fix: android audio service and notification and fallback for lyrics when anonymous

lib/pages/lyrics/lyrics.dart

@@ -5,12 +5,14 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:platform_ui/platform_ui.dart';
 import 'package:spotube/collections/spotube_icons.dart';
+import 'package:spotube/components/shared/fallbacks/anonymous_fallback.dart';
 import 'package:spotube/components/shared/page_window_title_bar.dart';
 import 'package:spotube/components/shared/image/universal_image.dart';
 import 'package:spotube/hooks/use_custom_status_bar_color.dart';
 import 'package:spotube/hooks/use_palette_color.dart';
 import 'package:spotube/pages/lyrics/plain_lyrics.dart';
 import 'package:spotube/pages/lyrics/synced_lyrics.dart';
+import 'package:spotube/provider/authentication_provider.dart';
 import 'package:spotube/provider/playlist_queue_provider.dart';
 import 'package:spotube/utils/platform.dart';
 import 'package:spotube/utils/type_conversion_utils.dart';
@@ -39,6 +41,17 @@ class LyricsPage extends HookConsumerWidget {
       noSetBGColor: true,
     );
 
+    final auth = ref.watch(AuthenticationNotifier.provider);
+
+    if (auth == null) {
+      return PlatformScaffold(
+        appBar: !kIsMacOS && platform != TargetPlatform.windows && !isModal
+            ? PageWindowTitleBar()
+            : null,
+        body: const AnonymousFallback(),
+      );
+    }
+
     Widget body = [
       SyncedLyrics(palette: palette, isModal: isModal),
       PlainLyrics(palette: palette, isModal: isModal),

lib/pages/player/player.dart

@@ -18,6 +18,7 @@ import 'package:spotube/hooks/use_custom_status_bar_color.dart';
 import 'package:spotube/hooks/use_palette_color.dart';
 import 'package:spotube/models/local_track.dart';
 import 'package:spotube/pages/lyrics/lyrics.dart';
+import 'package:spotube/provider/authentication_provider.dart';
 import 'package:spotube/provider/playlist_queue_provider.dart';
 import 'package:spotube/provider/user_preferences_provider.dart';
 import 'package:spotube/utils/type_conversion_utils.dart';
@@ -29,6 +30,7 @@ class PlayerView extends HookConsumerWidget {
 
   @override
   Widget build(BuildContext context, ref) {
+    final auth = ref.watch(AuthenticationNotifier.provider);
     final currentTrack = ref.watch(PlaylistQueueNotifier.provider.select(
       (value) => value?.activeTrack,
     ));
@@ -104,8 +106,10 @@ class PlayerView extends HookConsumerWidget {
                           height: 30,
                           child: SpotubeMarqueeText(
                             text: currentTrack?.name ?? "Not playing",
-                            style:
+                            style: Theme.of(context)
-                                Theme.of(context).textTheme.headline5?.copyWith(
+                                .textTheme
+                                .headlineSmall
+                                ?.copyWith(
                                   fontWeight: FontWeight.bold,
                                   color: paletteColor.titleTextColor,
                                 ),
@@ -117,8 +121,10 @@ class PlayerView extends HookConsumerWidget {
                             TypeConversionUtils.artists_X_String<Artist>(
                               currentTrack?.artists ?? [],
                             ),
-                            style:
+                            style: Theme.of(context)
-                                Theme.of(context).textTheme.headline6!.copyWith(
+                                .textTheme
+                                .titleLarge!
+                                .copyWith(
                                   fontWeight: FontWeight.bold,
                                   color: paletteColor.bodyTextColor,
                                 ),
@@ -126,8 +132,10 @@ class PlayerView extends HookConsumerWidget {
                         else
                           TypeConversionUtils.artists_X_ClickableArtists(
                             currentTrack?.artists ?? [],
-                            textStyle:
+                            textStyle: Theme.of(context)
-                                Theme.of(context).textTheme.headline6!.copyWith(
+                                .textTheme
+                                .titleLarge!
+                                .copyWith(
                                   fontWeight: FontWeight.bold,
                                   color: paletteColor.bodyTextColor,
                                 ),
@@ -193,6 +201,7 @@ class PlayerView extends HookConsumerWidget {
                     mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                     floatingQueue: false,
                     extraActions: [
+                      if (auth != null)
                         PlatformIconButton(
                           tooltip: "Open Lyrics",
                           icon: const Icon(SpotubeIcons.music),

lib/pages/root/root_app.dart

@@ -10,15 +10,9 @@ import 'package:spotube/components/root/sidebar.dart';
 import 'package:spotube/components/root/spotube_navigation_bar.dart';
 import 'package:spotube/components/shared/page_window_title_bar.dart';
 import 'package:spotube/hooks/use_update_checker.dart';
+import 'package:spotube/provider/authentication_provider.dart';
 import 'package:spotube/provider/downloader_provider.dart';
 
-const rootPaths = {
-  0: "/",
-  1: "/search",
-  2: "/library",
-  3: "/lyrics",
-};
-
 class RootApp extends HookConsumerWidget {
   final Widget child;
   const RootApp({
@@ -30,6 +24,14 @@ class RootApp extends HookConsumerWidget {
   Widget build(BuildContext context, ref) {
     final index = useState(0);
     final isMounted = useIsMounted();
+    final auth = ref.watch(AuthenticationNotifier.provider);
+
+    final rootPaths = [
+      "/",
+      if (auth != null) "/search",
+      "/library",
+      if (auth != null) "/lyrics",
+    ].asMap();
 
     final downloader = ref.watch(downloaderProvider);
     useEffect(() {

lib/provider/playlist_queue_provider.dart

@@ -152,7 +152,10 @@ class PlaylistQueueNotifier extends PersistedStateNotifier<PlaylistQueue?> {
   void configure() async {
     if (kIsMobile || kIsMacOS) {
       mobileService = await AudioService.init(
-        builder: () => MobileAudioService(this),
+        builder: () => MobileAudioService(
+          this,
+          ref.read(VolumeProvider.provider.notifier),
+        ),
         config: const AudioServiceConfig(
           androidNotificationChannelId: 'com.krtirtho.Spotube',
           androidNotificationChannelName: 'Spotube',

lib/services/mobile_audio_service.dart

@@ -9,22 +9,28 @@ import 'package:spotube/services/audio_player.dart';
 class MobileAudioService extends BaseAudioHandler {
   AudioSession? session;
   final PlaylistQueueNotifier playlistNotifier;
+  final VolumeProvider volumeNotifier;
 
   PlaylistQueue? get playlist => playlistNotifier.state;
 
-  MobileAudioService(this.playlistNotifier) {
+  MobileAudioService(this.playlistNotifier, this.volumeNotifier) {
     AudioSession.instance.then((s) {
       session = s;
+      session?.configure(const AudioSessionConfiguration.music());
       s.interruptionEventStream.listen((event) async {
-        if (event.type != AudioInterruptionType.duck) {
+        switch (event.type) {
+          case AudioInterruptionType.duck:
+            await volumeNotifier.setVolume(event.begin ? 0.5 : 1.0);
+            break;
+          case AudioInterruptionType.pause:
+          case AudioInterruptionType.unknown:
             await playlistNotifier.pause();
+            break;
         }
       });
     });
     audioPlayer.onPlayerStateChanged.listen((state) async {
-      if (state != PlayerState.completed) {
       playbackState.add(await _transformEvent());
-      }
     });
 
     audioPlayer.onPositionChanged.listen((pos) async {
@@ -46,6 +52,27 @@ class MobileAudioService extends BaseAudioHandler {
   @override
   Future<void> seek(Duration position) => playlistNotifier.seek(position);
 
+  @override
+  Future<void> setShuffleMode(AudioServiceShuffleMode shuffleMode) async {
+    await super.setShuffleMode(shuffleMode);
+
+    if (shuffleMode == AudioServiceShuffleMode.all) {
+      playlistNotifier.shuffle();
+    } else {
+      playlistNotifier.unshuffle();
+    }
+  }
+
+  @override
+  Future<void> setRepeatMode(AudioServiceRepeatMode repeatMode) async {
+    super.setRepeatMode(repeatMode);
+    if (repeatMode == AudioServiceRepeatMode.all) {
+      playlistNotifier.loop();
+    } else {
+      playlistNotifier.unloop();
+    }
+  }
+
   @override
   Future<void> stop() async {
     await playlistNotifier.stop();
@@ -71,6 +98,7 @@ class MobileAudioService extends BaseAudioHandler {
   }
 
   Future<PlaybackState> _transformEvent() async {
+    final position = (await audioPlayer.getCurrentPosition()) ?? Duration.zero;
     return PlaybackState(
       controls: [
         MediaControl.skipToPrevious,
@@ -85,12 +113,17 @@ class MobileAudioService extends BaseAudioHandler {
       },
       androidCompactActionIndices: const [0, 1, 2],
       playing: audioPlayer.state == PlayerState.playing,
-      updatePosition: (await audioPlayer.getCurrentPosition()) ?? Duration.zero,
+      updatePosition: position,
-      processingState: audioPlayer.state == PlayerState.paused
+      bufferedPosition: position,
-          ? AudioProcessingState.buffering
+      shuffleMode: playlist?.isShuffled == true
-          : audioPlayer.state == PlayerState.playing
+          ? AudioServiceShuffleMode.all
-              ? AudioProcessingState.ready
+          : AudioServiceShuffleMode.none,
-              : AudioProcessingState.idle,
+      repeatMode: playlist?.isLooping == true
+          ? AudioServiceRepeatMode.one
+          : AudioServiceRepeatMode.all,
+      processingState: playlist?.isLoading == true
+          ? AudioProcessingState.loading
+          : AudioProcessingState.ready,
     );
   }
 }