124 lines
3.8 KiB
Dart
124 lines
3.8 KiB
Dart
import '../models/plex_metadata.dart';
|
|
import 'app_logger.dart';
|
|
import 'base_notifier.dart';
|
|
import 'hierarchical_event_mixin.dart';
|
|
|
|
/// Types of watch state changes
|
|
enum WatchStateChangeType { watched, unwatched, progressUpdate }
|
|
|
|
/// Event representing a watch state change with parent chain for hierarchical invalidation
|
|
class WatchStateEvent with HierarchicalEventMixin {
|
|
/// The item that changed
|
|
@override
|
|
final String ratingKey;
|
|
|
|
/// Composite key: serverId:ratingKey
|
|
@override
|
|
final String globalKey;
|
|
|
|
/// Server this item belongs to
|
|
@override
|
|
final String serverId;
|
|
|
|
/// Type of change
|
|
final WatchStateChangeType changeType;
|
|
|
|
/// Parent chain for hierarchical invalidation
|
|
/// For an episode: [seasonRatingKey, showRatingKey]
|
|
/// For a season: [showRatingKey]
|
|
/// For a movie: []
|
|
@override
|
|
final List<String> parentChain;
|
|
|
|
/// Media type that changed
|
|
final String mediaType;
|
|
|
|
/// New progress value (for progressUpdate)
|
|
final int? viewOffset;
|
|
|
|
/// Whether item is now considered watched (>90% progress or marked)
|
|
final bool? isNowWatched;
|
|
|
|
WatchStateEvent({
|
|
required this.ratingKey,
|
|
required this.serverId,
|
|
required this.changeType,
|
|
required this.parentChain,
|
|
required this.mediaType,
|
|
this.viewOffset,
|
|
this.isNowWatched,
|
|
}) : globalKey = '$serverId:$ratingKey';
|
|
|
|
@override
|
|
String toString() => 'WatchStateEvent($changeType, $globalKey, parents: $parentChain)';
|
|
}
|
|
|
|
/// Notifier for watch state changes across the app.
|
|
///
|
|
/// Singleton pattern following [LibraryRefreshNotifier]. Screens subscribe
|
|
/// to receive events when items are marked watched/unwatched or progress updates.
|
|
class WatchStateNotifier extends BaseNotifier<WatchStateEvent> {
|
|
static final WatchStateNotifier _instance = WatchStateNotifier._internal();
|
|
|
|
factory WatchStateNotifier() => _instance;
|
|
|
|
WatchStateNotifier._internal();
|
|
|
|
/// Filter for events affecting a specific server
|
|
Stream<WatchStateEvent> forServer(String serverId) => stream.where((e) => e.serverId == serverId);
|
|
|
|
/// Filter for events affecting a specific item or its children
|
|
Stream<WatchStateEvent> forItem(String ratingKey) => stream.where((e) => e.affectsItem(ratingKey));
|
|
|
|
/// Emit a watch state event with logging
|
|
@override
|
|
void notify(WatchStateEvent event) {
|
|
appLogger.d('WatchStateNotifier: $event');
|
|
super.notify(event);
|
|
}
|
|
|
|
/// Helper to emit a watched/unwatched event from metadata
|
|
void notifyWatched({required PlexMetadata metadata, bool isNowWatched = true}) {
|
|
notify(
|
|
WatchStateEvent(
|
|
ratingKey: metadata.ratingKey,
|
|
serverId: metadata.serverId ?? '',
|
|
changeType: isNowWatched ? WatchStateChangeType.watched : WatchStateChangeType.unwatched,
|
|
parentChain: _buildParentChain(metadata),
|
|
mediaType: metadata.type,
|
|
isNowWatched: isNowWatched,
|
|
),
|
|
);
|
|
}
|
|
|
|
/// Helper to emit a progress update event
|
|
void notifyProgress({required PlexMetadata metadata, required int viewOffset, required int duration}) {
|
|
const threshold = 0.9;
|
|
final isNowWatched = duration > 0 && (viewOffset / duration) >= threshold;
|
|
|
|
notify(
|
|
WatchStateEvent(
|
|
ratingKey: metadata.ratingKey,
|
|
serverId: metadata.serverId ?? '',
|
|
changeType: WatchStateChangeType.progressUpdate,
|
|
parentChain: _buildParentChain(metadata),
|
|
mediaType: metadata.type,
|
|
viewOffset: viewOffset,
|
|
isNowWatched: isNowWatched,
|
|
),
|
|
);
|
|
}
|
|
|
|
/// Build parent chain from metadata's parent keys
|
|
List<String> _buildParentChain(PlexMetadata metadata) {
|
|
final chain = <String>[];
|
|
if (metadata.parentRatingKey != null) {
|
|
chain.add(metadata.parentRatingKey!);
|
|
}
|
|
if (metadata.grandparentRatingKey != null) {
|
|
chain.add(metadata.grandparentRatingKey!);
|
|
}
|
|
return chain;
|
|
}
|
|
}
|