руки переломаю

lib/backend/api.dart

@@ -237,6 +237,11 @@ class Api {
     _dispatcher.registerHandler(opcode, handler);
   }
 
+  /// Снимает обработчик пушей с указанного опкода.
+  void unregisterPushHandler(int opcode) {
+    _dispatcher.unregisterHandler(opcode);
+  }
+
   /// Стрим всех входящих пушей от сервера.
   Stream<Packet> get pushStream => _dispatcher.pushStream;
 
@@ -248,6 +253,7 @@ class Api {
     _connection.dispose();
     _stateController.close();
     _sessionExpiredController.close();
+    _handshakeSuccessController.close();
   }
 
   // Внутрянка

lib/backend/models/chat_folder.dart

@@ -25,7 +25,7 @@ class ChatFolder {
 
   factory ChatFolder.fromJson(Map<String, dynamic> json) {
     return ChatFolder(
-      id: json['id'].toString(),
+      id: json['id']?.toString() ?? '',
       title: json['title']?.toString() ?? '',
       emoji: json['emoji']?.toString(),
       include: (json['include'] as List<dynamic>?)

lib/backend/modules/account.dart

@@ -289,7 +289,7 @@ class LoginSyncParams {
       draftsSync: int.tryParse(values[SyncKey.draftsSync] ?? '') ?? 0,
       bannersSync: int.tryParse(values[SyncKey.bannersSync] ?? '') ?? 0,
       presenceSync: int.tryParse(values[SyncKey.presenceSync] ?? '') ?? -1,
-      lastLogin: int.parse(lastLogin),
+      lastLogin: int.tryParse(lastLogin) ?? 0,
       configHash: values[SyncKey.configHash],
       chatCacheFingerprint: values[SyncKey.chatCacheFingerprint],
     );
@@ -646,19 +646,25 @@ class AccountModule {
 
   Future<ProfileData> _processProfileUpdate(Packet packet) async {
     _api.registerPushHandler(Opcode.notifProfile, (p) {});
-    await for (final push in _api.pushStream.where(
-      (p) => p.opcode == Opcode.notifProfile,
-    )) {
-      final payload = push.payload;
-      if (payload is Map) {
-        final profile = payload['profile'];
-        if (profile is Map) {
-          final contact = profile['contact'];
-          if (contact is Map) {
-            return ProfileData.fromServerMap(contact.cast<dynamic, dynamic>());
+    try {
+      await for (final push in _api.pushStream
+          .where((p) => p.opcode == Opcode.notifProfile)
+          .timeout(const Duration(seconds: 15))) {
+        final payload = push.payload;
+        if (payload is Map) {
+          final profile = payload['profile'];
+          if (profile is Map) {
+            final contact = profile['contact'];
+            if (contact is Map) {
+              return ProfileData.fromServerMap(contact.cast<dynamic, dynamic>());
+            }
           }
         }
       }
+    } on TimeoutException {
+      throw Exception('Таймаут ожидания обновления профиля');
+    } finally {
+      _api.unregisterPushHandler(Opcode.notifProfile);
     }
     throw Exception('Не удалось получить обновлённый профиль');
   }

lib/backend/modules/calls.dart

@@ -92,8 +92,8 @@ class CallsModule {
           msg['id']?.toString() ??
           DateTime.now().millisecondsSinceEpoch.toString();
 
-      final name = contact?.firstName != null
-          ? '${contact!.firstName} ${contact.lastName ?? ''}'.trim()
+      final name = (contact != null && contact.firstName.isNotEmpty)
+          ? '${contact.firstName} ${contact.lastName ?? ''}'.trim()
           : 'Неизвестный';
 
       extractedCalls.add(

lib/backend/modules/chats.dart

@@ -3,6 +3,21 @@ import 'dart:convert';
 import '../../core/storage/app_database.dart';
 import '../../core/utils/logger.dart';
 
+Map<int, int> _parseParticipants(dynamic raw) {
+  try {
+    final decoded = raw is String ? jsonDecode(raw) : raw;
+    if (decoded is Map) {
+      return decoded.map((k, v) => MapEntry(
+        k is int ? k : int.parse(k.toString()),
+        v is int ? v : int.tryParse(v.toString()) ?? 0,
+      ));
+    }
+  } catch (e) {
+    logger.e('Failed to parse participants: $e');
+  }
+  return {};
+}
+
 class CachedChat {
   final int id;
   final int accountId;
@@ -59,8 +74,7 @@ class CachedChat {
     dontDisturbUntil: row['dont_disturb_until'] as int,
     isOnline: (row['is_online'] as int) == 1,
     seenTime: row['seen_time'] as int,
-    // watafuc
-    participants:  Map<String, int>.from(jsonDecode(row['participants'])).map((k, v) => MapEntry(int.parse(k), v))
+    participants: _parseParticipants(row['participants'])
   );
 
   Map<String, dynamic> toDbRow() => {
@@ -242,7 +256,7 @@ class ChatsModule {
             isOnline = (presence['status'] as int?) == 1;
           }
         }
-        Map<int, int> participants = Map<int, int>.from(chat['participants']);
+        Map<int, int> participants = _parseParticipants(chat['participants']);
 
         return CachedChat(
           id: id,
@@ -282,12 +296,12 @@ class ChatsModule {
   static String? _nameFromContact(Map<dynamic, dynamic> contact) {
     final names = contact['names'];
     if (names is! List || names.isEmpty) return null;
-    final name =
-        names.firstWhere(
-              (n) => n is Map && n['type'] == 'ONEME',
-              orElse: () => names.first,
-            )
-            as Map;
+    final nameRaw = names.firstWhere(
+      (n) => n is Map && n['type'] == 'ONEME',
+      orElse: () => names.firstWhere((n) => n is Map, orElse: () => null),
+    );
+    if (nameRaw is! Map) return null;
+    final name = nameRaw;
     return name['name'] as String?;
   }
 }

lib/backend/modules/contacts.dart

@@ -72,12 +72,12 @@ class ContactsModule {
 
     final names = contact['names'];
     if (names is List && names.isNotEmpty) {
-      final name =
-          names.firstWhere(
-                (n) => n is Map && n['type'] == 'ONEME',
-                orElse: () => names.first,
-              )
-              as Map;
+      final nameRaw = names.firstWhere(
+        (n) => n is Map && n['type'] == 'ONEME',
+        orElse: () => names.firstWhere((n) => n is Map, orElse: () => null),
+      );
+      if (nameRaw is! Map) return null;
+      final name = nameRaw;
       firstName = (name['firstName'] as String?) ?? '';
       lastName = name['lastName'] as String?;
     }

lib/backend/modules/messages.dart

@@ -155,7 +155,9 @@ class MessagesModule {
     }
 
     if (rows.isNotEmpty) {
-      AppDatabase.saveMessages(rows).ignore();
+      AppDatabase.saveMessages(rows).catchError((e) {
+        debugPrint('saveMessages error: $e');
+      });
     }
 
     return results;
@@ -257,9 +259,8 @@ class MessagesModule {
       if (data is! Map) return null;
 
       final content = data['content'];
-      if (content is String) {
-        return Uri.parse(content).host.isNotEmpty ? null : null;
-      }
+      if (content is Uint8List) return content;
+      if (content is List<int>) return Uint8List.fromList(content);
       return null;
     } catch (e) {
       return null;
@@ -295,9 +296,8 @@ class MessagesModule {
       if (data is! Map) return null;
 
       final content = data['content'];
-      if (content is String) {
-        return Uri.parse(content).host.isNotEmpty ? null : null;
-      }
+      if (content is Uint8List) return content;
+      if (content is List<int>) return Uint8List.fromList(content);
       return null;
     } catch (e) {
       return null;
@@ -333,9 +333,8 @@ class MessagesModule {
       if (data is! Map) return null;
 
       final content = data['content'];
-      if (content is String) {
-        return Uri.parse(content).host.isNotEmpty ? null : null;
-      }
+      if (content is Uint8List) return content;
+      if (content is List<int>) return Uint8List.fromList(content);
       return null;
     } catch (e) {
       return null;