fixing a ton of sloppy mess...

walkguide-mobile/walkguide_app/lib/core/services/call_service.dart

@@ -10,23 +10,68 @@ class CallService {
 
   CallService(this._apiClient);
 
-  Future<Map<String, dynamic>?> requestToken(String channelName) async {
-    final res = await _apiClient.dio.post('/shared/call/token', data: {'channelName': channelName});
+  Future<Map<String, dynamic>?> requestToken({required int receiverId}) async {
+    final res = await _apiClient.dio.post(
+      '/shared/call/token',
+      data: {'receiverId': receiverId},
+    );
     final data = res.data['data'];
     return data is Map<String, dynamic> ? data : null;
   }
 
-  Future<void> notifyIncomingCall({required int receiverId, required String channelName}) async {
+  Future<int?> getPairedReceiverId() async {
+    final res = await _apiClient.dio.get('/pairing/status');
+    final data = res.data['data'];
+    if (data is! Map<String, dynamic>) return null;
+    final id = data['pairedWithId'];
+    return id is num ? id.toInt() : int.tryParse(id?.toString() ?? '');
+  }
+
+  Future<void> notifyIncomingCall({
+    required int receiverId,
+    required String channelName,
+    String? agoraToken,
+    int receiverUid = 0,
+  }) async {
     await _apiClient.dio.post('/shared/call/notify', data: {
       'receiverId': receiverId,
       'channelName': channelName,
+      'agoraToken': agoraToken,
+      'receiverUid': receiverUid,
     });
   }
 
-  Future<bool> joinChannel({required String channelName, int uid = 0}) async {
+  Future<bool> callPairedUser({int uid = 0}) async {
+    final receiverId = await getPairedReceiverId();
+    if (receiverId == null) return false;
+
+    final tokenData = await requestToken(receiverId: receiverId);
+    final channelName = tokenData?['channelName']?.toString();
+    final token = tokenData?['token']?.toString();
+    if (channelName == null || channelName.isEmpty) return false;
+
+    final joined = await joinChannel(
+      channelName: channelName,
+      token: token,
+      uid: uid,
+    );
+    if (joined) {
+      await notifyIncomingCall(
+        receiverId: receiverId,
+        channelName: channelName,
+        agoraToken: token,
+        receiverUid: uid,
+      );
+    }
+    return joined;
+  }
+
+  Future<bool> joinChannel({
+    required String channelName,
+    String? token,
+    int uid = 0,
+  }) async {
     try {
-      final tokenData = await requestToken(channelName);
-      final token = tokenData?['token']?.toString();
       _engine ??= createAgoraRtcEngine();
       await _engine!.initialize(const RtcEngineContext(appId: AppConstants.agoraAppId));
       await _engine!.enableAudio();