Add CSV import and optimize Appearance settings

2026-07-18 01:57:21 +02:00 · 2026-01-11 05:56:30 +07:00
parent 9f47f2ce85
commit b73a3f8912
8 changed files with 1220 additions and 549 deletions
@@ -0,0 +1,216 @@
+import 'dart:io';
+import 'package:file_picker/file_picker.dart';
+import 'package:spotiflac_android/models/track.dart';
+import 'package:spotiflac_android/services/platform_bridge.dart';
+import 'package:spotiflac_android/utils/logger.dart';
+
+class CsvImportService {
+  static final _log = AppLogger('CsvImportService');
+
+  /// Pick and parse CSV file, then enrich metadata from Deezer
+  /// [onProgress] callback receives (current, total) for progress updates
+  static Future<List<Track>> pickAndParseCsv({
+    void Function(int current, int total)? onProgress,
+  }) async {
+    try {
+      final FilePickerResult? result = await FilePicker.platform.pickFiles(
+        type: FileType.custom,
+        allowedExtensions: ['csv'],
+      );
+
+      if (result != null && result.files.single.path != null) {
+        final file = File(result.files.single.path!);
+        final content = await file.readAsString();
+        final tracks = _parseCsv(content);
+        
+        // Enrich tracks with metadata from Deezer (cover URL, duration, etc.)
+        if (tracks.isNotEmpty) {
+          return await _enrichTracksMetadata(tracks, onProgress: onProgress);
+        }
+        return tracks;
+      }
+    } catch (e) {
+      _log.e('Error picking/parsing CSV: $e');
+    }
+    return [];
+  }
+
+  /// Enrich tracks with metadata from Deezer using ISRC
+  /// This fetches cover URL, duration, and other metadata that CSV doesn't have
+  static Future<List<Track>> _enrichTracksMetadata(
+    List<Track> tracks, {
+    void Function(int current, int total)? onProgress,
+  }) async {
+    _log.i('Enriching metadata for ${tracks.length} tracks from Deezer...');
+    final enrichedTracks = <Track>[];
+    
+    for (int i = 0; i < tracks.length; i++) {
+      final track = tracks[i];
+      onProgress?.call(i + 1, tracks.length);
+      
+      // Only enrich if we have ISRC and missing cover/duration
+      if (track.isrc != null && 
+          track.isrc!.isNotEmpty && 
+          (track.coverUrl == null || track.duration == 0)) {
+        try {
+          // searchDeezerByISRC returns TrackMetadata directly (not wrapped in "track" key)
+          final trackData = await PlatformBridge.searchDeezerByISRC(track.isrc!);
+          
+          // Extract enriched data from TrackMetadata
+          final coverUrl = trackData['images'] as String?;
+          final durationMs = trackData['duration_ms'] as int? ?? 0;
+          final deezerIdRaw = trackData['spotify_id'] as String?; // Format: "deezer:123456"
+          
+          enrichedTracks.add(Track(
+            id: deezerIdRaw ?? track.id, // Use Deezer ID if available
+            name: trackData['name'] as String? ?? track.name,
+            artistName: trackData['artists'] as String? ?? track.artistName,
+            albumName: trackData['album_name'] as String? ?? track.albumName,
+            albumArtist: trackData['album_artist'] as String?,
+            coverUrl: coverUrl ?? track.coverUrl,
+            isrc: trackData['isrc'] as String? ?? track.isrc,
+            duration: durationMs > 0 ? durationMs ~/ 1000 : track.duration,
+            trackNumber: trackData['track_number'] as int? ?? track.trackNumber,
+            discNumber: trackData['disc_number'] as int? ?? track.discNumber,
+            releaseDate: trackData['release_date'] as String? ?? track.releaseDate,
+          ));
+          
+          _log.d('Enriched: ${track.name} - cover: ${coverUrl != null}, duration: ${durationMs ~/ 1000}s');
+          
+          // Small delay to avoid rate limiting (50ms between requests)
+          if (i < tracks.length - 1) {
+            await Future.delayed(const Duration(milliseconds: 50));
+          }
+          continue;
+        } catch (e) {
+          _log.w('Failed to enrich ${track.name}: $e');
+        }
+      }
+      
+      // Keep original track if enrichment failed or not needed
+      enrichedTracks.add(track);
+    }
+    
+    _log.i('Enrichment complete: ${enrichedTracks.length} tracks');
+    return enrichedTracks;
+  }
+
+  static List<Track> _parseCsv(String content) {
+    final List<Track> tracks = [];
+    final lines = content.split(RegExp(r'\r\n|\r|\n')); // Handle various newline formats
+    if (lines.isEmpty) return tracks;
+
+    // Detect headers line (assume first non-empty line)
+    int startIdx = 0;
+    while (startIdx < lines.length && lines[startIdx].trim().isEmpty) {
+      startIdx++;
+    }
+    if (startIdx >= lines.length) return tracks;
+
+    final headers = _parseLine(lines[startIdx]);
+    final colMap = <String, int>{};
+    for (int i = 0; i < headers.length; i++) {
+        // Normalize header: lowercase, trim, remove quotes
+        String h = _cleanValue(headers[i]).toLowerCase();
+        colMap[h] = i;
+    }
+
+    _log.d('CSV Headers: ${colMap.keys.toList()}');
+
+    // Parse rows
+    for (int i = startIdx + 1; i < lines.length; i++) {
+      final line = lines[i].trim();
+      if (line.isEmpty) continue;
+
+      final values = _parseLine(line);
+      
+      // Helper to get value securely
+      String? getVal(List<String> keys) {
+        return _getValue(values, colMap, keys);
+      }
+
+      String? trackName = getVal(['track name', 'track', 'name', 'title']);
+      String? artistName = getVal(['artist name', 'artist']);
+      String? albumName = getVal(['album name', 'album']);
+      String? isrc = getVal(['isrc']); // Often formatted with leading/trailing quotes
+      String? spotifyId = getVal(['spotify - id', 'spotify id', 'id', 'uri']); // Uri might need parsing
+
+      // If 'spotify uri' contains the id: 'spotify:track:ID'
+      if (spotifyId != null && spotifyId.startsWith('spotify:track:')) {
+        spotifyId = spotifyId.replaceAll('spotify:track:', '');
+      }
+
+      // Basic validation: Need at least name and artist, OR a spotify ID
+      if ((trackName != null && trackName.isNotEmpty && artistName != null) || (spotifyId != null && spotifyId.isNotEmpty)) {
+          tracks.add(Track(
+              id: spotifyId ?? 'csv_${DateTime.now().millisecondsSinceEpoch}_$i', 
+              name: trackName ?? 'Unknown Track',
+              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
+          ));
+      }
+    }
+    
+    _log.i('Parsed ${tracks.length} tracks from CSV');
+    return tracks;
+  }
+  
+  static String? _getValue(List<String> values, Map<String, int> colMap, List<String> possibleKeys) {
+      for (final key in possibleKeys) {
+          if (colMap.containsKey(key)) {
+              final index = colMap[key]!;
+              if (index < values.length) {
+                   return _cleanValue(values[index]);
+              }
+          }
+      }
+      return null;
+  }
+
+  static String _cleanValue(String val) {
+    val = val.trim();
+    if (val.startsWith('"') && val.endsWith('"') && val.length >= 2) {
+      val = val.substring(1, val.length - 1);
+    }
+    // Handle double quotes escape in CSV ("" -> ")
+    val = val.replaceAll('""', '"');
+    return val;
+  }
+
+  // Robust CSV Line Parser
+  static List<String> _parseLine(String line) {
+     final List<String> result = [];
+     bool inQuote = false;
+     StringBuffer buffer = StringBuffer();
+     
+     for (int i=0; i<line.length; i++) {
+         String char = line[i];
+         if (char == '"') {
+             // Look ahead to check for escaped quote
+             if (i + 1 < line.length && line[i+1] == '"') {
+                buffer.write('"'); // Keep format for now, _cleanValue handles unescaping logic differently... 
+                // Wait, standard CSV: "Thumb ""Up""" -> Thumb "Up"
+                // My _cleanValue handles it, so I should just preserve raw content here mostly, 
+                // BUT I need to know if " toggles inQuote.
+                // Escaped "" does NOT toggle inQuote mode effectively (it counts as literal char inside quote).
+                buffer.write('"'); // Write 1st quote
+                i++; // Skip next quote char loop
+                buffer.write('"'); // Write 2nd quote
+             } else {
+                inQuote = !inQuote;
+                buffer.write(char);
+             }
+         } else if (char == ',' && !inQuote) {
+             result.add(buffer.toString());
+             buffer.clear();
+         } else {
+             buffer.write(char);
+         }
+     }
+     result.add(buffer.toString());
+     return result;
+  }
+}