feat(calls): Щас попробую легонечко с data channel побурмалдить

lib/core/calls/call_session.dart

@@ -84,6 +84,12 @@ class CallSession {
   static const double _speakLevelOn = 0.05;
   static const int _speakHoldTicks = 3;
 
+  RTCDataChannel? _probeChannel;
+  bool _peerIsKomet = false;
+
+  static const String _probeQuestion = 'AreYouKomet?';
+  static const String _probeAnswer = 'YesImKomet😎';
+
   bool get localVideo => _localVideo;
   bool get localScreen => _localScreen;
   MediaStream? get localVideoStream => _localVideoStream;
@@ -104,6 +110,7 @@ class CallSession {
   final _state = StreamController<CallSessionState>.broadcast();
   final _remoteStream = StreamController<MediaStream>.broadcast();
   final _info = StreamController<void>.broadcast();
+  final _kometDetected = StreamController<void>.broadcast();
 
   Stream<CallSessionState> get stateStream => _state.stream;
   Stream<MediaStream> get remoteStreamStream => _remoteStream.stream;
@@ -111,6 +118,9 @@ class CallSession {
 
   Stream<void> get infoUpdates => _info.stream;
 
+  Stream<void> get peerKometDetected => _kometDetected.stream;
+  bool get peerIsKomet => _peerIsKomet;
+
   bool get isMuted => _muted;
   bool get peerMuted => _peerMuted;
   bool get peerVideo => _peerVideo;
@@ -482,6 +492,8 @@ class CallSession {
       init: RTCRtpTransceiverInit(direction: TransceiverDirection.RecvOnly),
     );
 
+    await _setupKometProbe(pc);
+
     if (role == CallRole.caller) {
       _setState(CallSessionState.ringing);
       await _createAndSendOffer();
@@ -499,6 +511,7 @@ class CallSession {
     });
     pc.onIceCandidate = _onLocalCandidate;
     pc.onTrack = (event) => unawaited(_onRemoteTrack(event));
+    pc.onDataChannel = (channel) => _bindProbeChannel(channel, ask: false);
     pc.onIceConnectionState = (s) => logger.t('[call] ice $s');
     pc.onConnectionState = (s) {
       logger.t('[call] pc $s');
@@ -534,10 +547,56 @@ class CallSession {
     }
   }
 
+  Future<void> _setupKometProbe(RTCPeerConnection pc) async {
+    if (_topology == 'SERVER') return;
+    try {
+      final channel = await pc.createDataChannel(
+        'komet',
+        RTCDataChannelInit()..ordered = true,
+      );
+      _probeChannel = channel;
+      _bindProbeChannel(channel, ask: true);
+    } catch (_) {}
+  }
+
+  void _bindProbeChannel(RTCDataChannel channel, {required bool ask}) {
+    channel.onMessage = (message) => _onProbeMessage(channel, message);
+    channel.onDataChannelState = (state) {
+      if (ask && state == RTCDataChannelState.RTCDataChannelOpen) {
+        _sendProbe(channel, _probeQuestion);
+      }
+    };
+  }
+
+  void _onProbeMessage(RTCDataChannel channel, RTCDataChannelMessage message) {
+    if (message.isBinary) return;
+    final text = message.text;
+    if (text == _probeQuestion) {
+      _sendProbe(channel, _probeAnswer);
+    } else if (text == _probeAnswer) {
+      _markPeerKomet();
+    }
+  }
+
+  void _sendProbe(RTCDataChannel channel, String text) {
+    try {
+      channel.send(RTCDataChannelMessage(text));
+    } catch (_) {}
+  }
+
+  void _markPeerKomet() {
+    if (_peerIsKomet) return;
+    _peerIsKomet = true;
+    logger.t('[call] peer is Komet');
+    if (!_kometDetected.isClosed) _kometDetected.add(null);
+    _notifyInfo();
+  }
+
   Future<void> _setupSfu() async {
     if (_pc != null) {
       await _pc!.close();
       _pc = null;
+      _probeChannel = null;
       _remoteDescSet = false;
       _pendingCandidates.clear();
       for (final track in _localStream?.getTracks() ?? <MediaStreamTrack>[]) {
@@ -1018,6 +1077,10 @@ class CallSession {
 
   Future<void> _dispose() async {
     _levelTimer?.cancel();
+    try {
+      await _probeChannel?.close();
+    } catch (_) {}
+    _probeChannel = null;
     for (final track in _localStream?.getTracks() ?? <MediaStreamTrack>[]) {
       await track.stop();
     }
@@ -1033,6 +1096,7 @@ class CallSession {
     if (!_state.isClosed) await _state.close();
     if (!_remoteStream.isClosed) await _remoteStream.close();
     if (!_info.isClosed) await _info.close();
+    if (!_kometDetected.isClosed) await _kometDetected.close();
   }
 
   void _applyConnectionInfo(Map<String, dynamic> msg, List iceServers) {

lib/core/utils/file_log_output.dart

@@ -1,2 +0,0 @@
-export 'file_log_output_stub.dart'
-    if (dart.library.io) 'file_log_output_io.dart';

lib/core/utils/file_log_output_io.dart

@@ -1,61 +0,0 @@
-import 'dart:io';
-
-import 'package:logger/logger.dart';
-import 'package:path_provider/path_provider.dart';
-
-class FileLogOutput extends LogOutput {
-  FileLogOutput._();
-
-  static final FileLogOutput instance = FileLogOutput._();
-
-  RandomAccessFile? _raf;
-  String? _path;
-  final List<String> _buffer = [];
-
-  static final RegExp _ansi = RegExp('\x1B\\[[0-9;]*m');
-
-  String? get path => _path;
-
-  Future<void> start() async {
-    if (_raf != null) return;
-    try {
-      final dir = await getApplicationSupportDirectory();
-      final file = File('${dir.path}/komet_calls.log');
-      final raf = await file.open(mode: FileMode.write);
-      _path = file.path;
-      _raf = raf;
-      _write('=== komet log ${file.path} ===');
-      for (final line in _buffer) {
-        _write(line);
-      }
-      _buffer.clear();
-    } catch (_) {}
-  }
-
-  void _write(String line) {
-    try {
-      _raf?.writeStringSync('$line\n');
-    } catch (_) {}
-  }
-
-  @override
-  void output(OutputEvent event) {
-    if (_raf == null) {
-      for (final line in event.lines) {
-        if (_buffer.length < 20000) _buffer.add(line.replaceAll(_ansi, ''));
-      }
-      return;
-    }
-    for (final line in event.lines) {
-      _write(line.replaceAll(_ansi, ''));
-    }
-  }
-
-  @override
-  Future<void> destroy() async {
-    try {
-      await _raf?.close();
-    } catch (_) {}
-    _raf = null;
-  }
-}

lib/core/utils/file_log_output_stub.dart

@@ -1,14 +0,0 @@
-import 'package:logger/logger.dart';
-
-class FileLogOutput extends LogOutput {
-  FileLogOutput._();
-
-  static final FileLogOutput instance = FileLogOutput._();
-
-  String? get path => null;
-
-  Future<void> start() async {}
-
-  @override
-  void output(OutputEvent event) {}
-}

lib/core/utils/logger.dart

@@ -3,8 +3,6 @@ import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import 'package:logger/logger.dart';
 
-import 'file_log_output.dart';
-
 Level _minimumLogLevel() {
   const raw = String.fromEnvironment('KOMET_LOG_LEVEL', defaultValue: '');
   switch (raw.toLowerCase()) {
@@ -43,13 +41,9 @@ final logger = Logger(
   filter: _logFilter(),
   level: _minimumLogLevel(),
   printer: KometLogPrinter(),
-  output: MultiOutput([ConsoleOutput(), FileLogOutput.instance]),
+  output: ConsoleOutput(),
 );
 
-Future<void> startFileLogging() => FileLogOutput.instance.start();
-
-String? get logFilePath => FileLogOutput.instance.path;
-
 int _importanceSortKey(Level level) {
   final v = level.value;
   if (v >= 5999) {

lib/frontend/screens/calls/call_screen.dart

@@ -20,6 +20,7 @@ import '../../../core/calls/call_controller.dart';
 import '../../../core/calls/call_info.dart';
 import '../../../core/calls/call_session.dart';
 import '../../../core/utils/format.dart';
+import '../../widgets/custom_notification.dart';
 import '../../widgets/glossy_pill.dart';
 
 const Color _kEndRed = Color(0xFFE5484D);
@@ -50,6 +51,7 @@ class _CallScreenState extends State<CallScreen>
   CallSession? _session;
   StreamSubscription<CallSessionState>? _stateSub;
   StreamSubscription<void>? _infoSub;
+  StreamSubscription<void>? _kometSub;
   StreamSubscription<MediaStream>? _remoteStreamSub;
   CallSessionState _state = CallSessionState.connecting;
   bool _incomingPending = false;
@@ -212,12 +214,21 @@ class _CallScreenState extends State<CallScreen>
       setState(() {});
     });
     _remoteStreamSub = session.remoteStreamStream.listen(_attachStream);
+    _kometSub = session.peerKometDetected.listen((_) => _showKometBadge());
+    if (session.peerIsKomet) {
+      WidgetsBinding.instance.addPostFrameCallback((_) => _showKometBadge());
+    }
     final existing = session.remoteStream;
     if (existing != null) _attachStream(existing);
     _resolveParticipants();
     _syncVideo();
   }
 
+  void _showKometBadge() {
+    if (!mounted) return;
+    showCustomNotification(context, 'Этот человек использует Komet! :3');
+  }
+
   void _resolveParticipants() {
     final session = _session;
     if (session == null) return;
@@ -337,6 +348,7 @@ class _CallScreenState extends State<CallScreen>
   void dispose() {
     _stateSub?.cancel();
     _infoSub?.cancel();
+    _kometSub?.cancel();
     _remoteStreamSub?.cancel();
     _dotsController.dispose();
     _videoController.dispose();

lib/main.dart

@@ -11,7 +11,6 @@ import 'package:package_info_plus/package_info_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'backend/api.dart';
 import 'core/cache/info_cache.dart';
-import 'core/utils/logger.dart';
 import 'core/config/app_accent.dart';
 import 'core/config/app_amoled.dart';
 import 'core/config/app_bubble_behavior.dart';
@@ -79,8 +78,6 @@ Future<Locale> _loadInitialLocale() async {
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
-  await startFileLogging();
-  logger.i('[log] file: ${logFilePath ?? '—'}');
   await AppDatabase.init();
   final activeAccountId = await TokenStorage.getActiveAccountId();
   if (activeAccountId != null) {