import '../../features/auth/presentation/bloc/auth_state.dart';
import '../../features/calendar/data/services/calendar_service.dart';
import '../../features/notification/data/services/local_notification_service.dart';

class AuthSessionBootstrapper {
  AuthSessionBootstrapper({
    required CalendarService calendarService,
    required LocalNotificationService notificationService,
  }) : _calendarService = calendarService,
       _notificationService = notificationService;

  final CalendarService _calendarService;
  final LocalNotificationService _notificationService;

  String? _syncedUserId;

  Future<void> syncForAuthState(AuthState state) async {
    if (state is! AuthAuthenticated) {
      _syncedUserId = null;
      return;
    }

    if (_syncedUserId == state.user.id) {
      return;
    }

    try {
      final now = DateTime.now();
      final start = now.subtract(const Duration(days: 90));
      final end = now.add(const Duration(days: 90));
      final events = await _calendarService.getEventsForRange(start, end);
      await _notificationService.rebuildUpcomingReminders(events);
      _syncedUserId = state.user.id;
    } catch (_) {
      // ignore reminder bootstrap failures
    }
  }
}