getChatInfo static method

ChatContent getChatInfo(List<String> chat)

chat info contains messages per member, members of the chat, messages, and size of the chat

Implementation

static ChatContent getChatInfo(List<String> chat) {
  bool isAndroid = Platform.isAndroid;
  List<String> names = [];
  List<List<int>> countNameMsgs = [];
  List<MessageContent> msgContents = [];
  List<String> lines = [];
  bool first = true;

  for (int i = isAndroid ? 1 : 2; i < chat.length; i++) {
    if (_regExp.hasMatch(chat[i])) {
      lines.add(chat[i]);
      if (!first) {
        MessageContent msgContent = _getMsgContentFromStringLine(
            lines[lines.length - (isAndroid ? 1 : 2)]);
        if (!names.contains(msgContent.senderId) &&
            msgContent.senderId != null) {
          names.add(msgContent.senderId!);
          countNameMsgs.add([msgContents.length]);
          msgContents.add(msgContent);
        } else {
          if (msgContent.senderId != null) {
            countNameMsgs[names.indexOf(msgContent.senderId!)].add(
                msgContents.length);
            msgContents.add(msgContent);
          }
        }
      }
      first = false;
    } else {
      lines[lines.length - 1] += "\n" + chat[i];
    }
  }

  names.remove(null);
  Map<String, List<int>> indexesPerMember = {};
  Map<String, int> msgsPerPerson = {};

  names.remove(null);
  for (int i = 0; i < names.length; i++) {
    msgsPerPerson[names[i]] = countNameMsgs[i].length;
    indexesPerMember[names[i]] = countNameMsgs[i];
  }

  return ChatContent(
    members: names,
    messages: msgContents,
    sizeOfChat: msgContents.length,
    indexesPerMember: indexesPerMember,
    msgsPerMember: msgsPerPerson,
    chatName: '',
  );
}