setReaction method

void setReaction({ required String emoji, required String messageId, required String userId, })

Function for setting reaction on specific chat bubble

Implementation

void setReaction({
  required String emoji,
  required String messageId,
  required String userId,
}) {
  final message =
      initialMessageList.firstWhere((element) => element.id == messageId);
  final reactedUserIds = message.reaction.reactedUserIds;
  final indexOfMessage = initialMessageList.indexOf(message);
  final userIndex = reactedUserIds.indexOf(userId);
  if (userIndex != -1) {
    if (message.reaction.reactions[userIndex] == emoji) {
      message.reaction.reactions.removeAt(userIndex);
      message.reaction.reactedUserIds.removeAt(userIndex);
    } else {
      message.reaction.reactions[userIndex] = emoji;
    }
  } else {
    message.reaction.reactions.add(emoji);
    message.reaction.reactedUserIds.add(userId);
  }
  initialMessageList[indexOfMessage] = Message(
    id: messageId,
    message: message.message,
    createdAt: message.createdAt,
    sentBy: message.sentBy,
    replyMessage: message.replyMessage,
    reaction: message.reaction,
    messageType: message.messageType,
    status: message.status,
  );
  if (!messageStreamController.isClosed) {
    messageStreamController.sink.add(initialMessageList);
  }
}