fix(playback): alternative track sources switch not working

lib/modules/player/sibling_tracks_sheet.dart

@@ -18,6 +18,7 @@ import 'package:spotube/hooks/utils/use_debounce.dart';
 import 'package:spotube/models/database/database.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/models/playback/track_sources.dart';
+import 'package:spotube/provider/audio_player/audio_player.dart';
 import 'package:spotube/provider/audio_player/querying_track_info.dart';
 import 'package:spotube/provider/server/active_track_sources.dart';
 import 'package:spotube/provider/user_preferences/user_preferences_provider.dart';
@@ -95,7 +96,7 @@ class SiblingTracksSheet extends HookConsumerWidget {
     final controller = useScrollController();
 
     final searchRequest = useMemoized(() async {
-      if (searchTerm.trim().isEmpty) {
+      if (searchTerm.trim().isEmpty || activeTrackSource == null) {
         return <TrackSourceInfo>[];
       }
       if (preferences.audioSource == AudioSource.jiosaavn) {
@@ -107,7 +108,7 @@ class SiblingTracksSheet extends HookConsumerWidget {
           return siblingType.info;
         }));
 
-        final activeSourceInfo = activeTrackSource?.info as TrackSourceInfo;
+        final activeSourceInfo = activeTrackSource.info;
 
         return results
           ..removeWhere((element) => element.id == activeSourceInfo.id)
@@ -122,18 +123,18 @@ class SiblingTracksSheet extends HookConsumerWidget {
           resultsYt
               .map(YoutubeVideoInfo.fromVideo)
               .mapIndexed((i, video) async {
+                if (!context.mounted) return null;
                 final siblingType =
                     await YoutubeSourcedTrack.toSiblingType(i, video, ref);
                 return siblingType.info;
-          }),
+              })
+              .whereType<Future<TrackSourceInfo>>()
+              .toList(),
         );
-        final activeSourceInfo = activeTrackSource?.info as TrackSourceInfo;
+        final activeSourceInfo = activeTrackSource.info;
         return searchResults
           ..removeWhere((element) => element.id == activeSourceInfo.id)
-          ..insert(
-            0,
-            activeSourceInfo,
-          );
+          ..insert(0, activeSourceInfo);
       }
     }, [
       searchTerm,
@@ -165,8 +166,8 @@ class SiblingTracksSheet extends HookConsumerWidget {
     }, [activeTrack, previousActiveTrack]);
 
     final itemBuilder = useCallback(
-      (TrackSourceInfo sourceInfo) {
-        final icon = sourceInfoToIconMap[sourceInfo.runtimeType];
+      (TrackSourceInfo sourceInfo, AudioSource source) {
+        final icon = sourceInfoToIconMap[source];
         return ButtonTile(
           style: ButtonVariance.ghost,
           padding: const EdgeInsets.symmetric(horizontal: 8),
@@ -197,16 +198,20 @@ class SiblingTracksSheet extends HookConsumerWidget {
           enabled: !isFetchingActiveTrack,
           selected: !isFetchingActiveTrack &&
               sourceInfo.id == activeTrackSource?.info.id,
-          onPressed: () {
+          onPressed: () async {
             if (!isFetchingActiveTrack &&
                 sourceInfo.id != activeTrackSource?.info.id) {
-              activeTrackNotifier?.swapWithSibling(sourceInfo);
+              await activeTrackNotifier?.swapWithSibling(sourceInfo);
+              await ref.read(audioPlayerProvider.notifier).swapActiveSource();
+
+              if (context.mounted) {
                 if (MediaQuery.sizeOf(context).mdAndUp) {
                   closeOverlay(context);
                 } else {
                   closeDrawer(context);
                 }
               }
+            }
           },
         );
       },
@@ -301,8 +306,8 @@ class SiblingTracksSheet extends HookConsumerWidget {
                       controller: controller,
                       itemCount: siblings.length,
                       separatorBuilder: (context, index) => const Gap(8),
-                      itemBuilder: (context, index) =>
-                          itemBuilder(siblings[index]),
+                      itemBuilder: (context, index) => itemBuilder(
+                          siblings[index], activeTrackSource!.source),
                     ),
                   true => FutureBuilder(
                       future: searchRequest,
@@ -321,8 +326,10 @@ class SiblingTracksSheet extends HookConsumerWidget {
                           controller: controller,
                           itemCount: snapshot.data!.length,
                           separatorBuilder: (context, index) => const Gap(8),
-                          itemBuilder: (context, index) =>
-                              itemBuilder(snapshot.data![index]),
+                          itemBuilder: (context, index) => itemBuilder(
+                            snapshot.data![index],
+                            preferences.audioSource,
+                          ),
                         );
                       },
                     ),

lib/provider/audio_player/audio_player.dart

@@ -421,6 +421,20 @@ class AudioPlayerNotifier extends Notifier<AudioPlayerState> {
     );
   }
 
+  Future<void> swapActiveSource() async {
+    if (state.tracks.isEmpty || state.activeTrack is! SpotubeFullTrackObject) {
+      return;
+    }
+
+    final currentIndex = state.currentIndex;
+    final currentTrack = state.activeTrack as SpotubeFullTrackObject;
+    final swappedMedia = SpotubeMedia(currentTrack);
+
+    await audioPlayer.addTrackAt(swappedMedia, currentIndex + 1);
+    await audioPlayer.skipToNext();
+    await audioPlayer.removeTrack(currentIndex);
+  }
+
   Future<void> jumpToTrack(SpotubeTrackObject track) async {
     final index =
         state.tracks.toList().indexWhere((element) => element.id == track.id);

lib/services/sourced_track/sources/jiosaavn.dart

@@ -216,7 +216,7 @@ class JioSaavnSourcedTrack extends SourcedTrack {
       ref: ref,
       siblings: newSiblings,
       sources: source!,
-      info: info,
+      info: newSourceInfo,
       query: query,
       source: AudioSource.jiosaavn,
     );

lib/services/sourced_track/sources/piped.dart

@@ -269,7 +269,7 @@ class PipedSourcedTrack extends SourcedTrack {
       ref: ref,
       siblings: newSiblings,
       sources: toSources(manifest),
-      info: info,
+      info: newSourceInfo,
       query: query,
       source: source,
     );

lib/services/sourced_track/sources/youtube.dart

@@ -120,6 +120,7 @@ class YoutubeSourcedTrack extends SourcedTrack {
     dynamic ref,
   ) async {
     assert(ref is WidgetRef || ref is Ref, "Invalid ref type");
+
     List<TrackSource>? sourceMap;
     if (index == 0) {
       final manifest =
@@ -338,6 +339,7 @@ class YoutubeSourcedTrack extends SourcedTrack {
     final newSourceInfo = isStepSibling
         ? sibling
         : siblings.firstWhere((s) => s.id == sibling.id);
+
     final newSiblings = siblings.where((s) => s.id != sibling.id).toList()
       ..insert(0, info);
 
@@ -364,7 +366,7 @@ class YoutubeSourcedTrack extends SourcedTrack {
       source: source,
       siblings: newSiblings,
       sources: toTrackSources(manifest),
-      info: info,
+      info: newSourceInfo,
       query: query,
     );
   }