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plezy/lib/providers/trakt_account_provider.dart
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Dart

import 'dart:async';
import 'package:flutter/foundation.dart';
import '../mixins/disposable_change_notifier_mixin.dart';
import '../models/trackers/device_code.dart';
import '../services/trackers/tracker_connect_runner.dart';
import '../services/trakt/trakt_account_store.dart';
import '../services/trakt/trakt_auth_service.dart';
import '../services/trakt/trakt_client.dart';
import '../services/trakt/trakt_scrobble_service.dart';
import '../services/trakt/trakt_session.dart';
import '../services/trakt/trakt_sync_service.dart';
import '../utils/app_logger.dart';
/// Owns the active Trakt session for the currently-selected Plex profile.
///
/// Single rebind seam: `onActiveProfileChanged` loads the new profile's
/// session and pushes it to both `TraktScrobbleService` and `TraktSyncService`.
class TraktAccountProvider extends ChangeNotifier with DisposableChangeNotifierMixin {
final TraktAuthService _auth = TraktAuthService();
final _store = traktAccountStore;
TraktSession? _session;
String _activeUserUuid = '';
bool _isConnecting = false;
Completer<void>? _cancelCompleter;
TraktSession? get session => _session;
bool get isConnected => _session != null;
String? get username => _session?.username;
bool get isConnecting => _isConnecting;
/// Cancel an in-flight `connect()` (e.g. user dismissed the device-code
/// dialog). Completing the completer both wakes the blocking `Future.any`
/// race and flips `isCompleted` for the next sync check.
void cancelConnect() {
final c = _cancelCompleter;
if (c != null && !c.isCompleted) c.complete();
}
/// Called whenever the active Plex profile changes (or on initial load).
Future<void> onActiveProfileChanged(String? newUserUuid) async {
_activeUserUuid = newUserUuid ?? '';
final loaded = await _store.load(_activeUserUuid);
_setSessionAndRebind(loaded);
}
/// Run the device-code OAuth flow.
///
/// [onCodeReady] is invoked once with the user code + verification URL so
/// the UI can render the dialog.
Future<bool> connect({required void Function(DeviceCode code) onCodeReady}) async {
if (_isConnecting || isConnected) return false;
_isConnecting = true;
_cancelCompleter = Completer<void>();
notifyListeners();
try {
return await runConnectPipeline<TraktSession>(
logLabel: 'Trakt',
authorize: () => _auth.authorize(
onCodeReady: onCodeReady,
shouldCancel: () => _cancelCompleter?.isCompleted ?? false,
onCancel: _cancelCompleter!.future,
),
enrich: _enrichUsername,
save: (s) => _store.save(_activeUserUuid, s),
assign: _setSessionAndRebind,
);
} finally {
final c = _cancelCompleter;
if (c != null && !c.isCompleted) c.complete();
_cancelCompleter = null;
_isConnecting = false;
safeNotifyListeners();
}
}
Future<TraktSession> _enrichUsername(TraktSession raw) async {
try {
final tmp = TraktClient(raw, onSessionInvalidated: () {});
final user = await tmp.getUserSettings();
tmp.dispose();
return raw.copyWith(username: user.username);
} catch (e) {
appLogger.d('Trakt: getUserSettings failed (non-fatal)', error: e);
return raw;
}
}
/// Revoke the access token and clear local state.
Future<void> disconnect() async {
final session = _session;
if (session != null) {
final client = TraktClient(session, onSessionInvalidated: () {});
await client.revoke();
client.dispose();
}
await _store.clear(_activeUserUuid);
_setSessionAndRebind(null);
}
void _setSessionAndRebind(TraktSession? session) {
_session = session;
TraktScrobbleService.instance.rebindToProfile(session, onSessionInvalidated: _handleSessionInvalidated);
TraktSyncService.instance.rebindToProfile(
_activeUserUuid,
session,
onSessionInvalidated: _handleSessionInvalidated,
);
safeNotifyListeners();
}
/// Called by [TraktClient] when refresh fails permanently. Clears local state
/// so the UI shows "not connected" and the user can re-link.
void _handleSessionInvalidated() {
_store.clear(_activeUserUuid);
_setSessionAndRebind(null);
}
@override
void dispose() {
_auth.dispose();
super.dispose();
}
}