Kulexiu/KulexiuForStudent/KulexiuForStudent/Module/Classroom/Controller/NewClassRoomViewController.m

//
//  NewClassRoomViewController.m
//  StudentDaya
//
//  Created by Kyle on 2020/6/12.
//  Copyright © 2020 DayaMusic. All rights reserved.
//

#import "NewClassRoomViewController.h"
#import "ClassTitleView.h"
#import "ClassroomMainContainer.h"
#import "ClassVideoListView.h"
#import "KSNormalAlertView.h"
// 聊天列表
#import "LoginHelper.h"
#import "ChatAreaView.h"
#import "RTCService.h"
#import "Classroom.h"
#import "ClassroomService.h"
#import <MBProgressHUD/MBProgressHUD.h>
#import "AppDelegate.h"
#import "KSWhiteboardControl.h"
#import "UIDevice+TFDevice.h"
#import "KSRemoteUserManager.h"
#import "LocalRenderManager.h"
#import "NSDate+Transform.h"

#import "UIViewController+zhStatusBarStyle.h"
#import "KSTipsView.h"

#import "ClassroomTimerManager.h"

#define TitleViewHeight  (82)

#define KSExamSongFileKey (@"KSDownloadAccompany")

#define TTimeLableWidth   (180)
#define TTimeLableHeight  (20)

typedef NS_ENUM(NSInteger, ACCOMPANYACTION) {
    ACCOMPANYACTION_NONE,  // 没有在播放
    ACCOMPANYACTION_SONG,  // 播放原声
    ACCOMPANYACTION_ACCOMPANY, // 播放伴奏
};

@interface NewClassRoomViewController ()<ClassTitleViewDelegate, RCRTCRoomEventDelegate, ClassroomDelegate, ClassroomMainContainerDelegate, UIGestureRecognizerDelegate, RCRTCStatusReportDelegate, RTCServiceDelegate,KSWhiteboardControlDelegate, ClassVideoListViewDelegate,ClassroomTimerManagerDelegate>

@property (nonatomic, strong) ClassTitleView *titleView;
@property (nonatomic, strong) ClassroomMainContainer *containerView;
@property (nonatomic, strong) ClassVideoListView *videoListView;
@property (nonatomic, strong) ChatAreaView *chatAreaView;
@property (nonatomic, strong) KSWhiteboardControl *wBoardCtrl;
@property (nonatomic, strong) MBProgressHUD *hud;
@property (nonatomic, strong) NSMutableArray<NSNumber*>* packetLossStore;

@property (nonatomic, strong) UILabel *networkLabel;

@property (nonatomic, assign) BOOL cancleAlert;

@property (nonatomic, assign) BOOL isQuitRoom; // 是否正在退出房间

@property (nonatomic, assign) BOOL hasShowAlert;

@property (nonatomic, assign) BOOL isSwitchLine; // 是否线路切换

@property (nonatomic, assign) BOOL isChat;

/** 定时器 */
@property (nonatomic, strong) NSTimer *timer;

/** 定时器多少秒循环一次 */
@property (nonatomic, assign) float timerLength;
/** 当前是否播放状态 */
@property (nonatomic, assign) BOOL isPlay;
/** 当前发出的声次数（用来判断播放"嘀"还是"咚"声音） */
@property (nonatomic, assign) int currentTotalNo;

/** 节拍类型 */
@property (nonatomic, assign) KSMetronomeType metronomeStat;

/** 播放速率，范围40～240 */
@property (nonatomic, assign) int rate;
// 播放节拍器音量
@property (nonatomic, assign) NSInteger volume;
/** 记录上一次的频率 */
@property (nonatomic, assign) int lastRate;

@property (nonatomic, strong) NSString *pathDing;

@property (nonatomic, strong) NSString *pathDong;

@property (nonatomic, strong) KSTipsView *tipsView;

@property (nonatomic, strong) ClassroomTimerManager *timeManager;

@property (nonatomic, strong) UILabel *timeLabel;

@property (nonatomic, strong) KSNormalAlertView *alertView;

@end

@implementation NewClassRoomViewController

#pragma mark - Life cycle

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.zh_statusBarHidden = YES;
    // 切换到横屏
    AppDelegate* delegate = (AppDelegate*)[UIApplication sharedApplication].delegate;
    delegate.allowAutoRotate = YES;
    [UIDevice switchNewOrientation:UIInterfaceOrientationLandscapeRight];
    [[UIApplication sharedApplication] setIdleTimerDisabled:YES];
    [RCRTCEngine sharedInstance].statusReportDelegate = self;
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    if (_isPlay) {
        [self pause];
        [self removeAll];
    }
    // 竖屏
    AppDelegate* delegate = (AppDelegate*)[UIApplication sharedApplication].delegate;
    delegate.allowAutoRotate = NO;
    [UIDevice switchNewOrientation:UIInterfaceOrientationPortrait];
    [[UIApplication sharedApplication] setIdleTimerDisabled:NO];
    self.zh_statusBarHidden = NO;
    [self hideAlertView];
    [self judgeShowAlert];
}

- (void)hideAlertView {
    if (self.alertView && self.alertView.isShow) {
        [self.alertView dismissAlertView];
    }
}

- (void)judgeShowAlert {
    if (self.cancleAlert || self.hasShowAlert) {
        return;
    }
    if (![NSString isEmptyString:self.classEndTime]) {
        NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
        dateFormatter.timeZone = [NSTimeZone systemTimeZone];
        [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
        NSDate *endDate = [dateFormatter dateFromString:self.classEndTime];
        NSDate *currentDate = [NSDate date];
        NSTimeInterval timeInterval = [currentDate timeIntervalSinceDate:endDate];
        if (timeInterval >= 0) { // 课程结束弹出评价
            self.hasShowAlert = YES;
            [[NSNotificationCenter defaultCenter] postNotificationName:@"showEvaluateAlert" object:self.courseId];
        }
    }
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    self.view.backgroundColor = HexRGB(0x35343e);
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(leaveRoomAction) name:@"classroomLogout" object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(quitRoomAction) name:@"classroomQuit" object:nil];
    
    // 切换到横屏
    AppDelegate* delegate = (AppDelegate*)[UIApplication sharedApplication].delegate;
    delegate.allowAutoRotate = YES;
    [UIDevice switchNewOrientation:UIInterfaceOrientationLandscapeRight];
    [self addSubviews];
    [self bindDelegates];
    [self publishStream];
    [self renderMainContainerView];
    self.timeManager.isDisplay = YES;
    [[RTCService sharedInstance] useSpeaker:YES];
    UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
    [self.view addGestureRecognizer:tapGes];
    tapGes.delegate = self;
    [self showRoleHud];
    self.isQuitRoom = NO;
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(backgroundQuitRoomAction) name:@"backgroundQuit" object:nil];
}

- (void)backgroundQuitRoomAction {
    self.isQuitRoom = YES;
    self.isSwitchLine = NO;
    [[LoginHelper sharedInstance] logout:^{
    } error:^(RCRTCCode code) {
    }];
    
    self.cancleAlert = YES;
}

#pragma mark ----- 账号异地登陆
- (void)leaveRoomAction {
    [self showMessage:@"该账号在其他设备上登录"];
    self.isQuitRoom = YES;
    self.isSwitchLine = NO;
    [[LoginHelper sharedInstance] logout:^{
    } error:^(RCRTCCode code) {
    }];
    self.cancleAlert = YES;
    [[NSNotificationCenter defaultCenter] postNotificationName:@"backLoginView" object:nil];
}

- (void)quitRoomAction {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        self.isQuitRoom = YES;
        self.isSwitchLine = NO;
        [[LoginHelper sharedInstance] logout:^{
        } error:^(RCRTCCode code) {
        }];
        self.cancleAlert = YES;
        [[NSNotificationCenter defaultCenter] postNotificationName:@"showOtherLoginAlert" object:nil];
    });
}

// 提示信息
- (void)showMessage:(NSString *)message {
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    [self.view bringSubviewToFront:hud];
    hud.removeFromSuperViewOnHide =YES;
    hud.mode = MBProgressHUDModeText;
    hud.label.text = message;
    hud.minSize = CGSizeMake(132.f, 60.0f);
    hud.label.textColor = [UIColor whiteColor];
    hud.bezelView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.bezelView.backgroundColor = [UIColor colorWithHexString:@"#000000" alpha:0.8];
    [hud hideAnimated:YES afterDelay:2];
}


- (void)tapGesture: (UITapGestureRecognizer *)tapGesture {
    self.titleView.isDisplay = YES;
    self.timeManager.isDisplay = YES;
    [self hideChatAreaView];
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    if ([touch.view isDescendantOfView:self.chatAreaView] || [touch.view isDescendantOfView:self.videoListView]) {
        return NO;
    }
    if ([touch.view isDescendantOfView:self.wBoardCtrl.wbView] || [touch.view isDescendantOfView:self.containerView]) {
        [self tapGesture:(UITapGestureRecognizer *)gestureRecognizer];
    }
    return YES;
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
}

- (void)showRoleHud {
    Role role =  [ClassroomService sharedService].currentRoom.currentMember.role;
    if(role == RoleAudience) {
        [self.tipsView showTipsMessage:@"你当前身份是旁听人，其他人看/听不见你" inView:self.view];
        
        [self performSelector:@selector(showOnlyYouHUD) withObject:nil afterDelay:5.0f];
    }else{
        [self showOnlyYouHUD];
    }
}

- (void)showOnlyYouHUD {
    if ([ClassroomService sharedService].currentRoom.memberList.count == 1) {
        [self.tipsView showTipsMessage:@"当前课堂只有你一人，你可以等待或离开" inView:self.view];
    }
}

#pragma mark --- ClassTitleViewDelegate
- (void)classTitleView:(UIButton *)button didTapAtTag:(ClassTitleViewActionTag)tag {
    [self.chatAreaView.inputBarControl setInputBarStatus:InputBarControlStatusDefault];
    switch (tag) {
        case ClassTitleViewActionTagMicrophone:
        {
            if (button.selected == NO) {
                if (self.alertView && self.alertView.isShow) {
                    [self.alertView dismissAlertView];
                }
                self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认关闭麦克风吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
                } confirm:^{
                    button.selected = YES;
                    [[ClassroomService sharedService] enableDevice:NO withType:DeviceTypeMicrophone];
                }];

            }
            else {
                button.selected = NO;
                [[ClassroomService sharedService] enableDevice:YES withType:DeviceTypeMicrophone];
            }
        }
            break;
        case ClassTitleViewActionTagCamera:
        {
            if (button.selected == NO) {
                if (self.alertView && self.alertView.isShow) {
                    [self.alertView dismissAlertView];
                }
                self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认关闭摄像头吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
                } confirm:^{
                    button.selected = YES;
                    [[ClassroomService sharedService] enableDevice:NO withType:DeviceTypeCamera];
                }];
            }
            else {
                button.selected = NO;
                [[ClassroomService sharedService] enableDevice:YES withType:DeviceTypeCamera];
            }
        }
            break;
        case ClassTitleViewActionTagSwitchLine:  // 切换线路
        {
            MJWeakSelf;
            if (self.alertView && self.alertView.isShow) {
                [self.alertView dismissAlertView];
            }
            self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认切换线路吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            } confirm:^{
                [weakSelf restartRoom];
            }];
        }
            break;
        case ClassTitleViewActionTagSwitchCamera:
        {
            [[RTCService sharedInstance] switchCamera];
        }
            break;
        case ClassTitleViewActionTagChat:
        {
            button.selected = !button.selected;
            button.selected ? [self showChatAreaView] : [self hideChatAreaView];
            self.isChat = button.selected;
        }
            break;
        case ClassTitleViewActionTagHangup:
        {
            MJWeakSelf;
            if (self.alertView && self.alertView.isShow) {
                [self.alertView dismissAlertView];
            }
            self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认退出课堂吗？" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            } confirm:^{
                weakSelf.isQuitRoom = YES;
                SealClassLog(@"ActionTagHangup");
                weakSelf.hud = [self createProgressHUD];
                [[LoginHelper sharedInstance] logout:^{
                } error:^(RCRTCCode code) {
                }];
            }];
        }
            break;
        default:
            break;
    }
}

#pragma mark ---- ClassroomTimerManager delegate
- (void)formatTime:(NSString *)timeString {
    self.timeLabel.text = timeString;
}

- (void)timeLabelAddAnimation:(CABasicAnimation *)animation {
    self.timeLabel.textColor = HexRGB(0x2DC7AA);
    [self.timeLabel.layer addAnimation:animation forKey:nil];
}

- (void)hiddenTitleView {
    [self.titleView hiddenView];
}


- (void)quitClassroomNotifer {
    // 课程结束后15分钟自动退出房间 连堂课不退出（对内）
    if (self.isQuitRoom == NO) {
        self.isQuitRoom = YES;
        // 退出房间
        [self.tipsView showTipsMessage:@"课程已结束" inView:self.view];
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            // 课程结束退出房间
            SealClassLog(@"ClassEnd!");
            self.hud = [self createProgressHUD];
            [[LoginHelper sharedInstance] logout:^{
            } error:^(RCRTCCode code) {
            }];
        });
    }
}


#pragma mark ------ 退出RTC房间并重新加入
- (void)restartRoom {
    self.isSwitchLine = YES;
    if (_isPlay) {
        [self pause];
        [self removeAll];
    }
    self.hud = [self createProgressHUD];
    [self.wBoardCtrl.wbView leaveRoom];
    [[LoginHelper sharedInstance] logout:^{
    } error:^(RCRTCCode code) {
    }];
}

- (void)reJoinRTCRoom {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        NSString *roomId = [LoginHelper sharedInstance].roomId;
        NSString *userName = [LoginHelper sharedInstance].userName;
        [[ClassroomService sharedService] joinClassroom:roomId userName:userName isAudience:NO success:^(Classroom * _Nonnull classroom) {
            self.isSwitchLine = NO;
            [self restartRTCConnection];
        } error:^(ErrorCode errorCode, NSString * _Nonnull message) {
            [self.tipsView showTipsMessage:@"切换线路失败!" inView:self.view];
            [self.hud hideAnimated:YES];
            self.isSwitchLine = NO;
        }];
    });
}

- (void)restartRTCConnection {
    
    [[RTCService sharedInstance] joinRongRTCRoom:[ClassroomService sharedService].currentRoom.roomId success:^(RCRTCRoom * _Nonnull room) {
        [self.hud hideAnimated:YES];
        [self.tipsView showTipsMessage:@"切换线路成功" inView:self.view];
        // 重置UI 重新发布音视频流
        [LocalRenderManager shareInstance].hadRenderMainView = NO;
        self.timeManager.isDisplay = YES;
        [self publishStream];
        [self bindDelegates];
        [self.titleView refreshTitleView];
        [self.containerView refreshToolView];
        [self.hud hideAnimated:YES];
        [RCRTCEngine sharedInstance].statusReportDelegate = self;
        [[RTCService sharedInstance] useSpeaker:YES];
        [self renderMainContainerView];
        [self.videoListView reloadVideoList];
        
    } error:^(RCRTCCode code) {
        [self.hud hideAnimated:YES];
        [self.tipsView showTipsMessage:@"切换线路失败!" inView:self.view];
    }];
}

#pragma mark - ClassroomDelegate
- (void)roomDidLeave {
    NSLog(@"roomDidLeave");
    if (_isSwitchLine) {
        if ([RTCService sharedInstance].rtcRoom) {
            [[KSRemoteUserManager shareInstance] removeAllUser];
            [[RTCService sharedInstance] leaveRongRTCRoom:[ClassroomService sharedService].currentRoom.roomId success:^{
                [self reJoinRTCRoom];
            } error:^(RCRTCCode code) {
                [self.hud hideAnimated:YES];
                [self.tipsView showTipsMessage:@"切换线路失败!" inView:self.view];
                self.isSwitchLine = NO;
            }];
        }
    }
    else {
        [[KSRemoteUserManager shareInstance] removeAllUser];
        [[RCIMClient sharedRCIMClient] clearMessagesUnreadStatus:ConversationType_GROUP targetId:[ClassroomService sharedService].currentRoom.roomId];
        int unreadMsgCount = [[RCIMClient sharedRCIMClient] getUnreadCount:@[
            @(ConversationType_PRIVATE), @(ConversationType_APPSERVICE), @(ConversationType_GROUP),@(ConversationType_SYSTEM)
        ]];
        if (unreadMsgCount >= 1) {
            [(KSTabBarViewController *)self.tabBarController noteNewsWithIndex:2 count:unreadMsgCount];
        } else {
            [(KSTabBarViewController *)self.tabBarController clearNewsWithIndex:2];
        }
        // 关闭白板连接
        [self.wBoardCtrl.wbView.sdk setCommonCallbackDelegate:nil];
        [self.wBoardCtrl.wbView.room disconnect:^{
        }];
        if ([RTCService sharedInstance].rtcRoom) {
            [[RTCService sharedInstance] leaveRongRTCRoom:[ClassroomService sharedService].currentRoom.roomId success:^{
            } error:^(RCRTCCode code) {
            }];
        }
        [self dismissClassroom];
    }
}

- (void)dismissClassroom {
    [self.hud hideAnimated:YES];
    [ClassroomService sharedService].currentRoom = nil;
    [self dismissViewControllerAnimated:NO completion:^{
        [self.timeManager stopDurationTimer];
        [self.timeLabel.layer removeAllAnimations];
    }];
}

- (void)memberDidJoin:(RoomMember *)member {
    NSLog(@"memberDidJoin %@",member);
    if(member.role != RoleAudience) {
        [self.videoListView reloadVideoList];
    }
    if (member.role == RoleTeacher) {
        [self.tipsView showTipsMessage:[NSString stringWithFormat:@"老师%@已经进入教室", member.name] inView:self.view];
        if (_isPlay) {
            [self pause];
            [self removeAll];
            [[RTCService sharedInstance] playAllRemoteUserAudioStream];
        }
        if ([ClassroomService sharedService].currentRoom.isPlaySong) {
            [[RCRTCAudioMixer sharedInstance] stop];
            [ClassroomService sharedService].currentRoom.isPlaySong = NO;
            [[RTCService sharedInstance] playAllRemoteUserAudioStream];
        }
    }
}

- (void)memberDidLeave:(RoomMember *)member {
    NSLog(@"memberDidLeave %@",member);
    // 此处移除
    [[KSRemoteUserManager shareInstance] removeUser:member.userId];
    
    if(member.role != RoleAudience) {
        [self.videoListView reloadVideoList];
    }
    if (member.role == RoleTeacher) {
        // 老师退出房间后，学生如果在节拍器播放时停止节拍器
        if (_isPlay) {
            [self pause];
            [self removeAll];
            [[RTCService sharedInstance] playAllRemoteUserAudioStream];
        }
        if ([ClassroomService sharedService].currentRoom.isPlaySong) {
            [[RCRTCAudioMixer sharedInstance] stop];
            [ClassroomService sharedService].currentRoom.isPlaySong = NO;
            [[RTCService sharedInstance] playAllRemoteUserAudioStream];
        }
    }
}

- (void)memberDidKick:(RoomMember *)member {
    NSLog(@"memberDidKick %@",member);
    [[KSRemoteUserManager shareInstance] removeUser:member.userId];
    if ([ClassroomService sharedService].currentRoom.currentMember.role == RoleTeacher) {
        [self.tipsView showTipsMessage:[NSString stringWithFormat:@"你已将%@移出课堂", member.name] inView:self.view];
    }
    [self.videoListView reloadVideoList];
    if (self.containerView.member.role == member.role) {
        [self.containerView cancelRenderView];
    }
}

- (void)errorDidOccur:(ErrorCode)code {
    NSLog(@"errorDidOccur %@",@(code));
    [self.hud hideAnimated:YES];
    if (code != ErrorCodeSuccess) {
        if (code == ErrorCodeOverMaxUserCount) {
            [self.tipsView showTipsMessage:@"超过人数限制" inView:self.view];
        }else {
            [self.tipsView showTipsMessage:@"操作失败，请稍后再试" inView:self.view];
        }
    }
}

- (void)deviceDidEnable:(BOOL)enable type:(DeviceType)type forUser:(RoomMember *)member operator:(nonnull NSString *)operatorId {
    NSLog(@"deviceDidEnable devicetype:%@ enable:%@ memeber:%@",@(type),@(enable),member);
    RoomMember *curMember = [ClassroomService sharedService].currentRoom.currentMember;
    NSString *hudMessage = @"";
    //只有老师和自己才有提示
    if (curMember.role == RoleTeacher && ![curMember.userId isEqualToString:operatorId]) {
        if (type == DeviceTypeCamera) {
            hudMessage = !enable ? [NSString stringWithFormat:NSLocalizedStringFromTable(@"SetCameraClose", @"SealClass", nil),member.name] : [NSString stringWithFormat:NSLocalizedStringFromTable(@"SetCameraOpen", @"SealClass", nil),member.name];
        } else if (type == DeviceTypeMicrophone) {
            hudMessage = !enable ? [NSString stringWithFormat:NSLocalizedStringFromTable(@"SetMicorophoneClose", @"SealClass", nil),member.name] : [NSString stringWithFormat:NSLocalizedStringFromTable(@"SetMicorophoneOpen", @"SealClass", nil),member.name];
        }
        else if (type == DeviceTypeMusicMode) {
            hudMessage = !enable ? [NSString stringWithFormat:@"%@的音乐模式已关闭",member.name] : [NSString stringWithFormat:@"%@的音乐模式已开启",member.name];
        }
        [self.tipsView showTipsMessage:hudMessage inView:self.view];
    } else {
        if ([curMember.userId isEqualToString:member.userId]) {
            if (type == DeviceTypeCamera) { // 摄像头
                // 非自己操作才需要做提示
                if(![curMember.userId isEqualToString:operatorId]){
                    hudMessage = !enable ? @"老师已关闭你的摄像头" : NSLocalizedStringFromTable(@"CameraOpend", @"SealClass", nil);
                    [self.tipsView showTipsMessage:hudMessage inView:self.view];
                }
                
                [self.containerView refreshToolView];
                [[RTCService sharedInstance] setCameraDisable:!enable];
            } else if (type == DeviceTypeMicrophone) { // 麦克风
                // 非自己操作才需要做提示
                if(![curMember.userId isEqualToString:operatorId]){
                    hudMessage = !enable ? @"老师已关闭你的麦克风" : NSLocalizedStringFromTable(@"MicorophoneOpend", @"SealClass", nil);
                    [self.tipsView showTipsMessage:hudMessage inView:self.view];
                }
                
                [self.containerView refreshToolView];
                [[RTCService sharedInstance] setMicrophoneDisable:!enable];
            }
            else if (type == DeviceTypeMusicMode) {
                // 非自己操作才需要做提示
                if(![curMember.userId isEqualToString:operatorId]) {
//                    hudMessage = !enable ? NSLocalizedStringFromTable(@"老师关闭了你的音乐模式", @"SealClass", nil) : NSLocalizedStringFromTable(@"音乐模式已打开", @"SealClass", nil);
//                    [self.tipsView showTipsMessage:hudMessage inView:self.view];
                }
                
                [self.containerView refreshToolView];
                [self changeModeAction:enable];
            }
            else if (type == DeviceTypeHandup) {
//                if ([curMember.userId isEqualToString:operatorId]) {
//                    if (enable) {
//                        [self.tipsView showTipsMessage:@"您已举手" inView:self.view];
//                    }
//                }
            }
            else if (type == DeviceTypeExamSong) {
                if (enable) {
                    // 播放伴奏
                    [self playSongAction];
                }
                else {
                    // 停止伴奏
                    [[RCRTCAudioMixer sharedInstance] stop];
                    [self playSongEnable:NO];
                }
                
            }
            else if (type == DeviceTypeAccompany || type == DeviceTypeMusicScore) { // 原音或伴奏
                if (enable) {
                    // 检测是否存在该曲目
                    RoomMember *member = [ClassroomService sharedService].currentRoom.currentMember;
                    NSString *songId = [NSString stringWithFormat:@"%d", member.musicScoreAccompanimentId];
                    NSString *songUrl = member.url;
                    NSString *accompnayUrl = member.mp3Url;
                    // 播放伴奏
                    [self checkAccompnayDownloadNotifer:songUrl accompanyUrl:accompnayUrl songId:songId needPlay:YES];
                }
                else {
                    // 停止伴奏
                    [[RCRTCAudioMixer sharedInstance] stop];
                    [self playSongEnable:NO];
                }
            }
            
        }
    }
    if ([ClassroomService sharedService].currentRoom.currentDisplayType != DisplayWhiteboard && type == DeviceTypeCamera) {
        // 延迟调用，防止刷新出现灰屏
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [self renderMainContainerView];
        });
    }
    [self.titleView refreshTitleView];
    [self.containerView refreshToolView];
}

- (void)playSongAction {
    
    if ([ClassroomService sharedService].currentRoom.isPlaySong || [ClassroomService sharedService].currentRoom.isPlayBeat) {
        // 停止伴奏
        [[RCRTCAudioMixer sharedInstance] stop];
    }
    
    // 获取路径 播放伴奏
    RoomMember *member = [ClassroomService sharedService].currentRoom.currentMember;
    NSString *songId = [NSString stringWithFormat:@"%d", member.musicScoreAccompanimentId];
    
    NSDictionary *fileDic = UserDefaultObjectForKey(KSExamSongFileKey);
    NSDictionary *storeDic = [fileDic dictionaryValueForKey:songId];
    NSString *fileName = nil;
    NSString *filePath = nil;
    if (member.accompanimentPlayStatus) {
        fileName = [[storeDic dictionaryValueForKey:@"accompany"] stringValueForKey:@"fileName"];
        filePath = [self getFilePathWithName:fileName];
    }
    else if (member.playStatus) {
        fileName = [[storeDic dictionaryValueForKey:@"music"] stringValueForKey:@"fileName"];
        filePath = [self getFilePathWithName:fileName];
    }
    // 判断文件是否存在
    NSLog(@"-------songid %@", songId);
    NSLog(@"------filePath %@", filePath);
    NSFileManager *fileManager = [NSFileManager defaultManager];
    if ([fileManager fileExistsAtPath:filePath] && ![NSString isEmptyString:fileName]) {
        NSInteger soundVolome = [ClassroomService sharedService].currentRoom.soundVolume;
        NSLog(@"soundVolome------%zd",soundVolome);
        [[RCRTCAudioMixer sharedInstance] stop];
        @try {
            // 混音伴奏音量
            [RCRTCAudioMixer sharedInstance].mixingVolume = soundVolome;
            [RCRTCAudioMixer sharedInstance].playingVolume = soundVolome;
            [[RCRTCAudioMixer sharedInstance] startMixingWithURL:[NSURL fileURLWithPath:filePath] playback:YES mixerMode:RCRTCMixerModeMixing loopCount:NSUIntegerMax];
        } @catch (NSException *exception) {
            NSLog(@"%@", exception);
        } @finally {
            
        }
        
    }
    [self playSongEnable:YES];
}

- (void)playSongEnable:(BOOL)enable {
    NSString *teacherId = [ClassroomService sharedService].currentRoom.teacher.userId;
    if (enable) {
        if ([ClassroomService sharedService].currentRoom.isPlayBeat) {
            [self pause];
            [self removeAll];
        }
        [ClassroomService sharedService].currentRoom.isPlaySong = YES;
        [[RTCService sharedInstance] unPlayRemoteUserAudioStreamExcept:teacherId];
    }
    else {
        [ClassroomService sharedService].currentRoom.isPlaySong = NO;
        [[RTCService sharedInstance] playAllRemoteUserAudioStream];
    }
}

// 请求用户打开设备，助教关闭用户设备没有回调。
- (void)deviceDidInviteEnable:(DeviceType)type ticket:(NSString *)ticket {
    NSLog(@"deviceDidInviteEnable devicetype:%@",@(type));
    if (type == DeviceTypeCamera) {
        if (self.alertView && self.alertView.isShow) {
            [self.alertView dismissAlertView];
        }
        self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"老师邀请你打开摄像头" leftTitle:@"拒绝" rightTitle:@"同意" cancel:^{
            [[ClassroomService sharedService] rejectEnableDevice:type];
        } confirm:^{
            [[ClassroomService sharedService] approveEnableDevice:type];
        }];
    }else if (type == DeviceTypeMicrophone) {
        [self.tipsView showTipsMessage:@"老师开启了你的麦克风" inView:self.view];
        [[ClassroomService sharedService] approveEnableDevice:type];
    }
    else if (type == DeviceTypeExamSong) { // 接口自动处理同意
    }
    else if (type == DeviceTypeAccompany || type == DeviceTypeMusicScore) { // 伴奏接口自动处理成同意
        
    }
    else {
        [[ClassroomService sharedService] approveEnableDevice:type];
    }
}

//只有助教能收到这个回调,可以不在这里处理文字，因为设备的回调还会走
- (void)deviceInviteEnableDidApprove:(RoomMember *)member type:(DeviceType)type {
    NSLog(@"deviceInviteEnableDidApprove devicetype:%@ member:%@ ",@(type),member);
}

//拒绝只有助教能收到这个回调，且只走这个回调
- (void)deviceInviteEnableDidReject:(RoomMember *)member type:(DeviceType)type {
    NSLog(@"deviceInviteEnableDidReject devicetype:%@ member:%@ ",@(type),member);
    [self.tipsView showTipsMessage:[NSString stringWithFormat:@"%@拒绝了你的邀请",member.name] inView:self.view];
}

#pragma mark ----- 伴奏下载
- (void)accompanyDownloadCallback:(NSString *)songUrl accompanyUrl:(NSString *)accompnayUrl songId:(NSString *)songId {
    [self checkAccompnayDownloadNotifer:songUrl accompanyUrl:accompnayUrl songId:songId needPlay:NO];
}


- (void)checkAccompnayDownloadNotifer:(NSString *)songUrl accompanyUrl:(NSString *)accompnayUrl songId:(NSString *)songId needPlay:(BOOL)isNeedPlay {
    
    if ([self checkSongHasSave:songId songUrl:songUrl accompanyUrl:accompnayUrl]) { // 判断文件是否已下载
        [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:YES];
        if (isNeedPlay) {
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                [self  playSongAction];
            });
        }
    }
    else { // 如果不存在则去下载
        if (![NSString isEmptyString:songUrl]) {
            [self downloadSongAction:songUrl songId:songId isAccompany:NO success:^{
                
                if (![NSString isEmptyString:accompnayUrl]) {
                    
                    [self downloadSongAction:accompnayUrl songId:songId isAccompany:YES success:^{
                        [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:YES];
                        if (isNeedPlay) {
                            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                                [self  playSongAction];
                            });
                        }
                    } faliure:^{
                        [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:NO];
                    }];
                }
                else {
                    [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:YES];
                    if (isNeedPlay) {
                        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                            [self  playSongAction];
                        });
                    }
                }
            } faliure:^{
                [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:NO];
            }];
        }
        else if (![NSString isEmptyString:accompnayUrl]){
            
            [self downloadSongAction:accompnayUrl songId:songId isAccompany:YES success:^{
                [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:YES];
                if (isNeedPlay) {
                    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                        [self  playSongAction];
                    });
                }
            } faliure:^{
                [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:NO];
            }];
        }
        else { // 原声和伴奏均为空
            [[ClassroomService sharedService] adjustAccompanySongNotifer:songId status:NO];
        }
    }
}

- (void)downloadSongAction:(NSString *)url songId:(NSString *)songId isAccompany:(BOOL)isAccompany success:(void(^)(void))success faliure:(void(^)(void))faliure {
    [KSNetworkingManager downloadFileRequestWithFileUrl:url progress:^(int64_t bytesRead, int64_t totalBytes) {
        NSLog(@"%.2f", bytesRead *1.0 / totalBytes);
    } success:^(NSURL * _Nonnull fileUrl) {
        if ([self saveUrlWithFilePath:fileUrl songUrl:url songId:songId isAccompany:isAccompany]) {
            success();
        }
        else {
            faliure();
        }
    } faliure:^(NSError * _Nonnull error) {
        faliure();
    }];
}


- (BOOL)saveUrlWithFilePath:(NSURL *)fileUrl songUrl:(NSString *)songUrl songId:(NSString *)songId isAccompany:(BOOL)isAccompany {
    NSData *sourceData = [NSData dataWithContentsOfURL:fileUrl];
    NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
    NSString *filePath= [cachePath stringByAppendingPathComponent:@"AccompanySong"];
    // 先创建子目录
    NSFileManager *fileManager = [NSFileManager defaultManager];
    if (![fileManager fileExistsAtPath:filePath]) {
        [fileManager createDirectoryAtPath:filePath withIntermediateDirectories:YES attributes:nil error:nil];
    }else{
        NSLog(@"已创建文件夹");
    }
    NSString *fileName = [[songUrl componentsSeparatedByString:@"/"] lastObject];
    NSString *tempPath = [filePath stringByAppendingPathComponent:fileName];
    BOOL success = [sourceData writeToFile:tempPath atomically:NO];
    if (success) {
        NSDictionary *fileDic = UserDefaultObjectForKey(KSExamSongFileKey); // 只能存NSDictionary
        NSMutableDictionary *storeDic = [NSMutableDictionary dictionary];
        if (!fileDic) {
            fileDic = [NSMutableDictionary dictionary];
        }
        else {
            storeDic = [NSMutableDictionary dictionaryWithDictionary:[fileDic dictionaryValueForKey:songId]];
        }
        
        NSDictionary *parm = @{@"url" : songUrl,
                               @"fileName" : fileName};
        NSString *keyString = isAccompany ? @"accompany" :@"music";
        [storeDic setValue:parm forKey:keyString];
        
        NSMutableDictionary *saveDic = [NSMutableDictionary dictionaryWithDictionary:fileDic];
        [saveDic setValue:storeDic forKey:songId];
        
        UserDefaultSetObjectForKey(saveDic, KSExamSongFileKey);
    }
    return success;
}

- (NSString *)getFilePathWithName:(NSString *)fileName {
    NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
    NSString *filePath= [cachePath stringByAppendingPathComponent:@"AccompanySong"];
    return [filePath stringByAppendingPathComponent:fileName];;
}

- (BOOL)checkSongHasSave:(NSString *)songId songUrl:(NSString *)songUrl accompanyUrl:(NSString *)accompanyUrl {
    BOOL hasSaveFile = NO;
    NSMutableDictionary *fileDic = UserDefaultObjectForKey(KSExamSongFileKey);
    NSDictionary *storeDic = [fileDic dictionaryValueForKey:songId];
    NSFileManager *fileManager = [NSFileManager defaultManager];
    if (![NSString isEmptyString:songUrl]) {
        NSString *fileName = [[storeDic dictionaryValueForKey:@"music"] stringValueForKey:@"fileName"];
        NSString *filePath = [self getFilePathWithName:fileName];
        if ([[fileDic allKeys] containsObject:songId] && [fileManager fileExistsAtPath:filePath] && ![NSString isEmptyString:fileName]) {
            hasSaveFile = YES;
        }
        else {
            hasSaveFile = NO;
        }
    }
    if (![NSString isEmptyString:accompanyUrl]) {
        NSString *fileName = [[storeDic dictionaryValueForKey:@"accompany"] stringValueForKey:@"fileName"];
        NSString *filePath = [self getFilePathWithName:fileName];
        if ([[fileDic allKeys] containsObject:songId] && [fileManager fileExistsAtPath:filePath] && ![NSString isEmptyString:fileName]) {
            hasSaveFile = YES;
        }
        else {
            hasSaveFile = NO;
        }
    }
    return hasSaveFile;
}

#pragma mark - private method
- (void)bindDelegates {
    self.titleView.delegate = self;
    [[RTCService sharedInstance] setRTCRoomDelegate:self];
    [RTCService sharedInstance].delegate = self;
    [ClassroomService sharedService].classroomDelegate = self;
}

- (void)addSubviews {
    [self.view addSubview:self.containerView];
    [self.view addSubview:self.timeLabel];
    [self.containerView bringSubviewToFront:self.timeLabel];
    [self.view addSubview:self.titleView];
    [self wBoardCtrl];
    [self chatAreaView];
    [self.view addSubview:self.videoListView];
    [self.view bringSubviewToFront:self.titleView];
}

- (void)showChatAreaView{
    [self.view addSubview:self.chatAreaView];
}

- (void)hideChatAreaView{
    [UIView animateWithDuration:0.2 animations:^{
        self.titleView.chatBtn.selected = NO;
        [self.chatAreaView removeFromSuperview];
    }];
}

- (CGRect)mainContainerViewFrame {
    CGFloat x = iPhoneXSafeTopMargin;
    CGFloat y = 0;
    CGFloat width = UIScreenWidth - x - iPhoneXSafeBottomMargin;
    CGFloat height = UIScreenHeight - y;
    return CGRectMake(x, y, width, height);
}


- (void)displayWhiteboard:(NSString *)boardId {
    CGRect frame = [self getWBoardFrame];
    [self.wBoardCtrl loadWBoardWithFrame:frame name:boardId];
    for (UIView * view in self.view.subviews) {
        if ([view isKindOfClass:[ChatAreaView class]]) {
            [self.view bringSubviewToFront:view];
        }
    }
    [self.view bringSubviewToFront:self.timeLabel];
}

- (CGRect)getWBoardFrame {
    CGRect mainVideoFrame = self.containerView.currentVideoFrame;
    mainVideoFrame.origin.x += iPhoneXSafeTopMargin;
    mainVideoFrame.origin.y = 10;
    return mainVideoFrame;
}


- (void)publishStream {
    if ([ClassroomService sharedService].currentRoom.currentMember.role != RoleAudience) {
        [[RTCService sharedInstance] publishLocalUserDefaultAVStream];
    }
}

- (void)renderMainContainerView {
    self.titleView.onShowLabel.hidden = YES;
    RoomMember *teacher = [ClassroomService sharedService].currentRoom.teacher;
    if ([ClassroomService sharedService].currentRoom.currentDisplayType == DisplayTypeStudent) {
        // 将之前订阅的流切换成小流
        [self changeLastDisplayToTinyStream];
        // 有打开的屏幕
        for (RoomMember *displayMember in [ClassroomService sharedService].currentRoom.memberList) {
            if ([displayMember.userId isEqualToString:[ClassroomService sharedService].currentRoom.currentDisplayURI]) {
                if ([displayMember.userId isEqualToString:[ClassroomService sharedService].currentRoom.currentMember.userId]) {
                    self.titleView.onShowLabel.hidden = NO;
                    // 重置举手状态
                    [ClassroomService sharedService].currentRoom.currentMember.handUpOn = NO;
                    [self.containerView refreshToolView];
                }
                [self.wBoardCtrl hideBoard];
                [self.containerView containerViewRenderView:displayMember];
                [self.videoListView showTeacherPrompt:NO];
                break;
            }
        }
        
    }
    else {
        // 将之前订阅的流切换成小流
        [self changeLastDisplayToTinyStream];
        
        if (([ClassroomService sharedService].currentRoom.currentDisplayType == DisplayTeacher && teacher.cameraEnable)) {
            NSLog(@"%@",[ClassroomService sharedService].currentRoom.currentDisplayURI);
            [self.wBoardCtrl hideBoard];
            [self.containerView containerViewRenderView:[ClassroomService sharedService].currentRoom.teacher];
            [self.videoListView showTeacherPrompt:YES];
        } else if ([ClassroomService sharedService].currentRoom.currentDisplayType == DisplayWhiteboard) {
            [self.containerView cancelRenderView];
            [self displayWhiteboard:[ClassroomService sharedService].currentRoom.currentDisplayURI];
            [self.videoListView showTeacherPrompt:NO];
        } else if (([ClassroomService sharedService].currentRoom.currentDisplayType == DisplaySharedScreen)) {
            [self.wBoardCtrl hideBoard];
            [[RTCService sharedInstance] renderUserSharedScreenOnView:self.containerView.videoView forUser:[ClassroomService sharedService].currentRoom.currentDisplayURI];
            // 分享视频
            [self.videoListView showTeacherPrompt:NO];
        } else {
            [self.wBoardCtrl hideBoard];
            [self.containerView cancelRenderView];
        }
    }
}

- (void)changeLastDisplayToTinyStream {
    RoomMember *lastMember = self.containerView.member;
    if (![NSString isEmptyString:lastMember.userId] && ![lastMember.userId isEqualToString:[ClassroomService sharedService].currentRoom.currentDisplayURI] && ![lastMember.userId isEqualToString:[ClassroomService sharedService].currentRoom.currentMember.userId]) {
        [[RTCService sharedInstance] exchangeRemoteUserAVStreamToTinySteam:lastMember.userId callback:^{
            
        }];
    }
}

- (void)whiteboardDidDisplay:(NSString *)boardId {
    NSLog(@"whiteboardDidDisplay %@ ",boardId);
    [self renderMainContainerView];
}

- (void)sharedScreenDidDisplay:(NSString *)userId {
    NSLog(@"sharedScreenDidDisplay %@ ",userId);
    [self renderMainContainerView];
}

- (void)studentDidDisplay:(NSString *)studentId {
    NSLog(@"studentDidDisplay %@", studentId);
    [self renderMainContainerView];

}
- (void)teacherDidDisplay {
    NSLog(@"teacherDidDisplay %@ ",[ClassroomService sharedService].currentRoom.teacher.userId);
    [self renderMainContainerView];
}


- (void)noneDidDisplay {
    NSLog(@"noneDidDisplay");
    [self renderMainContainerView];
}

- (void)checkNodePlayAndSongDownload {
    RoomMember *currentMember = [ClassroomService sharedService].currentRoom.currentMember;
    if (currentMember.enable) {
        // 延迟播放
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [self playNode:currentMember.enable rate:currentMember.rate beatType:currentMember.customType volume:currentMember.volume];
        });
    }
    else {
        
        if (currentMember.musicScoreAccompanimentId != 0) { // 如果有记录当前播放曲目
            BOOL needPlay = currentMember.accompanimentPlayStatus || currentMember.playStatus;
            [self checkAccompnayDownloadNotifer:currentMember.url accompanyUrl:currentMember.mp3Url songId:[NSString stringWithFormat:@"%d", currentMember.musicScoreAccompanimentId] needPlay:needPlay];
        }
    }
}

// 播放节拍器的回调
- (void)playNodeAction:(BOOL)enable userId:(NSString *)userId rate:(int)rate beatType:(BeatType)type volume:(NSInteger)volume {
    NSLog(@"playNodeAction userId:%@ enable:%@ beatType:%@ rate:%@ volume:%@",userId,@(enable),@(type), @(rate), @(volume));
    RoomMember *curMember = [ClassroomService sharedService].currentRoom.currentMember;
    if (curMember.role == RoleStudent) {
        if ([NSString isEmptyString:userId]) { // 操作全部
            [self playNode:enable rate:rate beatType:type volume:volume];
        }
        else {
            NSArray *userIdArray = [userId componentsSeparatedByString:@","];
            for (NSString *subUserId in userIdArray) {
                if ([curMember.userId isEqualToString:subUserId]) { // 操作个人
                    [self playNode:enable rate:rate beatType:type volume:volume];
                    break;
                }
            }
        }
    }
}

- (void)playNode:(BOOL)enable rate:(int)rate beatType:(BeatType)type volume:(NSInteger)volume {
    NSString *teacherId = [ClassroomService sharedService].currentRoom.teacher.userId;
    if (enable) {
        if ([ClassroomService sharedService].currentRoom.isPlaySong) { // 停止当前伴奏播放
            [ClassroomService sharedService].currentRoom.isPlaySong = NO;
            [[RCRTCAudioMixer sharedInstance] stop];
        }
        [self setMetronomeStat:type];
        [self setRate:rate];
        self.volume = volume;
        [self.videoListView updateBeatNode:type beat:rate];
        [self play];
        
        [[RTCService sharedInstance] unPlayRemoteUserAudioStreamExcept:teacherId];
    }
    else {
        [self pause];
        [self removeAll];
        [[RTCService sharedInstance] playAllRemoteUserAudioStream];
    }
}


#pragma mark --- RTCServiceDelegate  自己发布流成功回调
- (void)successPublishLocalStream {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        // 检测是否需要通知
        [self notiferTeacherRefreshSongStatus];
        
        [self checkNodePlayAndSongDownload];
    });
}

- (void)notiferTeacherRefreshSongStatus {
    NSArray *songArray = [ClassroomService sharedService].currentRoom.currentMember.songMessage;
    if (songArray.count) {
        [[ClassroomService sharedService] adjustAccompanySongNotifer:nil status:YES];
    }
}


#pragma mark - RongRTCRoomDelegate
- (void)didPublishStreams:(NSArray <RCRTCInputStream *>*)streams {
    
    NSString *displayUserId;
    if (([ClassroomService sharedService].currentRoom.currentDisplayType == DisplayTeacher)) {
        displayUserId = [ClassroomService sharedService].currentRoom.teacher.userId;
    }
    else if ([ClassroomService sharedService].currentRoom.currentDisplayType == DisplayTypeStudent) {
        displayUserId = [ClassroomService sharedService].currentRoom.currentDisplayURI;
    }
    // 当用户非正常退出的时候，如果再次进入需要重新订阅流
    RCRTCInputStream *firstStream = [streams lastObject];
    if ([[KSRemoteUserManager shareInstance] isContentUser:firstStream.userId]) {
        [[KSRemoteUserManager shareInstance] removeUser:firstStream.userId];
    }
    
    for (RCRTCInputStream *stream in streams) {
        if (stream.mediaType == RTCMediaTypeVideo) {
            if ([stream.userId isEqualToString:displayUserId]) {
                [self renderMainContainerView];
            }
            [self.videoListView updateUserVideo:stream.userId];
        }
    }
}

- (void)didConnectToStream:(RCRTCInputStream *)stream {
    if (stream.streamId && stream.streamId.length > 0) {
        NSLog(@"didConnectToStream userId:%@ streamID:%@",stream.userId,stream.streamId);
    }
}


#pragma mark ----- ClassVideoListViewDelegate
- (void)videoListView:(ClassVideoListView *)view didTap:(RoomMember *)member {
    self.titleView.isDisplay = YES;
    self.timeManager.isDisplay = YES;
    /*
    // 将视频投到主屏幕上
    NSString *currentDisplayUserId = member.userId;
    NSString *lastDisplayUserId = [ClassroomService sharedService].currentRoom.currentDisplayURI;
    
    if([currentDisplayUserId isEqualToString:lastDisplayUserId]) {
        [self.videoListView updateUserVideo:lastDisplayUserId];
        return;
    }
    DisplayType type = member.role == RoleTeacher ? DisplayTeacher : DisplayTypeStudent;
    [ClassroomService sharedService].currentRoom.currentDisplayURI = currentDisplayUserId;
    [ClassroomService sharedService].currentRoom.currentDisplayType = type;
    // 如果之前有切换成大流的视频
    if (![NSString isEmptyString:lastDisplayUserId] && ![lastDisplayUserId isEqualToString:[ClassroomService sharedService].currentRoom.currentMemberId]) {
        [[RTCService sharedInstance] exchangeRemoteUserAVStreamToTinySteam:lastDisplayUserId];
    }
    
    if(![[ClassroomService sharedService].currentRoom.currentMemberId isEqualToString:member.userId]) {
        // 记录当前播放音频的学生
        [ClassroomService sharedService].currentRoom.currentPlayUserId = currentDisplayUserId;
        [[RTCService sharedInstance] exchangeRemoteUserAVStreamToNomalSteam:member.userId];
    }
    [self renderMainContainerView];
     */
}

#pragma mark - Getters & setters
- (ClassroomTimerManager *)timeManager {
    if (!_timeManager) {
        _timeManager = [[ClassroomTimerManager alloc] initWithDelegate:self];
        
        _timeManager.autoClose = [ClassroomService sharedService].currentRoom.autoCloseFlag;
        // 统一15分钟关闭
        _timeManager.autoCloseNetworkRoomTime = [ClassroomService sharedService].currentRoom.autoCloseNetworkRoomTime;
    }
    return _timeManager;
}

- (UILabel *)timeLabel {
    if (!_timeLabel) {
        _timeLabel = [[UILabel alloc] initWithFrame:CGRectMake(kScreenWidth - self.videoListView.width - 40 - TTimeLableWidth - iPhoneXSafeBottomMargin, 25, TTimeLableWidth, TTimeLableHeight)];
        _timeLabel.font = [UIFont systemFontOfSize:16];
        _timeLabel.textAlignment = NSTextAlignmentRight;
        _timeLabel.textColor = HexRGB(0xFF5500);
    }
    return _timeLabel;
}
- (KSTipsView *)tipsView {
    if (!_tipsView) {
        _tipsView = [[KSTipsView alloc] initWithFrame:CGRectZero];
    }
    return _tipsView;
}

- (ClassTitleView *)titleView {
    if (!_titleView) {
        _titleView = [[ClassTitleView alloc] initWithFrame:CGRectMake(iPhoneXSafeTopMargin, 0, kScreenWidth - iPhoneXSafeTopMargin - iPhoneXSafeBottomMargin, TitleViewHeight)];
    }
    return _titleView;
}

- (ClassVideoListView *)videoListView {
    if(!_videoListView) {
        CGFloat width = 0.0f;
        CGFloat height = 0.0f;
        height = kScreenHeight - 10;
        width = height / 3.0f * 4;
        if (width > kScreenWidth - 160) {
            width = kScreenWidth - 160;
        }
        _videoListView = [[ClassVideoListView alloc] initWithFrame:CGRectMake(width + iPhoneXSafeTopMargin + 5, 10, kScreenWidth -  (width + 10 + iPhoneXSafeTopMargin) - iPhoneXSafeBottomMargin, height)];
        _videoListView.delegate = self;
    }
    return _videoListView;
}

- (ClassroomMainContainer *)containerView {
    if (!_containerView) {
        _containerView = [[ClassroomMainContainer alloc] initWithFrame:[self mainContainerViewFrame]];
        _containerView.delegate = self;
    }
    return _containerView;
}

- (ChatAreaView *)chatAreaView {
    if(!_chatAreaView) {
        _chatAreaView = [[ChatAreaView alloc] initWithFrame:CGRectMake(kScreenWidth - iPhoneXSafeBottomMargin - 300,0, 300, UIScreenHeight) conversationType:ConversationType_GROUP targetId:[ClassroomService sharedService].currentRoom.roomId];
    }
    return _chatAreaView;
}

- (KSWhiteboardControl *)wBoardCtrl {
    if (!_wBoardCtrl) {
        CGRect frame = [self getWBoardFrame];
        _wBoardCtrl = [[KSWhiteboardControl alloc] initWithDelegate:self viewFrame:frame];
        NSString *roomId = [ClassroomService sharedService].currentRoom.roomId;
//        if ([roomId containsString:@"S"] || [roomId containsString:@"I"]) {
//            roomId = [roomId substringFromIndex:1];
//        }
        _wBoardCtrl.roomId = roomId;
        _wBoardCtrl.isRatationImage = self.isRorationImage;
        [_wBoardCtrl moveToSuperView:self.view];
    }
    return _wBoardCtrl;
}

#pragma mark ---- 网络监测
- (void)didReportStatusForm:(RCRTCStatusForm *)form {
    const CGFloat lossRateBase = 0.15;
    if (self.packetLossStore.count + form.sendStats.count > 10) {
        NSInteger diff = (self.packetLossStore.count + form.sendStats.count) - 10;
        [self.packetLossStore removeObjectsInRange:NSMakeRange(0,diff)];
    }
    
    for (RCRTCStreamStat* stat  in form.sendStats) {
        [self.packetLossStore addObject:@(stat.packetLoss)];
    }
    
    float totalSum = 0;
    for (NSNumber* lossRate in self.packetLossStore) {
        totalSum += [lossRate floatValue];
    }
    
    if (totalSum > 0 && self.packetLossStore.count) {
        float avgLoss = totalSum / self.packetLossStore.count;
        [self showNetworkingStatus:avgLoss];
        if (avgLoss > lossRateBase) { // 网络质量不佳
            
            dispatch_async(dispatch_get_main_queue(), ^{
                [self.view addSubview:self.networkLabel];
                [self.view bringSubviewToFront:self.networkLabel];
                self.networkLabel.hidden = NO;
                self.networkLabel.text = @"当前通话连接质量不佳";
            });
        }
        else { // 正常
            dispatch_async(dispatch_get_main_queue(), ^{
                self.networkLabel.hidden = YES;
                self.networkLabel.text = @"";
                [self.networkLabel removeFromSuperview];
            });
        }
    }
}

- (void)showNetworkingStatus:(float)packageLose {
    dispatch_async(dispatch_get_main_queue(), ^{
        if (packageLose < 0.05) {
            self.titleView.netStatus = NetWorkingStatus_Good;
        }
        else if (packageLose <= 0.1) {
            self.titleView.netStatus = NetWorkingStatus_Well;
        }
        else if (packageLose <= 0.15) {
            self.titleView.netStatus = NetWorkingStatus_Bad;
        }
        else {
            self.titleView.netStatus = NetWorkingStatus_Poor;
        }
    });
}


- (NSMutableArray<NSNumber*>*)packetLossStore {
    if (!_packetLossStore) {
        _packetLossStore = [[NSMutableArray alloc] initWithCapacity:10];
    }
    return _packetLossStore;
}

- (UILabel *)networkLabel {
    if (!_networkLabel) {
        _networkLabel = [[UILabel alloc] initWithFrame:CGRectMake((kScreenWidth - 200) / 2.0f, (kScreenHeight - 60) / 2.0f, 200, 60)];
        _networkLabel.backgroundColor = HexRGBAlpha(0x000000, 0.8f);
        _networkLabel.textColor = HexRGB(0xffffff);
        _networkLabel.textAlignment = NSTextAlignmentCenter;
        _networkLabel.font = [UIFont systemFontOfSize:14.0f];
        _networkLabel.layer.cornerRadius = 5.0f;
    }
    return _networkLabel;
}

#pragma mark ---- 修改声音模式
- (void)changeModeAction:(BOOL)enable {
    if (enable) { // 音乐模式切换
        [[RCRTCEngine sharedInstance].defaultAudioStream setAudioQuality:RCRTCAudioQualityMusicHigh Scenario:RCRTCAudioScenarioMusicClassRoom];
    }
    else {
        [[RCRTCEngine sharedInstance].defaultAudioStream setAudioQuality:RCRTCAudioQualityMusicHigh Scenario:RCRTCAudioScenarioDefault];
    }
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    if (_timer) {
        [_timer invalidate];
        _timer = nil;
    }
}

- (void)setMetronomeStat:(KSMetronomeType)metronomeStat {
    _metronomeStat = metronomeStat;
    
    self.currentTotalNo = 0;
    
    if (_timer && _isPlay) {
        
        [self resetTimer];
    }
}

- (void)setRate:(int)rate{
    
    _rate = rate;
    
    CGFloat rateFloat = rate;
    
    self.timerLength = 1 /(rateFloat /60);
    
    if (self.lastRate == 0) {
        
        self.lastRate = _rate;
    }
    
    // 超过10间隔再重置定时器，设置最新间隔秒数
    if (abs(self.lastRate -_rate) >= 10 && _isPlay) {
        
        self.lastRate = _rate;
        
        [self resetTimer];
    }
    
    if (abs(self.lastRate -_rate) >= 10 && !_isPlay) {
        
        if (_timer) {
            [_timer invalidate];
            _timer = nil;
        }
    }
}

- (void)play{
    
    _isPlay = YES;
    [ClassroomService sharedService].currentRoom.isPlayBeat = YES;
    [self.timer setFireDate:[NSDate distantPast]];
}

- (void)pause{
    [[RCRTCAudioMixer sharedInstance] stop];
    [self.timer setFireDate:[NSDate distantFuture]];//暂停计时器
    _isPlay = NO;
    [ClassroomService sharedService].currentRoom.isPlayBeat = NO;
}

- (NSTimer *)timer{
    
    if (!_timer) {
        
        _timer = [NSTimer scheduledTimerWithTimeInterval:self.timerLength target:self selector:@selector(timerAction) userInfo:nil repeats:YES];
        [[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
    }
    return _timer;
}

- (void)timerAction {
    
    if (_metronomeStat ==KSMetronomeType1V4) {
        [self playAction:YES];
    }
    else {
        if (_metronomeStat == KSMetronomeType2V4 && self.currentTotalNo %2 == 0) {
            [self playAction:YES];
        }else if (_metronomeStat == KSMetronomeType3V4 && self.currentTotalNo %3 == 0){
            [self playAction:YES];
        }else if (_metronomeStat == KSMetronomeType4V4 && self.currentTotalNo %4 == 0){
            [self playAction:YES];
        }else if (_metronomeStat == KSMetronomeType6V8 && self.currentTotalNo %6 == 0){
            [self playAction:YES];
        }else{
            [self playAction:NO];
        }
    }
    [self.videoListView showBeatNode:self.currentTotalNo];
    self.currentTotalNo ++;
}

- (void)playAction:(BOOL)isDing {
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        NSString *path = isDing ? self.pathDing : self.pathDong;
        [[RCRTCAudioMixer sharedInstance] stop];
        @try {
            [RCRTCAudioMixer sharedInstance].mixingVolume = self.volume;
            [RCRTCAudioMixer sharedInstance].playingVolume = self.volume;
            [[RCRTCAudioMixer sharedInstance] startMixingWithURL:[NSURL fileURLWithPath:path] playback:YES mixerMode:RCRTCMixerModeMixing loopCount:1];
        } @catch (NSException *exception) {
            NSLog(@"%@", exception);
        } @finally {
        }
        
    });
}

- (NSString *)pathDing {
    if (!_pathDing) {
        _pathDing = [[NSBundle mainBundle] pathForResource:@"tick" ofType:@"wav"];
    }
    return _pathDing;
}

- (NSString *)pathDong {
    if (!_pathDong) {
        _pathDong = [[NSBundle mainBundle] pathForResource:@"tock" ofType:@"wav"];
    }
    return _pathDong;
}

#pragma mark -- 重置定时器
- (void)resetTimer {
    
    [_timer invalidate];
    _timer = nil;
    [self.timer setFireDate:[NSDate distantPast]];
}

- (void)removeAll {
    
    if (_timer) {
        [_timer invalidate];
        _timer = nil;
    }
}

#pragma mark --- KSWhiteboardControlDelegate
- (void)didTurnPage:(NSInteger)pageNum {
    
}

- (void)whiteboardViewDidChangeZoomScale:(float)scale {
    
}

// 白板连接状态回调
- (void)connectionWhiteboardStatus:(JOINROOMSTATUS)status {
    if (status == JOINROOMSTATUS_FAILED) {
      [self.tipsView showTipsMessage:@"白板连接失败，请检查您的网络" inView:self.view];
    }
    else if (status == JOINROOMSTATUS_PARAMERROR) {
        [self.tipsView showTipsMessage:@"获取白板参数错误" inView:self.view];
    }
}

#pragma mark -- mainContainer

- (void)mainContainerOpertionMember:(RoomMember *)member tapButton:(UIButton *)button {
    // 🙋操作
    if (button.selected) { // 取消举手
        if (self.alertView && self.alertView.isShow) {
            [self.alertView dismissAlertView];
        }
        self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认取消举手吗？" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            
        } confirm:^{
            [[ClassroomService sharedService] enableDevice:NO withType:DeviceTypeHandup];
        }];
    }
    else {
        if (self.alertView && self.alertView.isShow) {
            [self.alertView dismissAlertView];
        }
        self.alertView = [KSNormalAlertView ks_showAlertWithTitle:@"确认举手吗？" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            
        } confirm:^{
            [[ClassroomService sharedService] enableDevice:YES withType:DeviceTypeHandup];
        }];
    }
    
}


#pragma mark ------ 创建MBProgress

- (MBProgressHUD *)createProgressHUD {
    [MBProgressHUD hideHUD];
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    hud.mode = MBProgressHUDModeIndeterminate;
    hud.contentColor = [UIColor whiteColor];
    hud.bezelView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.bezelView.backgroundColor = [UIColor colorWithHexString:@"#000000" alpha:0.8];
    [hud hideAnimated:YES afterDelay:60.0f]; // 自动关闭时间60s
    return hud;
}


/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end