perf: faster app startup time by ~1 second

achieved by using sync methods. since most of the functions are executed on startup only

lib/base/settings_file_writer.dart

@@ -11,10 +11,10 @@ mixin SettingsFileWriter {
   Duration get delay => const Duration(seconds: 2);
 
   @protected
-  Future<dynamic> prepareSettingsFile_() async {
-    final file = await File(filePath).create(recursive: true);
+  dynamic prepareSettingsFile_() {
+    final file = File(filePath)..createSync(recursive: true);
     try {
-      return await file.readAsJson();
+      return file.readAsJsonSync();
     } catch (e) {
       printy(e, isError: true);
     }

lib/controller/backup_controller.dart

@@ -280,7 +280,11 @@ class BackupController {
   }
 
   Future<void> _readNewFiles() async {
-    await settings.prepareSettingsFile();
+    settings.equalizer.prepareSettingsFile();
+    settings.player.prepareSettingsFile();
+    settings.youtube.prepareSettingsFile();
+    settings.prepareSettingsFile();
+
     Indexer.inst.prepareTracksFile();
 
     QueueController.inst.prepareAllQueuesFile();
@@ -289,12 +293,12 @@ class BackupController {
 
     PlaylistController.inst.prepareAllPlaylists();
     HistoryController.inst.prepareHistoryFile().then((_) => Indexer.inst.sortMediaTracksSubListsAfterHistoryPrepared());
-    await PlaylistController.inst.prepareDefaultPlaylistsFile();
-    // await QueueController.inst.prepareLatestQueue();
+    PlaylistController.inst.prepareDefaultPlaylistsFile();
+    // await QueueController.inst.prepareLatestQueueSync();
 
     YoutubePlaylistController.inst.prepareAllPlaylists();
     YoutubeHistoryController.inst.prepareHistoryFile();
-    await YoutubePlaylistController.inst.prepareDefaultPlaylistsFile();
+    YoutubePlaylistController.inst.prepareDefaultPlaylistsFile();
     YoutubeInfoController.utils.fillBackupInfoMap(); // for history videos info.
   }
 }

lib/controller/indexer_controller.dart

@@ -151,18 +151,18 @@ class Indexer {
     return (null, null);
   }
 
-  Future<void> prepareTracksFile() async {
+  void prepareTracksFile() {
     _fetchMediaStoreTracks(); // to fill ids map
 
     /// Only awaits if the track file exists, otherwise it will get into normally and start indexing.
-    if (await File(AppPaths.TRACKS).existsAndValid()) {
-      await readTrackData();
+    if (File(AppPaths.TRACKS).existsAndValidSync()) {
+      readTrackData();
       _afterIndexing();
     }
 
     /// doesnt exists
     else {
-      await File(AppPaths.TRACKS).create();
+      File(AppPaths.TRACKS).createSync();
       refreshLibraryAndCheckForDiff(forceReIndex: true, useMediaStore: _defaultUseMediaStore);
     }
   }
@@ -994,24 +994,25 @@ class Indexer {
     await File(AppPaths.TRACKS_STATS).writeAsJson(trackStatsMap.values.map((e) => e.toJson()).toList());
   }
 
-  Future<void> readTrackData() async {
+  void readTrackData() {
     // reading stats file containing track rating etc.
-    final statsResult = await _readTracksStatsCompute.thready(AppPaths.TRACKS_STATS);
+    final statsResult = _readTracksStatsCompute(AppPaths.TRACKS_STATS);
     trackStatsMap.value = statsResult;
 
     tracksInfoList.clear(); // clearing for cases which refreshing library is required (like after changing separators)
 
     /// Reading actual track file.
     final splitconfig = _createSplitConfig();
 
+    final tracksResult = _readTracksFileCompute(splitconfig);
     allTracksMappedByPath.value = tracksResult.$1;
     allTracksMappedByYTID = tracksResult.$2;
     tracksInfoList.value = tracksResult.$3;
 
     printy("All Tracks Length From File: ${tracksInfoList.length}");
   }
 
-  static Future<Map<Track, TrackStats>> _readTracksStatsCompute(String path) async {
+  static Map<Track, TrackStats> _readTracksStatsCompute(String path) {
     final map = <Track, TrackStats>{};
     final list = File(path).readAsJsonSync() as List?;
     if (list != null) {
@@ -1028,7 +1029,7 @@ class Indexer {
     return map;
   }
 
-  static (Map<Track, TrackExtended>, Map<String, List<Track>>, List<Track>) _readTracksFileCompute(_SplitArtistGenreConfig config) {
+  static (Map<Track, TrackExtended>, Map<String, List<Track>>, List<Track>) _readTracksFileCompute(SplitArtistGenreConfigsWrapper config) {
     final map = <Track, TrackExtended>{};
     final idsMap = <String, List<Track>>{};
     final allTracks = <Track>[];

lib/controller/playlist_controller.dart

@@ -537,11 +537,11 @@ class PlaylistController extends PlaylistManager<TrackWithDate, Track> {
   }
 
   @override
-  Future<GeneralPlaylist<TrackWithDate>?> prepareFavouritePlaylistFunction() async {
-    return await _prepareFavouritesFile.thready(favouritePlaylistPath);
+  GeneralPlaylist<TrackWithDate>? prepareFavouritePlaylistFunction() {
+    return _prepareFavouritesFile(favouritePlaylistPath);
   }
 
-  static Future<LocalPlaylist?> _prepareFavouritesFile(String path) async {
+  static LocalPlaylist? _prepareFavouritesFile(String path) {
     try {
       final response = File(path).readAsJsonSync();
       return LocalPlaylist.fromJson(response, TrackWithDate.fromJson);

lib/controller/queue_controller.dart

@@ -221,13 +221,13 @@ class QueueController {
   }
 
   /// Assigns the last queue to the [Player]
-  Future<void> prepareLatestQueue() async {
+  void prepareLatestQueueSync() {
     int index = 0;
     final latestQueue = <Playable>[];
 
     // -- Reading file.
     try {
-      final res = await File(AppPaths.LATEST_QUEUE).readAsJson() as Map?;
+      final res = File(AppPaths.LATEST_QUEUE).readAsJsonSync() as Map?;
       if (res != null) {
         final t = res['type'] as String? ?? LibraryCategory.localTracks;
         final items = res['items'] as List;

lib/controller/settings.equalizer.dart

@@ -30,9 +30,10 @@ class EqualizerSettings with SettingsFileWriter {
     _writeToStorage();
   }
 
-  Future<void> prepareSettingsFile() async {
-    final json = await prepareSettingsFile_();
-    if (json == null) return;
+  void prepareSettingsFile() {
+    final json = prepareSettingsFile_();
+    if (json is! Map) return;
+
     try {
       preset = json["preset"];
       equalizerEnabled = json["equalizerEnabled"] ?? equalizerEnabled;

lib/controller/settings.player.dart

@@ -119,9 +119,10 @@ class _PlayerSettings with SettingsFileWriter {
     _writeToStorage();
   }
 
-  Future<void> prepareSettingsFile() async {
-    final json = await prepareSettingsFile_();
-    if (json == null) return;
+  void prepareSettingsFile() {
+    final json = prepareSettingsFile_();
+    if (json is! Map) return;
+
     try {
       enableVolumeFadeOnPlayPause.value = json['enableVolumeFadeOnPlayPause'] ?? enableVolumeFadeOnPlayPause.value;
       volume.value = json['volume'] ?? volume.value;

lib/controller/settings.youtube.dart

@@ -89,11 +89,11 @@ class _YoutubeSettings with SettingsFileWriter {
     _writeToStorage();
   }
 
-  Future<void> prepareSettingsFile() async {
-    final json = await prepareSettingsFile_();
-    if (json == null) return;
+  void prepareSettingsFile() {
+    final json = prepareSettingsFile_();
+    if (json is! Map) return;
+
     try {
-      json as Map;
       showChannelWatermarkFullscreen.value = json['showChannelWatermarkFullscreen'] ?? showChannelWatermarkFullscreen.value;
       autoStartRadio.value = json['autoStartRadio'] ?? autoStartRadio.value;
 

lib/controller/settings_controller.dart

@@ -271,9 +271,9 @@ class _SettingsController with SettingsFileWriter {
   bool canAskForBatteryOptimizations = true;
   bool didSupportNamida = false;
 
-  Future<void> prepareSettingsFile() async {
-    final json = await prepareSettingsFile_();
-    if (json == null) return;
+  void prepareSettingsFile() {
+    final json = prepareSettingsFile_();
+    if (json is! Map) return;
 
     try {
       /// Assigning Values

lib/core/translations/language.dart

@@ -42,7 +42,7 @@ class Language extends LanguageKeys {
 
     // -- Assigning default map, used as a backup in case a key doesnt exist in [lang].
     final path = inst._getAssetPath(kDefaultLang);
-    final map = await jsonDecode(await rootBundle.loadString(path)) as Map<String, dynamic>;
+    final map = jsonDecode(await rootBundle.loadString(path)) as Map<String, dynamic>;
     _defaultMap = map.cast();
     // ---------
 
@@ -69,7 +69,7 @@ class Language extends LanguageKeys {
   static Future<List<NamidaLanguage>> getAllLanguages() async {
     const path = 'assets/language/langs.json';
     final available = await rootBundle.loadString(path);
-    final availableLangs = await jsonDecode(available) as List?;
+    final availableLangs = jsonDecode(available) as List?;
     return availableLangs?.mapped((e) => NamidaLanguage.fromJson(e)) ?? [];
   }
 
@@ -82,7 +82,7 @@ class Language extends LanguageKeys {
     try {
       late Map<String, dynamic> map;
       try {
-        map = trMap ?? await jsonDecode(await rootBundle.loadString(path)) as Map<String, dynamic>;
+        map = trMap ?? jsonDecode(await rootBundle.loadString(path)) as Map<String, dynamic>;
       } catch (e) {
         final backupLocal = _backupLocalMaps[lang];
         if (backupLocal != null) {

lib/main.dart

@@ -138,17 +138,14 @@ void mainInitialization() async {
     AppDirs.INTERNAL_STORAGE,
   ]);
 
-  await Future.wait([
-    settings.equalizer.prepareSettingsFile(),
-    settings.player.prepareSettingsFile(),
-    settings.youtube.prepareSettingsFile(),
-    settings.prepareSettingsFile(),
-  ]);
+  settings.equalizer.prepareSettingsFile();
+  settings.player.prepareSettingsFile();
+  settings.youtube.prepareSettingsFile();
+  settings.prepareSettingsFile();
+
+  if (!shouldShowOnBoarding) Indexer.inst.prepareTracksFile();
+  await Language.initialize();
 
-  await Future.wait([
-    if (!shouldShowOnBoarding) Indexer.inst.prepareTracksFile(),
-    Language.initialize(),
-  ]);
   ConnectivityController.inst.initialize();
   NamidaChannel.inst.setCanEnterPip(settings.enablePip.value);
 
@@ -179,26 +176,24 @@ void mainInitialization() async {
 
   HistoryController.inst.prepareHistoryFile().then((_) => Indexer.inst.sortMediaTracksSubListsAfterHistoryPrepared());
   YoutubeHistoryController.inst.prepareHistoryFile();
-  await Future.wait([
-    PlaylistController.inst.prepareDefaultPlaylistsFile(),
-    if (!shouldShowOnBoarding) QueueController.inst.prepareLatestQueue(),
-    YoutubePlaylistController.inst.prepareDefaultPlaylistsFile(),
-    YoutubeController.inst.loadDownloadTasksInfoFile(),
-    YoutubeSubscriptionsController.inst.loadSubscriptionsFile()
-  ]);
 
+  PlaylistController.inst.prepareDefaultPlaylistsFile();
+  if (!shouldShowOnBoarding) QueueController.inst.prepareLatestQueueSync();
+
+  YoutubePlaylistController.inst.prepareDefaultPlaylistsFile();
+  YoutubeSubscriptionsController.inst.loadSubscriptionsFileSync();
+  YoutubeController.inst.loadDownloadTasksInfoFileSync();
   YoutubePlaylistController.inst.prepareAllPlaylists();
 
   YoutubeInfoController.utils.fillBackupInfoMap(); // for history videos info.
 
-  await _initializeIntenties();
+  _initializeIntenties();
 
-  await Future.wait([
-    SystemChrome.setPreferredOrientations(kDefaultOrientations),
-    NamidaNavigator.inst.setDefaultSystemUI(),
-    FlutterDisplayMode.setHighRefreshRate().catchError((_) {}),
-  ]);
+  SystemChrome.setPreferredOrientations(kDefaultOrientations);
+  NamidaNavigator.inst.setDefaultSystemUI();
+  FlutterDisplayMode.setHighRefreshRate().catchError((_) {});
 
+  //
   NamidaNavigator.inst.setDefaultSystemUIOverlayStyle();
 
   ScrollSearchController.inst.initialize();
@@ -272,7 +267,7 @@ void _initLifeCycle() {
   });
 }
 
-Future<void> _initializeIntenties() async {
+void _initializeIntenties() {
   Future<void> clearIntentCachedFiles() async {
     final cacheDir = await pp.getTemporaryDirectory();
     await for (final cf in cacheDir.list()) {
@@ -292,7 +287,7 @@ Future<void> _initializeIntenties() async {
     });
   }
 
-  Future<void> playFiles(List<SharedFile> files) async {
+  void playFiles(List<SharedFile> files) {
     // -- deep links
     if (files.length == 1) {
       final linkRaw = files.first.value;
@@ -358,7 +353,7 @@ Future<void> _initializeIntenties() async {
   }
 
   // -- Recieving Initial Android Shared Intent.
-  await playFiles(await FlutterSharingIntent.instance.getInitialSharing());
+  FlutterSharingIntent.instance.getInitialSharing().then(playFiles);
 
   // -- Listening to Android Shared Intents.
   FlutterSharingIntent.instance.getMediaStream().listen(

lib/ui/pages/onboarding.dart

@@ -85,7 +85,7 @@ class _FirstRunConfigureScreenState extends State<FirstRunConfigureScreen> {
       },
     ));
     Indexer.inst.prepareTracksFile();
-    QueueController.inst.prepareLatestQueue();
+    QueueController.inst.prepareLatestQueueSync();
   }
 
   void _onRestoreBackupIconTap() async {

lib/ui/widgets/settings/indexer_settings.dart

@@ -402,7 +402,7 @@ class IndexerSettings extends SettingSubpageProvider {
                 subtitle: "${lang.EXTRACT_FEAT_ARTIST_SUBTITLE} ${lang.INSTANTLY_APPLIES}.",
                 onChanged: (isTrue) async {
                   settings.save(extractFeatArtistFromTitle: !isTrue);
-                  await Indexer.inst.prepareTracksFile();
+                  Indexer.inst.prepareTracksFile();
                 },
                 value: settings.extractFeatArtistFromTitle.valueR,
               ),
@@ -694,7 +694,7 @@ class IndexerSettings extends SettingSubpageProvider {
           ? null
           : () async {
               updatingLibrary.value = true;
-              await Indexer.inst.prepareTracksFile();
+              Indexer.inst.prepareTracksFile();
             },
       durationInMs: 200,
       dialog: CustomBlurryDialog(

lib/ui/widgets/settings/theme_settings.dart

@@ -102,7 +102,7 @@ class ThemeSetting extends SettingSubpageProvider {
                       if (path != null) {
                         try {
                           final st = await File(path).readAsString();
-                          final map = await jsonDecode(st);
+                          final map = jsonDecode(st);
                           final didUpdate = await Language.inst.loadLanguage(path.getFilenameWOExt, map);
                           if (didUpdate) {
                             NamidaNavigator.inst.closeDialog();

lib/ui/widgets/video_widget.dart

@@ -36,13 +36,15 @@ import 'package:namida/youtube/yt_utils.dart';
 
 class NamidaVideoControls extends StatefulWidget {
   final bool showControls;
+  final double? disableControlsUnderPercentage;
   final VoidCallback? onMinimizeTap;
   final bool isFullScreen;
   final bool isLocal;
 
   const NamidaVideoControls({
     super.key,
     required this.showControls,
+    this.disableControlsUnderPercentage,
     required this.onMinimizeTap,
     required this.isFullScreen,
     required this.isLocal,

lib/youtube/controller/youtube_controller.dart

@@ -322,11 +322,11 @@ class YoutubeController {
   static const String cleanupFilenameRegex = r'[*#\$|/\\!^:"]';
   String cleanupFilename(String filename) => filename.replaceAll(RegExp(cleanupFilenameRegex, caseSensitive: false), '_');
 
-  Future<void> loadDownloadTasksInfoFile() async {
-    await for (final f in Directory(AppDirs.YT_DOWNLOAD_TASKS).list()) {
+  void loadDownloadTasksInfoFileSync() {
+    for (final f in Directory(AppDirs.YT_DOWNLOAD_TASKS).listSync()) {
       if (f is File) {
         final groupName = DownloadTaskGroupName(groupName: f.path.getFilename.splitFirst('.'));
-        final res = await f.readAsJson() as Map<String, dynamic>?;
+        final res = f.readAsJsonSync() as Map<String, dynamic>?;
         if (res != null) {
           final fileModified = f.statSync().modified;
           youtubeDownloadTasksMap[groupName] ??= {};

lib/youtube/controller/youtube_playlist_controller.dart

@@ -180,11 +180,11 @@ class YoutubePlaylistController extends PlaylistManager<YoutubeID, String> {
   }
 
   @override
-  Future<YoutubePlaylist?> prepareFavouritePlaylistFunction() async {
-    return await _prepareFavouritesFile.thready(favouritePlaylistPath);
+  YoutubePlaylist? prepareFavouritePlaylistFunction() {
+    return _prepareFavouritesFile(favouritePlaylistPath);
   }
 
-  static Future<YoutubePlaylist?> _prepareFavouritesFile(String path) async {
+  static YoutubePlaylist? _prepareFavouritesFile(String path) {
     try {
       final response = File(path).readAsJsonSync();
       return YoutubePlaylist.fromJson(response, (itemJson) => YoutubeID.fromJson(itemJson));