347 lines
11 KiB
Dart
347 lines
11 KiB
Dart
import 'dart:async';
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import 'package:recon/apis/contact_api.dart';
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import 'package:recon/apis/message_api.dart';
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import 'package:recon/apis/session_api.dart';
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import 'package:recon/apis/user_api.dart';
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import 'package:recon/clients/api_client.dart';
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import 'package:recon/clients/notification_client.dart';
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import 'package:recon/crypto_helper.dart';
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import 'package:recon/hub_manager.dart';
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import 'package:recon/models/hub_events.dart';
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import 'package:recon/models/message.dart';
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import 'package:recon/models/session.dart';
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import 'package:recon/models/users/friend.dart';
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import 'package:recon/models/users/online_status.dart';
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import 'package:recon/models/users/user_status.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/widgets.dart';
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import 'package:hive_flutter/hive_flutter.dart';
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import 'package:logging/logging.dart';
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import 'package:package_info_plus/package_info_plus.dart';
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class MessagingClient extends ChangeNotifier {
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static const Duration _autoRefreshDuration = Duration(seconds: 10);
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static const Duration _unreadSafeguardDuration = Duration(seconds: 120);
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static const String _messageBoxKey = "message-box";
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static const String _lastUpdateKey = "__last-update-time";
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final ApiClient _apiClient;
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final List<Friend> _sortedFriendsCache = []; // Keep a sorted copy so as to not have to sort during build()
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final Map<String, MessageCache> _messageCache = {};
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final Map<String, List<Message>> _unreads = {};
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final Logger _logger = Logger("Messaging");
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final NotificationClient _notificationClient;
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final HubManager _hubManager = HubManager();
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final Map<String, Session> _sessionMap = {};
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final Set<String> _knownSessionKeys = {};
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Friend? selectedFriend;
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Timer? _notifyOnlineTimer;
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Timer? _autoRefresh;
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Timer? _unreadSafeguard;
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String? _initStatus;
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UserStatus _userStatus = UserStatus.initial();
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UserStatus get userStatus => _userStatus;
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MessagingClient({required ApiClient apiClient, required NotificationClient notificationClient})
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: _apiClient = apiClient,
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_notificationClient = notificationClient {
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debugPrint("mClient created: $hashCode");
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Hive.openBox(_messageBoxKey).then((box) async {
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await box.delete(_lastUpdateKey);
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final sessions = await SessionApi.getSessions(_apiClient);
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_sessionMap.addEntries(sessions.map((e) => MapEntry(e.id, e)));
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_setupHub();
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});
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}
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@override
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void dispose() {
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debugPrint("mClient disposed: $hashCode");
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_autoRefresh?.cancel();
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_notifyOnlineTimer?.cancel();
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_unreadSafeguard?.cancel();
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_hubManager.dispose();
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super.dispose();
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}
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String? get initStatus => _initStatus;
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List<Friend> get cachedFriends => _sortedFriendsCache;
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List<Message> getUnreadsForFriend(Friend friend) => _unreads[friend.id] ?? [];
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bool friendHasUnreads(Friend friend) => _unreads.containsKey(friend.id);
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bool messageIsUnread(Message message) =>
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_unreads[message.senderId]?.any((element) => element.id == message.id) ?? false;
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Friend? getAsFriend(String userId) => Friend.fromMapOrNull(Hive.box(_messageBoxKey).get(userId));
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MessageCache? getUserMessageCache(String userId) => _messageCache[userId];
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MessageCache _createUserMessageCache(String userId) => MessageCache(apiClient: _apiClient, userId: userId);
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Future<void> refreshFriendsListWithErrorHandler() async {
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try {
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await refreshFriendsList();
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} catch (e) {
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_initStatus = "$e";
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notifyListeners();
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}
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}
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Future<void> refreshFriendsList() async {
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DateTime? lastUpdateUtc = Hive.box(_messageBoxKey).get(_lastUpdateKey);
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_autoRefresh?.cancel();
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_autoRefresh = Timer(_autoRefreshDuration, () => refreshFriendsList());
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final friends = await ContactApi.getFriendsList(_apiClient, lastStatusUpdate: lastUpdateUtc);
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for (final friend in friends) {
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await _updateContact(friend);
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}
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_initStatus = "";
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notifyListeners();
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}
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void sendMessage(Message message) {
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final msgBody = message.toMap();
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_hubManager.send("SendMessage", arguments: [msgBody]);
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final cache = getUserMessageCache(message.recipientId) ?? _createUserMessageCache(message.recipientId);
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cache.addMessage(message);
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notifyListeners();
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}
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void markMessagesRead(MarkReadBatch batch) {
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final msgBody = batch.toMap();
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_hubManager.send("MarkMessagesRead", arguments: [msgBody]);
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clearUnreadsForUser(batch.senderId);
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}
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Future<void> setOnlineStatus(OnlineStatus status) async {
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final pkginfo = await PackageInfo.fromPlatform();
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_userStatus = _userStatus.copyWith(
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appVersion: "${pkginfo.version} of ${pkginfo.appName}",
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lastStatusChange: DateTime.now(),
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onlineStatus: status,
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);
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_hubManager.send(
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"BroadcastStatus",
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arguments: [
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_userStatus.toMap(),
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{
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"group": 1,
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"targetIds": null,
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}
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],
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);
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final self = getAsFriend(_apiClient.userId);
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if (self != null) {
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await _updateContact(self.copyWith(userStatus: _userStatus));
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}
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notifyListeners();
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}
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void addUnread(Message message) {
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var messages = _unreads[message.senderId];
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if (messages == null) {
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messages = [message];
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_unreads[message.senderId] = messages;
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} else {
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messages.add(message);
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}
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messages.sort();
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_sortFriendsCache();
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_notificationClient.showUnreadMessagesNotification(messages.reversed);
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notifyListeners();
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}
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void updateAllUnreads(List<Message> messages) {
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_unreads.clear();
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for (final msg in messages) {
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if (msg.senderId != _apiClient.userId) {
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final value = _unreads[msg.senderId];
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if (value == null) {
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_unreads[msg.senderId] = [msg];
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} else {
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value.add(msg);
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}
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}
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}
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}
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void clearUnreadsForUser(String userId) {
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_unreads[userId]?.clear();
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notifyListeners();
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}
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void deleteUserMessageCache(String userId) {
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_messageCache.remove(userId);
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}
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Future<void> loadUserMessageCache(String userId) async {
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final cache = getUserMessageCache(userId) ?? _createUserMessageCache(userId);
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await cache.loadMessages();
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_messageCache[userId] = cache;
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notifyListeners();
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}
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Future<void> updateFriendStatus(String userId) async {
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final friend = getAsFriend(userId);
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if (friend == null) return;
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final newStatus = await UserApi.getUserStatus(_apiClient, userId: userId);
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await _updateContact(friend.copyWith(userStatus: newStatus));
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notifyListeners();
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}
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void resetInitStatus() {
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_initStatus = null;
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notifyListeners();
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}
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Future<void> _refreshUnreads() async {
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try {
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final unreadMessages = await MessageApi.getUserMessages(_apiClient, unreadOnly: true);
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updateAllUnreads(unreadMessages.toList());
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} catch (_) {}
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}
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void _sortFriendsCache() {
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_sortedFriendsCache.sort((a, b) {
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var aVal = friendHasUnreads(a) ? -3 : 0;
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var bVal = friendHasUnreads(b) ? -3 : 0;
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aVal -= a.latestMessageTime.compareTo(b.latestMessageTime);
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aVal += a.userStatus.onlineStatus.compareTo(b.userStatus.onlineStatus) * 2;
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return aVal.compareTo(bVal);
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});
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}
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Future<void> _updateContact(Friend friend) async {
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final box = Hive.box(_messageBoxKey);
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box.put(friend.id, friend.toMap());
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final lastStatusUpdate = box.get(_lastUpdateKey);
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if (lastStatusUpdate == null || friend.userStatus.lastStatusChange.isAfter(lastStatusUpdate)) {
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await box.put(_lastUpdateKey, friend.userStatus.lastStatusChange);
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}
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final sIndex = _sortedFriendsCache.indexWhere((element) => element.id == friend.id);
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if (sIndex == -1) {
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_sortedFriendsCache.add(friend);
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} else {
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_sortedFriendsCache[sIndex] = friend;
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}
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if (friend.id == selectedFriend?.id) {
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selectedFriend = friend;
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}
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_sortFriendsCache();
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}
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Future<void> _setupHub() async {
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if (!_apiClient.isAuthenticated) {
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_logger.info("Tried to connect to Resonite Hub without authentication, this is probably fine for now.");
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return;
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}
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_hubManager.setHeaders(_apiClient.authorizationHeader);
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_hubManager.setHandler(EventTarget.messageSent, _onMessageSent);
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_hubManager.setHandler(EventTarget.receiveMessage, _onReceiveMessage);
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_hubManager.setHandler(EventTarget.messagesRead, _onMessagesRead);
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_hubManager.setHandler(EventTarget.receiveStatusUpdate, _onReceiveStatusUpdate);
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_hubManager.setHandler(EventTarget.receiveSessionUpdate, _onReceiveSessionUpdate);
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_hubManager.setHandler(EventTarget.removeSession, _onRemoveSession);
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await _hubManager.start();
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await setOnlineStatus(OnlineStatus.online);
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_hubManager.send(
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"InitializeStatus",
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responseHandler: (Map data) async {
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final rawContacts = data["contacts"] as List;
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final contacts = rawContacts.map((e) => Friend.fromMap(e)).toList();
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for (final contact in contacts) {
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await _updateContact(contact);
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}
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_initStatus = "";
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notifyListeners();
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await _refreshUnreads();
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_unreadSafeguard = Timer.periodic(_unreadSafeguardDuration, (timer) => _refreshUnreads());
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_hubManager.send("RequestStatus", arguments: [null, false]);
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},
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);
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}
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Map<String, Session> createSessionMap(String salt) {
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return _sessionMap.map((key, value) => MapEntry(CryptoHelper.idHash(value.id + salt), value));
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}
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void _onMessageSent(List args) {
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final msg = args[0];
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final message = Message.fromMap(msg, withState: MessageState.sent);
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final cache = getUserMessageCache(message.recipientId) ?? _createUserMessageCache(message.recipientId);
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cache.addMessage(message);
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notifyListeners();
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}
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void _onReceiveMessage(List args) {
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final msg = args[0];
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final message = Message.fromMap(msg);
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final cache = getUserMessageCache(message.senderId) ?? _createUserMessageCache(message.senderId);
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cache.addMessage(message);
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if (message.senderId != selectedFriend?.id) {
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addUnread(message);
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updateFriendStatus(message.senderId);
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} else {
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markMessagesRead(MarkReadBatch(senderId: message.senderId, ids: [message.id], readTime: DateTime.now()));
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}
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notifyListeners();
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}
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void _onMessagesRead(List args) {
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final messageIds = args[0]["ids"] as List;
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final recipientId = args[0]["recipientId"];
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if (recipientId == null) return;
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final cache = getUserMessageCache(recipientId);
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if (cache == null) return;
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for (var id in messageIds) {
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cache.setMessageState(id, MessageState.read);
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}
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notifyListeners();
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}
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void _onReceiveStatusUpdate(List args) {
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final statusUpdate = args[0];
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var status = UserStatus.fromMap(statusUpdate);
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final sessionMap = createSessionMap(status.hashSalt);
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status = status.copyWith(
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decodedSessions: status.sessions.map((e) => sessionMap[e.sessionHash] ?? Session.none().copyWith(accessLevel: e.accessLevel)).toList());
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final friend = getAsFriend(statusUpdate["userId"])?.copyWith(userStatus: status);
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if (friend != null) {
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_updateContact(friend);
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}
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for (var session in status.sessions) {
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if (session.broadcastKey != null && _knownSessionKeys.add(session.broadcastKey ?? "")) {
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_hubManager.send("ListenOnKey", arguments: [session.broadcastKey]);
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}
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}
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notifyListeners();
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}
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void _onReceiveSessionUpdate(List args) {
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final sessionUpdate = args[0];
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final session = Session.fromMap(sessionUpdate);
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_sessionMap[session.id] = session;
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notifyListeners();
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}
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void _onRemoveSession(List args) {
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final session = args[0];
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_sessionMap.remove(session);
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notifyListeners();
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}
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}
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