OpenPeerChat-flutter/lib/p2p/MatrixServerModel.dart

import 'package:flutter/foundation.dart';
// ignore: import_of_legacy_library_into_null_safe
import 'package:p2p_client_dart/p2p_client_dart.dart';

class Contact {
  String displayName;
  String? roomId;
  String? userId;

  Contact(this.displayName);

  @override
  String toString() {
    return displayName;
  }

  Contact.fromJson(Map<String, String> json)
      : displayName = json['displayName']!,
        roomId = json['roomId'],
        userId = json['userId'];
}

class MatrixServer extends ChangeNotifier {
  Server _server = Server();
  Server get server => _server;

  @override
  String toString() {
    return 'Matrix Server - ${server.toString()}';
  }

  set server(Server newServer) {
    this._server = newServer;
    notifyListeners();
  }

  Future<void> setServerConfig(
      String url, String name, String? username, String? password) async {
    this._server = server = Server.init(url, name);
    if (username != null && password != null) {
      await this._server.login(username, password);
      print(this._server.isAuthenticated);
    }
  }

  Future<List<Contact>> getContactsList() async {
    var roomData = await server.getJoinedRooms();
    List<Contact> contacts = roomData.map((e) {
      Map<String, String> contact = {};
      e.retainWhere((e) => e.senderId != server.userId);

      if (e.length == 0) return Contact("None");
      contact["roomId"] = e[0].roomId;
      contact["userId"] = e[0].senderId;
      contact["displayName"] = e[0].content['displayname'];
      return Contact.fromJson(contact);
    }).toList();
    contacts.retainWhere((element) => element.displayName != "None");
    return contacts;
  }
}