E2EEChat/lib/presenter/contact_list.dart

import 'package:e2ee_chat/azlistview/azlistview.dart';
import 'package:e2ee_chat/common/global.dart';
import 'package:e2ee_chat/model/contact_info.dart';
import 'package:e2ee_chat/model/user.dart';
import 'package:e2ee_chat/presenter/contact.dart';
import 'package:e2ee_chat/presenter/profile.dart';
import 'package:e2ee_chat/presenter/login.dart';
import 'package:flutter/material.dart';
import 'package:lpinyin/lpinyin.dart';
import 'package:e2ee_chat/common/api.dart';

import 'login.dart';

class ContactListPresenter extends ChangeNotifier {
  List<ContactInfo> get contacts {
    final User? user = LoginPresenter().user;
    final list = <ContactInfo>[];
    try {
      for (var i in user!.friends) {
        list.add(
            ContactInfo(name: i.username, tag: ContactInfo.getTag(i.username)));
      }
    } catch (e) {
      debug(e);
    }
    SuspensionUtil.sortListBySuspensionTag(list);
    SuspensionUtil.setShowSuspensionStatus(list);
    list.add(ContactInfo(
        name: 'New friends',
        tag: '↑',
        bgColor: Colors.orange,
        iconData: Icons.person_add));
    return list;
  }

  Future<bool> freshContacts() async {
    debug('contact list presenter fresh contacts begin');
    bool _result = false;
    var _user = LoginPresenter().user;
    if (_user != null) {
      try {
        var list = (await Api().friendList())!;
        debug('contact list presenter fresh contacts friends: $list');
        _user.friends.clear();
        list.forEach((username) {
          var contact = User(username);
          contact.refreshProfile();
          _user.friends.add(contact);
        });
        notifyListeners();
        _result = true;
      } catch (e) {
        debug('contact list presenter fresh contacts failed: error $e');
      }
    }
    debug('contact list presenter fresh contacts end');
    return _result;
  }

  Future<void> deleteFriend(String username) async {
    bool _result = await Api().deleteFriend(username);
    if (_result) {
      notifyListeners();
    }
  }
}