fix: create and delete playlist not working

lib/modules/player/player_actions.dart

@@ -2,7 +2,7 @@ import 'package:auto_route/auto_route.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:shadcn_flutter/shadcn_flutter.dart' hide Consumer;
+import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
 import 'package:spotube/collections/routes.gr.dart';
 

lib/pages/playlist/playlist.dart

@@ -95,7 +95,11 @@ class PlaylistPage extends HookConsumerWidget {
                   if (!confirmed) return null;
 
                   if (isFavoritePlaylist.asData!.value) {
+                    if (isUserPlaylist) {
+                      await favoritePlaylistsNotifier.delete(playlist.id);
+                    } else {
                       await favoritePlaylistsNotifier.removeFavorite(playlist);
+                    }
                   } else {
                     await favoritePlaylistsNotifier.addFavorite(playlist);
                   }

lib/provider/metadata_plugin/library/playlists.dart

@@ -64,15 +64,18 @@ class MetadataPluginSavedPlaylistsNotifier
   }
 
   Future<void> delete(String playlistId) async {
-    await update((state) async {
+    if (state.value == null) return;
-      (await metadataPlugin).playlist.deletePlaylist(playlistId);
+    final oldState = state;
-      return state.copyWith(
+    try {
-        items: state.items.where((e) => (e).id != playlistId).toList(),
+      state = const AsyncLoading();
-      );
+      await (await metadataPlugin).playlist.deletePlaylist(playlistId);
-    });
+      ref.invalidateSelf();
-
       ref.invalidate(metadataPluginIsSavedPlaylistProvider(playlistId));
       ref.invalidate(metadataPluginPlaylistTracksProvider(playlistId));
+    } catch (e) {
+      state = oldState;
+      rethrow;
+    }
   }
 
   Future<void> addTracks(String playlistId, List<String> trackIds) async {

lib/provider/metadata_plugin/playlist/playlist.dart

@@ -40,8 +40,7 @@ class MetadataPluginPlaylistNotifier
     if (userId == null) {
       throw Exception('User ID is not available. Please log in first.');
     }
-    await update(
+    state = const AsyncValue.loading();
-      (prev) async {
     try {
       final playlist = await (await metadataPlugin).playlist.create(
             userId,
@@ -50,13 +49,14 @@ class MetadataPluginPlaylistNotifier
             public: public,
             collaborative: collaborative,
           );
-          return playlist!;
+      if (playlist != null) {
+        state = AsyncValue.data(playlist);
+      }
+      ref.invalidate(metadataPluginSavedPlaylistsProvider);
     } catch (e) {
       onError?.call(e);
       rethrow;
     }
-      },
-    );
   }
 
   Future<void> modify({

lib/services/metadata/endpoints/playlist.dart

@@ -127,7 +127,7 @@ class MetadataPluginPlaylistEndpoint {
   }
 
   Future<void> deletePlaylist(String playlistId) async {
-    await hetuMetadataPlaylist.invoke(
+    return await hetuMetadataPlaylist.invoke(
       "deletePlaylist",
       positionalArgs: [playlistId],
     );