E2EEChat/lib/presenter/session.dart

import 'package:e2ee_chat/common/global.dart';
import 'package:e2ee_chat/model/message.dart';
import 'package:e2ee_chat/model/user.dart';
import 'package:flutter/cupertino.dart';

import 'login.dart';

enum DTMessageType {
  text,
  image
}

class SessionListModel extends ChangeNotifier {

  List<SessionModel> get sessions {
    var user = LoginModel().user;
    var list = <SessionModel>[];
    if (user != null) {
      var friends = user.friends;
      for (var i in friends) {
        list.add(SessionModel(i));
      }
    }
    return list;
  }

  int get count => sessions.length;
}

class SessionModel extends SessionListModel {

  // TODO: 仅支持单聊

  SessionModel(this._user);

  final User _user;

  /// 消息体
  Message get lastMessage => _user.messages.last;

  /// 未读数量
  int get unReadCount {
    // TODO: 未读消息数量
    return 0;
  }

  get chatName => _user.username;


  /// 单聊
  get isSingle => true;

  /// 群聊信息
  get isGroup => false;

  /// 消息免打扰
  get isDND => _user.isDND;

  /// 是否为置顶
  get isStick => _user.isStick;

  /// 特别关注
  get isSpecialAttention => _user.isSpecialAttention;

  // TODO: 是否 @ 你
  get isAtYou => false;

  // TODO: 是否 @ 全部
  get isAtAll => false;

  // TODO: user avatar
  get avatar => Global.defaultAvatar;
}