sendAgain method

Future<String?> sendAgain({ String? txid, })

Try to send this event again. Only works with events of status -1.

Implementation

Future<String?> sendAgain({String? txid}) async {
  if (!status.isError) return null;

  // Retry sending a file:
  if ({
    MessageTypes.Image,
    MessageTypes.Video,
    MessageTypes.Audio,
    MessageTypes.File,
  }.contains(messageType)) {
    final file = room.sendingFilePlaceholders[eventId];
    if (file == null) {
      await cancelSend();
      throw Exception('Can not try to send again. File is no longer cached.');
    }
    final thumbnail = room.sendingFileThumbnails[eventId];
    final credentials = FileSendRequestCredentials.fromJson(unsigned ?? {});
    final inReplyTo = credentials.inReplyTo == null
        ? null
        : await room.getEventById(credentials.inReplyTo!);
    txid ??= unsigned?.tryGet<String>('transaction_id');
    return await room.sendFileEvent(
      file,
      txid: txid,
      thumbnail: thumbnail,
      inReplyTo: inReplyTo,
      editEventId: credentials.editEventId,
      shrinkImageMaxDimension: credentials.shrinkImageMaxDimension,
      extraContent: credentials.extraContent,
    );
  }

  // we do not remove the event here. It will automatically be updated
  // in the `sendEvent` method to transition -1 -> 0 -> 1 -> 2
  return await room.sendEvent(
    content,
    txid: txid ?? unsigned?.tryGet<String>('transaction_id') ?? eventId,
  );
}