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plezy/lib/services/live_session_tracker.dart
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2026-05-01 01:20:36 +02:00

39 lines
1.6 KiB
Dart

import '../utils/app_logger.dart';
import '../utils/session_identifier.dart';
import 'jellyfin_client.dart';
import 'playback_report_session.dart';
/// Lightweight state machine for Jellyfin live TV playback heartbeats.
///
/// Delegates start/progress/stop ordering to [PlaybackReportSession] so live
/// heartbeats follow the same terminal-state rules as normal playback. The
/// Plex live path keeps its bespoke capture-buffer flow inline at the call
/// site; this tracker only covers Jellyfin's `/Sessions/Playing*` flow.
class JellyfinLiveSessionTracker {
JellyfinLiveSessionTracker({String? playSessionId}) : _playSessionId = playSessionId ?? generateSessionIdentifier();
final String _playSessionId;
PlaybackReportSession? _session;
/// Session id reused across all heartbeats for this playback. Exposed
/// for callers that need to thread it elsewhere (e.g. analytics logs).
String get playSessionId => _playSessionId;
/// Send the appropriate heartbeat for [state] (`'playing'`, `'paused'`,
/// or `'stopped'`). Errors are swallowed — heartbeats are best-effort.
Future<void> report({
required JellyfinClient client,
required String itemId,
required String state,
required Duration position,
required Duration duration,
}) async {
try {
final session = _session ??= PlaybackReportSession(client: client, itemId: itemId, playSessionId: _playSessionId);
await session.report(PlaybackReportSnapshot(state: state, position: position, duration: duration));
} catch (e) {
appLogger.d('Jellyfin live progress report failed', error: e);
}
}
}