CalvinBackup/SpotiFLAC-Mobile
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perf(cue): parse SAF previews without copying audio

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zarzet committed 2026-09-17 17:38:49 +07:00
1 parent 1387a28d66
commit 91ef538c87
8 files changed
+282 -65
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android/app/src/main/kotlin/com/zarz/spotiflac/CoreBackend.kt
+1
View File
@@ -204,6 +204,7 @@ internal interface CoreBackend {
fun getLibraryScanProgress(): String
fun cancelLibraryScan()
fun parseCueSheet(path: String, audioDirectory: String): String
fun parseCueSheetWithResolvedAudio(path: String, audioPath: String): String
fun scanCueForLibrary(path: String, audioDirectory: String, virtualPrefix: String, modTime: Long, cacheKey: String): String
fun editFileMetadata(path: String, metadataJson: String): String
fun reEnrichFile(requestJson: String): String
android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt
+19 -44
View File
@@ -1953,61 +1953,36 @@ class MainActivity: FlutterFragmentActivity() {
val uri = Uri.parse(cuePath)
val tempCuePath = copyUriToTemp(uri, ".cue")
?: return@withContext """{"error":"Failed to copy CUE file to temp"}"""
var tempAudioPath: String? = null
try {
val audioFileName = extractCueAudioFileName(tempCuePath)
var audioDoc: DocumentFile? = null
val parentDir = safParentDir(uri)
if (parentDir != null && !audioFileName.isNullOrBlank()) {
audioDoc = try { parentDir.findFile(audioFileName) } catch (_: Exception) { null }
}
if (audioDoc == null && parentDir != null) {
val audioDoc = if (parentDir != null) {
val cueName = try {
DocumentFile.fromSingleUri(this@MainActivity, uri)?.name ?: ""
} catch (_: Exception) { "" }
val cueBaseName = cueName.substringBeforeLast('.')
if (cueBaseName.isNotBlank()) {
val commonExts = listOf(".flac", ".wav", ".ape", ".mp3", ".ogg", ".wv", ".m4a", ".mp4", ".aac")
for (ext in commonExts) {
audioDoc = try { parentDir.findFile(cueBaseName + ext) } catch (_: Exception) { null }
if (audioDoc != null) break
audioDoc = try { parentDir.findFile(cueBaseName + ext.uppercase(Locale.ROOT)) } catch (_: Exception) { null }
if (audioDoc != null) break
}
}
}
val tempDir = File(tempCuePath).parent ?: cacheDir.absolutePath
if (audioDoc != null) {
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
val copiedAudio = copyUriToTemp(audioDoc.uri, fallbackExt)
if (copiedAudio != null) {
val renamedAudio = File(tempDir, audioName)
val copiedFile = File(copiedAudio)
if (renamedAudio.absolutePath != copiedFile.absolutePath) {
copiedFile.renameTo(renamedAudio)
}
tempAudioPath = renamedAudio.absolutePath
}
}
val resultJson = coreBackend.parseCueSheet(tempCuePath, tempDir)
if (audioDoc != null) {
val resultObj = JSONObject(resultJson)
resultObj.put("audio_path", audioDoc.uri.toString())
resultObj.put("cue_path", cuePath)
resultObj.toString()
findSafCueAudioSibling(this@MainActivity, parentDir, cueName, audioFileName)
} else {
resultJson
null
}
if (audioDoc == null || !audioDoc.isFile) {
return@withContext JSONObject()
.put("error", "Audio file not found for CUE sheet")
.toString()
}
// Preview parses the CUE text only; the selected audio
// stays in SAF instead of copying a whole album to cache.
val resultJson = coreBackend.parseCueSheetWithResolvedAudio(
tempCuePath,
audioDoc.uri.toString(),
)
JSONObject(resultJson)
.put("cue_path", cuePath)
.toString()
} finally {
try { File(tempCuePath).delete() } catch (_: Exception) {}
try { tempAudioPath?.let { File(it).delete() } } catch (_: Exception) {}
}
} else {
coreBackend.parseCueSheet(cuePath, audioDir)
android/app/src/main/kotlin/com/zarz/spotiflac/SafCueLookup.kt
+31
View File
@@ -0,0 +1,31 @@
package com.zarz.spotiflac
import android.content.Context
import androidx.documentfile.provider.DocumentFile
import java.util.Locale
internal fun findSafCueAudioSibling(
context: Context,
parent: DocumentFile,
cueName: String,
audioFileName: String?,
): DocumentFile? {
val candidates = linkedSetOf<String>()
if (!audioFileName.isNullOrBlank()) candidates.add(audioFileName)
val baseName = cueName.substringBeforeLast('.')
if (baseName.isNotBlank()) {
for (extension in listOf(".flac", ".wav", ".ape", ".mp3", ".ogg", ".wv", ".m4a", ".mp4", ".aac")) {
candidates.add(baseName + extension)
candidates.add(baseName + extension.uppercase(Locale.ROOT))
}
}
val matches = try {
findSafChildren(context, parent, candidates)
} catch (_: Exception) {
// Preserve the old per-candidate recovery for unusual providers.
return candidates.firstNotNullOfOrNull { name ->
try { findSafChild(context, parent, name) } catch (_: Exception) { null }
}
}
return candidates.firstNotNullOfOrNull(matches::get)
}