spotiflac_android/screens/playlist_screen.dart';
 import 'package:spotiflac_android/screens/downloaded_album_screen.dart';
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
 import 'package:spotiflac_android/widgets/track_collection_quick_actions.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/utils/clickable_metadata.dart';
 
 class HomeTab extends ConsumerStatefulWidget {
@@ -83,6 +84,18 @@ class _SearchResultBuckets {
   });
 }
 
+enum _SearchSortOption {
+  defaultOrder,
+  titleAsc,
+  titleDesc,
+  artistAsc,
+  artistDesc,
+  durationAsc,
+  durationDesc,
+  dateAsc,
+  dateDesc,
+}
+
 const _homeHistoryPreviewLimit = 48;
 
 class _HomeHistoryPreview {
@@ -244,6 +257,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
   Map<String, (double, double)>? _thumbnailSizesCache;
   List<Track>? _searchBucketsSourceTracks;
   _SearchResultBuckets? _searchBucketsCache;
+  _SearchSortOption _searchSortOption = _SearchSortOption.defaultOrder;
 
   double _responsiveScale({
     required BuildContext context,
@@ -280,13 +294,13 @@ class _HomeTabState extends ConsumerState<HomeTab>
   double _exploreCardSize(BuildContext context) {
     final scale = _responsiveScale(context: context, min: 0.82, max: 1.08);
     final textScale = _effectiveTextScale(context);
-    return 120 * scale * (1 + (textScale - 1) * 0.12);
+    return 145 * scale * (1 + (textScale - 1) * 0.12);
   }
 
   double _exploreSectionHeight(BuildContext context) {
     final cardSize = _exploreCardSize(context);
     final textScale = _effectiveTextScale(context);
-    return cardSize + 55 + ((textScale - 1) * 12);
+    return cardSize + 58 + ((textScale - 1) * 12);
   }
 
   @override
@@ -564,6 +578,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
         '${searchProvider ?? 'default'}:$query:${selectedFilter ?? 'all'}';
     if (_lastSearchQuery == searchKey) return;
     _lastSearchQuery = searchKey;
+    _searchSortOption = _SearchSortOption.defaultOrder;
 
     final isBuiltInProvider =
         searchProvider != null &&
@@ -698,6 +713,8 @@ class _HomeTabState extends ConsumerState<HomeTab>
             playlistName: trackState.playlistName!,
             coverUrl: trackState.coverUrl,
             tracks: trackState.tracks,
+            recommendedService:
+                trackState.searchExtensionId ?? trackState.searchSource,
           ),
         ),
       );
@@ -1281,8 +1298,8 @@ class _HomeTabState extends ConsumerState<HomeTab>
                   exploreLoading)
                 const SliverToBoxAdapter(
                   child: Padding(
-                    padding: EdgeInsets.all(32),
-                    child: Center(child: CircularProgressIndicator()),
+                    padding: EdgeInsets.all(16),
+                    child: TrackListSkeleton(itemCount: 5),
                   ),
                 ),
 
@@ -1485,7 +1502,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
         delegate: SliverChildBuilderDelegate((context, index) {
           if (hasGreeting && index == 0) {
             return Padding(
-              padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
+              padding: const EdgeInsets.fromLTRB(16, 12, 16, 4),
               child: Text(
                 greeting,
                 style: Theme.of(context).textTheme.headlineSmall?.copyWith(
@@ -1500,7 +1517,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
             return _buildExploreSection(sections[sectionIndex], colorScheme);
           }
 
-          return const SizedBox(height: 16);
+          return const SizedBox(height: 24);
         }, childCount: totalCount),
       ),
     ];
@@ -1516,7 +1533,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         Padding(
-          padding: const EdgeInsets.fromLTRB(16, 16, 16, 12),
+          padding: const EdgeInsets.fromLTRB(16, 20, 16, 12),
           child: Text(
             section.title,
             style: Theme.of(
@@ -1532,7 +1549,11 @@ class _HomeTabState extends ConsumerState<HomeTab>
             itemCount: section.items.length,
             itemBuilder: (context, index) {
               final item = section.items[index];
-              return _buildExploreItem(item, colorScheme);
+              return StaggeredListItem(
+                index: index,
+                staggerDelay: const Duration(milliseconds: 50),
+                child: _buildExploreItem(item, colorScheme),
+              );
             },
           ),
         ),
@@ -1579,7 +1600,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
               children: [
                 ClipRRect(
                   borderRadius: BorderRadius.circular(
-                    isArtist ? cardSize / 2 : 8,
+                    isArtist ? cardSize / 2 : 10,
                   ),
                   child: item.coverUrl != null && item.coverUrl!.isNotEmpty
                       ? CachedNetworkImage(
@@ -1618,8 +1639,8 @@ class _HomeTabState extends ConsumerState<HomeTab>
                   maxLines: 1,
                   overflow: TextOverflow.ellipsis,
                   textAlign: isArtist ? TextAlign.center : TextAlign.start,
-                  style: Theme.of(context).textTheme.bodySmall?.copyWith(
-                    fontWeight: FontWeight.w500,
+                  style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    fontWeight: FontWeight.w600,
                     color: colorScheme.onSurface,
                   ),
                 ),
@@ -1632,7 +1653,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
                     overflow: TextOverflow.ellipsis,
                     style: Theme.of(context).textTheme.bodySmall?.copyWith(
                       color: colorScheme.onSurfaceVariant,
-                      fontSize: 11,
+                      fontSize: 12,
                     ),
                   ),
               ],
@@ -2122,7 +2143,9 @@ class _HomeTabState extends ConsumerState<HomeTab>
         if (item.providerId != null &&
             item.providerId!.isNotEmpty &&
             item.providerId != 'deezer' &&
-            item.providerId != 'spotify') {
+            item.providerId != 'spotify' &&
+            item.providerId != 'tidal' &&
+            item.providerId != 'qobuz') {
           Navigator.push(
             context,
             MaterialPageRoute(
@@ -2162,7 +2185,9 @@ class _HomeTabState extends ConsumerState<HomeTab>
         } else if (item.providerId != null &&
             item.providerId!.isNotEmpty &&
             item.providerId != 'deezer' &&
-            item.providerId != 'spotify') {
+            item.providerId != 'spotify' &&
+            item.providerId != 'tidal' &&
+            item.providerId != 'qobuz') {
           Navigator.push(
             context,
             MaterialPageRoute(
@@ -2210,7 +2235,9 @@ class _HomeTabState extends ConsumerState<HomeTab>
         if (item.providerId != null &&
             item.providerId!.isNotEmpty &&
             item.providerId != 'deezer' &&
-            item.providerId != 'spotify') {
+            item.providerId != 'spotify' &&
+            item.providerId != 'tidal' &&
+            item.providerId != 'qobuz') {
           Navigator.push(
             context,
             MaterialPageRoute(
@@ -2248,14 +2275,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
         );
     if (!mounted) return;
     final result = await navigator.push(
-      PageRouteBuilder(
-        transitionDuration: const Duration(milliseconds: 300),
-        reverseTransitionDuration: const Duration(milliseconds: 250),
-        pageBuilder: (context, animation, secondaryAnimation) =>
-            TrackMetadataScreen(item: item),
-        transitionsBuilder: (context, animation, secondaryAnimation, child) =>
-            FadeTransition(opacity: animation, child: child),
-      ),
+      slidePageRoute(page: TrackMetadataScreen(item: item)),
     );
     await DownloadedEmbeddedCoverResolver.scheduleRefreshForPath(
       item.filePath,
@@ -2393,6 +2413,168 @@ class _HomeTabState extends ConsumerState<HomeTab>
     );
   }
 
+  // ── Search result sorting ──────────────────────────────────────────────
+
+  String _sortOptionLabel(_SearchSortOption option) {
+    switch (option) {
+      case _SearchSortOption.defaultOrder:
+        return context.l10n.searchSortDefault;
+      case _SearchSortOption.titleAsc:
+        return context.l10n.searchSortTitleAZ;
+      case _SearchSortOption.titleDesc:
+        return context.l10n.searchSortTitleZA;
+      case _SearchSortOption.artistAsc:
+        return context.l10n.searchSortArtistAZ;
+      case _SearchSortOption.artistDesc:
+        return context.l10n.searchSortArtistZA;
+      case _SearchSortOption.durationAsc:
+        return context.l10n.searchSortDurationShort;
+      case _SearchSortOption.durationDesc:
+        return context.l10n.searchSortDurationLong;
+      case _SearchSortOption.dateAsc:
+        return context.l10n.searchSortDateOldest;
+      case _SearchSortOption.dateDesc:
+        return context.l10n.searchSortDateNewest;
+    }
+  }
+
+  void _showSortOptions(ColorScheme colorScheme) {
+    var tempSort = _searchSortOption;
+    showModalBottomSheet<void>(
+      context: context,
+      useRootNavigator: true,
+      isScrollControlled: true,
+      backgroundColor: colorScheme.surfaceContainerLow,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(28)),
+      ),
+      builder: (ctx) => StatefulBuilder(
+        builder: (ctx, setSheetState) {
+          return SafeArea(
+            child: Padding(
+              padding: const EdgeInsets.fromLTRB(16, 8, 16, 16),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Center(
+                    child: Container(
+                      width: 32,
+                      height: 4,
+                      margin: const EdgeInsets.only(bottom: 16),
+                      decoration: BoxDecoration(
+                        color: colorScheme.outlineVariant,
+                        borderRadius: BorderRadius.circular(2),
+                      ),
+                    ),
+                  ),
+                  Row(
+                    children: [
+                      Text(
+                        context.l10n.searchSortTitle,
+                        style: Theme.of(context).textTheme.titleLarge?.copyWith(
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const Spacer(),
+                      TextButton(
+                        onPressed: () => setSheetState(
+                          () => tempSort = _SearchSortOption.defaultOrder,
+                        ),
+                        child: Text(context.l10n.libraryFilterReset),
+                      ),
+                    ],
+                  ),
+                  const SizedBox(height: 16),
+                  Wrap(
+                    spacing: 8,
+                    runSpacing: 8,
+                    children: _SearchSortOption.values.map((option) {
+                      return FilterChip(
+                        label: Text(_sortOptionLabel(option)),
+                        selected: tempSort == option,
+                        showCheckmark: false,
+                        onSelected: (_) =>
+                            setSheetState(() => tempSort = option),
+                      );
+                    }).toList(),
+                  ),
+                  const SizedBox(height: 24),
+                  SizedBox(
+                    width: double.infinity,
+                    child: FilledButton(
+                      onPressed: () {
+                        Navigator.pop(ctx);
+                        if (_searchSortOption != tempSort) {
+                          setState(() {
+                            _searchSortOption = tempSort;
+                          });
+                        }
+                      },
+                      child: Text(context.l10n.libraryFilterApply),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  List<T> _applySortToList<T>(
+    List<T> items,
+    String Function(T) getName,
+    String Function(T) getArtist,
+    int Function(T) getDuration,
+    String? Function(T) getDate,
+  ) {
+    if (_searchSortOption == _SearchSortOption.defaultOrder) return items;
+    final sorted = List<T>.of(items);
+    switch (_searchSortOption) {
+      case _SearchSortOption.defaultOrder:
+        break;
+      case _SearchSortOption.titleAsc:
+        sorted.sort(
+          (a, b) =>
+              getName(a).toLowerCase().compareTo(getName(b).toLowerCase()),
+        );
+      case _SearchSortOption.titleDesc:
+        sorted.sort(
+          (a, b) =>
+              getName(b).toLowerCase().compareTo(getName(a).toLowerCase()),
+        );
+      case _SearchSortOption.artistAsc:
+        sorted.sort(
+          (a, b) =>
+              getArtist(a).toLowerCase().compareTo(getArtist(b).toLowerCase()),
+        );
+      case _SearchSortOption.artistDesc:
+        sorted.sort(
+          (a, b) =>
+              getArtist(b).toLowerCase().compareTo(getArtist(a).toLowerCase()),
+        );
+      case _SearchSortOption.durationAsc:
+        sorted.sort((a, b) => getDuration(a).compareTo(getDuration(b)));
+      case _SearchSortOption.durationDesc:
+        sorted.sort((a, b) => getDuration(b).compareTo(getDuration(a)));
+      case _SearchSortOption.dateAsc:
+        sorted.sort((a, b) {
+          final da = getDate(a) ?? '';
+          final db = getDate(b) ?? '';
+          return da.compareTo(db);
+        });
+      case _SearchSortOption.dateDesc:
+        sorted.sort((a, b) {
+          final da = getDate(a) ?? '';
+          final db = getDate(b) ?? '';
+          return db.compareTo(da);
+        });
+    }
+    return sorted;
+  }
+
   List<Widget> _buildSearchResults({
     required List<Track> tracks,
     required List<SearchArtist>? searchArtists,
@@ -2406,6 +2588,15 @@ class _HomeTabState extends ConsumerState<HomeTab>
     required bool showLocalLibraryIndicator,
     required Map<String, (double, double)> thumbnailSizesByExtensionId,
   }) {
+    final hasActualData =
+        tracks.isNotEmpty ||
+        (searchArtists != null && searchArtists.isNotEmpty) ||
+        (searchAlbums != null && searchAlbums.isNotEmpty) ||
+        (searchPlaylists != null && searchPlaylists.isNotEmpty);
+
+    if (!hasActualData && isLoading) {
+      return [const SliverToBoxAdapter(child: HomeSearchSkeleton())];
+    }
     if (!hasResults) {
       return [const SliverToBoxAdapter(child: SizedBox.shrink())];
     }
@@ -2417,6 +2608,59 @@ class _HomeTabState extends ConsumerState<HomeTab>
     final playlistItems = buckets.playlistItems;
     final artistItems = buckets.artistItems;
 
+    final sortedArtists = searchArtists != null && searchArtists.isNotEmpty
+        ? _applySortToList<SearchArtist>(
+            searchArtists,
+            (a) => a.name,
+            (a) => a.name,
+            (a) => 0,
+            (a) => null,
+          )
+        : searchArtists;
+
+    final sortedAlbums = searchAlbums != null && searchAlbums.isNotEmpty
+        ? _applySortToList<SearchAlbum>(
+            searchAlbums,
+            (a) => a.name,
+            (a) => a.artists,
+            (a) => 0,
+            (a) => a.releaseDate,
+          )
+        : searchAlbums;
+
+    final sortedPlaylists =
+        searchPlaylists != null && searchPlaylists.isNotEmpty
+        ? _applySortToList<SearchPlaylist>(
+            searchPlaylists,
+            (p) => p.name,
+            (p) => p.owner,
+            (p) => 0,
+            (p) => null,
+          )
+        : searchPlaylists;
+
+    List<Track> sortedTracks;
+    List<int> sortedTrackIndexes;
+    if (realTracks.isNotEmpty &&
+        _searchSortOption != _SearchSortOption.defaultOrder) {
+      final paired = List.generate(
+        realTracks.length,
+        (i) => (realTracks[i], realTrackIndexes[i]),
+      );
+      final sortedPairs = _applySortToList<(Track, int)>(
+        paired,
+        (p) => p.$1.name,
+        (p) => p.$1.artistName,
+        (p) => p.$1.duration,
+        (p) => p.$1.releaseDate,
+      );
+      sortedTracks = sortedPairs.map((p) => p.$1).toList();
+      sortedTrackIndexes = sortedPairs.map((p) => p.$2).toList();
+    } else {
+      sortedTracks = realTracks;
+      sortedTrackIndexes = realTrackIndexes;
+    }
+
     final slivers = <Widget>[
       if (error != null)
         SliverToBoxAdapter(
@@ -2434,24 +2678,28 @@ class _HomeTabState extends ConsumerState<HomeTab>
         ),
     ];
 
-    if (searchArtists != null && searchArtists.isNotEmpty) {
+    bool sortButtonShown = false;
+
+    if (sortedArtists != null && sortedArtists.isNotEmpty) {
       slivers.addAll(
         _buildVirtualizedResultSection(
           title: context.l10n.searchArtists,
-          itemCount: searchArtists.length,
+          itemCount: sortedArtists.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _SearchArtistItemWidget(
-            key: ValueKey('search-artist-${searchArtists[index].id}'),
-            artist: searchArtists[index],
+            key: ValueKey('search-artist-${sortedArtists[index].id}'),
+            artist: sortedArtists[index],
             showDivider: showDivider,
             onTap: () => _navigateToArtist(
-              searchArtists[index].id,
-              searchArtists[index].name,
-              searchArtists[index].imageUrl,
+              sortedArtists[index].id,
+              sortedArtists[index].name,
+              sortedArtists[index].imageUrl,
             ),
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
     if (artistItems.isNotEmpty) {
@@ -2460,6 +2708,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
           title: context.l10n.searchArtists,
           itemCount: artistItems.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _CollectionItemWidget(
             key: ValueKey('artist-${artistItems[index].id}'),
             item: artistItems[index],
@@ -2468,22 +2717,25 @@ class _HomeTabState extends ConsumerState<HomeTab>
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
-    if (searchAlbums != null && searchAlbums.isNotEmpty) {
+    if (sortedAlbums != null && sortedAlbums.isNotEmpty) {
       slivers.addAll(
         _buildVirtualizedResultSection(
           title: context.l10n.searchAlbums,
-          itemCount: searchAlbums.length,
+          itemCount: sortedAlbums.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _SearchAlbumItemWidget(
-            key: ValueKey('search-album-${searchAlbums[index].id}'),
-            album: searchAlbums[index],
+            key: ValueKey('search-album-${sortedAlbums[index].id}'),
+            album: sortedAlbums[index],
             showDivider: showDivider,
-            onTap: () => _navigateToSearchAlbum(searchAlbums[index]),
+            onTap: () => _navigateToSearchAlbum(sortedAlbums[index]),
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
     if (albumItems.isNotEmpty) {
@@ -2492,6 +2744,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
           title: context.l10n.searchAlbums,
           itemCount: albumItems.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _CollectionItemWidget(
             key: ValueKey('album-${albumItems[index].id}'),
             item: albumItems[index],
@@ -2500,22 +2753,25 @@ class _HomeTabState extends ConsumerState<HomeTab>
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
-    if (searchPlaylists != null && searchPlaylists.isNotEmpty) {
+    if (sortedPlaylists != null && sortedPlaylists.isNotEmpty) {
       slivers.addAll(
         _buildVirtualizedResultSection(
           title: context.l10n.searchPlaylists,
-          itemCount: searchPlaylists.length,
+          itemCount: sortedPlaylists.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _SearchPlaylistItemWidget(
-            key: ValueKey('search-playlist-${searchPlaylists[index].id}'),
-            playlist: searchPlaylists[index],
+            key: ValueKey('search-playlist-${sortedPlaylists[index].id}'),
+            playlist: sortedPlaylists[index],
             showDivider: showDivider,
-            onTap: () => _navigateToSearchPlaylist(searchPlaylists[index]),
+            onTap: () => _navigateToSearchPlaylist(sortedPlaylists[index]),
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
     if (playlistItems.isNotEmpty) {
@@ -2524,6 +2780,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
           title: context.l10n.searchPlaylists,
           itemCount: playlistItems.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _CollectionItemWidget(
             key: ValueKey('playlist-${playlistItems[index].id}'),
             item: playlistItems[index],
@@ -2532,20 +2789,22 @@ class _HomeTabState extends ConsumerState<HomeTab>
           ),
         ),
       );
+      sortButtonShown = true;
     }
 
-    if (realTracks.isNotEmpty) {
+    if (sortedTracks.isNotEmpty) {
       slivers.addAll(
         _buildVirtualizedResultSection(
           title: context.l10n.searchSongs,
-          itemCount: realTracks.length,
+          itemCount: sortedTracks.length,
           colorScheme: colorScheme,
+          showSortButton: !sortButtonShown,
           itemBuilder: (index, showDivider) => _TrackItemWithStatus(
-            key: ValueKey(realTracks[index].id),
-            track: realTracks[index],
-            index: realTrackIndexes[index],
+            key: ValueKey(sortedTracks[index].id),
+            track: sortedTracks[index],
+            index: sortedTrackIndexes[index],
             showDivider: showDivider,
-            onDownload: () => _downloadTrack(realTrackIndexes[index]),
+            onDownload: () => _downloadTrack(sortedTrackIndexes[index]),
             searchExtensionId: searchExtensionId,
             showLocalLibraryIndicator: showLocalLibraryIndicator,
             thumbnailSizesByExtensionId: thumbnailSizesByExtensionId,
@@ -2563,6 +2822,7 @@ class _HomeTabState extends ConsumerState<HomeTab>
     required int itemCount,
     required ColorScheme colorScheme,
     required Widget Function(int index, bool showDivider) itemBuilder,
+    bool showSortButton = false,
   }) {
     final sectionColor = Theme.of(context).brightness == Brightness.dark
         ? Color.alphaBlend(
@@ -2574,12 +2834,47 @@ class _HomeTabState extends ConsumerState<HomeTab>
     return [
       SliverToBoxAdapter(
         child: Padding(
-          padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
-          child: Text(
-            title,
-            style: Theme.of(context).textTheme.titleSmall?.copyWith(
-              color: colorScheme.onSurfaceVariant,
-            ),
+          padding: const EdgeInsets.fromLTRB(16, 8, 8, 8),
+          child: Row(
+            children: [
+              Expanded(
+                child: Text(
+                  title,
+                  style: Theme.of(context).textTheme.titleSmall?.copyWith(
+                    color: colorScheme.onSurfaceVariant,
+                  ),
+                ),
+              ),
+              if (showSortButton)
+                SizedBox(
+                  height: 32,
+                  child: TextButton.icon(
+                    onPressed: () => _showSortOptions(colorScheme),
+                    icon: Icon(
+                      Icons.swap_vert,
+                      size: 18,
+                      color: _searchSortOption != _SearchSortOption.defaultOrder
+                          ? colorScheme.primary
+                          : colorScheme.onSurfaceVariant,
+                    ),
+                    label: Text(
+                      _searchSortOption != _SearchSortOption.defaultOrder
+                          ? _sortOptionLabel(_searchSortOption)
+                          : context.l10n.libraryFilterSort,
+                      style: Theme.of(context).textTheme.labelSmall?.copyWith(
+                        color:
+                            _searchSortOption != _SearchSortOption.defaultOrder
+                            ? colorScheme.primary
+                            : colorScheme.onSurfaceVariant,
+                      ),
+                    ),
+                    style: TextButton.styleFrom(
+                      padding: const EdgeInsets.symmetric(horizontal: 8),
+                      visualDensity: VisualDensity.compact,
+                    ),
+                  ),
+                ),
+            ],
           ),
         ),
       ),
@@ -2587,19 +2882,22 @@ class _HomeTabState extends ConsumerState<HomeTab>
         delegate: SliverChildBuilderDelegate((context, index) {
           final isFirst = index == 0;
           final isLast = index == itemCount - 1;
-          return Container(
-            margin: const EdgeInsets.symmetric(horizontal: 16),
-            decoration: BoxDecoration(
-              color: sectionColor,
-              borderRadius: BorderRadius.vertical(
-                top: isFirst ? const Radius.circular(20) : Radius.zero,
-                bottom: isLast ? const Radius.circular(20) : Radius.zero,
+          return StaggeredListItem(
+            index: index,
+            child: Container(
+              margin: const EdgeInsets.symmetric(horizontal: 16),
+              decoration: BoxDecoration(
+                color: sectionColor,
+                borderRadius: BorderRadius.vertical(
+                  top: isFirst ? const Radius.circular(20) : Radius.zero,
+                  bottom: isLast ? const Radius.circular(20) : Radius.zero,
+                ),
+              ),
+              clipBehavior: Clip.antiAlias,
+              child: Material(
+                color: Colors.transparent,
+                child: itemBuilder(index, !isLast),
               ),
-            ),
-            clipBehavior: Clip.antiAlias,
-            child: Material(
-              color: Colors.transparent,
-              child: itemBuilder(index, !isLast),
             ),
           );
         }, childCount: itemCount),
@@ -2793,7 +3091,6 @@ class _HomeTabState extends ConsumerState<HomeTab>
     }
 
     if (searchProvider != null && searchProvider.isNotEmpty) {
-      // Check built-in providers first
       if (searchProvider == 'tidal') {
         return 'Search with Tidal...';
       }
@@ -2835,16 +3132,6 @@ class _HomeTabState extends ConsumerState<HomeTab>
                   _triggerSearchWithFilter(null);
                 },
                 showCheckmark: false,
-                selectedColor: colorScheme.primaryContainer,
-                backgroundColor: colorScheme.surfaceContainerHighest,
-                labelStyle: TextStyle(
-                  color: selectedFilter == null
-                      ? colorScheme.onPrimaryContainer
-                      : colorScheme.onSurfaceVariant,
-                  fontWeight: selectedFilter == null
-                      ? FontWeight.w600
-                      : FontWeight.normal,
-                ),
               ),
             ),
             ...filters.map((filter) {
@@ -2859,24 +3146,8 @@ class _HomeTabState extends ConsumerState<HomeTab>
                     _triggerSearchWithFilter(filter.id);
                   },
                   showCheckmark: false,
-                  selectedColor: colorScheme.primaryContainer,
-                  backgroundColor: colorScheme.surfaceContainerHighest,
-                  labelStyle: TextStyle(
-                    color: isSelected
-                        ? colorScheme.onPrimaryContainer
-                        : colorScheme.onSurfaceVariant,
-                    fontWeight: isSelected
-                        ? FontWeight.w600
-                        : FontWeight.normal,
-                  ),
                   avatar: filter.icon != null
-                      ? Icon(
-                          _getFilterIcon(filter.icon!),
-                          size: 18,
-                          color: isSelected
-                              ? colorScheme.onPrimaryContainer
-                              : colorScheme.onSurfaceVariant,
-                        )
+                      ? Icon(_getFilterIcon(filter.icon!), size: 18)
                       : null,
                 ),
               );
@@ -2913,7 +3184,6 @@ class _HomeTabState extends ConsumerState<HomeTab>
     if (text.isEmpty || text.length < _minLiveSearchChars) return;
     if (text.startsWith('http') || text.startsWith('spotify:')) return;
 
-    // Reset last search query to force new search
     _lastSearchQuery = null;
     _performSearch(text, filterOverride: filter);
   }
@@ -2931,15 +3201,11 @@ class _HomeTabState extends ConsumerState<HomeTab>
         fillColor: colorScheme.surfaceContainerHighest,
         border: OutlineInputBorder(
           borderRadius: BorderRadius.circular(28),
-          borderSide: BorderSide(
-            color: colorScheme.outline.withValues(alpha: 0.5),
-          ),
+          borderSide: BorderSide(color: colorScheme.outlineVariant),
         ),
         enabledBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(28),
-          borderSide: BorderSide(
-            color: colorScheme.outline.withValues(alpha: 0.5),
-          ),
+          borderSide: BorderSide(color: colorScheme.outlineVariant),
         ),
         focusedBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(28),
@@ -2987,6 +3253,9 @@ class _HomeTabState extends ConsumerState<HomeTab>
         ),
       ),
       onSubmitted: (_) => _onSearchSubmitted(),
+      onTapOutside: (_) {
+        FocusScope.of(context).unfocus();
+      },
     );
   }
 
@@ -3035,7 +3304,6 @@ class _SearchProviderDropdown extends ConsumerWidget {
           .firstOrNull;
     }
 
-    // Check if current provider is a built-in provider (tidal/qobuz)
     const builtInProviders = {'tidal', 'qobuz'};
     final isBuiltInProvider =
         currentProvider != null && builtInProviders.contains(currentProvider);
@@ -3115,7 +3383,6 @@ class _SearchProviderDropdown extends ConsumerWidget {
               ],
             ),
           ),
-          // Built-in Tidal search option
           PopupMenuItem<String>(
             value: 'tidal',
             child: Row(
@@ -3143,7 +3410,6 @@ class _SearchProviderDropdown extends ConsumerWidget {
               ],
             ),
           ),
-          // Built-in Qobuz search option
           PopupMenuItem<String>(
             value: 'qobuz',
             child: Row(
@@ -3966,7 +4232,6 @@ class _ExtensionAlbumScreenState extends ConsumerState<ExtensionAlbumScreen> {
           .map((t) => _parseTrack(t as Map<String, dynamic>))
           .toList();
 
-      // Extract artist info from album response
       final artistId = (result['artist_id'] ?? result['artistId'])?.toString();
       final artistName = result['artists'] as String?;
 
@@ -4024,7 +4289,10 @@ class _ExtensionAlbumScreenState extends ConsumerState<ExtensionAlbumScreen> {
     if (_isLoading) {
       return Scaffold(
         appBar: AppBar(title: Text(widget.albumName)),
-        body: const Center(child: CircularProgressIndicator()),
+        body: const AlbumTrackListSkeleton(
+          itemCount: 10,
+          showCoverHeader: true,
+        ),
       );
     }
 
@@ -4178,7 +4446,7 @@ class _ExtensionPlaylistScreenState
     if (_isLoading) {
       return Scaffold(
         appBar: AppBar(title: Text(widget.playlistName)),
-        body: const Center(child: CircularProgressIndicator()),
+        body: const TrackListSkeleton(itemCount: 8, showCoverHeader: true),
       );
     }
 
@@ -4208,6 +4476,7 @@ class _ExtensionPlaylistScreenState
       playlistName: widget.playlistName,
       coverUrl: widget.coverUrl,
       tracks: _tracks!,
+      recommendedService: widget.extensionId,
     );
   }
 }
@@ -4349,7 +4618,7 @@ class _ExtensionArtistScreenState extends ConsumerState<ExtensionArtistScreen> {
     if (_isLoading) {
       return Scaffold(
         appBar: AppBar(title: Text(widget.artistName)),
-        body: const Center(child: CircularProgressIndicator()),
+        body: const ArtistScreenSkeleton(),
       );
     }
 

lib/screens/library_playlists_screen.dart

@@ -8,6 +8,7 @@ import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/library_collections_provider.dart';
 import 'package:spotiflac_android/screens/library_tracks_folder_screen.dart';
 import 'package:spotiflac_android/services/cover_cache_manager.dart';
+import 'package:spotiflac_android/widgets/bottom_sheet_option_tile.dart';
 import 'package:spotiflac_android/utils/app_bar_layout.dart';
 
 class LibraryPlaylistsScreen extends ConsumerWidget {
@@ -210,7 +211,7 @@ class LibraryPlaylistsScreen extends ConsumerWidget {
               color: colorScheme.outlineVariant.withValues(alpha: 0.5),
             ),
 
-            _PlaylistOptionTile(
+            BottomSheetOptionTile(
               icon: Icons.edit_outlined,
               title: context.l10n.collectionRenamePlaylist,
               onTap: () {
@@ -224,7 +225,7 @@ class LibraryPlaylistsScreen extends ConsumerWidget {
               },
             ),
 
-            _PlaylistOptionTile(
+            BottomSheetOptionTile(
               icon: Icons.image_outlined,
               title: context.l10n.collectionPlaylistChangeCover,
               onTap: () {
@@ -233,7 +234,7 @@ class LibraryPlaylistsScreen extends ConsumerWidget {
               },
             ),
 
-            _PlaylistOptionTile(
+            BottomSheetOptionTile(
               icon: Icons.delete_outline,
               iconColor: colorScheme.error,
               title: context.l10n.collectionDeletePlaylist,
@@ -543,40 +544,3 @@ class LibraryPlaylistsScreen extends ConsumerWidget {
     );
   }
 }
-
-/// Styled like _OptionTile in track_collection_quick_actions.dart
-class _PlaylistOptionTile extends StatelessWidget {
-  final IconData icon;
-  final Color? iconColor;
-  final String title;
-  final VoidCallback onTap;
-
-  const _PlaylistOptionTile({
-    required this.icon,
-    this.iconColor,
-    required this.title,
-    required this.onTap,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    final colorScheme = Theme.of(context).colorScheme;
-    return ListTile(
-      contentPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 4),
-      leading: Container(
-        padding: const EdgeInsets.all(10),
-        decoration: BoxDecoration(
-          color: colorScheme.primaryContainer,
-          borderRadius: BorderRadius.circular(12),
-        ),
-        child: Icon(
-          icon,
-          color: iconColor ?? colorScheme.onPrimaryContainer,
-          size: 20,
-        ),
-      ),
-      title: Text(title, style: const TextStyle(fontWeight: FontWeight.w500)),
-      onTap: onTap,
-    );
-  }
-}

lib/screens/library_tracks_folder_screen.dart

@@ -15,7 +15,9 @@ import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/services/cover_cache_manager.dart';
 import 'package:spotiflac_android/screens/track_metadata_screen.dart';
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
+import 'package:spotiflac_android/widgets/bottom_sheet_option_tile.dart';
 import 'package:spotiflac_android/widgets/playlist_picker_sheet.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 
 class LibraryTracksFolderScreen extends ConsumerStatefulWidget {
   final LibraryTracksFolderMode mode;
@@ -272,7 +274,6 @@ class _LibraryTracksFolderScreenState
         break;
     }
 
-    // Stale selection cleanup
     if (_isSelectionMode) {
       final validKeys = entries.map((e) => e.key).toSet();
       _selectedKeys.removeWhere((key) => !validKeys.contains(key));
@@ -348,20 +349,23 @@ class _LibraryTracksFolderScreenState
                       final isSelected = _selectedKeys.contains(entry.key);
                       return KeyedSubtree(
                         key: ValueKey(entry.key),
-                        child: _CollectionTrackTile(
-                          entry: entry,
-                          mode: widget.mode,
-                          playlistId: widget.playlistId,
-                          localLibraryState: localState,
-                          folderTracks: folderTracks,
-                          isSelectionMode: _isSelectionMode,
-                          isSelected: isSelected,
-                          onTap: _isSelectionMode
-                              ? () => _toggleSelection(entry.key)
-                              : null,
-                          onLongPress: _isSelectionMode
-                              ? null
-                              : () => _enterSelectionMode(entry.key),
+                        child: StaggeredListItem(
+                          index: index,
+                          child: _CollectionTrackTile(
+                            entry: entry,
+                            mode: widget.mode,
+                            playlistId: widget.playlistId,
+                            localLibraryState: localState,
+                            folderTracks: folderTracks,
+                            isSelectionMode: _isSelectionMode,
+                            isSelected: isSelected,
+                            onTap: _isSelectionMode
+                                ? () => _toggleSelection(entry.key)
+                                : null,
+                            onLongPress: _isSelectionMode
+                                ? null
+                                : () => _enterSelectionMode(entry.key),
+                          ),
                         ),
                       );
                     }, childCount: entries.length),
@@ -372,7 +376,6 @@ class _LibraryTracksFolderScreenState
               ],
             ),
 
-            // Selection bottom bar
             AnimatedPositioned(
               duration: const Duration(milliseconds: 250),
               curve: Curves.easeOutCubic,
@@ -1081,14 +1084,19 @@ class _CollectionTrackTile extends ConsumerWidget {
     final track = entry.track;
     final colorScheme = Theme.of(context).colorScheme;
     final effectiveCoverUrl = _resolveCoverUrl(track);
-    final isInHistory = ref.watch(
+
+    // Fine-grained provider watches – only this tile rebuilds when its own
+    // history / local-library entry changes.
+    final historyItem = ref.watch(
       downloadHistoryProvider.select((state) {
-        if (state.isDownloaded(track.id)) return true;
+        final byId = state.getBySpotifyId(track.id);
+        if (byId != null) return byId;
         final isrc = track.isrc?.trim();
-        if (isrc != null && isrc.isNotEmpty && state.getByIsrc(isrc) != null) {
-          return true;
+        if (isrc != null && isrc.isNotEmpty) {
+          final byIsrc = state.getByIsrc(isrc);
+          if (byIsrc != null) return byIsrc;
         }
-        return state.findByTrackAndArtist(track.name, track.artistName) != null;
+        return state.findByTrackAndArtist(track.name, track.artistName);
       }),
     );
     final showLocalLibraryIndicator = ref.watch(
@@ -1096,17 +1104,26 @@ class _CollectionTrackTile extends ConsumerWidget {
         (s) => s.localLibraryEnabled && s.localLibraryShowDuplicates,
       ),
     );
-    final isInLocalLibrary = showLocalLibraryIndicator
+    final localItem = showLocalLibraryIndicator
         ? ref.watch(
-            localLibraryProvider.select(
-              (state) => state.existsInLibrary(
-                isrc: track.isrc,
-                trackName: track.name,
-                artistName: track.artistName,
-              ),
-            ),
+            localLibraryProvider.select((state) {
+              final isrc = track.isrc?.trim();
+              if (isrc != null && isrc.isNotEmpty) {
+                final byIsrc = state.getByIsrc(isrc);
+                if (byIsrc != null) return byIsrc;
+              }
+              return state.findByTrackAndArtist(track.name, track.artistName);
+            }),
           )
-        : false;
+        : null;
+
+    final isInHistory = historyItem != null;
+    final isInLocalLibrary = localItem != null;
+    final heroTag = historyItem != null
+        ? 'cover_${historyItem.id}'
+        : localItem != null
+        ? 'cover_lib_${localItem.id}'
+        : null;
 
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 8),
@@ -1124,43 +1141,51 @@ class _CollectionTrackTile extends ConsumerWidget {
             mainAxisSize: MainAxisSize.min,
             children: [
               if (isSelectionMode) ...[
-                Container(
-                  width: 24,
-                  height: 24,
-                  decoration: BoxDecoration(
-                    color: isSelected
-                        ? colorScheme.primary
-                        : Colors.transparent,
-                    shape: BoxShape.circle,
-                    border: Border.all(
-                      color: isSelected
-                          ? colorScheme.primary
-                          : colorScheme.outline,
-                      width: 2,
-                    ),
-                  ),
-                  child: isSelected
-                      ? Icon(
-                          Icons.check,
-                          color: colorScheme.onPrimary,
-                          size: 16,
-                        )
-                      : null,
+                AnimatedSelectionCheckbox(
+                  visible: true,
+                  selected: isSelected,
+                  colorScheme: colorScheme,
+                  size: 24,
                 ),
                 const SizedBox(width: 12),
               ],
-              ClipRRect(
-                borderRadius: BorderRadius.circular(8),
-                child: effectiveCoverUrl != null && effectiveCoverUrl.isNotEmpty
-                    ? _buildTrackCover(context, effectiveCoverUrl, 52)
-                    : Container(
-                        width: 52,
-                        height: 52,
-                        color: colorScheme.surfaceContainerHighest,
-                        child: Icon(
-                          Icons.music_note,
-                          color: colorScheme.onSurfaceVariant,
+              HeroMode(
+                enabled: heroTag != null,
+                child: heroTag != null
+                    ? Hero(
+                        tag: heroTag,
+                        child: ClipRRect(
+                          borderRadius: BorderRadius.circular(8),
+                          child:
+                              effectiveCoverUrl != null &&
+                                  effectiveCoverUrl.isNotEmpty
+                              ? _buildTrackCover(context, effectiveCoverUrl, 52)
+                              : Container(
+                                  width: 52,
+                                  height: 52,
+                                  color: colorScheme.surfaceContainerHighest,
+                                  child: Icon(
+                                    Icons.music_note,
+                                    color: colorScheme.onSurfaceVariant,
+                                  ),
+                                ),
                         ),
+                      )
+                    : ClipRRect(
+                        borderRadius: BorderRadius.circular(8),
+                        child:
+                            effectiveCoverUrl != null &&
+                                effectiveCoverUrl.isNotEmpty
+                            ? _buildTrackCover(context, effectiveCoverUrl, 52)
+                            : Container(
+                                width: 52,
+                                height: 52,
+                                color: colorScheme.surfaceContainerHighest,
+                                child: Icon(
+                                  Icons.music_note,
+                                  color: colorScheme.onSurfaceVariant,
+                                ),
+                              ),
                       ),
               ),
             ],
@@ -1390,9 +1415,8 @@ class _CollectionTrackTile extends ConsumerWidget {
               color: colorScheme.outlineVariant.withValues(alpha: 0.5),
             ),
 
-            // Add to playlist (hidden in wishlist unless already downloaded)
             if (showAddToPlaylist)
-              _CollectionOptionTile(
+              BottomSheetOptionTile(
                 icon: Icons.playlist_add,
                 title: context.l10n.collectionAddToPlaylist,
                 onTap: () {
@@ -1401,8 +1425,7 @@ class _CollectionTrackTile extends ConsumerWidget {
                 },
               ),
 
-            // Remove from folder / playlist
-            _CollectionOptionTile(
+            BottomSheetOptionTile(
               icon: Icons.remove_circle_outline,
               iconColor: colorScheme.error,
               title: mode == LibraryTracksFolderMode.playlist
@@ -1500,16 +1523,9 @@ class _CollectionTrackTile extends ConsumerWidget {
     );
 
     if (historyItem != null) {
-      await Navigator.of(context).push(
-        PageRouteBuilder(
-          transitionDuration: const Duration(milliseconds: 300),
-          reverseTransitionDuration: const Duration(milliseconds: 250),
-          pageBuilder: (context, animation, secondaryAnimation) =>
-              TrackMetadataScreen(item: historyItem),
-          transitionsBuilder: (context, animation, secondaryAnimation, child) =>
-              FadeTransition(opacity: animation, child: child),
-        ),
-      );
+      await Navigator.of(
+        context,
+      ).push(slidePageRoute(page: TrackMetadataScreen(item: historyItem)));
       return;
     }
 
@@ -1524,16 +1540,9 @@ class _CollectionTrackTile extends ConsumerWidget {
     localItem ??= localState.findByTrackAndArtist(track.name, track.artistName);
 
     if (localItem != null) {
-      await Navigator.of(context).push(
-        PageRouteBuilder(
-          transitionDuration: const Duration(milliseconds: 300),
-          reverseTransitionDuration: const Duration(milliseconds: 250),
-          pageBuilder: (context, animation, secondaryAnimation) =>
-              TrackMetadataScreen(localItem: localItem),
-          transitionsBuilder: (context, animation, secondaryAnimation, child) =>
-              FadeTransition(opacity: animation, child: child),
-        ),
-      );
+      await Navigator.of(
+        context,
+      ).push(slidePageRoute(page: TrackMetadataScreen(localItem: localItem)));
       return;
     }
 
@@ -1542,43 +1551,6 @@ class _CollectionTrackTile extends ConsumerWidget {
   }
 }
 
-/// Styled like _OptionTile in track_collection_quick_actions.dart
-class _CollectionOptionTile extends StatelessWidget {
-  final IconData icon;
-  final Color? iconColor;
-  final String title;
-  final VoidCallback onTap;
-
-  const _CollectionOptionTile({
-    required this.icon,
-    this.iconColor,
-    required this.title,
-    required this.onTap,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    final colorScheme = Theme.of(context).colorScheme;
-    return ListTile(
-      contentPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 4),
-      leading: Container(
-        padding: const EdgeInsets.all(10),
-        decoration: BoxDecoration(
-          color: colorScheme.primaryContainer,
-          borderRadius: BorderRadius.circular(12),
-        ),
-        child: Icon(
-          icon,
-          color: iconColor ?? colorScheme.onPrimaryContainer,
-          size: 20,
-        ),
-      ),
-      title: Text(title, style: const TextStyle(fontWeight: FontWeight.w500)),
-      onTap: onTap,
-    );
-  }
-}
-
 class _SelectionActionButton extends StatelessWidget {
   final IconData icon;
   final String label;

lib/screens/local_album_screen.dart

@@ -16,6 +16,7 @@ import 'package:spotiflac_android/services/local_track_redownload_service.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/providers/local_library_provider.dart';
 import 'package:spotiflac_android/providers/playback_provider.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 
 class LocalAlbumScreen extends ConsumerStatefulWidget {
   final String albumName;
@@ -531,7 +532,6 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
     if (tracks.isEmpty) return null;
     final first = tracks.first;
 
-    // For lossy formats, use bitrate
     if (first.bitrate != null && first.bitrate! > 0) {
       final fmt = first.format?.toUpperCase() ?? '';
       final firstBitrate = first.bitrate;
@@ -543,7 +543,6 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
       return '$fmt ${firstBitrate}kbps'.trim();
     }
 
-    // For lossless formats, use bit depth / sample rate
     if (first.bitDepth == null ||
         first.bitDepth == 0 ||
         first.sampleRate == null) {
@@ -630,7 +629,10 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
             final track = discTracks[index];
             return KeyedSubtree(
               key: ValueKey(track.id),
-              child: _buildTrackItem(context, colorScheme, track),
+              child: StaggeredListItem(
+                index: index,
+                child: _buildTrackItem(context, colorScheme, track),
+              ),
             );
           }, childCount: discTracks.length),
         ),
@@ -669,28 +671,11 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
             mainAxisSize: MainAxisSize.min,
             children: [
               if (_isSelectionMode) ...[
-                Container(
-                  width: 24,
-                  height: 24,
-                  decoration: BoxDecoration(
-                    color: isSelected
-                        ? colorScheme.primary
-                        : Colors.transparent,
-                    shape: BoxShape.circle,
-                    border: Border.all(
-                      color: isSelected
-                          ? colorScheme.primary
-                          : colorScheme.outline,
-                      width: 2,
-                    ),
-                  ),
-                  child: isSelected
-                      ? Icon(
-                          Icons.check,
-                          color: colorScheme.onPrimary,
-                          size: 16,
-                        )
-                      : null,
+                AnimatedSelectionCheckbox(
+                  visible: true,
+                  selected: isSelected,
+                  colorScheme: colorScheme,
+                  size: 24,
                 ),
                 const SizedBox(width: 12),
               ],
@@ -1382,7 +1367,6 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
         }
       }
       if (currentFormat == null || currentFormat == targetFormat) continue;
-      // Skip lossy sources when target is lossless (pointless re-encoding)
       final isLosslessTarget = targetFormat == 'ALAC' || targetFormat == 'FLAC';
       final isLosslessSource =
           currentFormat == 'FLAC' || currentFormat == 'M4A';
@@ -1503,7 +1487,7 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
           bitrate: bitrate,
           metadata: metadata,
           coverPath: coverPath,
-          deleteOriginal: !isSaf, // Only delete original for regular files
+          deleteOriginal: !isSaf,
         );
 
         if (coverPath != null) {
@@ -1522,15 +1506,9 @@ class _LocalAlbumScreenState extends ConsumerState<LocalAlbumScreen> {
         }
 
         if (isSaf) {
-          // For SAF: derive the parent tree URI and relative dir from the content URI,
-          // then create new SAF file and delete old one
-          // Parse the SAF URI to get the tree document path:
-          // content://...tree/...document/.../oldName.flac
-          // We need tree URI and relative dir to create the new file
           final uri = Uri.parse(item.filePath);
           final pathSegments = uri.pathSegments;
 
-          // Try to find 'tree' and 'document' segments
           String? treeUri;
           String relativeDir = '';
           String oldFileName = '';

lib/screens/main_shell.dart

@@ -20,6 +20,7 @@ import 'package:spotiflac_android/services/shell_navigation_service.dart';
 import 'package:spotiflac_android/services/share_intent_service.dart';
 import 'package:spotiflac_android/services/update_checker.dart';
 import 'package:spotiflac_android/widgets/update_dialog.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/utils/logger.dart';
 
 final _log = AppLogger('MainShell');
@@ -31,9 +32,11 @@ class MainShell extends ConsumerStatefulWidget {
   ConsumerState<MainShell> createState() => _MainShellState();
 }
 
-class _MainShellState extends ConsumerState<MainShell> {
+class _MainShellState extends ConsumerState<MainShell>
+    with SingleTickerProviderStateMixin {
   int _currentIndex = 0;
   late final PageController _pageController;
+  late final AnimationController _tabJumpTransitionController;
   bool _hasCheckedUpdate = false;
   StreamSubscription<String>? _shareSubscription;
   DateTime? _lastBackPress;
@@ -48,6 +51,11 @@ class _MainShellState extends ConsumerState<MainShell> {
   void initState() {
     super.initState();
     _pageController = PageController(initialPage: _currentIndex);
+    _tabJumpTransitionController = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 180),
+      value: 1,
+    );
     ShellNavigationService.syncState(
       currentTabIndex: _currentIndex,
       showStoreTab: false,
@@ -154,7 +162,6 @@ class _MainShellState extends ConsumerState<MainShell> {
     if (!Platform.isAndroid) return;
 
     final settings = ref.read(settingsProvider);
-    // Only show if user is still on legacy storage mode with a download dir set
     if (settings.storageMode == 'saf') return;
     if (settings.downloadDirectory.isEmpty) return;
 
@@ -229,6 +236,7 @@ class _MainShellState extends ConsumerState<MainShell> {
   void dispose() {
     _shareSubscription?.cancel();
     _pageController.dispose();
+    _tabJumpTransitionController.dispose();
     super.dispose();
   }
 
@@ -251,7 +259,8 @@ class _MainShellState extends ConsumerState<MainShell> {
     }
 
     if (_currentIndex != index) {
-      final shouldResetHome = index == 0;
+      final previousIndex = _currentIndex;
+      final isNonAdjacentJump = (previousIndex - index).abs() > 1;
       HapticFeedback.selectionClick();
       setState(() => _currentIndex = index);
       final showStore = ref.read(
@@ -262,19 +271,23 @@ class _MainShellState extends ConsumerState<MainShell> {
         showStoreTab: showStore,
       );
       FocusManager.instance.primaryFocus?.unfocus();
-      if (shouldResetHome) {
-        _resetHomeToMain();
+      // Jump directly when skipping intermediate tabs to avoid
+      // sliding through them. For those jumps, keep a short fade-in
+      // so the transition still feels intentional.
+      if (isNonAdjacentJump) {
+        _pageController.jumpToPage(index);
+        _tabJumpTransitionController.forward(from: 0);
+      } else {
+        _pageController.animateToPage(
+          index,
+          duration: const Duration(milliseconds: 250),
+          curve: Curves.easeOutCubic,
+        );
       }
-      _pageController.animateToPage(
-        index,
-        duration: const Duration(milliseconds: 250),
-        curve: Curves.easeOutCubic,
-      );
     }
   }
 
   void _onPageChanged(int index) {
-    final previousIndex = _currentIndex;
     if (_currentIndex != index) {
       setState(() => _currentIndex = index);
       final showStore = ref.read(
@@ -285,9 +298,6 @@ class _MainShellState extends ConsumerState<MainShell> {
         showStoreTab: showStore,
       );
       FocusManager.instance.primaryFocus?.unfocus();
-      if (index == 0 && previousIndex != 0) {
-        _resetHomeToMain();
-      }
     }
   }
 
@@ -451,32 +461,44 @@ class _MainShellState extends ConsumerState<MainShell> {
         label: l10n.navHome,
       ),
       NavigationDestination(
-        icon: Badge(
-          isLabelVisible: queueState > 0,
-          label: Text('$queueState'),
-          child: const Icon(Icons.library_music_outlined),
-        ),
-        selectedIcon: SlidingIcon(
+        icon: AnimatedBadge(
+          count: queueState,
           child: Badge(
             isLabelVisible: queueState > 0,
             label: Text('$queueState'),
-            child: const Icon(Icons.library_music),
+            child: const Icon(Icons.library_music_outlined),
+          ),
+        ),
+        selectedIcon: SlidingIcon(
+          child: AnimatedBadge(
+            count: queueState,
+            child: Badge(
+              isLabelVisible: queueState > 0,
+              label: Text('$queueState'),
+              child: const Icon(Icons.library_music),
+            ),
           ),
         ),
         label: l10n.navLibrary,
       ),
       if (showStore)
         NavigationDestination(
-          icon: Badge(
-            isLabelVisible: storeUpdatesCount > 0,
-            label: Text('$storeUpdatesCount'),
-            child: const Icon(Icons.store_outlined),
-          ),
-          selectedIcon: SwingIcon(
+          icon: AnimatedBadge(
+            count: storeUpdatesCount,
             child: Badge(
               isLabelVisible: storeUpdatesCount > 0,
               label: Text('$storeUpdatesCount'),
-              child: const Icon(Icons.store),
+              child: const Icon(Icons.store_outlined),
+            ),
+          ),
+          selectedIcon: SwingIcon(
+            child: AnimatedBadge(
+              count: storeUpdatesCount,
+              child: Badge(
+                isLabelVisible: storeUpdatesCount > 0,
+                label: Text('$storeUpdatesCount'),
+                child: const Icon(Icons.store),
+              ),
             ),
           ),
           label: l10n.navStore,
@@ -504,15 +526,27 @@ class _MainShellState extends ConsumerState<MainShell> {
         return true;
       },
       child: Scaffold(
-        body: PageView.builder(
-          controller: _pageController,
-          itemCount: tabs.length,
-          onPageChanged: _onPageChanged,
-          physics: const NeverScrollableScrollPhysics(),
-          itemBuilder: (context, index) => _KeepAliveTabPage(
-            key: ValueKey('page-$index'),
-            child: tabs[index],
+        body: AnimatedBuilder(
+          animation: _tabJumpTransitionController,
+          child: PageView.builder(
+            controller: _pageController,
+            itemCount: tabs.length,
+            onPageChanged: _onPageChanged,
+            physics: const NeverScrollableScrollPhysics(),
+            itemBuilder: (context, index) => _KeepAliveTabPage(
+              key: ValueKey('page-$index'),
+              child: tabs[index],
+            ),
           ),
+          builder: (context, child) {
+            final t = Curves.easeOutCubic.transform(
+              _tabJumpTransitionController.value,
+            );
+            return Opacity(
+              opacity: t,
+              child: Transform.scale(scale: 0.985 + (0.015 * t), child: child),
+            );
+          },
         ),
         bottomNavigationBar: NavigationBar(
           selectedIndex: _currentIndex.clamp(0, maxIndex),
@@ -707,7 +741,7 @@ class _SwingIconState extends State<SwingIcon>
       TweenSequenceItem(tween: Tween(begin: 0.15, end: -0.1), weight: 20),
       TweenSequenceItem(tween: Tween(begin: -0.1, end: 0.05), weight: 20),
       TweenSequenceItem(tween: Tween(begin: 0.05, end: 0.0), weight: 20),
-    ]).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
+    ]).animate(_controller);
 
     _controller.forward();
   }

lib/screens/playlist_screen.dart

@@ -15,12 +15,14 @@ import 'package:spotiflac_android/providers/playback_provider.dart';
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
 import 'package:spotiflac_android/widgets/playlist_picker_sheet.dart';
 import 'package:spotiflac_android/widgets/track_collection_quick_actions.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 
 class PlaylistScreen extends ConsumerStatefulWidget {
   final String playlistName;
   final String? coverUrl;
   final List<Track> tracks;
   final String? playlistId;
+  final String? recommendedService;
 
   const PlaylistScreen({
     super.key,
@@ -28,6 +30,7 @@ class PlaylistScreen extends ConsumerStatefulWidget {
     this.coverUrl,
     required this.tracks,
     this.playlistId,
+    this.recommendedService,
   });
 
   @override
@@ -47,6 +50,31 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
   String get _playlistName => _resolvedPlaylistName ?? widget.playlistName;
   String? get _coverUrl => _resolvedCoverUrl ?? widget.coverUrl;
 
+  String? _recommendedDownloadService() {
+    final explicit = widget.recommendedService;
+    if (explicit != null && explicit.isNotEmpty) {
+      return explicit;
+    }
+
+    final playlistId = widget.playlistId;
+    if (playlistId != null) {
+      if (playlistId.startsWith('tidal:')) return 'tidal';
+      if (playlistId.startsWith('qobuz:')) return 'qobuz';
+      if (playlistId.startsWith('deezer:')) return 'deezer';
+    }
+
+    final source = _tracks.firstOrNull?.source;
+    if (source != null && source.isNotEmpty) {
+      return source;
+    }
+
+    final trackId = _tracks.firstOrNull?.id ?? '';
+    if (trackId.startsWith('tidal:')) return 'tidal';
+    if (trackId.startsWith('qobuz:')) return 'qobuz';
+    if (trackId.startsWith('deezer:')) return 'deezer';
+    return null;
+  }
+
   @override
   void initState() {
     super.initState();
@@ -360,8 +388,8 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
     if (_isLoading) {
       return const SliverToBoxAdapter(
         child: Padding(
-          padding: EdgeInsets.all(32),
-          child: Center(child: CircularProgressIndicator()),
+          padding: EdgeInsets.all(16),
+          child: TrackListSkeleton(itemCount: 8),
         ),
       );
     }
@@ -411,9 +439,12 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
         final track = _tracks[index];
         return KeyedSubtree(
           key: ValueKey(track.id),
-          child: _PlaylistTrackItem(
-            track: track,
-            onDownload: () => _downloadTrack(context, track),
+          child: StaggeredListItem(
+            index: index,
+            child: _PlaylistTrackItem(
+              track: track,
+              onDownload: () => _downloadTrack(context, track),
+            ),
           ),
         );
       }, childCount: _tracks.length),
@@ -429,6 +460,7 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
         trackName: track.name,
         artistName: track.artistName,
         coverUrl: track.coverUrl,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           ref
               .read(downloadQueueProvider.notifier)
@@ -616,7 +648,6 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
   void _downloadTracks(BuildContext context, List<Track> tracks) {
     if (tracks.isEmpty) return;
 
-    // Skip already-downloaded tracks
     final historyState = ref.read(downloadHistoryProvider);
     final settings = ref.read(settingsProvider);
     final localLibState =
@@ -663,6 +694,7 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
         context,
         trackName: '${tracksToQueue.length} tracks',
         artistName: _playlistName,
+        recommendedService: _recommendedDownloadService(),
         onSelect: (quality, service) {
           ref
               .read(downloadQueueProvider.notifier)
@@ -725,7 +757,6 @@ class _PlaylistTrackItem extends ConsumerWidget {
       }),
     );
 
-    // Check local library for duplicate detection
     final showLocalLibraryIndicator = ref.watch(
       settingsProvider.select(
         (s) => s.localLibraryEnabled && s.localLibraryShowDuplicates,

lib/screens/search_screen.dart

@@ -8,6 +8,7 @@ import 'package:spotiflac_android/providers/track_provider.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/widgets/track_collection_quick_actions.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/utils/clickable_metadata.dart';
 
 class SearchScreen extends ConsumerStatefulWidget {
@@ -51,9 +52,9 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
     ref
         .read(downloadQueueProvider.notifier)
         .addToQueue(track, settings.defaultService);
-    ScaffoldMessenger.of(
-      context,
-    ).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))),
+    );
   }
 
   @override
@@ -95,13 +96,20 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
               child: Text(error, style: TextStyle(color: colorScheme.error)),
             ),
           Expanded(
-            child: tracks.isEmpty
-                ? _buildEmptyState(colorScheme)
-                : ListView.builder(
-                    itemCount: tracks.length,
-                    itemBuilder: (context, index) =>
-                        _buildTrackTile(tracks[index], colorScheme),
-                  ),
+            child: AnimatedStateSwitcher(
+              child: isLoading && tracks.isEmpty
+                  ? const TrackListSkeleton(key: ValueKey('loading'))
+                  : tracks.isEmpty
+                  ? _buildEmptyState(colorScheme)
+                  : ListView.builder(
+                      key: const ValueKey('results'),
+                      itemCount: tracks.length,
+                      itemBuilder: (context, index) => StaggeredListItem(
+                        index: index,
+                        child: _buildTrackTile(tracks[index], colorScheme),
+                      ),
+                    ),
+            ),
           ),
         ],
       ),
@@ -127,32 +135,30 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
   }
 
   Widget _buildTrackTile(Track track, ColorScheme colorScheme) {
-    return ListTile(
-      leading: track.coverUrl != null
-          ? ClipRRect(
-              borderRadius: BorderRadius.circular(8),
-              child: CachedNetworkImage(
-                imageUrl: track.coverUrl!,
-                width: 48,
-                height: 48,
-                fit: BoxFit.cover,
-                memCacheWidth: 144,
-                memCacheHeight: 144,
-                cacheManager: CoverCacheManager.instance,
-              ),
-            )
-          : Container(
+    final coverWidget = track.coverUrl != null
+        ? ClipRRect(
+            borderRadius: BorderRadius.circular(8),
+            child: CachedNetworkImage(
+              imageUrl: track.coverUrl!,
               width: 48,
               height: 48,
-              decoration: BoxDecoration(
-                color: colorScheme.surfaceContainerHighest,
-                borderRadius: BorderRadius.circular(8),
-              ),
-              child: Icon(
-                Icons.music_note,
-                color: colorScheme.onSurfaceVariant,
-              ),
+              fit: BoxFit.cover,
+              memCacheWidth: 144,
+              memCacheHeight: 144,
+              cacheManager: CoverCacheManager.instance,
             ),
+          )
+        : Container(
+            width: 48,
+            height: 48,
+            decoration: BoxDecoration(
+              color: colorScheme.surfaceContainerHighest,
+              borderRadius: BorderRadius.circular(8),
+            ),
+            child: Icon(Icons.music_note, color: colorScheme.onSurfaceVariant),
+          );
+    return ListTile(
+      leading: coverWidget,
       title: Text(track.name, maxLines: 1, overflow: TextOverflow.ellipsis),
       subtitle: Column(
         crossAxisAlignment: CrossAxisAlignment.start,

lib/screens/settings/donate_page.dart

@@ -477,122 +477,40 @@ class _CryptoWalletItem extends StatelessWidget {
   }
 }
 
-int _cr(String v) {
-  int r = 0x1F;
-  for (final c in v.codeUnits) {
-    r = (r * 31 + c) & 0x7FFFFFFF;
-  }
-  return r;
-}
-
-// Highlighted supporters (hashes of names).
-const _cv = <int>{1211573191, 1003219236};
-
-// Diamond tier supporters ($50+ donors).
-const _dv = <int>{560908930};
-
-enum _SupporterTier { normal, gold, diamond }
-
-_SupporterTier _tierOf(String name) {
-  final h = _cr(name);
-  if (_dv.contains(h)) return _SupporterTier.diamond;
-  if (_cv.contains(h)) return _SupporterTier.gold;
-  return _SupporterTier.normal;
-}
-
-class _SupporterChip extends StatefulWidget {
+class _SupporterChip extends StatelessWidget {
   final String name;
   final ColorScheme colorScheme;
 
   const _SupporterChip({required this.name, required this.colorScheme});
 
-  @override
-  State<_SupporterChip> createState() => _SupporterChipState();
-}
-
-class _SupporterChipState extends State<_SupporterChip>
-    with SingleTickerProviderStateMixin {
-  late final _SupporterTier _tier;
-  AnimationController? _shimmerController;
-
-  @override
-  void initState() {
-    super.initState();
-    _tier = _tierOf(widget.name);
-    if (_tier == _SupporterTier.diamond) {
-      _shimmerController = AnimationController(
-        vsync: this,
-        duration: const Duration(milliseconds: 2400),
-      )..repeat();
-    }
-  }
-
-  @override
-  void dispose() {
-    _shimmerController?.dispose();
-    super.dispose();
-  }
-
   @override
   Widget build(BuildContext context) {
-    final isDark = Theme.of(context).brightness == Brightness.dark;
-
-    if (_tier == _SupporterTier.diamond) {
-      return _buildDiamondChip(isDark);
-    }
-
-    final isGold = _tier == _SupporterTier.gold;
-    const goldChipColor = Color(0xFFFFF8DC);
-    const goldAccentColor = Color(0xFFB8860B);
-    const goldDarkChipColor = Color(0xFF3A3000);
-
-    final chipColor = isGold
-        ? goldChipColor
-        : widget.colorScheme.secondaryContainer;
-    final accentColor = isGold ? goldAccentColor : widget.colorScheme.primary;
-    final effectiveChipColor = isGold && isDark ? goldDarkChipColor : chipColor;
-
     return Material(
-      color: effectiveChipColor,
+      color: colorScheme.secondaryContainer,
       borderRadius: BorderRadius.circular(20),
-      child: Container(
-        decoration: isGold
-            ? BoxDecoration(
-                borderRadius: BorderRadius.circular(20),
-                border: Border.all(
-                  color: accentColor.withValues(alpha: 0.4),
-                  width: 1,
-                ),
-              )
-            : null,
+      child: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
         child: Row(
           mainAxisSize: MainAxisSize.min,
           children: [
             CircleAvatar(
               radius: 10,
-              backgroundColor: accentColor.withValues(alpha: 0.2),
-              child: isGold
-                  ? Icon(Icons.star_rounded, size: 12, color: accentColor)
-                  : Text(
-                      widget.name.isNotEmpty
-                          ? widget.name[0].toUpperCase()
-                          : '?',
-                      style: TextStyle(
-                        fontSize: 10,
-                        fontWeight: FontWeight.bold,
-                        color: accentColor,
-                      ),
-                    ),
+              backgroundColor: colorScheme.primary.withValues(alpha: 0.2),
+              child: Text(
+                name.isNotEmpty ? name[0].toUpperCase() : '?',
+                style: TextStyle(
+                  fontSize: 10,
+                  fontWeight: FontWeight.bold,
+                  color: colorScheme.primary,
+                ),
+              ),
             ),
             const SizedBox(width: 8),
             Text(
-              widget.name,
+              name,
               style: Theme.of(context).textTheme.labelLarge?.copyWith(
-                color: isGold
-                    ? accentColor
-                    : widget.colorScheme.onSecondaryContainer,
-                fontWeight: isGold ? FontWeight.w600 : FontWeight.w500,
+                color: colorScheme.onSecondaryContainer,
+                fontWeight: FontWeight.w500,
               ),
             ),
           ],
@@ -600,92 +518,6 @@ class _SupporterChipState extends State<_SupporterChip>
       ),
     );
   }
-
-  Widget _buildDiamondChip(bool isDark) {
-    const diamondLight = Color(0xFFE8F4FD);
-    const diamondDark = Color(0xFF0D2B3E);
-    const diamondAccent = Color(0xFF4FC3F7);
-    const diamondHighlight = Color(0xFFB3E5FC);
-
-    final chipBg = isDark ? diamondDark : diamondLight;
-
-    return AnimatedBuilder(
-      animation: _shimmerController!,
-      builder: (context, child) {
-        final t = _shimmerController!.value;
-        return Material(
-          color: Colors.transparent,
-          borderRadius: BorderRadius.circular(20),
-          child: Container(
-            decoration: BoxDecoration(
-              borderRadius: BorderRadius.circular(20),
-              gradient: LinearGradient(
-                begin: Alignment(-2.0 + 4.0 * t, 0.0),
-                end: Alignment(-1.0 + 4.0 * t, 0.0),
-                colors: [
-                  chipBg,
-                  isDark
-                      ? diamondAccent.withValues(alpha: 0.18)
-                      : diamondHighlight.withValues(alpha: 0.7),
-                  chipBg,
-                ],
-                stops: const [0.0, 0.5, 1.0],
-              ),
-              border: Border.all(
-                color: diamondAccent.withValues(
-                  alpha: 0.5 + 0.3 * (0.5 - (t - 0.5).abs()),
-                ),
-                width: 1.2,
-              ),
-              boxShadow: [
-                BoxShadow(
-                  color: diamondAccent.withValues(
-                    alpha: 0.15 + 0.1 * (0.5 - (t - 0.5).abs()),
-                  ),
-                  blurRadius: 8,
-                  spreadRadius: 0,
-                ),
-              ],
-            ),
-            padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
-            child: Row(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                Container(
-                  width: 20,
-                  height: 20,
-                  decoration: BoxDecoration(
-                    shape: BoxShape.circle,
-                    gradient: LinearGradient(
-                      begin: Alignment.topLeft,
-                      end: Alignment.bottomRight,
-                      colors: [
-                        diamondAccent.withValues(alpha: 0.3),
-                        diamondAccent.withValues(alpha: 0.15),
-                      ],
-                    ),
-                  ),
-                  child: const Icon(
-                    Icons.diamond_rounded,
-                    size: 12,
-                    color: diamondAccent,
-                  ),
-                ),
-                const SizedBox(width: 8),
-                Text(
-                  widget.name,
-                  style: Theme.of(context).textTheme.labelLarge?.copyWith(
-                    color: isDark ? diamondHighlight : diamondAccent,
-                    fontWeight: FontWeight.w700,
-                  ),
-                ),
-              ],
-            ),
-          ),
-        );
-      },
-    );
-  }
 }
 
 class _NoticeLine extends StatelessWidget {

lib/screens/settings/download_settings_page.dart

@@ -465,34 +465,6 @@ class _DownloadSettingsPageState extends ConsumerState<DownloadSettingsPage> {
                       ),
                     ),
                   ],
-                  SettingsItem(
-                    title: context.l10n.youtubeOpusBitrateTitle,
-                    subtitle:
-                        '${settings.youtubeOpusBitrate}kbps (128/256/320)',
-                    onTap: () => _showYoutubeBitratePicker(
-                      context: context,
-                      title: context.l10n.youtubeOpusBitrateTitle,
-                      currentValue: settings.youtubeOpusBitrate,
-                      options: const [128, 256, 320],
-                      onSave: (value) => ref
-                          .read(settingsProvider.notifier)
-                          .setYoutubeOpusBitrate(value),
-                    ),
-                  ),
-                  SettingsItem(
-                    title: context.l10n.youtubeMp3BitrateTitle,
-                    subtitle: '${settings.youtubeMp3Bitrate}kbps (128/256/320)',
-                    onTap: () => _showYoutubeBitratePicker(
-                      context: context,
-                      title: context.l10n.youtubeMp3BitrateTitle,
-                      currentValue: settings.youtubeMp3Bitrate,
-                      options: const [128, 256, 320],
-                      onSave: (value) => ref
-                          .read(settingsProvider.notifier)
-                          .setYoutubeMp3Bitrate(value),
-                    ),
-                    showDivider: false,
-                  ),
                 ],
               ),
             ),
@@ -869,6 +841,8 @@ class _DownloadSettingsPageState extends ConsumerState<DownloadSettingsPage> {
         return 'Albums/[Year] Album/';
       case 'artist_album_singles':
         return 'Artist/Album/ + Artist/Singles/';
+      case 'artist_album_flat':
+        return 'Artist/Album/ + Artist/song.flac';
       default:
         return 'Albums/Artist/Album Name/';
     }
@@ -958,6 +932,20 @@ class _DownloadSettingsPageState extends ConsumerState<DownloadSettingsPage> {
                 Navigator.pop(context);
               },
             ),
+            ListTile(
+              leading: const Icon(Icons.person_outline_outlined),
+              title: Text(context.l10n.albumFolderArtistAlbumFlat),
+              subtitle: Text(context.l10n.albumFolderArtistAlbumFlatSubtitle),
+              trailing: current == 'artist_album_flat'
+                  ? const Icon(Icons.check)
+                  : null,
+              onTap: () {
+                ref
+                    .read(settingsProvider.notifier)
+                    .setAlbumFolderStructure('artist_album_flat');
+                Navigator.pop(context);
+              },
+            ),
           ],
         ),
       ),
@@ -1689,68 +1677,6 @@ class _DownloadSettingsPageState extends ConsumerState<DownloadSettingsPage> {
     );
   }
 
-  void _showYoutubeBitratePicker({
-    required BuildContext context,
-    required String title,
-    required int currentValue,
-    required List<int> options,
-    required void Function(int value) onSave,
-  }) {
-    final colorScheme = Theme.of(context).colorScheme;
-
-    showModalBottomSheet(
-      context: context,
-      useRootNavigator: true,
-      backgroundColor: colorScheme.surfaceContainerHigh,
-      shape: const RoundedRectangleBorder(
-        borderRadius: BorderRadius.vertical(top: Radius.circular(28)),
-      ),
-      builder: (sheetContext) => SafeArea(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: [
-            const SizedBox(height: 8),
-            Container(
-              width: 40,
-              height: 4,
-              decoration: BoxDecoration(
-                color: colorScheme.onSurfaceVariant.withValues(alpha: 0.4),
-                borderRadius: BorderRadius.circular(2),
-              ),
-            ),
-            const SizedBox(height: 8),
-            Padding(
-              padding: const EdgeInsets.fromLTRB(24, 12, 24, 8),
-              child: Row(
-                children: [
-                  Expanded(
-                    child: Text(
-                      title,
-                      style: Theme.of(sheetContext).textTheme.titleMedium
-                          ?.copyWith(fontWeight: FontWeight.bold),
-                    ),
-                  ),
-                ],
-              ),
-            ),
-            for (final bitrate in options)
-              ListTile(
-                title: Text('$bitrate kbps'),
-                trailing: bitrate == currentValue
-                    ? Icon(Icons.check, color: colorScheme.primary)
-                    : null,
-                onTap: () {
-                  onSave(bitrate);
-                  Navigator.pop(sheetContext);
-                },
-              ),
-            const SizedBox(height: 8),
-          ],
-        ),
-      ),
-    );
-  }
-
   void _showMusixmatchLanguagePicker(
     BuildContext context,
     WidgetRef ref,
@@ -2100,7 +2026,7 @@ class _ServiceSelector extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final extState = ref.watch(extensionProvider);
-    final builtInServiceIds = ['tidal', 'qobuz', 'deezer', 'youtube'];
+    final builtInServiceIds = ['tidal', 'qobuz', 'deezer'];
 
     final extensionProviders = extState.extensions
         .where((e) => e.enabled && e.hasDownloadProvider)
@@ -2136,15 +2062,6 @@ class _ServiceSelector extends ConsumerWidget {
                   onTap: () => onChanged('qobuz'),
                 ),
               ),
-              const SizedBox(width: 8),
-              Expanded(
-                child: _ServiceChip(
-                  icon: Icons.smart_display,
-                  label: 'YouTube',
-                  isSelected: effectiveService == 'youtube',
-                  onTap: () => onChanged('youtube'),
-                ),
-              ),
             ],
           ),
           if (extensionProviders.isNotEmpty) ...[

lib/screens/settings/extension_detail_page.dart

@@ -61,7 +61,7 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
     final hasError = extension.status == 'error';
 
     return PopScope(
-      canPop: true, // Always allow back gesture
+      canPop: true,
       child: Scaffold(
         body: CustomScrollView(
           slivers: [

lib/screens/settings/extensions_page.dart

@@ -61,7 +61,7 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
     final topPadding = normalizedHeaderTopPadding(context);
 
     return PopScope(
-      canPop: true, // Always allow back gesture
+      canPop: true,
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
@@ -600,14 +600,12 @@ class _SearchProviderSelector extends ConsumerWidget {
         .where((e) => e.enabled && e.hasCustomSearch)
         .toList();
 
-    // Always allow tapping: built-in providers are always available
     final hasAnyProvider =
         searchProviders.isNotEmpty || _builtInProviders.isNotEmpty;
 
     String currentProviderName = context.l10n.extensionDefaultProvider;
     if (settings.searchProvider != null &&
         settings.searchProvider!.isNotEmpty) {
-      // Check built-in first
       if (_builtInProviders.containsKey(settings.searchProvider)) {
         currentProviderName = _builtInProviders[settings.searchProvider]!;
       } else {

lib/screens/settings/library_settings_page.dart

@@ -23,21 +23,15 @@ class _LibrarySettingsPageState extends ConsumerState<LibrarySettingsPage> {
   int _androidSdkVersion = 0;
   bool _hasStoragePermission = false;
 
-  /// Convert SAF content URI to a readable display path
   String _getDisplayPath(String path) {
     if (!path.startsWith('content://')) return path;
-    // Extract the path portion from SAF tree URI
-    // e.g. content://com.android.externalstorage.documents/tree/primary%3AMusic
-    // -> /storage/emulated/0/Music
     try {
       final uri = Uri.parse(path);
-      final treePath =
-          uri.pathSegments.last; // e.g. "primary:Music" or "primary%3AMusic"
+      final treePath = uri.pathSegments.last;
       final decoded = Uri.decodeComponent(treePath);
       if (decoded.startsWith('primary:')) {
         return '/storage/emulated/0/${decoded.substring('primary:'.length)}';
       }
-      // For SD card or other volumes, just show the decoded path
       return decoded;
     } catch (_) {
       return path;

lib/screens/settings/log_screen.dart

@@ -136,7 +136,7 @@ class _LogScreenState extends State<LogScreen> {
     final logs = _filteredLogs;
 
     return PopScope(
-      canPop: true, // Always allow back gesture
+      canPop: true,
       child: Scaffold(
         body: CustomScrollView(
           controller: _scrollController,

lib/screens/settings/options_settings_page.dart

@@ -19,7 +19,7 @@ class OptionsSettingsPage extends ConsumerWidget {
     final topPadding = normalizedHeaderTopPadding(context);
 
     return PopScope(
-      canPop: true, // Always allow back gesture
+      canPop: true,
       child: Scaffold(
         body: CustomScrollView(
           slivers: [

lib/screens/settings/provider_priority_page.dart

@@ -340,12 +340,6 @@ class _ProviderItem extends StatelessWidget {
           icon: Icons.graphic_eq,
           isBuiltIn: true,
         );
-      case 'youtube':
-        return _ProviderInfo(
-          name: 'YouTube',
-          icon: Icons.play_circle_outline,
-          isBuiltIn: true,
-        );
       default:
         return _ProviderInfo(
           name: provider,

lib/screens/settings/settings_tab.dart

@@ -13,6 +13,7 @@ import 'package:spotiflac_android/screens/settings/donate_page.dart';
 import 'package:spotiflac_android/screens/settings/log_screen.dart';
 import 'package:spotiflac_android/utils/app_bar_layout.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 
 class SettingsTab extends ConsumerWidget {
   const SettingsTab({super.key});
@@ -150,26 +151,6 @@ class SettingsTab extends ConsumerWidget {
 
   void _navigateTo(BuildContext context, Widget page) {
     FocusManager.instance.primaryFocus?.unfocus();
-
-    Navigator.of(context).push(
-      PageRouteBuilder(
-        pageBuilder: (context, animation, secondaryAnimation) => page,
-        transitionsBuilder: (context, animation, secondaryAnimation, child) {
-          const begin = Offset(1.0, 0.0);
-          const end = Offset.zero;
-          const curve = Curves.easeInOut;
-          var tween = Tween(
-            begin: begin,
-            end: end,
-          ).chain(CurveTween(curve: curve));
-          return SlideTransition(
-            position: animation.drive(tween),
-            child: child,
-          );
-        },
-        transitionDuration: const Duration(milliseconds: 300),
-        reverseTransitionDuration: const Duration(milliseconds: 250),
-      ),
-    );
+    Navigator.of(context).push(slidePageRoute(page: page));
   }
 }

lib/screens/setup_screen.dart

@@ -441,14 +441,9 @@ class _SetupScreenState extends ConsumerState<SetupScreen> {
 
   void _nextPage() {
     bool canProceed = false;
-    // Step 0 is Welcome, always can proceed
     if (_currentStep == 0) {
       canProceed = true;
     } else {
-      // Logic for other steps (offset by 1 because of welcome step)
-      // Step 1: Storage
-      // Step 2: Notification (if android 13+) OR Directory
-      // etc.
       canProceed = _isStepCompleted(_currentStep);
     }
 
@@ -470,9 +465,8 @@ class _SetupScreenState extends ConsumerState<SetupScreen> {
   }
 
   bool _isStepCompleted(int step) {
-    if (step == 0) return true; // Welcome
+    if (step == 0) return true;
 
-    // Adjust step index for logic because we added Welcome at 0
     final logicStep = step - 1;
 
     if (_androidSdkVersion >= 33) {

lib/screens/store_tab.dart

@@ -4,6 +4,7 @@ import 'package:path_provider/path_provider.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/store_provider.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
+import 'package:spotiflac_android/widgets/animation_utils.dart';
 import 'package:spotiflac_android/screens/store/extension_details_screen.dart';
 import 'package:spotiflac_android/utils/app_bar_layout.dart';
 
@@ -58,7 +59,9 @@ class _StoreTabState extends ConsumerState<StoreTab> {
     final downloadingId = ref.watch(
       storeProvider.select((s) => s.downloadingId),
     );
-    final hasRegistryUrl = ref.watch(storeProvider.select((s) => s.hasRegistryUrl));
+    final hasRegistryUrl = ref.watch(
+      storeProvider.select((s) => s.hasRegistryUrl),
+    );
     final registryUrl = ref.watch(storeProvider.select((s) => s.registryUrl));
     final filteredExtensions = StoreState(
       extensions: extensions,
@@ -139,7 +142,7 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                           prefixIcon: const Icon(Icons.search),
                           suffixIcon: value.text.isNotEmpty
                               ? IconButton(
-                                  tooltip: 'Clear search',
+                                  tooltip: 'Clear',
                                   icon: const Icon(Icons.clear),
                                   onPressed: () {
                                     _searchController.clear();
@@ -151,23 +154,37 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                               : null,
                           border: OutlineInputBorder(
                             borderRadius: BorderRadius.circular(28),
-                            borderSide: BorderSide.none,
+                            borderSide: BorderSide(
+                              color: colorScheme.outlineVariant,
+                            ),
+                          ),
+                          enabledBorder: OutlineInputBorder(
+                            borderRadius: BorderRadius.circular(28),
+                            borderSide: BorderSide(
+                              color: colorScheme.outlineVariant,
+                            ),
+                          ),
+                          focusedBorder: OutlineInputBorder(
+                            borderRadius: BorderRadius.circular(28),
+                            borderSide: BorderSide(
+                              color: colorScheme.primary,
+                              width: 2,
+                            ),
                           ),
                           filled: true,
-                          fillColor:
-                              Theme.of(context).brightness == Brightness.dark
-                              ? Color.alphaBlend(
-                                  Colors.white.withValues(alpha: 0.08),
-                                  colorScheme.surface,
-                                )
-                              : colorScheme.surfaceContainerHighest,
+                          fillColor: colorScheme.surfaceContainerHighest,
                           contentPadding: const EdgeInsets.symmetric(
-                            horizontal: 16,
-                            vertical: 12,
+                            horizontal: 20,
+                            vertical: 16,
                           ),
                         ),
                         onChanged: (value) {
-                          ref.read(storeProvider.notifier).setSearchQuery(value);
+                          ref
+                              .read(storeProvider.notifier)
+                              .setSearchQuery(value);
+                        },
+                        onTapOutside: (_) {
+                          FocusScope.of(context).unfocus();
                         },
                       );
                     },
@@ -231,7 +248,8 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                       _CategoryChip(
                         label: context.l10n.storeFilterIntegration,
                         icon: Icons.link,
-                        isSelected: selectedCategory == StoreCategory.integration,
+                        isSelected:
+                            selectedCategory == StoreCategory.integration,
                         onTap: () => ref
                             .read(storeProvider.notifier)
                             .setCategory(StoreCategory.integration),
@@ -242,8 +260,11 @@ class _StoreTabState extends ConsumerState<StoreTab> {
               ),
 
               if (isLoading && extensions.isEmpty)
-                const SliverFillRemaining(
-                  child: Center(child: CircularProgressIndicator()),
+                const SliverToBoxAdapter(
+                  child: Padding(
+                    padding: EdgeInsets.all(16),
+                    child: TrackListSkeleton(itemCount: 6),
+                  ),
                 )
               else if (error != null && extensions.isEmpty)
                 SliverFillRemaining(child: _buildErrorState(error, colorScheme))
@@ -309,9 +330,9 @@ class _StoreTabState extends ConsumerState<StoreTab> {
             const SizedBox(height: 24),
             Text(
               context.l10n.storeAddRepoTitle,
-              style: Theme.of(context).textTheme.headlineSmall?.copyWith(
-                fontWeight: FontWeight.bold,
-              ),
+              style: Theme.of(
+                context,
+              ).textTheme.headlineSmall?.copyWith(fontWeight: FontWeight.bold),
               textAlign: TextAlign.center,
             ),
             const SizedBox(height: 32),
@@ -322,16 +343,23 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                 labelText: context.l10n.storeRepoUrlLabel,
                 prefixIcon: const Icon(Icons.link),
                 border: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
+                  borderRadius: BorderRadius.circular(28),
+                  borderSide: BorderSide(color: colorScheme.outlineVariant),
                 ),
                 enabledBorder: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
-                  borderSide: BorderSide(color: colorScheme.outline),
+                  borderRadius: BorderRadius.circular(28),
+                  borderSide: BorderSide(color: colorScheme.outlineVariant),
                 ),
                 focusedBorder: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
+                  borderRadius: BorderRadius.circular(28),
                   borderSide: BorderSide(color: colorScheme.primary, width: 2),
                 ),
+                filled: true,
+                fillColor: colorScheme.surfaceContainerHighest,
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 20,
+                  vertical: 16,
+                ),
               ),
               keyboardType: TextInputType.url,
               autocorrect: false,
@@ -347,7 +375,11 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                 ),
                 child: Row(
                   children: [
-                    Icon(Icons.error_outline, size: 20, color: colorScheme.onErrorContainer),
+                    Icon(
+                      Icons.error_outline,
+                      size: 20,
+                      color: colorScheme.onErrorContainer,
+                    ),
                     const SizedBox(width: 8),
                     Expanded(
                       child: Text(
@@ -416,7 +448,31 @@ class _StoreTabState extends ConsumerState<StoreTab> {
                 labelText: context.l10n.storeNewRepoUrlLabel,
                 prefixIcon: const Icon(Icons.link),
                 border: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
+                  borderRadius: BorderRadius.circular(28),
+                  borderSide: BorderSide(
+                    color: Theme.of(context).colorScheme.outlineVariant,
+                  ),
+                ),
+                enabledBorder: OutlineInputBorder(
+                  borderRadius: BorderRadius.circular(28),
+                  borderSide: BorderSide(
+                    color: Theme.of(context).colorScheme.outlineVariant,
+                  ),
+                ),
+                focusedBorder: OutlineInputBorder(
+                  borderRadius: BorderRadius.circular(28),
+                  borderSide: BorderSide(
+                    color: Theme.of(context).colorScheme.primary,
+                    width: 2,
+                  ),
+                ),
+                filled: true,
+                fillColor: Theme.of(
+                  context,
+                ).colorScheme.surfaceContainerHighest,
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 20,
+                  vertical: 16,
                 ),
               ),
               keyboardType: TextInputType.url,
@@ -503,7 +559,9 @@ class _StoreTabState extends ConsumerState<StoreTab> {
           ),
           const SizedBox(height: 16),
           Text(
-            hasFilters ? context.l10n.storeEmptyNoResults : context.l10n.storeEmptyNoExtensions,
+            hasFilters
+                ? context.l10n.storeEmptyNoResults
+                : context.l10n.storeEmptyNoExtensions,
             style: Theme.of(context).textTheme.titleMedium?.copyWith(
               color: colorScheme.onSurfaceVariant,
             ),

lib/screens/track_metadata_screen.dart

@@ -23,6 +23,7 @@ import 'package:spotiflac_android/utils/logger.dart';
 import 'package:spotiflac_android/utils/lyrics_metadata_helper.dart';
 import 'package:spotiflac_android/utils/mime_utils.dart';
 import 'package:spotiflac_android/utils/string_utils.dart';
+import 'package:spotiflac_android/widgets/audio_analysis_widget.dart';
 
 final _log = AppLogger('TrackMetadata');
 
@@ -59,19 +60,19 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
   bool _fileExists = false;
   bool _hasCheckedFile = false;
   int? _fileSize;
-  String? _lyrics; // Cleaned lyrics for display (no timestamps)
-  String? _rawLyrics; // Raw LRC with timestamps for embedding
+  String? _lyrics;
+  String? _rawLyrics;
   bool _lyricsLoading = false;
   String? _lyricsError;
   String? _lyricsSource;
   bool _showTitleInAppBar = false;
   bool _lyricsEmbedded = false;
-  bool _isEmbedding = false; // Track embed operation in progress
+  bool _isEmbedding = false;
   bool _isInstrumental = false;
-  bool _isConverting = false; // Track convert operation in progress
+  bool _isConverting = false;
   bool _hasMetadataChanges = false;
   bool _hasLoadedResolvedAudioMetadata = false;
-  Map<String, dynamic>? _editedMetadata; // Overrides after metadata edit
+  Map<String, dynamic>? _editedMetadata;
   String? _embeddedCoverPreviewPath;
   final ScrollController _scrollController = ScrollController();
   static final RegExp _lrcTimestampPattern = RegExp(
@@ -307,12 +308,10 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         storedQuality: _quality,
       );
 
-      // Fill in album name from file tags if stored value is empty
       final needsAlbum =
           resolvedAlbum != null &&
           resolvedAlbum.isNotEmpty &&
           (albumName.isEmpty);
-      // Fill in duration from file if stored value is missing/zero
       final needsDuration =
           resolvedDuration != null &&
           resolvedDuration > 0 &&
@@ -519,6 +518,8 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
 
   String get _filePath =>
       _isLocalItem ? _localLibraryItem!.filePath : _downloadItem!.filePath;
+  String get _coverHeroTag =>
+      _isLocalItem ? 'cover_lib_$_itemId' : 'cover_$_itemId';
   String? get _coverUrl =>
       _isLocalItem ? null : normalizeRemoteHttpUrl(_downloadItem!.coverUrl);
   String? get _localCoverPath =>
@@ -527,7 +528,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
   String get _service => _isLocalItem ? 'local' : _downloadItem!.service;
   DateTime get _addedAt {
     if (_isLocalItem) {
-      // Use file modification time if available, otherwise fall back to scannedAt
       final modTime = _localLibraryItem!.fileModTime;
       if (modTime != null && modTime > 0) {
         return DateTime.fromMillisecondsSinceEpoch(modTime);
@@ -577,7 +577,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
   String get cleanFilePath {
     var path = _filePath;
     if (path.startsWith('EXISTS:')) path = path.substring(7);
-    // Strip CUE virtual path suffix for filesystem operations
     if (isCueVirtualPath(path)) path = stripCueTrackSuffix(path);
     return path;
   }
@@ -770,6 +769,11 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
 
                   _buildLyricsCard(context, colorScheme),
 
+                  if (_fileExists) ...[
+                    const SizedBox(height: 16),
+                    AudioAnalysisCard(filePath: _filePath),
+                  ],
+
                   const SizedBox(height: 24),
 
                   _buildActionButtons(context, ref, colorScheme, _fileExists),
@@ -790,38 +794,42 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
     double expandedHeight,
     bool showContent,
   ) {
-    return Stack(
-      fit: StackFit.expand,
-      children: [
-        if (_hasPath(_embeddedCoverPreviewPath))
-          Image.file(
+    final coverChild = _hasPath(_embeddedCoverPreviewPath)
+        ? Image.file(
             File(_embeddedCoverPreviewPath!),
             fit: BoxFit.cover,
             errorBuilder: (_, _, _) => Container(color: colorScheme.surface),
           )
-        else if (_coverUrl != null)
-          CachedNetworkImage(
+        : _coverUrl != null
+        ? CachedNetworkImage(
             imageUrl: _coverUrl!,
             fit: BoxFit.cover,
             cacheManager: CoverCacheManager.instance,
             placeholder: (_, _) => Container(color: colorScheme.surface),
             errorWidget: (_, _, _) => Container(color: colorScheme.surface),
           )
-        else if (_localCoverPath != null && _localCoverPath!.isNotEmpty)
-          Image.file(
+        : _localCoverPath != null && _localCoverPath!.isNotEmpty
+        ? Image.file(
             File(_localCoverPath!),
             fit: BoxFit.cover,
             errorBuilder: (_, _, _) => Container(color: colorScheme.surface),
           )
-        else
-          Container(
+        : Container(
             color: colorScheme.surfaceContainerHighest,
             child: Icon(
               Icons.music_note,
               size: 80,
               color: colorScheme.onSurfaceVariant,
             ),
-          ),
+          );
+
+    return Stack(
+      fit: StackFit.expand,
+      children: [
+        Hero(
+          tag: _coverHeroTag,
+          child: Material(color: Colors.transparent, child: coverChild),
+        ),
         Positioned(
           left: 0,
           right: 0,
@@ -1614,7 +1622,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
                       ),
                     ),
                   ),
-                  // Show "Embed Lyrics" button if lyrics are from online (not already embedded)
                   if (!_lyricsEmbedded && _fileExists) ...[
                     const SizedBox(height: 16),
                     Center(
@@ -1662,7 +1669,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
     try {
       final durationMs = (duration ?? 0) * 1000;
 
-      // First, check if lyrics are embedded in the file
       if (_fileExists) {
         final embeddedResult =
             await PlatformBridge.getLyricsLRCWithSource(
@@ -1696,12 +1702,11 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         }
       }
 
-      // No embedded lyrics, fetch from online
       final result = await PlatformBridge.getLyricsLRCWithSource(
         _spotifyId ?? '',
         trackName,
         artistName,
-        filePath: null, // Don't check file again
+        filePath: null,
         durationMs: durationMs,
       ).timeout(const Duration(seconds: 20));
 
@@ -1727,9 +1732,9 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           final cleanLyrics = _cleanLrcForDisplay(lrcText);
           setState(() {
             _lyrics = cleanLyrics;
-            _rawLyrics = lrcText; // Keep raw LRC with timestamps for embedding
+            _rawLyrics = lrcText;
             _lyricsSource = source.isNotEmpty ? source : null;
-            _lyricsEmbedded = false; // Lyrics from online, not embedded
+            _lyricsEmbedded = false;
             _lyricsLoading = false;
           });
         }
@@ -1756,7 +1761,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
 
     setState(() => _isEmbedding = true);
 
-    // Capture l10n strings before async gaps to avoid use_build_context_synchronously
     final l10nFailedToWriteStorage = context.l10n.snackbarFailedToWriteStorage;
     final l10nFailedToEmbedLyrics = context.l10n.snackbarFailedToEmbedLyrics;
     final l10nUnsupportedFormat = context.l10n.snackbarUnsupportedAudioFormat;
@@ -1986,7 +1990,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           return;
         }
 
-        // Write temp file to SAF tree
         final treeUri = _downloadItem?.downloadTreeUri;
         final relativeDir = _downloadItem?.safRelativeDir ?? '';
         if (treeUri != null && treeUri.isNotEmpty) {
@@ -2033,7 +2036,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         return;
       }
 
-      // Regular file path
       final dir = _getFileDirectory();
       final outputPath = '$dir${Platform.pathSeparator}$baseName.jpg';
 
@@ -2126,7 +2128,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           return;
         }
 
-        // Write temp file to SAF tree
         final treeUri = _downloadItem?.downloadTreeUri;
         final relativeDir = _downloadItem?.safRelativeDir ?? '';
         if (treeUri != null && treeUri.isNotEmpty) {
@@ -2182,7 +2183,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         return;
       }
 
-      // Regular file path
       final dir = _getFileDirectory();
       final outputPath = '$dir${Platform.pathSeparator}$baseName.lrc';
 
@@ -2257,7 +2257,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       final result = await PlatformBridge.reEnrichFile(request);
       final method = result['method'] as String?;
 
-      // Update local UI state with enriched metadata from online search
       final enriched = result['enriched_metadata'] as Map<String, dynamic>?;
       if (enriched != null && mounted) {
         setState(() {
@@ -2344,7 +2343,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           );
         }
 
-        // For SAF files, copy processed temp file back
         if (ffmpegResult != null && tempPath != null && safUri != null) {
           final ok = await PlatformBridge.writeTempToSaf(ffmpegResult, safUri);
           if (!ok && mounted) {
@@ -2357,7 +2355,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
                 ),
               ),
             );
-            // Cleanup temp files
             if (_hasPath(downloadedCoverPath)) {
               try {
                 await File(downloadedCoverPath!).delete();
@@ -2375,7 +2372,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           }
         }
 
-        // Cleanup temp files
         if (tempPath != null && tempPath.isNotEmpty) {
           try {
             await File(tempPath).delete();
@@ -2397,7 +2393,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           );
         }
 
-        // Cleanup temp cover from Go backend
         if (_hasPath(downloadedCoverPath)) {
           try {
             await File(downloadedCoverPath!).delete();
@@ -2462,7 +2457,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
     for (final line in lines) {
       var cleaned = line.trim();
 
-      // Skip metadata tags
       if (_lrcMetadataPattern.hasMatch(cleaned) &&
           !_lrcBackgroundLinePattern.hasMatch(cleaned)) {
         continue;
@@ -2474,7 +2468,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         cleaned = bgMatch.group(1)?.trim() ?? '';
       }
 
-      // Remove line timestamp, inline word-by-word timestamps, and speaker prefix.
       cleaned = cleaned.replaceAll(_lrcTimestampPattern, '').trim();
       cleaned = cleaned.replaceAll(_lrcInlineTimestampPattern, '');
       cleaned = cleaned.replaceFirst(_lrcSpeakerPrefixPattern, '');
@@ -2685,11 +2678,9 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
 
   /// Whether the current file is a CUE sheet (or CUE-referenced)
   bool get _isCueFile {
-    // Check if the raw path has a CUE virtual path suffix
     if (isCueVirtualPath(rawFilePath)) return true;
     final lower = cleanFilePath.toLowerCase();
     if (lower.endsWith('.cue')) return true;
-    // Check if local library item has cue+ format
     if (_isLocalItem && _localLibraryItem != null) {
       final format = _localLibraryItem!.format ?? '';
       if (format.startsWith('cue+')) return true;
@@ -2815,7 +2806,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
     final currentFormat = _currentFileFormat;
     final isLosslessSource = currentFormat == 'FLAC' || currentFormat == 'M4A';
 
-    // Build available target formats based on source
     final formats = <String>[];
     if (currentFormat == 'FLAC') {
       formats.addAll(['ALAC', 'MP3', 'Opus']);
@@ -2906,7 +2896,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
                       }).toList(),
                     ),
 
-                    // Only show bitrate for lossy targets
                     if (!isLosslessTarget) ...[
                       const SizedBox(height: 16),
                       Text(
@@ -2933,7 +2922,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
                       ),
                     ],
 
-                    // Show lossless indicator
                     if (isLosslessTarget && isLosslessSource) ...[
                       const SizedBox(height: 16),
                       Row(
@@ -2991,14 +2979,12 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
   }
 
   void _showCueSplitSheet(BuildContext context) async {
-    // Strip the #trackNN suffix from virtual CUE paths to get the real .cue path
     var cuePath = cleanFilePath;
     final trackSuffix = RegExp(r'#track\d+$');
     if (trackSuffix.hasMatch(cuePath)) {
       cuePath = cuePath.replaceFirst(trackSuffix, '');
     }
 
-    // Show loading indicator
     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(content: Text(context.l10n.snackbarLoadingCueSheet)),
     );
@@ -3093,7 +3079,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
                         ),
                   ),
                   const SizedBox(height: 16),
-                  // Track list preview (scrollable, max 200px)
                   ConstrainedBox(
                     constraints: const BoxConstraints(maxHeight: 200),
                     child: ListView.builder(
@@ -3315,7 +3300,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         workingAudioPath = tempPath;
       }
 
-      // Determine output directory
       final String outputDir;
       final treeUri = !_isLocalItem
           ? (_downloadItem?.downloadTreeUri ?? '')
@@ -3342,7 +3326,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       if (!mounted) return;
       _showLongSnackBarMessage(_l10nCueSplitSplitting(1, tracks.length));
 
-      // Extract cover from audio file for embedding
       String? coverPath;
       try {
         final tempDir = await getTemporaryDirectory();
@@ -3385,11 +3368,9 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         for (final path in finalOutputPaths) {
           if (path.toLowerCase().endsWith('.flac')) {
             try {
-              // Read existing metadata first
               final metadata = await PlatformBridge.readFileMetadata(path);
               if (metadata['error'] == null) {
                 final fields = <String, String>{'cover_path': coverPath};
-                // Preserve existing fields
                 for (final entry in metadata.entries) {
                   if (entry.key == 'error' || entry.value == null) continue;
                   final v = entry.value.toString().trim();
@@ -3415,7 +3396,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         finalOutputPaths = exportedUris;
       }
 
-      // Cleanup cover temp
       if (coverPath != null) {
         try {
           await File(coverPath).delete();
@@ -3437,7 +3417,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         _showSnackBarMessage(_l10nCueSplitFailed);
       }
     } finally {
-      // Cleanup SAF temp audio copy
       if (safTempAudioPath != null) {
         try {
           await File(safTempAudioPath).delete();
@@ -3556,7 +3535,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       String? safTempPath;
 
       if (isSaf) {
-        // Copy SAF file to temp for processing
         safTempPath = await PlatformBridge.copyContentUriToTemp(cleanFilePath);
         if (safTempPath == null) {
           if (mounted) {
@@ -3576,10 +3554,9 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
         bitrate: bitrate,
         metadata: metadata,
         coverPath: coverPath,
-        deleteOriginal: !isSaf, // Don't delete temp copy for SAF, we handle it
+        deleteOriginal: !isSaf,
       );
 
-      // Cleanup cover temp
       if (coverPath != null) {
         try {
           await File(coverPath).delete();
@@ -3587,7 +3564,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       }
 
       if (newPath == null) {
-        // Cleanup SAF temp if needed
         if (safTempPath != null) {
           try {
             await File(safTempPath).delete();
@@ -3649,7 +3625,7 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
             newExt = '.flac';
             mimeType = 'audio/flac';
             break;
-          default: // mp3
+          default:
             newExt = '.mp3';
             mimeType = 'audio/mpeg';
             break;
@@ -3689,7 +3665,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           _log.w('Converted SAF file created but failed deleting original URI');
         }
 
-        // Update history with new SAF info
         if (!_isLocalItem) {
           await HistoryDatabase.instance.updateFilePath(
             _downloadItem!.id,
@@ -3701,7 +3676,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           await ref.read(downloadHistoryProvider.notifier).reloadFromStorage();
         }
 
-        // Cleanup temp files
         try {
           await File(newPath).delete();
         } catch (_) {}
@@ -3711,7 +3685,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
           } catch (_) {}
         }
       } else {
-        // Regular file: update history with new path
         if (!_isLocalItem) {
           await HistoryDatabase.instance.updateFilePath(
             _downloadItem!.id,
@@ -3730,7 +3703,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
             content: Text(context.l10n.trackConvertSuccess(targetFormat)),
           ),
         );
-        // Pop and let the caller refresh
         Navigator.pop(context, true);
       }
     } catch (e) {
@@ -3748,7 +3720,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
     WidgetRef ref,
     ColorScheme colorScheme,
   ) async {
-    // Read current metadata from file, fall back to item data on failure
     Map<String, dynamic>? fileMetadata;
     try {
       final result = await PlatformBridge.readFileMetadata(cleanFilePath);
@@ -3759,7 +3730,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       debugPrint('readFileMetadata failed, using item data: $e');
     }
 
-    // Build initial values map — prefer file metadata, fall back to item data
     String val(String key, String? fallback) {
       final v = fileMetadata?[key]?.toString();
       return (v != null && v.isNotEmpty) ? v : (fallback ?? '');
@@ -3805,7 +3775,6 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
       ScaffoldMessenger.of(this.context).showSnackBar(
         SnackBar(content: Text(this.context.l10n.snackbarMetadataSaved)),
       );
-      // Re-read metadata from file to refresh the display
       try {
         final refreshed = await PlatformBridge.readFileMetadata(cleanFilePath);
         setState(() => _editedMetadata = refreshed);
@@ -4050,10 +4019,8 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
   String? _currentCoverTempDir;
   bool _loadingCurrentCover = false;
 
-  // Auto-fill field selection — which fields the user wants to fetch
   final Set<String> _autoFillFields = {};
 
-  // All auto-fillable fields and their mapping
   static const _fieldDefs = <String, String>{
     'title': 'title',
     'artist': 'artist',
@@ -4679,7 +4646,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
         throw StateError('No metadata match resolved for auto-fill');
       }
 
-      // Extract basic metadata from search result
       final enriched = <String, String>{
         'title': (selectedBest['name'] ?? '').toString(),
         'artist': (selectedBest['artists'] ?? selectedBest['artist'] ?? '')
@@ -4757,7 +4723,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
 
       if (!mounted) return;
 
-      // Fetch genre/label/copyright from Deezer extended metadata
       if (needsExtended && deezerId != null) {
         try {
           final extended = await PlatformBridge.getDeezerExtendedMetadata(
@@ -4775,10 +4740,9 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
 
       if (!mounted) return;
 
-      // Apply selected fields to controllers
       var filledCount = 0;
       for (final key in _autoFillFields) {
-        if (key == 'cover') continue; // Handle cover separately below
+        if (key == 'cover') continue;
         final value = enriched[key];
         if (value != null &&
             value.isNotEmpty &&
@@ -4792,7 +4756,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
         }
       }
 
-      // Handle cover art download
       if (_autoFillFields.contains('cover')) {
         final coverUrl =
             (selectedBest['cover_url'] ?? selectedBest['images'] ?? '')
@@ -5071,7 +5034,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
           return;
         }
 
-        // For SAF files, copy the processed temp file back
         if (tempPath != null && safUri != null) {
           final ok = await PlatformBridge.writeTempToSaf(ffmpegResult, safUri);
           if (!ok && mounted) {
@@ -5184,7 +5146,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
                   ),
                   _field('Genre', _genreCtrl),
                   _field('ISRC', _isrcCtrl),
-                  // Advanced fields toggle
                   Padding(
                     padding: const EdgeInsets.only(top: 8, bottom: 4),
                     child: InkWell(
@@ -5282,7 +5243,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
                 ),
               ),
               const SizedBox(height: 8),
-              // Quick select buttons
               Padding(
                 padding: const EdgeInsets.symmetric(horizontal: 12),
                 child: Row(
@@ -5302,7 +5262,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
                 ),
               ),
               const SizedBox(height: 8),
-              // Field chips
               Padding(
                 padding: const EdgeInsets.symmetric(horizontal: 12),
                 child: Wrap(
@@ -5339,7 +5298,6 @@ class _EditMetadataSheetState extends State<_EditMetadataSheet> {
                 ),
               ),
               const SizedBox(height: 10),
-              // Fetch button
               Padding(
                 padding: const EdgeInsets.only(left: 12, right: 12, bottom: 12),
                 child: SizedBox(

lib/services/csv_import_service.dart

@@ -198,8 +198,8 @@ class CsvImportService {
             artistName: artistName ?? 'Unknown Artist',
             albumName: albumName ?? 'Unknown Album',
             isrc: isrc,
-            duration: 0, // Will be updated by enrichment later
-            coverUrl: null, // Will be fetched by enrichment
+            duration: 0,
+            coverUrl: null,
           ),
         );
       }

lib/services/ffmpeg_service.dart

@@ -1437,7 +1437,6 @@ class FFmpegService {
     final cmdBuffer = StringBuffer();
     cmdBuffer.write('-i "$inputPath" ');
 
-    // Cover art as second input for M4A attached picture
     final hasCover =
         coverPath != null &&
         coverPath.trim().isNotEmpty &&
@@ -1455,7 +1454,6 @@ class FFmpegService {
     cmdBuffer.write('-c:a alac ');
     cmdBuffer.write('-map_metadata -1 ');
 
-    // Embed M4A metadata tags
     final m4aTags = _convertToM4aTags(metadata);
     for (final entry in m4aTags.entries) {
       final sanitized = entry.value.replaceAll('"', '\\"');
@@ -1764,7 +1762,6 @@ class FFmpegService {
 
     final outputPaths = <String>[];
     final inputExt = audioPath.toLowerCase().split('.').last;
-    // For lossless formats, keep as FLAC; for others, keep original format
     final outputExt =
         (inputExt == 'flac' ||
             inputExt == 'wav' ||
@@ -1836,14 +1833,10 @@ class FFmpegService {
       final result = await _execute(command);
       if (!result.success) {
         _log.e('CUE split failed for track ${track.number}: ${result.output}');
-        // Continue with remaining tracks instead of failing completely
         continue;
       }
 
-      // Embed cover art if available (for FLAC output)
       if (coverPath != null && coverPath.isNotEmpty && outputExt == 'flac') {
-        // Use the Go backend for FLAC cover embedding via PlatformBridge
-        // (handled by the caller)
       }
 
       outputPaths.add(outputPath);

lib/services/history_database.dart

@@ -328,6 +328,20 @@ class HistoryDatabase {
     );
   }
 
+  Future<void> upsertBatch(List<Map<String, dynamic>> items) async {
+    if (items.isEmpty) return;
+    final db = await database;
+    final batch = db.batch();
+    for (final json in items) {
+      batch.insert(
+        'history',
+        _jsonToDbRow(json),
+        conflictAlgorithm: ConflictAlgorithm.replace,
+      );
+    }
+    await batch.commit(noResult: true);
+  }
+
   /// Get all history items ordered by download date (newest first)
   Future<List<Map<String, dynamic>>> getAll({int? limit, int? offset}) async {
     final db = await database;
@@ -532,6 +546,29 @@ class HistoryDatabase {
     return rows.map((r) => Map<String, dynamic>.from(r)).toList();
   }
 
+  Future<List<Map<String, dynamic>>> getEntriesWithPathsPage({
+    required int limit,
+    int offset = 0,
+  }) async {
+    final db = await database;
+    final rows = await db.query(
+      'history',
+      columns: [
+        'id',
+        'file_path',
+        'storage_mode',
+        'download_tree_uri',
+        'saf_relative_dir',
+        'saf_file_name',
+      ],
+      where: 'file_path IS NOT NULL AND file_path != ""',
+      orderBy: 'downloaded_at DESC, id DESC',
+      limit: limit,
+      offset: offset,
+    );
+    return rows.map((r) => Map<String, dynamic>.from(r)).toList();
+  }
+
   /// Delete multiple entries by IDs
   Future<int> deleteByIds(List<String> ids) async {
     if (ids.isEmpty) return 0;

lib/services/library_database.dart

@@ -255,20 +255,41 @@ class LibraryDatabase {
   Future<void> upsertBatch(List<Map<String, dynamic>> items) async {
     if (items.isEmpty) return;
     final db = await database;
-    final batch = db.batch();
-
-    for (final json in items) {
-      batch.insert(
-        'library',
-        _jsonToDbRow(json),
-        conflictAlgorithm: ConflictAlgorithm.replace,
-      );
-    }
-
-    await batch.commit(noResult: true);
+    await db.transaction((txn) async {
+      final batch = txn.batch();
+      for (final json in items) {
+        batch.insert(
+          'library',
+          _jsonToDbRow(json),
+          conflictAlgorithm: ConflictAlgorithm.replace,
+        );
+      }
+      await batch.commit(noResult: true);
+    });
     _log.i('Batch inserted ${items.length} items');
   }
 
+  Future<void> replaceAll(List<Map<String, dynamic>> items) async {
+    final db = await database;
+    await db.transaction((txn) async {
+      await txn.delete('library');
+      if (items.isEmpty) {
+        return;
+      }
+
+      final batch = txn.batch();
+      for (final json in items) {
+        batch.insert(
+          'library',
+          _jsonToDbRow(json),
+          conflictAlgorithm: ConflictAlgorithm.replace,
+        );
+      }
+      await batch.commit(noResult: true);
+    });
+    _log.i('Replaced library with ${items.length} items');
+  }
+
   Future<List<Map<String, dynamic>>> getAll({int? limit, int? offset}) async {
     final db = await database;
     final rows = await db.query(

lib/services/platform_bridge.dart

@@ -83,24 +83,18 @@ class PlatformBridge {
 
   static Future<Map<String, dynamic>> getDownloadProgress() async {
     final result = await _channel.invokeMethod('getDownloadProgress');
-    return jsonDecode(result as String) as Map<String, dynamic>;
+    return _decodeMapResult(result);
   }
 
   static Future<Map<String, dynamic>> getAllDownloadProgress() async {
     final result = await _channel.invokeMethod('getAllDownloadProgress');
-    return jsonDecode(result as String) as Map<String, dynamic>;
+    return _decodeMapResult(result);
   }
 
   static Stream<Map<String, dynamic>> downloadProgressStream() {
-    return _downloadProgressEvents.receiveBroadcastStream().map((event) {
-      if (event is String) {
-        return jsonDecode(event) as Map<String, dynamic>;
-      }
-      if (event is Map) {
-        return Map<String, dynamic>.from(event);
-      }
-      return const <String, dynamic>{};
-    });
+    return _downloadProgressEvents.receiveBroadcastStream().map(
+      _decodeMapResult,
+    );
   }
 
   static Future<void> exitApp() async {
@@ -1087,7 +1081,6 @@ class PlatformBridge {
     }
   }
 
-  /// Set the directory for caching extracted cover art
   static Future<void> setLibraryCoverCacheDir(String cacheDir) async {
     _log.i('setLibraryCoverCacheDir: $cacheDir');
     await _channel.invokeMethod('setLibraryCoverCacheDir', {
@@ -1095,8 +1088,6 @@ class PlatformBridge {
     });
   }
 
-  /// Scan a folder for audio files and read their metadata
-  /// Returns a list of track metadata
   static Future<List<Map<String, dynamic>>> scanLibraryFolder(
     String folderPath,
   ) async {
@@ -1108,10 +1099,6 @@ class PlatformBridge {
     return list.map((e) => e as Map<String, dynamic>).toList();
   }
 
-  /// Perform an incremental scan of the library folder
-  /// Only scans files that are new or have changed since last scan
-  /// [existingFiles] is a map of filePath -> modTime (unix millis)
-  /// Returns IncrementalScanResult with scanned items, deleted paths, and skip count
   static Future<Map<String, dynamic>> scanLibraryFolderIncremental(
     String folderPath,
     Map<String, int> existingFiles,
@@ -1146,8 +1133,6 @@ class PlatformBridge {
     return list.map((e) => e as Map<String, dynamic>).toList();
   }
 
-  /// Incremental SAF tree scan - only scans new or modified files
-  /// Returns a map with 'files' (new/changed) and 'removedUris' (deleted files)
   static Future<Map<String, dynamic>> scanSafTreeIncremental(
     String treeUri,
     Map<String, int> existingFiles,
@@ -1173,8 +1158,6 @@ class PlatformBridge {
     return jsonDecode(result as String) as Map<String, dynamic>;
   }
 
-  /// Get last-modified timestamps for a list of SAF file URIs.
-  /// Returns map uri -> modTime (unix millis), only for files that still exist.
   static Future<Map<String, int>> getSafFileModTimes(List<String> uris) async {
     final result = await _channel.invokeMethod('getSafFileModTimes', {
       'uris': jsonEncode(uris),
@@ -1183,29 +1166,35 @@ class PlatformBridge {
     return map.map((key, value) => MapEntry(key, (value as num).toInt()));
   }
 
-  /// Get current library scan progress
   static Future<Map<String, dynamic>> getLibraryScanProgress() async {
     final result = await _channel.invokeMethod('getLibraryScanProgress');
-    return jsonDecode(result as String) as Map<String, dynamic>;
+    return _decodeMapResult(result);
   }
 
   static Stream<Map<String, dynamic>> libraryScanProgressStream() {
-    return _libraryScanProgressEvents.receiveBroadcastStream().map((event) {
-      if (event is String) {
-        return jsonDecode(event) as Map<String, dynamic>;
-      }
-      if (event is Map) {
-        return Map<String, dynamic>.from(event);
-      }
-      return const <String, dynamic>{};
-    });
+    return _libraryScanProgressEvents.receiveBroadcastStream().map(
+      _decodeMapResult,
+    );
   }
 
-  /// Cancel ongoing library scan
   static Future<void> cancelLibraryScan() async {
     await _channel.invokeMethod('cancelLibraryScan');
   }
 
+  static Map<String, dynamic> _decodeMapResult(dynamic result) {
+    if (result is Map) {
+      return Map<String, dynamic>.from(result);
+    }
+    if (result is String) {
+      if (result.isEmpty) return const <String, dynamic>{};
+      final decoded = jsonDecode(result);
+      if (decoded is Map) {
+        return Map<String, dynamic>.from(decoded);
+      }
+    }
+    return const <String, dynamic>{};
+  }
+
   // MARK: - iOS Security-Scoped Bookmark
 
   /// Create a security-scoped bookmark from a filesystem path picked by
@@ -1247,7 +1236,6 @@ class PlatformBridge {
     }
   }
 
-  /// Read metadata from a single audio file
   static Future<Map<String, dynamic>?> readAudioMetadata(
     String filePath,
   ) async {
@@ -1367,10 +1355,6 @@ class PlatformBridge {
     await _channel.invokeMethod('clearStoreCache');
   }
 
-  /// Parse a .cue file and return split information (track listing, timing, metadata).
-  /// Returns a map with: cue_path, audio_path, album, artist, genre, date, tracks[]
-  /// Each track has: number, title, artist, isrc, composer, start_sec, end_sec
-  /// [audioDir] optionally overrides the directory for audio file resolution (used for SAF).
   static Future<Map<String, dynamic>> parseCueSheet(
     String cuePath, {
     String audioDir = '',

lib/services/share_intent_service.dart

@@ -80,7 +80,6 @@ class ShareIntentService {
     bool isInitial = false,
   }) {
     for (final file in files) {
-      // Check both path and message - apps may share URL in either field
       final textsToCheck = [file.path, if (file.message != null) file.message!];
 
       for (final textToCheck in textsToCheck) {
@@ -100,13 +99,11 @@ class ShareIntentService {
   String? _extractMusicUrl(String text) {
     if (text.isEmpty) return null;
 
-    // Try Spotify URI first
     final uriMatch = _spotifyUriPattern.firstMatch(text);
     if (uriMatch != null) {
       return uriMatch.group(0);
     }
 
-    // Try all URL patterns
     final patterns = [
       _spotifyUrlPattern,
       _deezerUrlPattern,

lib/theme/app_theme.dart

@@ -89,9 +89,7 @@ class AppTheme {
 
   static CardThemeData _cardTheme(ColorScheme scheme) => CardThemeData(
     elevation: 0,
-    shape: RoundedRectangleBorder(
-      borderRadius: BorderRadius.circular(16),
-    ),
+    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
     color: scheme.surfaceContainerLow,
     surfaceTintColor: scheme.surfaceTint,
   );
@@ -148,9 +146,7 @@ class AppTheme {
   static InputDecorationTheme _inputDecorationTheme(ColorScheme scheme) =>
       InputDecorationTheme(
         filled: true,
-        fillColor: scheme.surfaceContainerHighest.withValues(
-          alpha: 0.3,
-        ),
+        fillColor: scheme.surfaceContainerHighest.withValues(alpha: 0.3),
         border: OutlineInputBorder(
           borderRadius: BorderRadius.circular(16),
           borderSide: BorderSide.none,
@@ -175,9 +171,7 @@ class AppTheme {
 
   static ListTileThemeData _listTileTheme(ColorScheme scheme) =>
       ListTileThemeData(
-        shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(16),
-        ),
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
         contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
       );
 
@@ -237,7 +231,7 @@ class AppTheme {
   );
 
   static ChipThemeData _chipTheme(ColorScheme scheme) => ChipThemeData(
-    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
+    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
     backgroundColor: scheme.surfaceContainerLow,
     selectedColor: scheme.secondaryContainer,
   );

lib/utils/clickable_metadata.dart

@@ -27,7 +27,6 @@ Future<void> navigateToArtist(
 
   final normalizedArtistId = _normalizeArtistId(artistId);
 
-  // If we have a valid artist ID already, navigate directly
   if (normalizedArtistId != null &&
       _canNavigateArtistDirectly(
         artistId: normalizedArtistId,
@@ -43,7 +42,6 @@ Future<void> navigateToArtist(
     return;
   }
 
-  // Search Deezer to resolve the artist ID
   _showLoadingSnackBar(context, 'Looking up artist...');
   try {
     final results = await PlatformBridge.searchDeezerAll(
@@ -60,7 +58,6 @@ Future<void> navigateToArtist(
       return;
     }
 
-    // Find best match - prefer exact name match (case-insensitive)
     Map<String, dynamic>? bestMatch;
     final lowerName = artistName.toLowerCase().trim();
     for (final a in artistList) {
@@ -113,7 +110,6 @@ Future<void> navigateToAlbum(
 }) async {
   if (albumName.isEmpty) return;
 
-  // If we have a valid album ID already, navigate directly
   if (albumId != null &&
       albumId.isNotEmpty &&
       albumId != 'unknown' &&
@@ -128,16 +124,13 @@ Future<void> navigateToAlbum(
     return;
   }
 
-  // If it's extension-based content without an ID, can't search Deezer for it
   if (extensionId != null) {
     _showUnavailable(context, 'Album');
     return;
   }
 
-  // Search Deezer to resolve the album ID
   _showLoadingSnackBar(context, 'Looking up album...');
   try {
-    // Build search query: "albumName artistName" for better accuracy
     final query = artistName != null && artistName.isNotEmpty
         ? '$albumName $artistName'
         : albumName;
@@ -156,7 +149,6 @@ Future<void> navigateToAlbum(
       return;
     }
 
-    // Find best match - prefer exact name match (case-insensitive)
     Map<String, dynamic>? bestMatch;
     final lowerName = albumName.toLowerCase().trim();
     for (final a in albumList) {
@@ -225,11 +217,19 @@ void _pushAlbumScreen(
   String? coverUrl,
   String? extensionId,
 }) {
+  // Built-in providers (tidal, qobuz, deezer) use AlbumScreen which
+  // detects the provider from the album ID prefix. Only true JS extensions
+  // should use ExtensionAlbumScreen.
+  const builtInProviders = {'tidal', 'qobuz', 'deezer'};
+  final isExtension =
+      extensionId != null && !builtInProviders.contains(extensionId);
+  final resolvedExtensionId = extensionId;
+
   _pushViaPreferredNavigator(
     context,
-    (context) => extensionId != null
+    (context) => isExtension && resolvedExtensionId != null
         ? ExtensionAlbumScreen(
-            extensionId: extensionId,
+            extensionId: resolvedExtensionId,
             albumId: albumId,
             albumName: albumName,
             coverUrl: coverUrl,

lib/utils/path_match_keys.dart

@@ -22,6 +22,9 @@ const _audioExtensions = <String>[
   '.aac',
 ];
 
+const _maxPathMatchKeyCacheSize = 6000;
+final Map<String, Set<String>> _pathMatchKeyCache = <String, Set<String>>{};
+
 /// Strips a trailing audio extension from [path] if present.
 /// Returns the path without extension, or `null` if no known audio extension
 /// was found.
@@ -41,6 +44,11 @@ Set<String> buildPathMatchKeys(String? filePath) {
 
   final cleaned = raw.startsWith('EXISTS:') ? raw.substring(7).trim() : raw;
   if (cleaned.isEmpty) return const {};
+  final cached = _pathMatchKeyCache.remove(cleaned);
+  if (cached != null) {
+    _pathMatchKeyCache[cleaned] = cached;
+    return cached;
+  }
 
   final keys = <String>{};
   final visited = <String>{};
@@ -118,7 +126,12 @@ Set<String> buildPathMatchKeys(String? filePath) {
   }
   keys.addAll(extensionStrippedKeys);
 
-  return keys;
+  final result = Set<String>.unmodifiable(keys);
+  _pathMatchKeyCache[cleaned] = result;
+  while (_pathMatchKeyCache.length > _maxPathMatchKeyCacheSize) {
+    _pathMatchKeyCache.remove(_pathMatchKeyCache.keys.first);
+  }
+  return result;
 }
 
 Iterable<String> _androidEquivalentPaths(String path) {

lib/widgets/animation_utils.dart

@@ -0,0 +1,879 @@
+import 'package:flutter/material.dart';
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 1. Staggered List Item – fade + slide-up entrance with index-based delay
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// Wraps a child in a staggered fade-in + slide-up animation.
+///
+/// [index] controls the stagger delay (each item delayed by [staggerDelay]).
+/// Set [animate] to false to skip the animation (e.g. when scrolling back).
+class StaggeredListItem extends StatelessWidget {
+  static const int _defaultMaxAnimatedItems = 10;
+
+  final int index;
+  final Widget child;
+  final Duration duration;
+  final Duration staggerDelay;
+  final bool animate;
+  final int maxAnimatedItems;
+
+  const StaggeredListItem({
+    super.key,
+    required this.index,
+    required this.child,
+    this.duration = const Duration(milliseconds: 250),
+    this.staggerDelay = const Duration(milliseconds: 40),
+    this.animate = true,
+    this.maxAnimatedItems = _defaultMaxAnimatedItems,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    if (!animate || index >= maxAnimatedItems) return child;
+    // Cap the delay so very long lists don't have absurd wait times.
+    final cappedIndex = index.clamp(0, maxAnimatedItems - 1);
+    final delay = staggerDelay * cappedIndex;
+    final totalDuration = duration + delay;
+
+    return TweenAnimationBuilder<double>(
+      key: ValueKey('stagger_$index'),
+      tween: Tween(begin: 0.0, end: 1.0),
+      duration: totalDuration,
+      curve: Curves.easeOutCubic,
+      builder: (context, value, child) {
+        // Compute the effective progress after the stagger delay.
+        final delayFraction = totalDuration.inMilliseconds > 0
+            ? delay.inMilliseconds / totalDuration.inMilliseconds
+            : 0.0;
+        final progress = value <= delayFraction
+            ? 0.0
+            : ((value - delayFraction) / (1.0 - delayFraction)).clamp(0.0, 1.0);
+        return Opacity(
+          opacity: progress,
+          child: Transform.translate(
+            offset: Offset(0, 12 * (1 - progress)),
+            child: child,
+          ),
+        );
+      },
+      child: child,
+    );
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 2. Animated State Switcher – crossfade between loading / content / empty / error
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// A convenience wrapper around [AnimatedSwitcher] that crossfades between
+/// different widget states (loading, content, empty, error).
+///
+/// Assign a unique [ValueKey] to each child so the switcher detects changes.
+class AnimatedStateSwitcher extends StatelessWidget {
+  final Widget child;
+  final Duration duration;
+
+  const AnimatedStateSwitcher({
+    super.key,
+    required this.child,
+    this.duration = const Duration(milliseconds: 250),
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedSwitcher(
+      duration: duration,
+      switchInCurve: Curves.easeOut,
+      switchOutCurve: Curves.easeIn,
+      transitionBuilder: (child, animation) {
+        return FadeTransition(opacity: animation, child: child);
+      },
+      child: child,
+    );
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 3. Shared Page Route – consistent slide-from-right transition
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// Creates a platform-aware material route.
+///
+/// This intentionally defers route transitions to Flutter's material route and
+/// theme so Android predictive back and platform-default animations remain
+/// intact.
+Route<T> slidePageRoute<T>({required Widget page}) {
+  return MaterialPageRoute<T>(builder: (context) => page);
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 4. Shimmer / Skeleton Loading Widget
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// A shimmer effect widget that can wrap skeleton placeholders.
+class ShimmerLoading extends StatefulWidget {
+  final Widget child;
+
+  const ShimmerLoading({super.key, required this.child});
+
+  @override
+  State<ShimmerLoading> createState() => _ShimmerLoadingState();
+}
+
+class _ShimmerLoadingState extends State<ShimmerLoading>
+    with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 1200),
+    )..repeat();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
+    final baseColor = isDark
+        ? Color.alphaBlend(
+            Colors.white.withValues(alpha: 0.08),
+            colorScheme.surface,
+          )
+        : Color.alphaBlend(
+            Colors.black.withValues(alpha: 0.10),
+            colorScheme.surface,
+          );
+    final highlightColor = isDark
+        ? Color.alphaBlend(
+            Colors.white.withValues(alpha: 0.14),
+            colorScheme.surface,
+          )
+        : Color.alphaBlend(
+            Colors.black.withValues(alpha: 0.01),
+            colorScheme.surface,
+          );
+
+    return AnimatedBuilder(
+      animation: _controller,
+      builder: (context, child) {
+        return ShaderMask(
+          shaderCallback: (bounds) {
+            return LinearGradient(
+              begin: Alignment.centerLeft,
+              end: Alignment.centerRight,
+              colors: [baseColor, highlightColor, baseColor],
+              stops: [
+                (_controller.value - 0.3).clamp(0.0, 1.0),
+                _controller.value,
+                (_controller.value + 0.3).clamp(0.0, 1.0),
+              ],
+              tileMode: TileMode.clamp,
+            ).createShader(bounds);
+          },
+          blendMode: BlendMode.srcATop,
+          child: child,
+        );
+      },
+      child: widget.child,
+    );
+  }
+}
+
+/// A skeleton placeholder box used inside [ShimmerLoading].
+class SkeletonBox extends StatelessWidget {
+  final double width;
+  final double height;
+  final double borderRadius;
+
+  const SkeletonBox({
+    super.key,
+    required this.width,
+    required this.height,
+    this.borderRadius = 8,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+    final color = isDark
+        ? Color.alphaBlend(
+            Colors.white.withValues(alpha: 0.08),
+            colorScheme.surface,
+          )
+        : Color.alphaBlend(
+            Colors.black.withValues(alpha: 0.06),
+            colorScheme.surface,
+          );
+    return Container(
+      width: width,
+      height: height,
+      decoration: BoxDecoration(
+        color: color,
+        borderRadius: BorderRadius.circular(borderRadius),
+      ),
+    );
+  }
+}
+
+/// Track list skeleton – mimics a list of track items while loading.
+class TrackListSkeleton extends StatelessWidget {
+  final int itemCount;
+  final bool showCoverHeader;
+
+  const TrackListSkeleton({
+    super.key,
+    this.itemCount = 8,
+    this.showCoverHeader = false,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final screenWidth = MediaQuery.of(context).size.width;
+    return ShimmerLoading(
+      child: SingleChildScrollView(
+        physics: const NeverScrollableScrollPhysics(),
+        child: Column(
+          children: [
+            if (showCoverHeader) ...[
+              SkeletonBox(
+                width: screenWidth,
+                height: screenWidth * 0.75,
+                borderRadius: 0,
+              ),
+              Padding(
+                padding: const EdgeInsets.only(top: 16),
+                child: SkeletonBox(width: 180, height: 20, borderRadius: 4),
+              ),
+              Padding(
+                padding: const EdgeInsets.only(top: 8, bottom: 20),
+                child: SkeletonBox(width: 110, height: 14, borderRadius: 4),
+              ),
+            ],
+            ...List.generate(itemCount, (index) {
+              return Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 8,
+                ),
+                child: Row(
+                  children: [
+                    const SkeletonBox(width: 48, height: 48),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          SkeletonBox(
+                            width: 140 + (index % 3) * 30,
+                            height: 14,
+                            borderRadius: 4,
+                          ),
+                          const SizedBox(height: 6),
+                          SkeletonBox(
+                            width: 90 + (index % 2) * 20,
+                            height: 12,
+                            borderRadius: 4,
+                          ),
+                        ],
+                      ),
+                    ),
+                    const SkeletonBox(width: 24, height: 24, borderRadius: 12),
+                  ],
+                ),
+              );
+            }),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+/// Grid skeleton – mimics a grid of album/playlist cards while loading.
+
+/// Album track list skeleton – mimics the album screen track list layout
+/// (track number + title + artist + trailing icon, no cover art thumbnail).
+class AlbumTrackListSkeleton extends StatelessWidget {
+  final int itemCount;
+  final bool showCoverHeader;
+
+  const AlbumTrackListSkeleton({
+    super.key,
+    this.itemCount = 10,
+    this.showCoverHeader = false,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final screenWidth = MediaQuery.of(context).size.width;
+    return ShimmerLoading(
+      child: SingleChildScrollView(
+        physics: const NeverScrollableScrollPhysics(),
+        child: Column(
+          children: [
+            if (showCoverHeader) ...[
+              SkeletonBox(
+                width: screenWidth,
+                height: screenWidth * 0.75,
+                borderRadius: 0,
+              ),
+              Padding(
+                padding: const EdgeInsets.only(top: 16),
+                child: SkeletonBox(width: 180, height: 20, borderRadius: 4),
+              ),
+              Padding(
+                padding: const EdgeInsets.only(top: 8, bottom: 20),
+                child: SkeletonBox(width: 110, height: 14, borderRadius: 4),
+              ),
+            ],
+            ...List.generate(itemCount, (index) {
+              return Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 6,
+                ),
+                child: Row(
+                  children: [
+                    SizedBox(
+                      width: 32,
+                      child: Center(
+                        child: SkeletonBox(
+                          width: 14,
+                          height: 14,
+                          borderRadius: 4,
+                        ),
+                      ),
+                    ),
+                    const SizedBox(width: 16),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          SkeletonBox(
+                            width: 120 + (index % 4) * 35,
+                            height: 14,
+                            borderRadius: 4,
+                          ),
+                          const SizedBox(height: 6),
+                          SkeletonBox(
+                            width: 70 + (index % 3) * 20,
+                            height: 12,
+                            borderRadius: 4,
+                          ),
+                        ],
+                      ),
+                    ),
+                    const SkeletonBox(width: 20, height: 20, borderRadius: 10),
+                  ],
+                ),
+              );
+            }),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class GridSkeleton extends StatelessWidget {
+  final int itemCount;
+  final int crossAxisCount;
+
+  const GridSkeleton({super.key, this.itemCount = 6, this.crossAxisCount = 2});
+
+  @override
+  Widget build(BuildContext context) {
+    return ShimmerLoading(
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 16),
+        child: GridView.builder(
+          shrinkWrap: true,
+          physics: const NeverScrollableScrollPhysics(),
+          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+            crossAxisCount: crossAxisCount,
+            mainAxisSpacing: 12,
+            crossAxisSpacing: 12,
+            childAspectRatio: 0.78,
+          ),
+          itemCount: itemCount,
+          itemBuilder: (context, index) {
+            return Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                const AspectRatio(
+                  aspectRatio: 1,
+                  child: SkeletonBox(width: double.infinity, height: 0),
+                ),
+                const SizedBox(height: 8),
+                SkeletonBox(
+                  width: 80 + (index % 3) * 20,
+                  height: 12,
+                  borderRadius: 4,
+                ),
+                const SizedBox(height: 4),
+                SkeletonBox(
+                  width: 50 + (index % 2) * 15,
+                  height: 10,
+                  borderRadius: 4,
+                ),
+              ],
+            );
+          },
+        ),
+      ),
+    );
+  }
+}
+
+/// Artist screen skeleton – mimics the artist page content below the header:
+/// an optional "Popular" section (rank + cover 48x48 + title + trailing) then
+/// a horizontal-scroll album section.
+class ArtistScreenSkeleton extends StatelessWidget {
+  final int popularCount;
+  final int albumCount;
+
+  const ArtistScreenSkeleton({
+    super.key,
+    this.popularCount = 5,
+    this.albumCount = 5,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final screenWidth = MediaQuery.of(context).size.width;
+    return ShimmerLoading(
+      child: SingleChildScrollView(
+        physics: const NeverScrollableScrollPhysics(),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            SkeletonBox(
+              width: screenWidth,
+              height: screenWidth * 0.75,
+              borderRadius: 0,
+            ),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 16, 16, 4),
+              child: SkeletonBox(width: 180, height: 24, borderRadius: 4),
+            ),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 4, 16, 16),
+              child: SkeletonBox(width: 120, height: 14, borderRadius: 4),
+            ),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 8, 16, 12),
+              child: SkeletonBox(width: 90, height: 20, borderRadius: 4),
+            ),
+            ...List.generate(popularCount, (index) {
+              return Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 8,
+                ),
+                child: Row(
+                  children: [
+                    SizedBox(
+                      width: 24,
+                      child: Center(
+                        child: SkeletonBox(
+                          width: 12,
+                          height: 14,
+                          borderRadius: 4,
+                        ),
+                      ),
+                    ),
+                    const SizedBox(width: 12),
+                    const SkeletonBox(width: 48, height: 48, borderRadius: 4),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          SkeletonBox(
+                            width: 110 + (index % 4) * 30,
+                            height: 14,
+                            borderRadius: 4,
+                          ),
+                          const SizedBox(height: 6),
+                          SkeletonBox(
+                            width: 70 + (index % 3) * 15,
+                            height: 11,
+                            borderRadius: 4,
+                          ),
+                        ],
+                      ),
+                    ),
+                    const SkeletonBox(width: 20, height: 20, borderRadius: 10),
+                  ],
+                ),
+              );
+            }),
+            const SizedBox(height: 16),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 8, 16, 12),
+              child: SkeletonBox(width: 80, height: 20, borderRadius: 4),
+            ),
+            SizedBox(
+              height: 190,
+              child: ListView.builder(
+                scrollDirection: Axis.horizontal,
+                physics: const NeverScrollableScrollPhysics(),
+                padding: const EdgeInsets.symmetric(horizontal: 12),
+                itemCount: albumCount,
+                itemBuilder: (context, index) {
+                  return Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 6),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        const SkeletonBox(width: 140, height: 140),
+                        const SizedBox(height: 8),
+                        SkeletonBox(
+                          width: 80 + (index % 3) * 20,
+                          height: 12,
+                          borderRadius: 4,
+                        ),
+                        const SizedBox(height: 4),
+                        SkeletonBox(
+                          width: 50 + (index % 2) * 15,
+                          height: 10,
+                          borderRadius: 4,
+                        ),
+                      ],
+                    ),
+                  );
+                },
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+/// Home search skeleton – mimics filter chips + sectioned results
+/// (Artists section with rounded card items, Albums section, etc.)
+class HomeSearchSkeleton extends StatelessWidget {
+  const HomeSearchSkeleton({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return ShimmerLoading(
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            child: Row(
+              children: [
+                SkeletonBox(width: 48, height: 32, borderRadius: 16),
+                const SizedBox(width: 8),
+                SkeletonBox(width: 64, height: 32, borderRadius: 16),
+                const SizedBox(width: 8),
+                SkeletonBox(width: 72, height: 32, borderRadius: 16),
+                const SizedBox(width: 8),
+                SkeletonBox(width: 60, height: 32, borderRadius: 16),
+                const SizedBox(width: 8),
+                SkeletonBox(width: 70, height: 32, borderRadius: 16),
+              ],
+            ),
+          ),
+          const SizedBox(height: 8),
+          _sectionSkeleton(context, 70, 2),
+          const SizedBox(height: 16),
+          _sectionSkeleton(context, 65, 4),
+        ],
+      ),
+    );
+  }
+
+  static Widget _sectionSkeleton(
+    BuildContext context,
+    double headerWidth,
+    int itemCount,
+  ) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+          child: Row(
+            children: [
+              SkeletonBox(width: headerWidth, height: 18, borderRadius: 4),
+              const Spacer(),
+              const SkeletonBox(width: 50, height: 16, borderRadius: 4),
+            ],
+          ),
+        ),
+        Container(
+          margin: const EdgeInsets.symmetric(horizontal: 16),
+          decoration: BoxDecoration(
+            color: Theme.of(
+              context,
+            ).colorScheme.surfaceContainerHighest.withValues(alpha: 0.3),
+            borderRadius: BorderRadius.circular(20),
+          ),
+          child: Column(
+            children: List.generate(itemCount, (index) {
+              return Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 10,
+                ),
+                child: Row(
+                  children: [
+                    const SkeletonBox(width: 48, height: 48, borderRadius: 24),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          SkeletonBox(
+                            width: 100 + (index % 3) * 40,
+                            height: 14,
+                            borderRadius: 4,
+                          ),
+                          const SizedBox(height: 6),
+                          SkeletonBox(
+                            width: 60 + (index % 2) * 25,
+                            height: 12,
+                            borderRadius: 4,
+                          ),
+                        ],
+                      ),
+                    ),
+                    const SkeletonBox(width: 20, height: 20, borderRadius: 10),
+                  ],
+                ),
+              );
+            }),
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 5. Animated Selection Checkbox – scales in when entering selection mode
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// An animated selection indicator that scales in/out and crossfades the
+/// checked/unchecked state.
+class AnimatedSelectionCheckbox extends StatelessWidget {
+  final bool visible;
+  final bool selected;
+  final ColorScheme colorScheme;
+  final double size;
+
+  /// Background color when not selected. Defaults to `Colors.transparent`.
+  final Color? unselectedColor;
+
+  const AnimatedSelectionCheckbox({
+    super.key,
+    required this.visible,
+    required this.selected,
+    required this.colorScheme,
+    this.size = 20,
+    this.unselectedColor,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedScale(
+      scale: visible ? 1.0 : 0.0,
+      duration: const Duration(milliseconds: 200),
+      curve: Curves.easeOutBack,
+      child: AnimatedContainer(
+        duration: const Duration(milliseconds: 200),
+        width: size,
+        height: size,
+        decoration: BoxDecoration(
+          color: selected
+              ? colorScheme.primary
+              : unselectedColor ?? Colors.transparent,
+          shape: BoxShape.circle,
+          border: Border.all(
+            color: selected ? colorScheme.primary : colorScheme.outline,
+            width: 2,
+          ),
+        ),
+        child: AnimatedSwitcher(
+          duration: const Duration(milliseconds: 150),
+          child: selected
+              ? Icon(
+                  Icons.check,
+                  key: const ValueKey('checked'),
+                  size: size - 6,
+                  color: colorScheme.onPrimary,
+                )
+              : SizedBox(
+                  key: const ValueKey('unchecked'),
+                  width: size - 6,
+                  height: size - 6,
+                ),
+        ),
+      ),
+    );
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 6. Download Success Animation – green flash + checkmark
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// A widget that briefly flashes a success color behind its child and shows
+/// an animated checkmark when [showSuccess] transitions to true.
+class DownloadSuccessOverlay extends StatefulWidget {
+  final bool showSuccess;
+  final Widget child;
+
+  const DownloadSuccessOverlay({
+    super.key,
+    required this.showSuccess,
+    required this.child,
+  });
+
+  @override
+  State<DownloadSuccessOverlay> createState() => _DownloadSuccessOverlayState();
+}
+
+class _DownloadSuccessOverlayState extends State<DownloadSuccessOverlay>
+    with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+  late Animation<double> _flashAnimation;
+  late bool _wasSuccess;
+
+  @override
+  void initState() {
+    super.initState();
+    // Initialise from the current widget value so items that are already
+    // completed when first built do not play the flash animation.
+    _wasSuccess = widget.showSuccess;
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 600),
+    );
+    _flashAnimation = TweenSequence<double>([
+      TweenSequenceItem(tween: Tween(begin: 0.0, end: 0.15), weight: 30),
+      TweenSequenceItem(tween: Tween(begin: 0.15, end: 0.0), weight: 70),
+    ]).animate(_controller);
+  }
+
+  @override
+  void didUpdateWidget(DownloadSuccessOverlay oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.showSuccess && !_wasSuccess) {
+      _controller.forward(from: 0);
+    }
+    _wasSuccess = widget.showSuccess;
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _controller,
+      builder: (context, child) {
+        return Container(
+          decoration: BoxDecoration(
+            color: Colors.green.withValues(alpha: _flashAnimation.value),
+            borderRadius: BorderRadius.circular(12),
+          ),
+          child: child,
+        );
+      },
+      child: widget.child,
+    );
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 7. Badge Bump Animation – scales the badge when count changes
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// Wraps a [Badge] child and plays a brief scale-bump whenever [count] changes.
+class AnimatedBadge extends StatefulWidget {
+  final int count;
+  final Widget child;
+
+  const AnimatedBadge({super.key, required this.count, required this.child});
+
+  @override
+  State<AnimatedBadge> createState() => _AnimatedBadgeState();
+}
+
+class _AnimatedBadgeState extends State<AnimatedBadge>
+    with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+  late Animation<double> _scaleAnimation;
+  int _previousCount = 0;
+
+  @override
+  void initState() {
+    super.initState();
+    _previousCount = widget.count;
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 300),
+    );
+    _scaleAnimation = TweenSequence<double>([
+      TweenSequenceItem(tween: Tween(begin: 1.0, end: 1.3), weight: 40),
+      TweenSequenceItem(tween: Tween(begin: 1.3, end: 1.0), weight: 60),
+    ]).animate(_controller);
+  }
+
+  @override
+  void didUpdateWidget(AnimatedBadge oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.count != _previousCount && widget.count > _previousCount) {
+      _controller.forward(from: 0);
+    }
+    _previousCount = widget.count;
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ScaleTransition(scale: _scaleAnimation, child: widget.child);
+  }
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// 8. Animated Removal Item – fade + slide out when removed from a list
+// ─────────────────────────────────────────────────────────────────────────────
+
+/// Build a removal animation for [AnimatedList] items.
+/// Use as the `builder` callback in [AnimatedListState.removeItem].
+Widget buildRemovalAnimation(Widget child, Animation<double> animation) {
+  return SizeTransition(
+    sizeFactor: CurvedAnimation(parent: animation, curve: Curves.easeInOut),
+    child: FadeTransition(
+      opacity: CurvedAnimation(parent: animation, curve: Curves.easeIn),
+      child: child,
+    ),
+  );
+}