feat(call): 实现通话接听和RTC频道加入功能

- 集成permission_handler处理摄像头和麦克风权限
- 实现根据通话类型设置视频状态（语音通话关闭摄像头，视频通话开启摄像头）
- 添加channelId验证和RTC频道加入逻辑
- 实现joinChannel和_joinRtcChannel方法处理RTC连接
- 添加权限检查和设置功能
- 优化VideoCallPage中通话消息处理逻辑
- 修复通话接听和拒绝时的消息传递问题

lib/controller/message/call_controller.dart

@@ -9,6 +9,7 @@ import 'package:dating_touchme_app/rtc/rtc_manager.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
 import 'package:im_flutter_sdk/im_flutter_sdk.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 import 'chat_controller.dart';
 
@@ -290,8 +291,39 @@ class CallController extends GetxController {
         chatController: chatController,
       );
 
-      // TODO: 这里可以集成实际的通话SDK，接听通话
-      // 例如：await RTCManager.instance.acceptCall(targetUserId, callType);
+      // 从通话信息中获取 channelId
+      final channelId = callInfo['channelId'] as String?;
+      if (channelId == null || channelId.isEmpty) {
+        print('❌ [CallController] channelId 为空，无法加入 RTC 频道');
+        SmartDialog.showToast('频道ID不存在');
+        return false;
+      }
+
+      // 根据通话类型设置摄像头状态
+      try {
+        if (callType == CallType.voice) {
+          // 语音通话：禁用视频（关闭摄像头）
+          await RTCManager.instance.disableVideo();
+          print('📞 [CallController] 语音通话，已关闭摄像头');
+        } else {
+          // 视频通话：启用视频（打开摄像头）
+          await RTCManager.instance.enableVideo();
+          print('📞 [CallController] 视频通话，已打开摄像头');
+        }
+      } catch (e) {
+        print('⚠️ [CallController] 设置视频状态失败: $e');
+        // 继续执行，不阻止加入频道
+      }
+
+      // 加入 RTC 频道，接听通话
+      try {
+        await joinChannel(channelId);
+        print('✅ [CallController] 已加入 RTC 频道: $channelId');
+      } catch (e) {
+        print('❌ [CallController] 加入 RTC 频道失败: $e');
+        SmartDialog.showToast('加入通话频道失败');
+        return false;
+      }
 
       return true;
     } catch (e) {
@@ -577,6 +609,7 @@ class CallController extends GetxController {
             'callDuration': params['callDuration'] != null 
                 ? int.tryParse(params['callDuration']!) 
                 : null,
+            'channelId': params['channelId'],
           };
         }
       }
@@ -625,6 +658,72 @@ class CallController extends GetxController {
     }
   }
 
+  Future<void> joinChannel(String channelName) async {
+    final response = await _networkService.rtcApi.getSwRtcToken(channelName);
+    final base = response.data;
+    if (base.isSuccess && base.data != null) {
+      rtcChannel.value = base.data;
+      await _joinRtcChannel(
+        base.data!.token,
+        channelName,
+        base.data!.uid,
+        ClientRoleType.clientRoleBroadcaster,
+      );
+    }
+  }
+
+  Future<void> _joinRtcChannel(
+    String token,
+    String channelName,
+    int uid,
+    ClientRoleType roleType,
+  ) async {
+    try {
+      final granted = await _ensureRtcPermissions();
+      if (!granted) return;
+      await RTCManager.instance.joinChannel(
+        token: token,
+        channelId: channelName,
+        uid: uid,
+        role: roleType,
+        rtcType: RTCType.call,
+      );
+      final data = {
+        'channelId': channelName,
+        'seatNumber': 1,
+        'isMicrophoneOn': true,
+        'isVideoOn': true,
+      };
+      final response = await _networkService.rtcApi.connectRtcChannel(data);
+      if (!response.data.isSuccess) {
+        SmartDialog.showToast(response.data.message);
+        return;
+      }
+      SmartDialog.showToast('加入通话成功');
+    } catch (e) {
+      SmartDialog.showToast('加入频道失败：$e');
+    }
+  }
+
+  Future<bool> _ensureRtcPermissions() async {
+    final statuses = await [Permission.camera, Permission.microphone].request();
+    final allGranted = statuses.values.every((status) => status.isGranted);
+    if (allGranted) {
+      return true;
+    }
+
+    final permanentlyDenied = statuses.values.any(
+          (status) => status.isPermanentlyDenied,
+    );
+    if (permanentlyDenied) {
+      SmartDialog.showToast('请在系统设置中开启摄像头和麦克风权限');
+      await openAppSettings();
+    } else {
+      SmartDialog.showToast('请允许摄像头和麦克风权限以进入房间');
+    }
+    return false;
+  }
+
   @override
   void onClose() {
     stopCallAudio();

lib/im/im_manager.dart

@@ -1516,7 +1516,9 @@ class IMManager {
                     Get.to(() => VideoCallPage(
                       targetUserId: fromId,
                       isInitiator: false,
+                      callType: callType,
                       channelId: channelId,
+                      callMessage: message,
                     ));
                   },
                   onAccept: () async {
@@ -1549,6 +1551,9 @@ class IMManager {
                       Get.to(() => VideoCallPage(
                         targetUserId: fromId,
                         isInitiator: false,
+                        callType: callType,
+                        channelId: channelId,
+                        callMessage: message,
                       ));
                     }
                   },

lib/pages/message/video_call_page.dart

@@ -23,6 +23,7 @@ class VideoCallPage extends StatefulWidget {
   final String? channelId;
   final MarriageData? userData;
   final bool isInitiator; // 是否是发起方
+  final EMMessage? callMessage; // 通话消息（用于接听通话时更新消息状态）
 
   const VideoCallPage({
     super.key,
@@ -31,6 +32,7 @@ class VideoCallPage extends StatefulWidget {
     this.channelId,
     this.userData,
     this.isInitiator = true,
+    this.callMessage,
   });
 
   @override
@@ -564,46 +566,24 @@ class _VideoCallPageState extends State<VideoCallPage> {
   /// 接听通话
   Future<void> _acceptCall() async {
     try {
-      // 尝试从 ChatController 获取最近的通话消息
+      if (widget.callMessage == null) {
+        SmartDialog.showToast('未找到通话邀请消息');
+        return;
+      }
+
+      // 尝试获取 ChatController
       ChatController? chatController;
-      EMMessage? callMessage;
-      
       try {
         final tag = 'chat_${widget.targetUserId}';
         if (Get.isRegistered<ChatController>(tag: tag)) {
           chatController = Get.find<ChatController>(tag: tag);
-          // 查找最近的通话邀请消息（从后往前找，找到第一条通话消息）
-          final messages = chatController.messages;
-          for (var i = messages.length - 1; i >= 0; i--) {
-            final msg = messages[i];
-            if (msg.body.type == MessageType.CUSTOM) {
-              final customBody = msg.body as EMCustomMessageBody;
-              // 检查 event 是否为 'call'
-              if (customBody.event == 'call') {
-                final params = customBody.params;
-                // 检查通话状态是否为未接听状态（missed 或 calling）
-                if (params != null) {
-                  final callStatus = params['callStatus'];
-                  if (callStatus == 'missed' || callStatus == 'calling') {
-                    callMessage = msg;
-                    break;
-                  }
-                }
-              }
-            }
-          }
         }
       } catch (e) {
         print('⚠️ [VideoCallPage] 获取ChatController失败: $e');
       }
       
-      if (callMessage == null) {
-        SmartDialog.showToast('未找到通话邀请消息');
-        return;
-      }
-      
       final accepted = await _callController.acceptCall(
-        message: callMessage,
+        message: widget.callMessage!,
         chatController: chatController,
       );
       
@@ -622,48 +602,26 @@ class _VideoCallPageState extends State<VideoCallPage> {
   /// 拒绝通话
   Future<void> _rejectCall() async {
     try {
-      // 尝试从 ChatController 获取最近的通话消息
+      // 尝试获取 ChatController
       ChatController? chatController;
-      EMMessage? callMessage;
-      
       try {
         final tag = 'chat_${widget.targetUserId}';
         if (Get.isRegistered<ChatController>(tag: tag)) {
           chatController = Get.find<ChatController>(tag: tag);
-          // 查找最近的通话邀请消息（从后往前找，找到第一条通话消息）
-          final messages = chatController.messages;
-          for (var i = messages.length - 1; i >= 0; i--) {
-            final msg = messages[i];
-            if (msg.body.type == MessageType.CUSTOM) {
-              final customBody = msg.body as EMCustomMessageBody;
-              // 检查 event 是否为 'call'
-              if (customBody.event == 'call') {
-                final params = customBody.params;
-                // 检查通话状态是否为未接听状态（missed 或 calling）
-                if (params != null) {
-                  final callStatus = params['callStatus'];
-                  if (callStatus == 'missed' || callStatus == 'calling') {
-                    callMessage = msg;
-                    break;
-                  }
-                }
-              }
-            }
-          }
         }
       } catch (e) {
         print('⚠️ [VideoCallPage] 获取ChatController失败: $e');
       }
       
-      if (callMessage == null) {
-        // 即使没有找到消息，也执行拒绝操作（关闭页面）
+      if (widget.callMessage == null) {
+        // 即使没有消息，也执行拒绝操作（关闭页面）
         await _callController.endCall(callDuration: 0);
         Get.back();
         return;
       }
       
       final rejected = await _callController.rejectCall(
-        message: callMessage,
+        message: widget.callMessage!,
         chatController: chatController,
       );