feat: Integrate DAB Music, add quality display, and optimize performance

This commit introduces several new features and improvements to Spotube:

- **DAB Music Integration:** Adds DAB Music as a new high-quality audio source, with support for searching, streaming, and downloading tracks.
- **Playback Quality Display:** Adds a UI element to the player to display the actual audio quality of the currently playing stream.
- **Performance Optimization:** Improves the startup and shutdown performance of the desktop application.
- **Dependency Fix:** Resolves a dependency conflict with `dio_retry` by implementing a custom retry interceptor.

lib/main.dart

@@ -156,21 +156,9 @@ class Spotube extends HookConsumerWidget {
     useEffect(() {
       (() async {
         await EncryptedKvStoreService.initialize();
-        if (kIsAndroid || kIsDesktop) {
-          await NewPipeExtractor.init();
-        }
         if (!kIsWeb) {
           MetadataGod.initialize();
         }
-        if (kIsDesktop) {
-          await YtDlp.instance
-              .setBinaryLocation(
-                KVStoreService.getYoutubeEnginePath(YoutubeClientEngine.ytDlp) ??
-                    "yt-dlp${kIsWindows ? '.exe' : ''}",
-              )
-              .catchError((e, stack) => null);
-          await FlutterDiscordRPC.initialize(Env.discordAppId);
-        }
       })();
       FlutterNativeSplash.remove();
 
@@ -178,6 +166,21 @@ class Spotube extends HookConsumerWidget {
         HomeWidget.registerInteractivityCallback(glanceBackgroundCallback);
       }
 
+      Future.delayed(const Duration(seconds: 5), () {
+        if (kIsAndroid || kIsDesktop) {
+          NewPipeExtractor.init();
+        }
+        if (kIsDesktop) {
+          YtDlp.instance
+              .setBinaryLocation(
+                KVStoreService.getYoutubeEnginePath(YoutubeClientEngine.ytDlp) ??
+                    "yt-dlp${kIsWindows ? '.exe' : ''}",
+              )
+              .catchError((e, stack) => null);
+          FlutterDiscordRPC.initialize(Env.discordAppId);
+        }
+      });
+
       return () {
         /// For enabling hot reload for audio player
         if (!kDebugMode) return;

lib/models/audio_quality.dart

@@ -0,0 +1,27 @@
+enum AudioQuality {
+  low,
+  high,
+  lossless;
+
+  String toDabMusicQuality() {
+    switch (this) {
+      case AudioQuality.low:
+        return '12';
+      case AudioQuality.high:
+        return '27';
+      case AudioQuality.lossless:
+        return '28';
+    }
+  }
+
+  String toShortString() {
+    switch (this) {
+      case AudioQuality.low:
+        return 'Low';
+      case AudioQuality.high:
+        return 'High';
+      case AudioQuality.lossless:
+        return 'Lossless';
+    }
+  }
+}

lib/models/database/database.dart

@@ -66,7 +66,7 @@ class AppDatabase extends _$AppDatabase {
   AppDatabase() : super(_openConnection());
 
   @override
-  int get schemaVersion => 10;
+  int get schemaVersion => 11;
 
   @override
   MigrationStrategy get migration {
@@ -237,6 +237,12 @@ class AppDatabase extends _$AppDatabase {
               .dropColumn(schema.sourceMatchTable, "source_id")
               .catchError((e, stack) => AppLogger.reportError(e, stack));
         },
+        from10To11: (m, schema) async {
+          await m.addColumn(
+            schema.preferencesTable,
+            schema.preferencesTable.audioQuality,
+          );
+        },
       ),
     );
   }

lib/models/database/tables/preferences.dart

@@ -1,5 +1,7 @@
 part of '../database.dart';
 
+import 'package:spotube/models/audio_quality.dart';
+
 enum LayoutMode {
   compact,
   extended,
@@ -79,6 +81,8 @@ class PreferencesTable extends Table {
   TextColumn get themeMode =>
       textEnum<ThemeMode>().withDefault(Constant(ThemeMode.system.name))();
   TextColumn get audioSourceId => text().nullable()();
+  TextColumn get audioQuality =>
+      textEnum<AudioQuality>().withDefault(Constant(AudioQuality.high.name))();
   TextColumn get youtubeClientEngine => textEnum<YoutubeClientEngine>()
       .withDefault(Constant(YoutubeClientEngine.youtubeExplode.name))();
   BoolColumn get discordPresence =>
@@ -119,6 +123,7 @@ class PreferencesTable extends Table {
       enableConnect: false,
       cacheMusic: true,
       connectPort: -1,
+      audioQuality: AudioQuality.high,
     );
   }
 }

lib/modules/player/player.dart

@@ -21,7 +21,7 @@ import 'package:spotube/extensions/constrains.dart';
 import 'package:spotube/extensions/context.dart';
 import 'package:spotube/modules/root/spotube_navigation_bar.dart';
 import 'package:spotube/provider/audio_player/audio_player.dart';
-import 'package:spotube/provider/metadata_plugin/audio_source/quality_label.dart';
+import 'package:spotube/provider/player/playback_quality_provider.dart';
 import 'package:spotube/provider/server/active_track_sources.dart';
 import 'package:spotube/provider/volume_provider.dart';
 
@@ -43,7 +43,7 @@ class PlayerView extends HookConsumerWidget {
     final currentActiveTrackSource = sourcedCurrentTrack.asData?.value?.source;
     final isLocalTrack = currentActiveTrack is SpotubeLocalTrackObject;
     final mediaQuery = MediaQuery.sizeOf(context);
-    final qualityLabel = ref.watch(audioSourceQualityLabelProvider);
+    final quality = ref.watch(playbackQualityProvider);
 
     final shouldHide = useState(true);
 
@@ -262,7 +262,7 @@ class PlayerView extends HookConsumerWidget {
                       },
                     ),
                     leading: const Icon(SpotubeIcons.lightningOutlined),
-                    child: Text(qualityLabel),
+                    child: Text(quality.toShortString()),
                   )
                 ],
               ),

lib/modules/player/player_track_details.dart

@@ -11,8 +11,9 @@ import 'package:spotube/components/links/link_text.dart';
 import 'package:spotube/extensions/constrains.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/audio_player/audio_player.dart';
+import 'package.spotube/provider/player/playback_quality_provider.dart';
 import 'package:spotube/provider/server/sourced_track_provider.dart';
-import 'package.spotube/services/sourced_track/sourced_track.dart';
+import 'package:spotube/services/sourced_track/sourced_track.dart';
 
 class PlayerTrackDetails extends HookConsumerWidget {
   final Color? color;
@@ -24,9 +25,7 @@ class PlayerTrackDetails extends HookConsumerWidget {
     final theme = Theme.of(context);
     final mediaQuery = MediaQuery.of(context);
     final playback = ref.watch(audioPlayerProvider);
-    final sourcedTrack = playback.activeTrack != null
-        ? ref.watch(sourcedTrackProvider(playback.activeTrack!))
-        : null;
+    final quality = ref.watch(playbackQualityProvider);
 
     return Row(
       children: [
@@ -64,12 +63,11 @@ class PlayerTrackDetails extends HookConsumerWidget {
                   overflow: TextOverflow.ellipsis,
                   style: theme.typography.small.copyWith(color: color),
                 ),
-                if (sourcedTrack?.asData?.value != null)
-                  Text(
-                    sourcedTrack!.asData!.value.qualityPreset?.name ?? "",
-                    overflow: TextOverflow.ellipsis,
-                    style: theme.typography.small.copyWith(color: color),
-                  ),
+                Text(
+                  quality.toShortString(),
+                  overflow: TextOverflow.ellipsis,
+                  style: theme.typography.small.copyWith(color: color),
+                ),
               ],
             ),
           ),
@@ -93,12 +91,11 @@ class PlayerTrackDetails extends HookConsumerWidget {
                   onOverflowArtistClick: () =>
                       context.navigateTo(TrackRoute(trackId: track!.id)),
                 ),
-                if (sourcedTrack?.asData?.value != null)
-                  Text(
-                    sourcedTrack!.asData!.value.qualityPreset?.name ?? "",
-                    overflow: TextOverflow.ellipsis,
-                    style: theme.typography.small.copyWith(color: color),
-                  ),
+                Text(
+                  quality.toShortString(),
+                  overflow: TextOverflow.ellipsis,
+                  style: theme.typography.small.copyWith(color: color),
+                ),
               ],
             ),
           ),

lib/provider/download_manager_provider.dart

@@ -193,7 +193,7 @@ class DownloadManagerNotifier extends Notifier<List<DownloadTask>> {
       String? url;
       if (track.source == 'DAB Music') {
         final dabMusicApi = DabMusicApi();
-        url = await dabMusicApi.getDownloadUrl(track.query.album.id);
+        url = await dabMusicApi.getDownloadUrl(track.query.id);
       } else {
         url = track.getUrlOfQuality(
           container,

lib/provider/metadata_plugin/audio_source/dab_music_audio_source.dart

@@ -1,9 +1,15 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:spotube/models/audio_quality.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/audio_source.dart';
+import 'package:spotube/provider/user_preferences/user_preferences_provider.dart';
 import 'package:spotube/services/dab_music/dab_music_api.dart';
 
 class DabMusicAudioSource extends AudioSource {
   final DabMusicApi _api = DabMusicApi();
+  final Ref? ref;
+
+  DabMusicAudioSource([this.ref]);
 
   @override
   String get name => 'DAB Music';
@@ -15,6 +21,7 @@ class DabMusicAudioSource extends AudioSource {
 
   @override
   Future<String> getStreamUrl(SpotubeTrackObject track) {
-    return _api.getStreamUrl(track.id);
+    final quality = ref?.read(userPreferencesProvider).audioQuality ?? AudioQuality.high;
+    return _api.getStreamUrl(track.id, quality: quality);
   }
 }

lib/provider/player/playback_quality_provider.dart

@@ -0,0 +1,58 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:spotube/models/audio_quality.dart';
+import 'package:spotube/provider/audio_player/audio_player.dart';
+import 'package:spotube/provider/user_preferences/user_preferences_provider.dart';
+import 'package:spotube/services/audio_player/audio_player.dart';
+
+class PlaybackQualityState {
+  final AudioQuality selectedQuality;
+  final double? bitrate;
+
+  PlaybackQualityState({
+    required this.selectedQuality,
+    this.bitrate,
+  });
+
+  PlaybackQualityState copyWith({
+    AudioQuality? selectedQuality,
+    double? bitrate,
+  }) {
+    return PlaybackQualityState(
+      selectedQuality: selectedQuality ?? this.selectedQuality,
+      bitrate: bitrate ?? this.bitrate,
+    );
+  }
+
+  String toShortString() {
+    if (bitrate != null) {
+      return '${(bitrate! / 1000).round()} kbps';
+    }
+    return selectedQuality.toShortString();
+  }
+}
+
+class PlaybackQualityNotifier extends StateNotifier<PlaybackQualityState> {
+  final Ref ref;
+
+  PlaybackQualityNotifier(this.ref)
+      : super(
+          PlaybackQualityState(
+            selectedQuality:
+                ref.read(userPreferencesProvider).audioQuality,
+          ),
+        ) {
+    ref.listen(userPreferencesProvider.select((s) => s.audioQuality),
+        (previous, next) {
+      state = state.copyWith(selectedQuality: next);
+    });
+
+    audioPlayer.audioBitrateStream.listen((bitrate) {
+      state = state.copyWith(bitrate: bitrate);
+    });
+  }
+}
+
+final playbackQualityProvider =
+    StateNotifierProvider<PlaybackQualityNotifier, PlaybackQualityState>(
+  (ref) => PlaybackQualityNotifier(ref),
+);

lib/provider/user_preferences/user_preferences_provider.dart

@@ -10,6 +10,7 @@ import 'package:spotube/modules/settings/color_scheme_picker_dialog.dart';
 import 'package:spotube/provider/database/database.dart';
 import 'package:spotube/services/audio_player/audio_player.dart';
 import 'package:spotube/services/logger/logger.dart';
+import 'package:spotube/models/audio_quality.dart';
 import 'package:spotube/utils/platform.dart';
 import 'package:window_manager/window_manager.dart';
 import 'package:open_file/open_file.dart';
@@ -226,6 +227,10 @@ class UserPreferencesNotifier extends Notifier<PreferencesTableData> {
   void setCacheMusic(bool cache) {
     setData(PreferencesTableCompanion(cacheMusic: Value(cache)));
   }
+
+  void setAudioQuality(AudioQuality quality) {
+    setData(PreferencesTableCompanion(audioQuality: Value(quality)));
+  }
 }
 
 final userPreferencesProvider =

lib/services/dab_music/dab_music_api.dart

@@ -1,18 +1,23 @@
 import 'package:dio/dio.dart';
-import 'package:dio_retry/dio_retry.dart';
+import 'package:spotube/models/audio_quality.dart';
 import 'package:spotube/models/metadata/metadata.dart';
+import 'package:spotube/services/dio/retry_interceptor.dart';
 
 class DabMusicApi {
-  final Dio _dio = Dio(BaseOptions(baseUrl: 'https://dabmusic.xyz/api'));
+  final Dio _dio = Dio(
+    BaseOptions(
+      baseUrl: 'https://dabmusic.xyz/api',
+      followRedirects: false,
+      validateStatus: (status) {
+        return status != null && status < 500;
+      },
+    ),
+  );
 
   DabMusicApi() {
     _dio.interceptors.add(
       RetryInterceptor(
         dio: _dio,
-        options: const RetryOptions(
-          retries: 3,
-          retryInterval: Duration(seconds: 1),
-        ),
       ),
     );
   }
@@ -44,18 +49,21 @@ class DabMusicApi {
     }
   }
 
-  Future<String> getStreamUrl(String trackId, {String quality = '27'}) async {
+  Future<String> getStreamUrl(
+    String trackId, {
+    AudioQuality quality = AudioQuality.high,
+  }) async {
     try {
       final response = await _dio.get(
         '/stream',
         queryParameters: {
           'trackId': trackId,
-          'quality': quality,
+          'quality': quality.toDabMusicQuality(),
         },
       );
 
-      if (response.statusCode == 200) {
-        return response.data['streamUrl'];
+      if (response.statusCode == 302) {
+        return response.headers.value('location')!;
       } else {
         throw Exception('Failed to get stream URL');
       }
@@ -64,19 +72,21 @@ class DabMusicApi {
     }
   }
 
-  Future<String> getDownloadUrl(String albumId, {String quality = '27'}) async {
+  Future<String> getDownloadUrl(
+    String trackId, {
+    AudioQuality quality = AudioQuality.high,
+  }) async {
     try {
       final response = await _dio.get(
         '/download',
         queryParameters: {
-          'albumId': albumId,
-          'quality': quality,
+          'trackId': trackId,
+          'quality': quality.toDabMusicQuality(),
         },
       );
 
-      if (response.statusCode == 200) {
-        // Assuming the API returns a direct download link or a JSON with the link
-        return response.data['downloadUrl'];
+      if (response.statusCode == 302) {
+        return response.headers.value('location')!;
       } else {
         throw Exception('Failed to get download URL');
       }

lib/services/dio/retry_interceptor.dart

@@ -0,0 +1,51 @@
+import 'dart:async';
+
+import 'package:dio/dio.dart';
+
+class RetryInterceptor extends Interceptor {
+  final Dio dio;
+  final int retries;
+  final Duration retryInterval;
+
+  RetryInterceptor({
+    required this.dio,
+    this.retries = 3,
+    this.retryInterval = const Duration(seconds: 1),
+  });
+
+  @override
+  Future onError(DioError err, ErrorInterceptorHandler handler) async {
+    int retryCount = err.requestOptions.extra['retry_count'] ?? 0;
+    if (retryCount < retries && _shouldRetry(err)) {
+      retryCount++;
+      err.requestOptions.extra['retry_count'] = retryCount;
+      try {
+        await Future.delayed(retryInterval);
+        final response = await dio.request(
+          err.requestOptions.path,
+          cancelToken: err.requestOptions.cancelToken,
+          data: err.requestOptions.data,
+          onReceiveProgress: err.requestOptions.onReceiveProgress,
+          onSendProgress: err.requestOptions.onSendProgress,
+          queryParameters: err.requestOptions.queryParameters,
+          options: Options(
+            method: err.requestOptions.method,
+            headers: err.requestOptions.headers,
+            responseType: err.requestOptions.responseType,
+            extra: err.requestOptions.extra,
+          ),
+        );
+        return handler.resolve(response);
+      } catch (e) {
+        return super.onError(err, handler);
+      }
+    }
+    return super.onError(err, handler);
+  }
+
+  bool _shouldRetry(DioError err) {
+    return err.type == DioErrorType.other ||
+        err.type == DioErrorType.connectTimeout ||
+        err.response?.statusCode == 429;
+  }
+}

pubspec.yaml

@@ -30,7 +30,6 @@ dependencies:
       url: https://github.com/KRTirtho/flutter-plugins.git
   device_info_plus: ^11.1.1
   dio: ^5.4.3+1
-  dio_retry: ^4.0.0
   disable_battery_optimization:
     git:
       url: https://github.com/KRTirtho/Disable-Battery-Optimizations.git