140 lines
3.3 KiB
Dart
140 lines
3.3 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import '../database/app_database.dart';
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import '../models/remote_command.dart';
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import '../services/remote_sync_service.dart';
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class RemoteSyncViewModel extends ChangeNotifier {
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final RemoteSyncService syncService;
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RemoteSyncViewModel({required this.syncService}) {
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_eventSubscription = syncService.events.listen(_onEvent);
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}
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late final StreamSubscription<RemoteSyncEvent> _eventSubscription;
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bool _hasLoaded = false;
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bool get hasLoaded => _hasLoaded;
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bool _isSyncing = false;
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bool get isSyncing => _isSyncing;
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bool _isConfigured = false;
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bool get isConfigured => _isConfigured;
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bool _wasRevoked = false;
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/// The server rejected this device's token; it needs to be linked again.
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bool get wasRevoked => _wasRevoked;
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DateTime? _lastSyncAt;
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DateTime? get lastSyncAt => _lastSyncAt;
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String? _lastError;
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String? get lastError => _lastError;
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String? _venueId;
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String? get venueId => _venueId;
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List<ProcessedRemoteCommandRow> _activity = [];
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List<ProcessedRemoteCommandRow> get activity => _activity;
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Stream<RemoteSyncEvent> get tabsClosedRemotely => syncService.events.where(
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(event) => event.type == RemoteSyncEventType.tabClosedRemotely,
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);
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Future<void> init() async {
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await _refreshStatus();
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_lastSyncAt = await syncService.lastSuccessfulSyncAt;
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await _loadActivity();
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if (_isConfigured) syncService.startPeriodicSync();
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_hasLoaded = true;
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notifyListeners();
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}
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/// Called once registration stored new credentials.
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Future<void> activate() async {
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await _refreshStatus();
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if (_isConfigured) _wasRevoked = false;
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notifyListeners();
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if (!_isConfigured) return;
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syncService.startPeriodicSync();
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await syncNow();
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}
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Future<void> _refreshStatus() async {
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_isConfigured = await syncService.isConfigured;
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_venueId = await syncService.venueId;
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}
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Future<void> syncNow() async {
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_isSyncing = true;
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notifyListeners();
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await syncService.sync();
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_isSyncing = false;
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await _loadActivity();
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notifyListeners();
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}
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Future<void> _loadActivity() async {
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try {
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_activity = await syncService.getRecentActivity();
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} on Exception catch (e) {
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debugPrint('RemoteSyncViewModel: loadActivity error: $e');
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}
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}
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Future<void> unlink() async {
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syncService.stopPeriodicSync();
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await syncService.clearCredentials();
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_isConfigured = false;
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_wasRevoked = false;
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_venueId = null;
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_lastSyncAt = null;
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_lastError = null;
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_activity = [];
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notifyListeners();
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}
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void _onEvent(RemoteSyncEvent event) {
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switch (event.type) {
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case RemoteSyncEventType.syncCompleted:
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_lastSyncAt = DateTime.now();
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_lastError = null;
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case RemoteSyncEventType.syncFailed:
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_lastError = event.message;
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case RemoteSyncEventType.unauthorized:
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_isConfigured = false;
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_wasRevoked = true;
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case RemoteSyncEventType.tabClosedRemotely:
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case RemoteSyncEventType.conflict:
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break;
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}
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notifyListeners();
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}
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void pause() {
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syncService.pause();
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}
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void resume() {
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syncService.resume();
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unawaited(syncNow());
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}
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@override
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void dispose() {
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_eventSubscription.cancel();
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super.dispose();
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}
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}
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