updateAttachments method

  1. @override
Future<void> updateAttachments(
  1. ChatItem item
)
override

Updates the Attachments of the specified item to be up-to-date.

Intended to be used to update the StorageFile.relativeRef links.

Implementation

@override
Future<void> updateAttachments(ChatItem item) async {
  Log.debug('updateAttachments($item)', '$runtimeType($id)');

  if (item.id.isLocal) {
    return;
  }

  Mutex? mutex = _attachmentGuards[item.id];
  if (mutex == null) {
    mutex = Mutex();
    _attachmentGuards[item.id] = mutex;
  }

  final bool isLocked = mutex.isLocked;
  await mutex.protect(() async {
    if (isLocked) {
      // Mutex has been already locked when tried to obtain it, thus the
      // [Attachment]s of the [item] were already updated, so no action is
      // required.
      return;
    }

    await _updateAttachments(item);
    _attachmentGuards.remove(item.id);
  });
}