老师端几乎ok

lib/pages/teacher/room/viewmodel/students_view_model.dart

@@ -1,30 +1,33 @@
-import 'package:app/data/models/student.dart';
 import 'package:app/request/dto/room/room_user_dto.dart';
+import 'package:app/request/dto/room/rtc_token_dto.dart';
 import 'package:app/request/websocket/room_protocol.dart';
 import 'package:app/request/websocket/room_websocket.dart';
 import 'package:app/utils/time.dart';
 import 'package:flutter/cupertino.dart';
 
+import 'type.dart';
+
 class StudentsViewModel extends ChangeNotifier {
-  ///学生摄像头列表
-  List<Student> _students = [];
-
-  ///房间的基础信息，房间id、房间开始时间
-  final int roomId;
-  late final DateTime startTime;
-
   StudentsViewModel({required this.roomId, String? start}) {
     startTime = parseTime(start!);
     _startRoom();
   }
 
-  List<Student> get students => _students;
+  ///学生摄像头列表
+  List<RoomUserDto> _students = [];
+
+  ///房间的基础信息，房间id、房间开始时间
+  final int roomId;
+  late final DateTime startTime;
+
+  ///老师选中的学生id
+  int activeSId = 0;
+
+  List<RoomUserDto> get students => _students;
 
   ///是否能开始自习室
   bool get canEnterRoom {
     final now = DateTime.now();
-
-    // 如果到了开始时间，则可以进入房间
     if (now.isAfter(startTime)) {
       return true;
     }
@@ -32,11 +35,12 @@ class StudentsViewModel extends ChangeNotifier {
   }
 
   ///websocket管理
-  late RoomWebSocket _ws;
+  final RoomWebSocket _ws = RoomWebSocket();
+
+  RtcTokenDto? get rtcToken => _ws.rtcToken;
 
   ///开始链接房间
   void _startRoom() async {
-    _ws = RoomWebSocket();
     //如果socket的token没有，先初始化
     if (_ws.wsToken.isEmpty) {
       await _ws.initToken(roomId);
@@ -48,9 +52,21 @@ class StudentsViewModel extends ChangeNotifier {
 
     //监听各种ws事件
     _ws.stream.listen((msg) {
+      // 自习室人员变化
       if (msg.event == RoomEvent.changeUser) {
         final list = msg.data['user_list'].map((x) => RoomUserDto.fromJson(x)).toList();
         onStudentChange(list);
+      } else if ([
+        RoomEvent.openSpeaker,
+        RoomEvent.closeSpeaker,
+        RoomEvent.openMic,
+        RoomEvent.closeMic,
+        RoomEvent.openCamera,
+        RoomEvent.closeCamera,
+        RoomEvent.handUp,
+      ].contains(msg.event)) {
+        onSyncStudentStatus();
+        //TODO 直接同步服务器最新的数组覆盖，或者覆盖这一条学生的
       }
     });
     notifyListeners();
@@ -66,8 +82,69 @@ class StudentsViewModel extends ChangeNotifier {
     }
   }
 
+  ///学生选择
+  void selectStudent(int id) {
+    activeSId = id;
+    notifyListeners();
+  }
+
+  ///手动关闭学生扬声器、摄像头、麦克风等操作
+  /// - [uId]: 学生id
+  /// - [action]: 操作类型
+  void closeStudentSpeaker({
+    required int uId,
+    required StudentAction action,
+  }) {
+    final student = _students.firstWhere((t) => t.userId == uId);
+
+    Map<String, int> data = {
+      'target_user_id': uId,
+    };
+    //如果是控制扬声器
+    if (action == StudentAction.speaker) {
+      student.speekerStatus = student.speekerStatus == 0 ? 1 : 0;
+      data['speeker'] = student.speekerStatus;
+    } else if (action == StudentAction.camera) {
+      //如果是摄像头，只能关
+      if (student.cameraStatus == 0) return;
+      student.cameraStatus = 0;
+      data['camera'] = 0;
+    } else if (action == StudentAction.microphone) {
+      //如果是麦克风，只能关
+      if (student.microphoneStatus == 0) return;
+      student.microphoneStatus = 0;
+      data['microphone'] = 0;
+    }
+    notifyListeners();
+    _ws.send(RoomCommand.switchStudentCamera, data);
+  }
+
+  //清除全部学生举手，或者是指定
+  void clearHandUp(int? id) {
+    Map<String, dynamic> data = {};
+    if (id == null) {
+      data['target_user_id'] = "all";
+      _students.forEach((t) => t.handup = 0);
+    } else {
+      data['target_user_id'] = id;
+      _students.firstWhere((t) => t.userId == id).handup = 0;
+    }
+    notifyListeners();
+    _ws.send(RoomCommand.clearHandUp, data);
+  }
+
   ///学生人员变化事件，（如加入、退出、掉线）
-  void onStudentChange(List<RoomUserDto> list) {}
+  void onStudentChange(List<RoomUserDto> list) {
+    _students = list.where((t) => t.userType != 2).toList();
+    // 如果当前没有学生，则选择第一个
+    if (activeSId == 0 && _students.isNotEmpty) {
+      activeSId = _students.first.userId;
+    }
+    notifyListeners();
+  }
+
+  //TODO 同步学生的最新状态
+  void onSyncStudentStatus() {}
 
   //销毁
   @override

lib/pages/teacher/room/viewmodel/type.dart

@@ -0,0 +1,11 @@
+///老师操作学生的状态、摄像头、扬声器、麦克风
+enum StudentAction {
+  ///摄像头
+  camera,
+
+  ///麦克风
+  microphone,
+
+  ///扬声器
+  speaker,
+}