sendUserMessage method

Implementation

UserMessage sendUserMessage(
  UserMessageCreateParams params, {
  UserMessageHandler? handler,
}) {
  sbLog.i(StackTrace.current, 'message: ${params.message}');
  checkUnsupportedAction();

  if (params.message.isEmpty) {
    throw InvalidParameterException();
  }

  final cmd = Command.buildUserMessage(
    channelUrl,
    params,
    const Uuid().v1(),
  );

  final pendingUserMessage =
      BaseMessage.getMessageFromJsonWithChat<UserMessage>(
    chat,
    cmd.payload,
    channelType: channelType,
    commandType: cmd.cmd,
  );

  if (chat.chatContext.currentUser == null) {
    final error = ConnectionRequiredException();
    pendingUserMessage
      ..errorCode = error.code
      ..sendingStatus = SendingStatus.failed;
    if (handler != null) handler(pendingUserMessage, error);
    return pendingUserMessage;
  }

  pendingUserMessage.sendingStatus = SendingStatus.pending;
  pendingUserMessage.sender =
      Sender.fromUser(chat.chatContext.currentUser, this);

  chat.commandManager.sendCommand(cmd).then((result) {
    if (result == null) return;
    final message = BaseMessage.getMessageFromJsonWithChat<UserMessage>(
      chat,
      result.payload,
      commandType: result.cmd,
    );

    chat.collectionManager.onMessageSentByMe(message);
    if (handler != null) handler(message, null);
  }).catchError((e) {
    sbLog.e(StackTrace.current, 'e: $e');

    pendingUserMessage
      ..errorCode = e?.code ?? SendbirdError.unknownError
      ..sendingStatus = SendingStatus.failed;
    if (handler != null) handler(pendingUserMessage, e);
  });

  return pendingUserMessage;
}