feat: add home feed provider setting, fix Qobuz cover URL propagation

- Add homeFeedProvider field to AppSettings with picker UI in extensions page
- Update explore_provider to respect user's home feed provider preference
- Add normalizeCoverReference() and normalizeRemoteHttpUrl() to filter
  invalid cover URLs (no scheme, no host, protocol-relative)
- Apply cover URL normalization across all screens and providers to
  prevent 'no host specified in URI' errors from Qobuz
- Propagate CoverURL from QobuzDownloadResult through Go backend so
  cover art is available even when request metadata is incomplete

go_backend/exports.go

@@ -128,6 +128,7 @@ type DownloadResult struct {
 	TrackNumber   int
 	DiscNumber    int
 	ISRC          string
+	CoverURL      string
 	Genre         string
 	Label         string
 	Copyright     string
@@ -214,6 +215,11 @@ func buildDownloadSuccessResponse(
 		copyright = req.Copyright
 	}
 
+	coverURL := strings.TrimSpace(result.CoverURL)
+	if coverURL == "" {
+		coverURL = strings.TrimSpace(req.CoverURL)
+	}
+
 	return DownloadResponse{
 		Success:          true,
 		Message:          message,
@@ -230,7 +236,7 @@ func buildDownloadSuccessResponse(
 		TrackNumber:      trackNumber,
 		DiscNumber:       discNumber,
 		ISRC:             isrc,
-		CoverURL:         req.CoverURL,
+		CoverURL:         coverURL,
 		Genre:            genre,
 		Label:            label,
 		Copyright:        copyright,
@@ -378,6 +384,7 @@ func DownloadTrack(requestJSON string) (string, error) {
 				TrackNumber: qobuzResult.TrackNumber,
 				DiscNumber:  qobuzResult.DiscNumber,
 				ISRC:        qobuzResult.ISRC,
+				CoverURL:    qobuzResult.CoverURL,
 				LyricsLRC:   qobuzResult.LyricsLRC,
 			}
 		}
@@ -586,6 +593,7 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 					TrackNumber: qobuzResult.TrackNumber,
 					DiscNumber:  qobuzResult.DiscNumber,
 					ISRC:        qobuzResult.ISRC,
+					CoverURL:    qobuzResult.CoverURL,
 					LyricsLRC:   qobuzResult.LyricsLRC,
 				}
 			} else if !errors.Is(qobuzErr, ErrDownloadCancelled) {

go_backend/exports_test.go

@@ -84,3 +84,32 @@ func TestPreferredReleaseMetadataPrefersRequestValues(t *testing.T) {
 		t.Fatalf("disc number = %d", discNumber)
 	}
 }
+
+func TestBuildDownloadSuccessResponsePrefersProviderCoverURL(t *testing.T) {
+	req := DownloadRequest{
+		TrackName:   "Track",
+		ArtistName:  "Artist",
+		AlbumName:   "Album",
+		AlbumArtist: "Artist",
+	}
+
+	result := DownloadResult{
+		Title:    "Track",
+		Artist:   "Artist",
+		Album:    "Album",
+		CoverURL: "https://cdn.qobuz.test/cover.jpg",
+	}
+
+	resp := buildDownloadSuccessResponse(
+		req,
+		result,
+		"qobuz",
+		"ok",
+		"/tmp/test.flac",
+		false,
+	)
+
+	if resp.CoverURL != result.CoverURL {
+		t.Fatalf("cover url = %q, want %q", resp.CoverURL, result.CoverURL)
+	}
+}

go_backend/extension_providers.go

@@ -1480,6 +1480,7 @@ func tryBuiltInProvider(providerID string, req DownloadRequest) (*DownloadRespon
 				TrackNumber: qobuzResult.TrackNumber,
 				DiscNumber:  qobuzResult.DiscNumber,
 				ISRC:        qobuzResult.ISRC,
+				CoverURL:    qobuzResult.CoverURL,
 			}
 		}
 		err = qobuzErr
@@ -1522,6 +1523,7 @@ func tryBuiltInProvider(providerID string, req DownloadRequest) (*DownloadRespon
 		TrackNumber:      result.TrackNumber,
 		DiscNumber:       result.DiscNumber,
 		ISRC:             result.ISRC,
+		CoverURL:         result.CoverURL,
 		Genre:            req.Genre,
 		Label:            req.Label,
 		Copyright:        req.Copyright,

go_backend/qobuz.go

@@ -2067,6 +2067,7 @@ type QobuzDownloadResult struct {
 	TrackNumber int
 	DiscNumber  int
 	ISRC        string
+	CoverURL    string
 	LyricsLRC   string
 }
 
@@ -2260,7 +2261,10 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 	parallelDone := make(chan struct{})
 	go func() {
 		defer close(parallelDone)
-		coverURL := req.CoverURL
+		coverURL := strings.TrimSpace(req.CoverURL)
+		if coverURL == "" {
+			coverURL = strings.TrimSpace(qobuzTrackAlbumImage(track))
+		}
 		embedLyrics := req.EmbedLyrics
 		if !req.EmbedMetadata {
 			coverURL = ""
@@ -2393,6 +2397,7 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 		TrackNumber: resultTrackNumber,
 		DiscNumber:  resultDiscNumber,
 		ISRC:        track.ISRC,
+		CoverURL:    strings.TrimSpace(qobuzTrackAlbumImage(track)),
 		LyricsLRC:   lyricsLRC,
 	}, nil
 }

lib/models/settings.dart

@@ -34,6 +34,7 @@ class AppSettings {
   final bool enableLogging;
   final bool useExtensionProviders;
   final String? searchProvider;
+  final String? homeFeedProvider;
   final bool separateSingles;
   final String albumFolderStructure;
   final bool showExtensionStore;
@@ -113,6 +114,7 @@ class AppSettings {
     this.enableLogging = false,
     this.useExtensionProviders = true,
     this.searchProvider,
+    this.homeFeedProvider,
     this.separateSingles = false,
     this.albumFolderStructure = 'artist_album',
     this.showExtensionStore = true,
@@ -179,6 +181,8 @@ class AppSettings {
     bool? useExtensionProviders,
     String? searchProvider,
     bool clearSearchProvider = false,
+    String? homeFeedProvider,
+    bool clearHomeFeedProvider = false,
     bool? separateSingles,
     String? albumFolderStructure,
     bool? showExtensionStore,
@@ -244,6 +248,9 @@ class AppSettings {
       searchProvider: clearSearchProvider
           ? null
           : (searchProvider ?? this.searchProvider),
+      homeFeedProvider: clearHomeFeedProvider
+          ? null
+          : (homeFeedProvider ?? this.homeFeedProvider),
       separateSingles: separateSingles ?? this.separateSingles,
       albumFolderStructure: albumFolderStructure ?? this.albumFolderStructure,
       showExtensionStore: showExtensionStore ?? this.showExtensionStore,

lib/models/settings.g.dart

@@ -39,6 +39,7 @@ AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
   enableLogging: json['enableLogging'] as bool? ?? false,
   useExtensionProviders: json['useExtensionProviders'] as bool? ?? true,
   searchProvider: json['searchProvider'] as String?,
+  homeFeedProvider: json['homeFeedProvider'] as String?,
   separateSingles: json['separateSingles'] as bool? ?? false,
   albumFolderStructure:
       json['albumFolderStructure'] as String? ?? 'artist_album',
@@ -117,6 +118,7 @@ Map<String, dynamic> _$AppSettingsToJson(
   'enableLogging': instance.enableLogging,
   'useExtensionProviders': instance.useExtensionProviders,
   'searchProvider': instance.searchProvider,
+  'homeFeedProvider': instance.homeFeedProvider,
   'separateSingles': instance.separateSingles,
   'albumFolderStructure': instance.albumFolderStructure,
   'showExtensionStore': instance.showExtensionStore,

lib/providers/download_queue_provider.dart

@@ -122,7 +122,7 @@ class DownloadHistoryItem {
         artistName: json['artistName'] as String,
         albumName: json['albumName'] as String,
         albumArtist: normalizeOptionalString(json['albumArtist'] as String?),
-        coverUrl: json['coverUrl'] as String?,
+        coverUrl: normalizeCoverReference(json['coverUrl']?.toString()),
         filePath: json['filePath'] as String,
         storageMode: json['storageMode'] as String?,
         downloadTreeUri: json['downloadTreeUri'] as String?,
@@ -176,7 +176,7 @@ class DownloadHistoryItem {
       artistName: artistName ?? this.artistName,
       albumName: albumName ?? this.albumName,
       albumArtist: albumArtist ?? this.albumArtist,
-      coverUrl: coverUrl ?? this.coverUrl,
+      coverUrl: normalizeCoverReference(coverUrl ?? this.coverUrl),
       filePath: filePath ?? this.filePath,
       storageMode: storageMode ?? this.storageMode,
       downloadTreeUri: downloadTreeUri ?? this.downloadTreeUri,
@@ -2534,8 +2534,8 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     final backendIsrc = normalizeOptionalString(
       backendResult['isrc'] as String?,
     );
-    final backendCoverUrl = normalizeOptionalString(
+    final backendCoverUrl = normalizeCoverReference(
-      backendResult['cover_url'] as String?,
+      backendResult['cover_url']?.toString(),
     );
     final backendAlbumArtist = normalizeOptionalString(
       backendResult['album_artist'] as String?,
@@ -2591,7 +2591,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     }
 
     String? coverPath;
-    var coverUrl = track.coverUrl;
+    var coverUrl = normalizeRemoteHttpUrl(track.coverUrl);
     if (coverUrl != null && coverUrl.isNotEmpty) {
       try {
         if (settings.maxQualityCover) {
@@ -2777,7 +2777,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     }
 
     String? coverPath;
-    var coverUrl = track.coverUrl;
+    var coverUrl = normalizeRemoteHttpUrl(track.coverUrl);
     if (coverUrl != null && coverUrl.isNotEmpty) {
       try {
         if (settings.maxQualityCover) {
@@ -2945,7 +2945,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
     }
 
     String? coverPath;
-    var coverUrl = track.coverUrl;
+    var coverUrl = normalizeRemoteHttpUrl(track.coverUrl);
     if (coverUrl != null && coverUrl.isNotEmpty) {
       try {
         if (settings.maxQualityCover) {
@@ -3751,7 +3751,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
                 albumArtist: trackToDownload.albumArtist,
                 artistId: trackToDownload.artistId,
                 albumId: trackToDownload.albumId,
-                coverUrl: trackToDownload.coverUrl,
+                coverUrl: normalizeCoverReference(trackToDownload.coverUrl),
                 duration: trackToDownload.duration,
                 isrc: (deezerIsrc != null && _isValidISRC(deezerIsrc))
                     ? deezerIsrc
@@ -4041,6 +4041,14 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
             item.service.toLowerCase();
         final decryptionKey =
             (result['decryption_key'] as String?)?.trim() ?? '';
+        trackToDownload = _buildTrackForMetadataEmbedding(
+          trackToDownload,
+          result,
+          resolvedAlbumArtist,
+        );
+        _log.d(
+          'Track coverUrl after download result: ${trackToDownload.coverUrl}',
+        );
 
         if (!wasExisting && decryptionKey.isNotEmpty && filePath != null) {
           _log.i('Encrypted stream detected, decrypting via FFmpeg...');
@@ -4959,7 +4967,7 @@ class DownloadQueueNotifier extends Notifier<DownloadQueueState> {
                       ? backendAlbum
                       : trackToDownload.albumName,
                   albumArtist: historyAlbumArtist,
-                  coverUrl: trackToDownload.coverUrl,
+                  coverUrl: normalizeCoverReference(trackToDownload.coverUrl),
                   filePath: filePath,
                   storageMode: effectiveSafMode ? 'saf' : 'app',
                   downloadTreeUri: effectiveSafMode

lib/providers/explore_provider.dart

@@ -4,6 +4,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/logger.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
+import 'package:spotiflac_android/providers/settings_provider.dart';
 
 final _log = AppLogger('ExploreProvider');
 
@@ -202,9 +203,7 @@ class ExploreNotifier extends Notifier<ExploreState> {
   Future<void> _saveToCache(List<ExploreSection> sections) async {
     try {
       final prefs = await SharedPreferences.getInstance();
-      final data = {
+      final data = {'sections': sections.map((s) => s.toJson()).toList()};
-        'sections': sections.map((s) => s.toJson()).toList(),
-      };
       await prefs.setString(_cacheKey, jsonEncode(data));
       await prefs.setInt(_cacheTsKey, DateTime.now().millisecondsSinceEpoch);
       _log.d('Saved ${sections.length} explore sections to cache');
@@ -216,16 +215,16 @@ class ExploreNotifier extends Notifier<ExploreState> {
   /// Fetch home feed from spotify-web extension
   Future<void> fetchHomeFeed({bool forceRefresh = false}) async {
     _log.i('fetchHomeFeed called, forceRefresh=$forceRefresh');
-    
+
     // If we have cached content and it's fresh enough, skip network fetch
-    if (!forceRefresh && 
+    if (!forceRefresh &&
-        state.hasContent && 
+        state.hasContent &&
         state.lastFetched != null &&
         DateTime.now().difference(state.lastFetched!).inMinutes < 5) {
       _log.d('Using cached home feed (fresh enough)');
       return;
     }
-    
+
     if (state.isLoading) {
       _log.d('Home feed fetch already in progress');
       return;
@@ -237,21 +236,33 @@ class ExploreNotifier extends Notifier<ExploreState> {
 
     try {
       final extState = ref.read(extensionProvider);
-      _log.d('Extensions count: ${extState.extensions.length}');
+      final settings = ref.read(settingsProvider);
-      
+      final preferredId = settings.homeFeedProvider;
+      _log.d(
+        'Extensions count: ${extState.extensions.length}, preferred home feed: $preferredId',
+      );
+
       Extension? targetExt;
       for (final extension in extState.extensions) {
         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 (extension.id == 'spotify-web') {
+          if (preferredId == null && extension.id == 'spotify-web') {
             break;
           }
         }
       }
-      
+
       if (targetExt == null) {
         _log.w('No extension with homeFeed capability found');
         state = state.copyWith(
@@ -260,7 +271,7 @@ class ExploreNotifier extends Notifier<ExploreState> {
         );
         return;
       }
-      
+
       _log.i('Fetching home feed from ${targetExt.id}...');
       final result = await PlatformBridge.getExtensionHomeFeed(targetExt.id);
 
@@ -276,10 +287,7 @@ class ExploreNotifier extends Notifier<ExploreState> {
       _log.d('getExtensionHomeFeed success=$success');
       if (!success) {
         final error = result['error'] as String? ?? 'Unknown error';
-        state = state.copyWith(
+        state = state.copyWith(isLoading: false, error: error);
-          isLoading: false,
-          error: error,
-        );
         return;
       }
 
@@ -291,10 +299,12 @@ class ExploreNotifier extends Notifier<ExploreState> {
           .toList();
 
       _log.i('Fetched ${sections.length} sections');
-      
+
       if (sections.isNotEmpty && sections.first.items.isNotEmpty) {
         final firstItem = sections.first.items.first;
-        _log.d('First item: name=${firstItem.name}, artists=${firstItem.artists}, type=${firstItem.type}');
+        _log.d(
+          'First item: name=${firstItem.name}, artists=${firstItem.artists}, type=${firstItem.type}',
+        );
       }
 
       final localGreeting = _getLocalGreeting();
@@ -311,10 +321,7 @@ class ExploreNotifier extends Notifier<ExploreState> {
       _saveToCache(sections);
     } catch (e, stack) {
       _log.e('Error fetching home feed: $e', e, stack);
-      state = state.copyWith(
+      state = state.copyWith(isLoading: false, error: e.toString());
-        isLoading: false,
-        error: e.toString(),
-      );
     }
   }
 
@@ -325,7 +332,6 @@ class ExploreNotifier extends Notifier<ExploreState> {
   Future<void> refresh() => fetchHomeFeed(forceRefresh: true);
 }
 
-
 final exploreProvider = NotifierProvider<ExploreNotifier, ExploreState>(() {
   return ExploreNotifier();
 });

lib/providers/settings_provider.dart

@@ -424,6 +424,15 @@ class SettingsNotifier extends Notifier<AppSettings> {
     _saveSettings();
   }
 
+  void setHomeFeedProvider(String? provider) {
+    if (provider == null || provider.isEmpty) {
+      state = state.copyWith(clearHomeFeedProvider: true);
+    } else {
+      state = state.copyWith(homeFeedProvider: provider);
+    }
+    _saveSettings();
+  }
+
   void setEnableLogging(bool enabled) {
     state = state.copyWith(enableLogging: enabled);
     _saveSettings();

lib/providers/track_provider.dart

@@ -2,6 +2,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotiflac_android/models/track.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/logger.dart';
+import 'package:spotiflac_android/utils/string_utils.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 
@@ -286,7 +287,9 @@ class TrackNotifier extends Notifier<TrackState> {
               playlistName: type == 'playlist'
                   ? result['name'] as String?
                   : null,
-              coverUrl: result['cover_url'] as String?,
+              coverUrl: normalizeCoverReference(
+                result['cover_url']?.toString(),
+              ),
               searchExtensionId: extensionId,
             );
             return;
@@ -313,10 +316,12 @@ class TrackNotifier extends Notifier<TrackState> {
               isLoading: false,
               artistId: artistData['id'] as String?,
               artistName: artistData['name'] as String?,
-              coverUrl:
+              coverUrl: normalizeRemoteHttpUrl(
-                  artistData['image_url'] as String? ??
+                (artistData['image_url'] ?? artistData['images'])?.toString(),
-                  artistData['images'] as String?,
+              ),
-              headerImageUrl: artistData['header_image'] as String?,
+              headerImageUrl: normalizeRemoteHttpUrl(
+                artistData['header_image']?.toString(),
+              ),
               monthlyListeners: artistData['listeners'] as int?,
               artistAlbums: albums,
               artistTopTracks: topTracks.isNotEmpty ? topTracks : null,
@@ -357,7 +362,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             albumId: id,
             albumName: albumInfo['name'] as String?,
-            coverUrl: albumInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(albumInfo['images']?.toString()),
           );
           _preWarmCacheForTracks(tracks);
         } else if (type == 'playlist') {
@@ -371,7 +376,9 @@ class TrackNotifier extends Notifier<TrackState> {
             tracks: tracks,
             isLoading: false,
             playlistName: playlistInfo['name'] as String?,
-            coverUrl: playlistInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(
+              playlistInfo['images']?.toString(),
+            ),
           );
           _preWarmCacheForTracks(tracks);
         } else if (type == 'artist') {
@@ -385,7 +392,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             artistId: artistInfo['id'] as String?,
             artistName: artistInfo['name'] as String?,
-            coverUrl: artistInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(artistInfo['images']?.toString()),
             artistAlbums: albums,
           );
         }
@@ -422,7 +429,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             albumId: 'qobuz:$id',
             albumName: albumInfo['name'] as String?,
-            coverUrl: albumInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(albumInfo['images']?.toString()),
           );
           _preWarmCacheForTracks(tracks);
         } else if (type == 'playlist') {
@@ -435,8 +442,9 @@ class TrackNotifier extends Notifier<TrackState> {
           final owner = playlistInfo['owner'] as Map<String, dynamic>?;
           final playlistName =
               (playlistInfo['name'] ?? owner?['name']) as String?;
-          final coverUrl =
+          final coverUrl = normalizeRemoteHttpUrl(
-              (playlistInfo['images'] ?? owner?['images']) as String?;
+            (playlistInfo['images'] ?? owner?['images'])?.toString(),
+          );
           state = TrackState(
             tracks: tracks,
             isLoading: false,
@@ -455,7 +463,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             artistId: artistInfo['id'] as String?,
             artistName: artistInfo['name'] as String?,
-            coverUrl: artistInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(artistInfo['images']?.toString()),
             artistAlbums: albums,
           );
         }
@@ -492,7 +500,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             albumId: 'tidal:$id',
             albumName: albumInfo['name'] as String?,
-            coverUrl: albumInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(albumInfo['images']?.toString()),
           );
           _preWarmCacheForTracks(tracks);
         } else if (type == 'playlist') {
@@ -505,8 +513,9 @@ class TrackNotifier extends Notifier<TrackState> {
           final owner = playlistInfo['owner'] as Map<String, dynamic>?;
           final playlistName =
               (playlistInfo['name'] ?? owner?['name']) as String?;
-          final coverUrl =
+          final coverUrl = normalizeRemoteHttpUrl(
-              (playlistInfo['images'] ?? owner?['images']) as String?;
+            (playlistInfo['images'] ?? owner?['images'])?.toString(),
+          );
           state = TrackState(
             tracks: tracks,
             isLoading: false,
@@ -525,7 +534,7 @@ class TrackNotifier extends Notifier<TrackState> {
             isLoading: false,
             artistId: artistInfo['id'] as String?,
             artistName: artistInfo['name'] as String?,
-            coverUrl: artistInfo['images'] as String?,
+            coverUrl: normalizeRemoteHttpUrl(artistInfo['images']?.toString()),
             artistAlbums: albums,
           );
         }
@@ -580,7 +589,7 @@ class TrackNotifier extends Notifier<TrackState> {
           isLoading: false,
           albumId: parsed['id'] as String?,
           albumName: albumInfo['name'] as String?,
-          coverUrl: albumInfo['images'] as String?,
+          coverUrl: normalizeRemoteHttpUrl(albumInfo['images']?.toString()),
         );
         _preWarmCacheForTracks(tracks);
       } else if (type == 'playlist') {
@@ -592,8 +601,9 @@ class TrackNotifier extends Notifier<TrackState> {
         final owner = playlistInfo['owner'] as Map<String, dynamic>?;
         final playlistName =
             (playlistInfo['name'] ?? owner?['name']) as String?;
-        final coverUrl =
+        final coverUrl = normalizeRemoteHttpUrl(
-            (playlistInfo['images'] ?? owner?['images']) as String?;
+          (playlistInfo['images'] ?? owner?['images'])?.toString(),
+        );
         state = TrackState(
           tracks: tracks,
           isLoading: false,
@@ -612,7 +622,7 @@ class TrackNotifier extends Notifier<TrackState> {
           isLoading: false,
           artistId: artistInfo['id'] as String?,
           artistName: artistInfo['name'] as String?,
-          coverUrl: artistInfo['images'] as String?,
+          coverUrl: normalizeRemoteHttpUrl(artistInfo['images']?.toString()),
           artistAlbums: albums,
         );
       }
@@ -986,7 +996,7 @@ class TrackNotifier extends Notifier<TrackState> {
       albumArtist: data['album_artist'] as String?,
       artistId: (data['artist_id'] ?? data['artistId'])?.toString(),
       albumId: data['album_id']?.toString(),
-      coverUrl: data['images'] as String?,
+      coverUrl: normalizeCoverReference(data['images']?.toString()),
       isrc: data['isrc'] as String?,
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -1017,7 +1027,9 @@ class TrackNotifier extends Notifier<TrackState> {
       albumArtist: data['album_artist']?.toString(),
       artistId: (data['artist_id'] ?? data['artistId'])?.toString(),
       albumId: data['album_id']?.toString(),
-      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      coverUrl: normalizeCoverReference(
+        (data['cover_url'] ?? data['images'])?.toString(),
+      ),
       isrc: data['isrc']?.toString(),
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -1062,7 +1074,9 @@ class TrackNotifier extends Notifier<TrackState> {
       name: data['name'] as String? ?? '',
       releaseDate: data['release_date'] as String? ?? '',
       totalTracks: data['total_tracks'] as int? ?? 0,
-      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      coverUrl: normalizeCoverReference(
+        (data['cover_url'] ?? data['images'])?.toString(),
+      ),
       albumType: data['album_type'] as String? ?? 'album',
       artists: data['artists'] as String? ?? '',
       providerId: data['provider_id']?.toString(),
@@ -1073,7 +1087,7 @@ class TrackNotifier extends Notifier<TrackState> {
     return SearchArtist(
       id: data['id'] as String? ?? '',
       name: data['name'] as String? ?? '',
-      imageUrl: data['images'] as String?,
+      imageUrl: normalizeRemoteHttpUrl(data['images']?.toString()),
       followers: data['followers'] as int? ?? 0,
       popularity: data['popularity'] as int? ?? 0,
     );
@@ -1084,7 +1098,7 @@ class TrackNotifier extends Notifier<TrackState> {
       id: data['id'] as String? ?? '',
       name: data['name'] as String? ?? '',
       artists: data['artists'] as String? ?? '',
-      imageUrl: data['images'] as String?,
+      imageUrl: normalizeRemoteHttpUrl(data['images']?.toString()),
       releaseDate: data['release_date'] as String?,
       totalTracks: data['total_tracks'] as int? ?? 0,
       albumType: data['album_type'] as String? ?? 'album',
@@ -1096,7 +1110,7 @@ class TrackNotifier extends Notifier<TrackState> {
       id: data['id'] as String? ?? '',
       name: data['name'] as String? ?? '',
       owner: data['owner'] as String? ?? '',
-      imageUrl: data['images'] as String?,
+      imageUrl: normalizeRemoteHttpUrl(data['images']?.toString()),
       totalTracks: data['total_tracks'] as int? ?? 0,
     );
   }

lib/screens/album_screen.dart

@@ -11,6 +11,7 @@ import 'package:spotiflac_android/providers/local_library_provider.dart';
 import 'package:spotiflac_android/providers/playback_provider.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 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/providers/library_collections_provider.dart';
@@ -94,7 +95,10 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
           .recordAlbumAccess(
             id: widget.albumId,
             name: widget.albumName,
-            artistName: widget.artistName ?? widget.tracks?.firstOrNull?.albumArtist ?? widget.tracks?.firstOrNull?.artistName,
+            artistName:
+                widget.artistName ??
+                widget.tracks?.firstOrNull?.albumArtist ??
+                widget.tracks?.firstOrNull?.artistName,
             imageUrl: widget.coverUrl,
             providerId: providerId,
           );
@@ -226,7 +230,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
       artistId:
           (data['artist_id'] ?? data['artistId'])?.toString() ?? _artistId,
       albumId: data['album_id']?.toString() ?? widget.albumId,
-      coverUrl: data['images'] as String?,
+      coverUrl: normalizeCoverReference(data['images']?.toString()),
       isrc: data['isrc'] as String?,
       duration: ((data['duration_ms'] as int? ?? 0) / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -280,7 +284,8 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
   ) {
     final expandedHeight = _calculateExpandedHeight(context);
     final tracks = _tracks ?? [];
-    final artistName = widget.artistName ??
+    final artistName =
+        widget.artistName ??
         (tracks.isNotEmpty
             ? (tracks.first.albumArtist ?? tracks.first.artistName)
             : null);
@@ -574,17 +579,21 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
     // Skip already-downloaded tracks
     final historyState = ref.read(downloadHistoryProvider);
     final settings = ref.read(settingsProvider);
-    final localLibState = (settings.localLibraryEnabled && settings.localLibraryShowDuplicates)
+    final localLibState =
+        (settings.localLibraryEnabled && settings.localLibraryShowDuplicates)
         ? ref.read(localLibraryProvider)
         : null;
     final tracksToQueue = <Track>[];
     int skippedCount = 0;
 
     for (final track in tracks) {
-      final isInHistory = historyState.isDownloaded(track.id) ||
+      final isInHistory =
+          historyState.isDownloaded(track.id) ||
           (track.isrc != null && historyState.getByIsrc(track.isrc!) != null) ||
-          historyState.findByTrackAndArtist(track.name, track.artistName) != null;
+          historyState.findByTrackAndArtist(track.name, track.artistName) !=
-      final isInLocal = localLibState?.existsInLibrary(
+              null;
+      final isInLocal =
+          localLibState?.existsInLibrary(
             isrc: track.isrc,
             trackName: track.name,
             artistName: track.artistName,
@@ -617,7 +626,11 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         onSelect: (quality, service) {
           ref
               .read(downloadQueueProvider.notifier)
-              .addMultipleToQueue(tracksToQueue, service, qualityOverride: quality);
+              .addMultipleToQueue(
+                tracksToQueue,
+                service,
+                qualityOverride: quality,
+              );
           _showQueuedSnackbar(context, tracksToQueue.length, skippedCount);
         },
       );
@@ -633,9 +646,9 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
     final message = skipped > 0
         ? context.l10n.discographySkippedDownloaded(added, skipped)
         : context.l10n.snackbarAddedTracksToQueue(added);
-    ScaffoldMessenger.of(context).showSnackBar(
+    ScaffoldMessenger.of(
-      SnackBar(content: Text(message)),
+      context,
-    );
+    ).showSnackBar(SnackBar(content: Text(message)));
   }
 
   Widget _buildLoveAllButton() {

lib/screens/artist_screen.dart

@@ -14,6 +14,7 @@ import 'package:spotiflac_android/providers/local_library_provider.dart';
 import 'package:spotiflac_android/providers/playback_provider.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/file_access.dart';
+import 'package:spotiflac_android/utils/string_utils.dart';
 import 'package:spotiflac_android/screens/album_screen.dart';
 import 'package:spotiflac_android/screens/home_tab.dart'
     show ExtensionAlbumScreen;
@@ -297,8 +298,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
               .toList();
         }
 
-        final topTracksList =
+        final topTracksList = artistData['top_tracks'] as List<dynamic>? ?? [];
-            artistData['top_tracks'] as List<dynamic>? ?? [];
         if (topTracksList.isNotEmpty) {
           topTracks = topTracksList
               .map((t) => _parseTrack(t as Map<String, dynamic>))
@@ -399,8 +399,9 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
           (data['artist_id'] ?? data['artistId'])?.toString() ??
           widget.artistId,
       albumId: data['album_id']?.toString() ?? album?.id,
-      coverUrl: (data['cover_url'] ?? data['images'] ?? album?.coverUrl)
+      coverUrl: normalizeCoverReference(
-          ?.toString(),
+        (data['cover_url'] ?? data['images'] ?? album?.coverUrl)?.toString(),
+      ),
       isrc: data['isrc']?.toString(),
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -414,18 +415,18 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
 
   ArtistAlbum _parseArtistAlbum(Map<String, dynamic> data) {
     final totalTracksValue = data['total_tracks'];
-    final totalTracks =
+    final totalTracks = totalTracksValue is int
-        totalTracksValue is int
+        ? totalTracksValue
-            ? totalTracksValue
+        : int.tryParse(totalTracksValue?.toString() ?? '') ?? 0;
-            : int.tryParse(totalTracksValue?.toString() ?? '') ?? 0;
 
     return ArtistAlbum(
       id: data['id'] as String? ?? '',
       name: (data['name'] ?? data['title'] ?? '').toString(),
       releaseDate: (data['release_date'] ?? '').toString(),
       totalTracks: totalTracks,
-      coverUrl: (data['cover_url'] ?? data['images'] ?? data['cover_art'])
+      coverUrl: normalizeCoverReference(
-          ?.toString(),
+        (data['cover_url'] ?? data['images'] ?? data['cover_art'])?.toString(),
+      ),
       albumType: (data['album_type'] ?? data['type'] ?? 'album').toString(),
       artists: (data['artists'] ?? data['artist'] ?? widget.artistName)
           .toString(),
@@ -1359,8 +1360,10 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
             },
             itemBuilder: (context, pageIndex) {
               final startIndex = pageIndex * tracksPerPage;
-              final endIndex =
+              final endIndex = (startIndex + tracksPerPage).clamp(
-                  (startIndex + tracksPerPage).clamp(0, tracks.length);
+                0,
+                tracks.length,
+              );
               final pageTracks = tracks.sublist(startIndex, endIndex);
 
               return Column(

lib/screens/home_tab.dart

@@ -23,6 +23,7 @@ import 'package:spotiflac_android/services/downloaded_embedded_cover_resolver.da
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/app_bar_layout.dart';
 import 'package:spotiflac_android/utils/file_access.dart';
+import 'package:spotiflac_android/utils/string_utils.dart';
 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';
@@ -4306,7 +4307,7 @@ class _ExtensionArtistScreenState extends ConsumerState<ExtensionArtistScreen> {
       artists: (data['artists'] ?? '').toString(),
       releaseDate: (data['release_date'] ?? '').toString(),
       totalTracks: data['total_tracks'] as int? ?? 0,
-      coverUrl: data['cover_url']?.toString(),
+      coverUrl: normalizeCoverReference(data['cover_url']?.toString()),
       albumType: (data['album_type'] ?? 'album').toString(),
       providerId: (data['provider_id'] ?? widget.extensionId).toString(),
     );
@@ -4331,7 +4332,9 @@ class _ExtensionArtistScreenState extends ConsumerState<ExtensionArtistScreen> {
           (data['artist_id'] ?? data['artistId'])?.toString() ??
           widget.artistId,
       albumId: data['album_id']?.toString(),
-      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      coverUrl: normalizeCoverReference(
+        (data['cover_url'] ?? data['images'])?.toString(),
+      ),
       isrc: data['isrc']?.toString(),
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,

lib/screens/playlist_screen.dart

@@ -8,6 +8,7 @@ import 'package:spotiflac_android/models/track.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/library_collections_provider.dart';
 import 'package:spotiflac_android/utils/file_access.dart';
+import 'package:spotiflac_android/utils/string_utils.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/providers/local_library_provider.dart';
 import 'package:spotiflac_android/providers/playback_provider.dart';
@@ -128,7 +129,9 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
       albumArtist: data['album_artist']?.toString(),
       artistId: (data['artist_id'] ?? data['artistId'])?.toString(),
       albumId: data['album_id']?.toString(),
-      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      coverUrl: normalizeCoverReference(
+        (data['cover_url'] ?? data['images'])?.toString(),
+      ),
       isrc: data['isrc']?.toString(),
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -532,7 +535,12 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
       tooltip: context.l10n.tooltipAddToPlaylist,
       onPressed: _tracks.isEmpty
           ? null
-          : () => showAddTracksToPlaylistSheet(context, ref, _tracks, playlistNamePrefill: widget.playlistName),
+          : () => showAddTracksToPlaylistSheet(
+              context,
+              ref,
+              _tracks,
+              playlistNamePrefill: widget.playlistName,
+            ),
     );
   }
 
@@ -611,17 +619,21 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
     // Skip already-downloaded tracks
     final historyState = ref.read(downloadHistoryProvider);
     final settings = ref.read(settingsProvider);
-    final localLibState = (settings.localLibraryEnabled && settings.localLibraryShowDuplicates)
+    final localLibState =
+        (settings.localLibraryEnabled && settings.localLibraryShowDuplicates)
         ? ref.read(localLibraryProvider)
         : null;
     final tracksToQueue = <Track>[];
     int skippedCount = 0;
 
     for (final track in tracks) {
-      final isInHistory = historyState.isDownloaded(track.id) ||
+      final isInHistory =
+          historyState.isDownloaded(track.id) ||
           (track.isrc != null && historyState.getByIsrc(track.isrc!) != null) ||
-          historyState.findByTrackAndArtist(track.name, track.artistName) != null;
+          historyState.findByTrackAndArtist(track.name, track.artistName) !=
-      final isInLocal = localLibState?.existsInLibrary(
+              null;
+      final isInLocal =
+          localLibState?.existsInLibrary(
             isrc: track.isrc,
             trackName: track.name,
             artistName: track.artistName,
@@ -679,9 +691,9 @@ class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
     final message = skipped > 0
         ? context.l10n.discographySkippedDownloaded(added, skipped)
         : context.l10n.snackbarAddedTracksToQueue(added);
-    ScaffoldMessenger.of(context).showSnackBar(
+    ScaffoldMessenger.of(
-      SnackBar(content: Text(message)),
+      context,
-    );
+    ).showSnackBar(SnackBar(content: Text(message)));
   }
 }
 

lib/screens/track_metadata_screen.dart

@@ -519,7 +519,8 @@ class _TrackMetadataScreenState extends ConsumerState<TrackMetadataScreen> {
 
   String get _filePath =>
       _isLocalItem ? _localLibraryItem!.filePath : _downloadItem!.filePath;
-  String? get _coverUrl => _isLocalItem ? null : _downloadItem!.coverUrl;
+  String? get _coverUrl =>
+      _isLocalItem ? null : normalizeRemoteHttpUrl(_downloadItem!.coverUrl);
   String? get _localCoverPath =>
       _isLocalItem ? _localLibraryItem!.coverPath : null;
   String? get _spotifyId => _isLocalItem ? null : _downloadItem!.spotifyId;

lib/utils/string_utils.dart

@@ -6,6 +6,41 @@ String? normalizeOptionalString(String? value) {
   return trimmed;
 }
 
+final RegExp _windowsAbsolutePathPattern = RegExp(r'^[A-Za-z]:[\\/]');
+
+bool _looksLikeLocalReference(String value) {
+  return value.startsWith('/') ||
+      value.startsWith('content://') ||
+      value.startsWith('file://') ||
+      _windowsAbsolutePathPattern.hasMatch(value);
+}
+
+String? normalizeCoverReference(String? value) {
+  final normalized = normalizeOptionalString(value);
+  if (normalized == null) return null;
+
+  if (normalized.startsWith('//')) {
+    return 'https:$normalized';
+  }
+
+  if (normalized.startsWith('http://') ||
+      normalized.startsWith('https://') ||
+      _looksLikeLocalReference(normalized)) {
+    return normalized;
+  }
+
+  return null;
+}
+
+String? normalizeRemoteHttpUrl(String? value) {
+  final normalized = normalizeCoverReference(value);
+  if (normalized == null) return null;
+  if (normalized.startsWith('http://') || normalized.startsWith('https://')) {
+    return normalized;
+  }
+  return null;
+}
+
 String formatSampleRateKHz(int sampleRate) {
   final khz = sampleRate / 1000;
   final precision = sampleRate % 1000 == 0 ? 0 : 1;