feat(contacts): обмен номером телефона по NFC/BLE

lib/backend/modules/contacts.dart

@@ -60,8 +60,9 @@ class ContactsModule {
   static Future<CachedContact?> addContact(
     Api api,
     int id,
-    String firstName,
-  ) async {
+    String firstName, {
+    int phone = 0,
+  }) async {
     final resp = await api.sendRequest(Opcode.contactUpdate, {
       'action': 'ADD',
       'contactId': id,
@@ -92,6 +93,9 @@ class ContactsModule {
           };
 
     if (row == null) return null;
+    if (phone > 0 && ((row['phone'] as int?) ?? 0) == 0) {
+      row['phone'] = phone;
+    }
     await AppDatabase.saveContacts([row]);
     if (contact != null) _primeContactCache(contact);
     revision.value++;

lib/core/nfc/nfc_exchange_service.dart

@@ -8,9 +8,10 @@ enum NfcEventType { received, exchanging, cancelled, error }
 class NfcEvent {
   final NfcEventType type;
   final int? id;
+  final int? phone;
   final String? reason;
 
-  const NfcEvent(this.type, this.id, {this.reason});
+  const NfcEvent(this.type, this.id, {this.phone, this.reason});
 }
 
 class NfcStatus {
@@ -47,8 +48,8 @@ class NfcExchangeService {
   Stream<NfcEvent> get events =>
       _events.receiveBroadcastStream().map(_decodeEvent);
 
-  Future<void> start(int selfId) =>
-      _method.invokeMethod('start', {'selfId': selfId});
+  Future<void> start(int selfId, int selfPhone) =>
+      _method.invokeMethod('start', {'selfId': selfId, 'selfPhone': selfPhone});
 
   Future<void> stop() async {
     if (!_supported) return;
@@ -61,9 +62,11 @@ class NfcExchangeService {
     final map = raw is Map ? raw : const {};
     final id = map['id'];
     final parsedId = id is int ? id : (id is num ? id.toInt() : null);
+    final phone = map['phone'];
+    final parsedPhone = phone is int ? phone : (phone is num ? phone.toInt() : null);
     switch (map['event']) {
       case 'received':
-        return NfcEvent(NfcEventType.received, parsedId);
+        return NfcEvent(NfcEventType.received, parsedId, phone: parsedPhone);
       case 'exchanging':
         return const NfcEvent(NfcEventType.exchanging, null);
       case 'error':

lib/frontend/screens/contacts/nfc_exchange_sheet.dart

@@ -9,6 +9,7 @@ import '../../../backend/modules/contacts.dart';
 import '../../../core/cache/info_cache.dart';
 import '../../../core/nfc/nfc_exchange_service.dart';
 import '../../../core/storage/app_database.dart';
+import '../../../core/utils/format.dart';
 import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
 import '../../widgets/komet_avatar.dart';
@@ -41,6 +42,7 @@ class _NfcExchangeSheetState extends State<NfcExchangeSheet>
 
   _Stage _stage = _Stage.checking;
   int? _peerId;
+  int? _peerPhone;
   Map<String, dynamic>? _peerInfo;
   String _failReason = '';
 
@@ -85,7 +87,7 @@ class _NfcExchangeSheetState extends State<NfcExchangeSheet>
       return;
     }
     _sub = _nfc.events.listen(_onEvent);
-    await _nfc.start(profile.id);
+    await _nfc.start(profile.id, profile.phone);
     if (mounted) setState(() => _stage = _Stage.scanning);
   }
 
@@ -114,6 +116,7 @@ class _NfcExchangeSheetState extends State<NfcExchangeSheet>
     final id = event.id;
     if (id == null || _peerId != null) return;
     _peerId = id;
+    _peerPhone = (event.phone != null && event.phone! > 0) ? event.phone : null;
     HapticFeedback.mediumImpact();
     _reveal.forward(from: 0);
     setState(() => _stage = _Stage.found);
@@ -163,7 +166,12 @@ class _NfcExchangeSheetState extends State<NfcExchangeSheet>
     if (id == null) return;
     setState(() => _stage = _Stage.adding);
     try {
-      await ContactsModule.addContact(api, id, _firstNameForAdd());
+      await ContactsModule.addContact(
+        api,
+        id,
+        _firstNameForAdd(),
+        phone: _peerPhone ?? 0,
+      );
       if (!mounted) return;
       setState(() => _stage = _Stage.added);
       showCustomNotification(context, 'Контакт добавлен');
@@ -413,7 +421,7 @@ class _NfcExchangeSheetState extends State<NfcExchangeSheet>
           ),
           const SizedBox(height: 4),
           Text(
-            'ID ${_peerId ?? ''}',
+            formatPhone(_peerPhone) ?? 'ID ${_peerId ?? ''}',
             style: TextStyle(color: cs.onSurfaceVariant, fontSize: 13),
           ),
           const SizedBox(height: 24),