edu-saas-ios/MusicGradeExam/MusicGradeExam/UI/Classroom/Controller/ClassroomViewController.m

//
//  ClassroomViewController.m
//  MusicGradeExam
//
//  Created by Kyle on 2020/7/10.
//  Copyright © 2020 DayaMusic. All rights reserved.
//

#import "ClassroomViewController.h"
#import "ClassTitleView.h"
#import "ClassroomMainContainer.h"
#import "ClassVideoListView.h"
#import "KSNormalAlertView.h"

#import "RTCService.h"
#import "Classroom.h"
#import "ClassroomService.h"
#import <MBProgressHUD/MBProgressHUD.h>
#import "AppDelegate.h"
#import "UIDevice+TFDevice.h"
#import "KSRemoteUserManager.h"
#import "LocalRenderManager.h"
#import "NSDate+Transform.h"

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

#define TitleViewHeight  (64)

typedef NS_ENUM(NSInteger, KICKTYPE) {
    KICKTYPE_NONE,
    KICKTYPE_FINISH = 1,
    KICKTYPE_RECORD = 2,
    KICKTYPE_RESIGN = 3,
};

@interface ClassroomViewController ()<ClassTitleViewDelegate, RCRTCRoomEventDelegate, ClassroomDelegate, UIGestureRecognizerDelegate, RCRTCActivityMonitorDelegate, RTCServiceDelegate, ClassVideoListViewDelegate>

@property (nonatomic, strong) ClassTitleView *titleView;
@property (nonatomic, strong) ClassroomMainContainer *containerView;
@property (nonatomic, strong) ClassVideoListView *videoListView;
@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 hasShowAlert;

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

@property (nonatomic, strong) KSTipsView *tipsView;

@property (nonatomic, assign) KICKTYPE kickType; // 退出状态

@property (nonatomic, strong) SubjectImageModel *guideImageModel;

@property (nonatomic, assign) BOOL isSimulitionExam;  // 是否模拟考试

@end

@implementation ClassroomViewController

- (void)setRegistrationId:(NSString *)registrationId {
    _registrationId = registrationId;
    _isSimulitionExam = [registrationId containsString:@"S"] ? YES : NO;
}

#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].monitorDelegate = self;
}

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

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    self.view.backgroundColor = [UIColor colorWithHexString:@"141414" alpha:1];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(leaveRoomAction) name:@"classroomLogout" 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];
    [[RTCService sharedInstance] useSpeaker:YES];
    UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
    [self.view addGestureRecognizer:tapGes];
    tapGes.delegate = self;
    [self showRoleHud];
    self.kickType = KICKTYPE_NONE;
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(backgroundQuitRoomAction) name:@"backgroundQuit" object:nil];
}

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

#pragma mark ----- 账号异地登陆
- (void)leaveRoomAction {
    [self.tipsView showTipsMessage:@"该账号在其他地方登录" inView:self.view];
    self.isSwitchLine = NO;
    [[RoomLoginHelper sharedInstance] logout:^{
    } error:^(RCRTCCode code) {
    }];
    self.cancleAlert = YES;
    [[NSNotificationCenter defaultCenter] postNotificationName:@"backLoginView" 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.backgroundColor = [UIColor colorWithHexString:@"#000000" alpha:0.8];
    [hud hideAnimated:YES afterDelay:2];
}


- (void)tapGesture: (UITapGestureRecognizer *)tapGesture {
    self.titleView.isDisplay = YES;
}
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    if ([touch.view isDescendantOfView:self.videoListView]) {
        return NO;
    }
    if ([touch.view isDescendantOfView:self.containerView]) {
        [self tapGesture:(UITapGestureRecognizer *)gestureRecognizer];
    }
    return YES;
}

- (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 {
    switch (tag) {
        case ClassTitleViewActionTagMicrophone:
        {
            if (button.selected == NO) {
                [KSNormalAlertView ks_showAlertWithTitle:@"确认关闭麦克风吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
                } confirm:^{
                    button.selected = YES;
                    if (self.isSimulitionExam) {
                        [[RTCService sharedInstance] setMicrophoneDisable:YES];
                    }
                    else {
                        [[ClassroomService sharedService] enableDevice:NO withType:DeviceTypeMicrophone];
                    }
                }];

            }
            else {
                button.selected = NO;
                if (self.isSimulitionExam) {
                    [[RTCService sharedInstance] setMicrophoneDisable:NO];
                }
                else {
                    [[ClassroomService sharedService] enableDevice:YES withType:DeviceTypeMicrophone];
                }
            }
        }
            break;
        case ClassTitleViewActionTagCamera:
        {
            if (button.selected == NO) {
                [KSNormalAlertView ks_showAlertWithTitle:@"确认关闭摄像头吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
                } confirm:^{
                    button.selected = YES;
                    
                    if (self.isSimulitionExam) {
                        [[RTCService sharedInstance] setCameraDisable:YES];
                    }
                    else {
                        [[ClassroomService sharedService] enableDevice:NO withType:DeviceTypeCamera];
                    }
                }];
            }
            else {
                button.selected = NO;
                
                if (self.isSimulitionExam) {
                    [[RTCService sharedInstance] setCameraDisable:NO];
                }
                else {
                    [[ClassroomService sharedService] enableDevice:YES withType:DeviceTypeCamera];
                }
            }
        }
            break;
        case ClassTitleViewActionTagSwitchLine:  // 切换线路
        {
            [KSNormalAlertView ks_showAlertWithTitle:@"确认切换线路吗?" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            } confirm:^{
                [self restartRoom];
            }];
        }
            break;
        case ClassTitleViewActionTagSwitchCamera:
        {
            [[RTCService sharedInstance] switchCamera];
        }
            break;
        case ClassTitleViewActionTagGuide: // 声部示意图
        {
            button.selected = !button.selected;
            self.containerView.hiddenGuideImage = button.selected;
        }
            break;
        case ClassTitleViewActionTagHangup:
        {
            [KSNormalAlertView ks_showAlertWithTitle:@"确认退出考场吗？" leftTitle:@"取消" rightTitle:@"确认" cancel:^{
            } confirm:^{
                SealClassLog(@"ActionTagHangup");
                self.hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
                [[RoomLoginHelper sharedInstance] logout:^{
                } error:^(RCRTCCode code) {
                    [self.hud hideAnimated:YES];
                }];
            }];
        }
            break;
        default:
            break;
    }
}

// 判断是否需要退出房间
- (void)refreshClassStatus {
    
}

#pragma mark ------ 退出RTC房间并重新加入
- (void)restartRoom {
    self.isSwitchLine = YES;
    self.hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    [[RoomLoginHelper 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 = [RoomLoginHelper sharedInstance].roomId;
        NSString *userName = [RoomLoginHelper 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 publishStream];
        [self bindDelegates];
        // 重置声部示意图
        self.titleView.guideBtn.selected = NO;
        self.containerView.hiddenGuideImage = NO;

        [self.titleView refreshTitleView];
        [RCRTCEngine sharedInstance].monitorDelegate = 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 if (_kickType != KICKTYPE_NONE) { // 退出房间，但是不dismiss
        [[KSRemoteUserManager shareInstance] removeAllUser];
        if ([RTCService sharedInstance].rtcRoom) {
            [[RTCService sharedInstance] leaveRongRTCRoom:[ClassroomService sharedService].currentRoom.roomId success:^{
            } error:^(RCRTCCode code) {
            }];
        }
        [self showKickAlert];
    }
    else {
        [self.hud hideAnimated:YES];
        [[KSRemoteUserManager shareInstance] removeAllUser];
        if ([RTCService sharedInstance].rtcRoom) {
            [[RTCService sharedInstance] leaveRongRTCRoom:[ClassroomService sharedService].currentRoom.roomId success:^{
            } error:^(RCRTCCode code) {
            }];
        }
        [self dismissClassroom];
    }
}

- (void)showKickAlert {
    if (_kickType == KICKTYPE_FINISH) {
        [KSNormalAlertView ks_showAlertWithTitle:@"您已完成考试，请耐心等待考试结果。" confirmTitle:@"退出考场" confirm:^{
            [self dismissClassroom];
        }];
    }
    else if (_kickType == KICKTYPE_RECORD) {
        // 弹窗提示去录播
        [KSNormalAlertView ks_showAlertWithTitle:@"当前状态无法正常完成在线直播考试\n主考官建议您录播上传考试视频。" leftTitle:@"取消" rightTitle:@"去录播" cancel:^{
            // 离开教室
            [self dismissClassroom];
        } confirm:^{
            // 去录播
            [self dismissClassroom];
            [[NSNotificationCenter defaultCenter] postNotificationName:RecordExamNotification object:nil];
        }];
    }
    else if (_kickType == KICKTYPE_RESIGN) {
        [KSNormalAlertView ks_showAlertWithTitle:@"当前状态无法正常完成考试，请检查设备及网络状态正常后再次签到考试。" confirmTitle:@"确定" confirm:^{
            // 离开教室
            [self dismissClassroom];
        }];
    }
}

- (void)dismissClassroom {
    [self.hud hideAnimated:YES];
    [ClassroomService sharedService].currentRoom = nil;
    [self dismissViewControllerAnimated:NO completion:^{
        
        for (UIView *view in [UIApplication sharedApplication].keyWindow.subviews) {
            if ([view isKindOfClass:[KSNormalAlertView class]]) {
                [view removeFromSuperview];
            }
        }
        [self.titleView stopDurationTimer];
    }];
}

- (void)memberDidJoin:(RoomMember *)member {
    NSLog(@"memberDidJoin %@",member);
    if(member.role == RoleMainTeacher || member.role == RoleAssistantTeacher) {
        [self.videoListView reloadVideoList];
    }
    if (member.role == RoleMainTeacher || member.role == RoleAssistantTeacher) {
        [self.tipsView showTipsMessage:[NSString stringWithFormat:@"老师%@已经进入考场", member.name] inView:self.view];
    }
}

- (void)memberDidLeave:(RoomMember *)member {
    NSLog(@"memberDidLeave %@",member);
    // 此处移除
    [[KSRemoteUserManager shareInstance] removeUser:member.userId];
    
    if(member.role == RoleMainTeacher || member.role == RoleAssistantTeacher) {
        [self.videoListView reloadVideoList];
    }
}

- (void)memberDidKick:(RoomMember *)member {
    NSLog(@"memberDidKick %@",member);
    RoomMember *curMember = [ClassroomService sharedService].currentRoom.currentMember;
    [[ClassroomService sharedService].currentRoom removeMemeber:member];
    if ([curMember.userId isEqualToString:member.userId]) {
        self.kickType = KICKTYPE_FINISH;
        [[RoomLoginHelper sharedInstance] logout:^{
        } error:^(RCRTCCode code) {
        }];
        return;
    }
    
    
    [[KSRemoteUserManager shareInstance] removeUser:member.userId];
    Role curRole = [ClassroomService sharedService].currentRoom.currentMember.role;
    if (curRole == RoleMainTeacher || curRole == RoleAssistantTeacher) {
        [self.tipsView showTipsMessage:[NSString stringWithFormat:@"你已将%@移出考场", member.name] inView:self.view];
    }
    [self.videoListView reloadVideoList];
    if (self.containerView.member.role == member.role) {
        [self.containerView cancelRenderView];
    }
}

- (void)memberRecordAction:(RoomMember *)member {
    NSLog(@"memberRecordAction %@", member);
    RoomMember *curMember = [ClassroomService sharedService].currentRoom.currentMember;
    if ([curMember.userId isEqualToString:member.userId]) {
        self.kickType = KICKTYPE_RECORD;
        [[RoomLoginHelper sharedInstance] logout:^{
        } error:^(RCRTCCode code) {
        }];
    }
}

// 不播放声音列表
- (void)memberIgnoreAction:(RoomMember *)member {
    NSLog(@"memberRecordAction %@", member);
    NSString *shieldUserId = member.shieldUserId;
    NSArray *memberArray = [shieldUserId componentsSeparatedByString:@","];
    [[RTCService sharedInstance] unPlayRemoteUserAudioStream:memberArray];
}

- (void)memberNoFinishAction:(RoomMember *)member {
    NSLog(@"memberRecordAction %@", member);
    RoomMember *curMember = [ClassroomService sharedService].currentRoom.currentMember;
    if ([curMember.userId isEqualToString:member.userId]) {
        self.kickType = KICKTYPE_RESIGN;
        [[RoomLoginHelper sharedInstance] logout:^{
        } error:^(RCRTCCode code) {
        }];
    }
}

- (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 == RoleMainTeacher || curMember.role == RoleAssistantTeacher) && ![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];
                }
                
                [[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];
                }
                
                [[RTCService sharedInstance] setMicrophoneDisable:!enable];
                
            }
            else if (type == DeviceTypeMusicMode) {
                // 非自己操作才需要做提示
                if(![curMember.userId isEqualToString:operatorId]) {

                }
                
                [self changeModeAction:enable];
            }
            else if (type == DeviceTypeHandup) {
            }
        }
    }
    if (type == DeviceTypeCamera && [curMember.userId isEqualToString:member.userId]) {
        // 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];
}

//助教请求用户打开设备，助教关闭用户设备没有回调。
- (void)deviceDidInviteEnable:(DeviceType)type ticket:(NSString *)ticket {
    NSLog(@"deviceDidInviteEnable devicetype:%@ ticket:%@ ",@(type),ticket);
    if (type == DeviceTypeCamera) {
        [KSNormalAlertView ks_showAlertWithTitle:@"老师邀请你打开摄像头" leftTitle:@"拒绝" rightTitle:@"同意" cancel:^{
            [[ClassroomService sharedService] rejectEnableDevice:ticket];
        } confirm:^{
            [[ClassroomService sharedService] approveEnableDevice:ticket];
        }];
    }else if (type == DeviceTypeMicrophone) {
        [KSNormalAlertView ks_showAlertWithTitle:@"老师邀请你打开麦克风" leftTitle:@"拒绝" rightTitle:@"同意" cancel:^{
            [[ClassroomService sharedService] rejectEnableDevice:ticket];
        } confirm:^{
            [[ClassroomService sharedService] approveEnableDevice:ticket];
        }];
    }
    else {
        [[ClassroomService sharedService] approveEnableDevice:ticket];
    }
}

//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 - 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.titleView];
    [self.view addSubview:self.videoListView];
    [self.view bringSubviewToFront:self.titleView];
}

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


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

- (void)renderMainContainerView {
    // 主屏显示学生
    [self.containerView containerViewRenderView:[ClassroomService sharedService].currentRoom.currentMember];
}


- (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);
    [self renderMainContainerView];
}


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



#pragma mark --- RTCServiceDelegate  自己发布流成功回调
- (void)successPublishLocalStream {
    
}

#pragma mark - RongRTCRoomDelegate
- (void)didPublishStreams:(NSArray <RCRTCInputStream *>*)streams {
    
    // 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) {
            [self.videoListView updateUserVideo:stream.userId];
        }
    }
}

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

- (void)didReportFirstKeyframe:(RCRTCInputStream *)stream {
    if (stream.streamId && stream.streamId.length > 0) {

    }
}


#pragma mark ----- ClassVideoListViewDelegate
- (void)videoListView:(ClassVideoListView *)view didTap:(RoomMember *)member {
    self.titleView.isDisplay = YES;
}

#pragma mark - Getters & setters
- (SubjectImageModel *)guideImageModel {
    if (!_guideImageModel) {
        _guideImageModel = [[SubjectImageModel alloc] init];
        _guideImageModel.subjectName = self.subjectName;
    }
    return _guideImageModel;
}

- (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)];
        _titleView.hasGuideImage = self.guideImageModel.hasImage;
    }
    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;
        _videoListView.isSimulitionExam = self.isSimulitionExam;
    }
    return _videoListView;
}

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

#pragma mark ---- 网络监测
- (void)didReportStatForm:(RCRTCStatisticalForm *)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) {
        
        [[RCRTCEngine sharedInstance].defaultAudioStream changeMusicPlayMode:RCRTCAudioScenarioMusicSingleNotePlay];
    }
    else {
        [[RCRTCEngine sharedInstance].defaultAudioStream changeMusicPlayMode:RCRTCAudioScenarioMusicNormalPlay];
    }
}
/*
#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