refactor: remove dead code

lib/models/plex_video_playback_data.dart

@@ -28,7 +28,4 @@ class PlexVideoPlaybackData {
 
   /// Returns true if media info is available
   bool get hasMediaInfo => mediaInfo != null;
-
-  /// Returns true if there are multiple media versions available
-  bool get hasMultipleVersions => availableVersions.length > 1;
 }

lib/providers/playback_state_provider.dart

@@ -3,13 +3,6 @@ import '../models/plex_metadata.dart';
 import '../models/play_queue_response.dart';
 import '../services/plex_client.dart';
 
-/// Playback mode types
-///
-/// All playback now uses Plex play queues.
-enum PlaybackMode {
-  playQueue, // Play queue-based playback (sequential, shuffle, playlists, collections)
-}
-
 /// Result of trying to locate the current queue index.
 class _IndexLookupResult {
   final int? index;
@@ -32,24 +25,20 @@ class PlaybackStateProvider with ChangeNotifier {
   List<PlexMetadata> _loadedItems = [];
   final int _windowSize = 50; // Number of items to keep in memory
 
-  // Legacy state for backward compatibility
   String? _contextKey; // The show/season/playlist ratingKey for this session
-  PlaybackMode? _playbackMode;
+  bool _isQueueMode = false;
 
   // Client reference for loading more items
   PlexClient? _client;
 
-  /// Current playback mode (null if no queue active)
-  PlaybackMode? get playbackMode => _playbackMode;
-
   /// Whether shuffle mode is currently active
   bool get isShuffleActive => _playQueueShuffled;
 
   /// Whether playlist/collection mode is currently active
-  bool get isPlaylistActive => _playbackMode == PlaybackMode.playQueue;
+  bool get isPlaylistActive => _isQueueMode;
 
   /// Whether any queue-based playback is active
-  bool get isQueueActive => _playQueueId != null && _playbackMode == PlaybackMode.playQueue;
+  bool get isQueueActive => _playQueueId != null && _isQueueMode;
 
   /// The context key (show/season/playlist ratingKey) for the current session
   String? get shuffleContextKey => _contextKey;
@@ -63,9 +52,6 @@ class PlaybackStateProvider with ChangeNotifier {
   /// The current play queue item ID
   int? get currentPlayQueueItemID => _currentPlayQueueItemID;
 
-  /// Total number of items in the play queue
-  int get queueLength => _playQueueTotalCount;
-
   /// Set the client reference for loading more items
   void setClient(PlexClient client) {
     _client = client;
@@ -73,7 +59,7 @@ class PlaybackStateProvider with ChangeNotifier {
 
   /// Update the current play queue item when playing a new item
   void setCurrentItem(PlexMetadata metadata) {
-    if (_playbackMode == PlaybackMode.playQueue && metadata.playQueueItemID != null) {
+    if (_isQueueMode && metadata.playQueueItemID != null) {
       _currentPlayQueueItemID = metadata.playQueueItemID;
       notifyListeners();
     }
@@ -92,7 +78,7 @@ class PlaybackStateProvider with ChangeNotifier {
     _loadedItems = playQueue.items ?? [];
 
     _contextKey = contextKey;
-    _playbackMode = PlaybackMode.playQueue;
+    _isQueueMode = true;
     notifyListeners();
   }
 
@@ -132,7 +118,7 @@ class PlaybackStateProvider with ChangeNotifier {
   }
 
   Future<_IndexLookupResult> _getCurrentIndex({bool loadIfMissing = false}) async {
-    if (_playbackMode != PlaybackMode.playQueue || _loadedItems.isEmpty || _currentPlayQueueItemID == null) {
+    if (!_isQueueMode || _loadedItems.isEmpty || _currentPlayQueueItemID == null) {
       return const _IndexLookupResult();
     }
 
@@ -164,7 +150,7 @@ class PlaybackStateProvider with ChangeNotifier {
   /// Returns null if queue is exhausted or current item is not in queue.
   /// [loopQueue] - If true, restart from beginning when queue is exhausted
   Future<PlexMetadata?> getNextEpisode(String currentItemKey, {bool loopQueue = false}) async {
-    if (_playbackMode != PlaybackMode.playQueue) {
+    if (!_isQueueMode) {
       // For sequential mode, let the video player handle next episode
       return null;
     }
@@ -221,7 +207,7 @@ class PlaybackStateProvider with ChangeNotifier {
   /// Gets the previous item in the playback queue.
   /// Returns null if at the beginning of the queue or current item is not in queue.
   Future<PlexMetadata?> getPreviousEpisode(String currentItemKey) async {
-    if (_playbackMode != PlaybackMode.playQueue) {
+    if (!_isQueueMode) {
       // For sequential mode, let the video player handle previous episode
       return null;
     }
@@ -262,7 +248,7 @@ class PlaybackStateProvider with ChangeNotifier {
     _currentPlayQueueItemID = null;
     _loadedItems = [];
     _contextKey = null;
-    _playbackMode = null;
+    _isQueueMode = false;
     notifyListeners();
   }
 }

lib/services/plex_client.dart

@@ -315,15 +315,6 @@ class PlexClient {
     }
   }
 
-  /// Update the token used by this client
-  void updateToken(String newToken) {
-    // Update both the Dio headers and the config to ensure consistency
-    _dio.options.headers['X-Plex-Token'] = newToken;
-    config = config.copyWith(token: newToken);
-    LogRedactionManager.registerToken(newToken);
-    appLogger.d('PlexClient token updated (headers and config)');
-  }
-
   /// Update endpoint priority list and optionally hop to the new best endpoint.
   Future<void> updateEndpointPreferences(List<String> prioritizedEndpoints, {bool switchToFirst = false}) async {
     if (_endpointManager == null || prioritizedEndpoints.isEmpty) {
@@ -1058,36 +1049,6 @@ class PlexClient {
         [];
   }
 
-  /// Get all unwatched episodes for a TV show across all seasons
-  Future<List<PlexMetadata>> getAllUnwatchedEpisodes(String showRatingKey) async {
-    final allEpisodes = <PlexMetadata>[];
-
-    // Get all seasons for the show
-    final seasons = await getChildren(showRatingKey);
-
-    // Get episodes from each season
-    for (final season in seasons) {
-      if (season.isSeason) {
-        final episodes = await getChildren(season.ratingKey);
-
-        // Filter for unwatched episodes
-        final unwatchedEpisodes = episodes.where((ep) => ep.isEpisode && (ep.viewCount ?? 0) == 0).toList();
-
-        allEpisodes.addAll(unwatchedEpisodes);
-      }
-    }
-
-    return allEpisodes;
-  }
-
-  /// Get all unwatched episodes in a specific season
-  Future<List<PlexMetadata>> getUnwatchedEpisodesInSeason(String seasonRatingKey) async {
-    final episodes = await getChildren(seasonRatingKey);
-
-    // Filter for unwatched episodes
-    return episodes.where((ep) => ep.isEpisode && (ep.viewCount ?? 0) == 0).toList();
-  }
-
   /// Get thumbnail URL
   String getThumbnailUrl(String? thumbPath) {
     if (thumbPath == null || thumbPath.isEmpty) return '';
@@ -1384,12 +1345,6 @@ class PlexClient {
     return _wrapBoolApiCall(() => _dio.delete('/library/metadata/$ratingKey'), 'Failed to delete media item');
   }
 
-  /// Get server preferences
-  Future<Map<String, dynamic>> getServerPreferences() async {
-    final response = await _dio.get('/:/prefs');
-    return response.data;
-  }
-
   /// Get preferences for a library section.
   ///
   /// Returns a map of setting id --> value for all settings in the library.
@@ -1403,16 +1358,6 @@ class PlexClient {
     return {for (final s in list) s['id'] as String: s['value']};
   }
 
-  /// Get sessions (currently playing)
-  Future<List<dynamic>> getSessions() async {
-    final response = await _dio.get('/status/sessions');
-    final container = _getMediaContainer(response);
-    if (container != null && container['Metadata'] != null) {
-      return container['Metadata'] as List;
-    }
-    return [];
-  }
-
   /// Get available filters for a library section
   Future<List<PlexFilter>> getLibraryFilters(String sectionId) async {
     if (sectionId == 'shared') return [];

lib/services/settings_service.dart

@@ -761,15 +761,6 @@ class SettingsService extends BaseSharedPreferencesService {
     return preferences[seriesRatingKey];
   }
 
-  /// Clear media version preference for a series
-  Future<void> clearMediaVersionPreference(String seriesRatingKey) async {
-    final preferences = _getMediaVersionPreferences();
-    preferences.remove(seriesRatingKey);
-
-    final jsonString = json.encode(preferences);
-    await prefs.setString(_keyMediaVersionPreferences, jsonString);
-  }
-
   /// Get all media version preferences
   Map<String, int> _getMediaVersionPreferences() {
     final jsonString = prefs.getString(_keyMediaVersionPreferences);

lib/widgets/download_tree_view.dart

@@ -38,10 +38,6 @@ class DownloadTreeNode {
     return children.where((child) => child.status == DownloadStatus.completed).length;
   }
 
-  /// Get the number of downloading children
-  int get downloadingChildrenCount {
-    return children.where((child) => child.status == DownloadStatus.downloading).length;
-  }
 }
 
 /// Type of node in the download tree