removeSavedDestination method

Implementation

Future<void> removeSavedDestination(String uid, String destinationName) async {
  try {
    // First get current saved destinations
    final user = await getUser(uid);
    if (user == null) return;

    final savedDestinations = user.savedDestinations;

    // Find and remove the destination with matching name
    final destinationToRemove = savedDestinations.firstWhere(
      (destination) => destination['name'] == destinationName,
      orElse: () => {},
    );

    if (destinationToRemove.isNotEmpty) {
      if (!_isOnline) {
        // Update cache and track change
        _updateCacheForArrayOperation(uid, 'savedDestinations', destinationToRemove, isAddition: false);
        _trackPendingChanges(uid, {'savedDestinations': FieldValue.arrayRemove([destinationToRemove])});
        return;
      }

      // Online path
      await _firestore.collection(_collectionPath).doc(uid).update({
        'savedDestinations': FieldValue.arrayRemove([destinationToRemove]),
      });

      // Update cache
      _updateCacheForArrayOperation(uid, 'savedDestinations', destinationToRemove, isAddition: false);
    }
  } catch (e) {
    print('Error removing saved destination: $e');

    if (e is FirebaseException && e.code == 'unavailable') {
      // We're offline, update cache and track for later
      // Note: We would have to load the user earlier to get the destination
      rethrow;
    } else {
      rethrow;
    }
  }
}