//
//  SCVODPlayerViewController.m
//  SellyCloudSDK_Example
//
//  Created by Caleb on 16/9/25.
//  Copyright © 2025 Caleb. All rights reserved.
//

#import "SCLiveVideoPlayerViewController.h"
#import "SCPlayerConfigView.h"
#import "AVLiveStreamModel.h"
#import "AVConstants.h"
#import <SellyCloudSDK/SellyCloudManager.h>
#import <Masonry/Masonry.h>
#import "SCLiveItemContainerView.h"
#import <Photos/Photos.h>
#import <MediaPlayer/MediaPlayer.h>
#import "TokenGenerator.h"
#import "SCPlayerDebugView.h"
#import <SDWebImage/SDWebImage.h>
#import "SellyCallPiPManager.h"  // 🎯 导入画中画管理器

@interface SCLiveVideoPlayerViewController ()<SellyLivePlayerDelegate>
@property (nonatomic, strong) SellyLiveVideoPlayer *player;
@property (nonatomic, strong) UIView *playerContainerView;
@property (nonatomic, strong) SCLiveItemContainerView *containerView;
@property (nonatomic, strong) SCPlayerConfig *currentConfig;
@property (nonatomic, strong) UIButton *closeButton;
@property (nonatomic, strong) SCPlayerDebugView *debugView;

// 🎯 连麦 PK 模式相关
@property (nonatomic, assign) BOOL isPKMode;  // 是否是连麦模式
@property (nonatomic, strong) SellyLiveVideoPlayer *pkPlayer;  // PK 播放器
@property (nonatomic, strong) UIView *pkPlayerContainerView;  // PK 播放器容器
@property (nonatomic, strong) SCPlayerConfig *pkConfig;  // PK 播放器配置

// 封面相关
@property (nonatomic, strong) UIImageView *coverImageView;
@property (nonatomic, strong) UIActivityIndicatorView *loadingIndicator;
@property (nonatomic, strong) UIImageView *pkCoverImageView;  // PK 播放器封面
@property (nonatomic, strong) UIActivityIndicatorView *pkLoadingIndicator;  // PK 加载指示器

// 保存按钮 model 的引用，用于更新状态
@property (nonatomic, strong) SCLiveItemModel *playPauseModel;
@property (nonatomic, strong) SCLiveItemModel *muteModel;
@property (nonatomic, strong) SCLiveItemModel *pipModel; // 🎯 画中画按钮
@property (nonatomic, strong) AVLiveStreamModel *streamModel;

// 🎯 画中画管理器
@property (nonatomic, strong) SellyCallPiPManager *pipManager;
@end

@implementation SCLiveVideoPlayerViewController

- (instancetype)initWithLiveStream:(AVLiveStreamModel *)stream {
    self = [super init];
    self.streamModel = stream;
    
    // 🎯 检测是否是连麦 PK 模式
    self.isPKMode = (stream.stream_pk != nil && stream.stream_pk.length > 0);
    
    if (self.isPKMode) {
        NSLog(@"🎯 检测到连麦 PK 房间 - 主播: %@, PK: %@", stream.stream, stream.stream_pk);
    }
    
    [self convertStreamModelToPlayerConfig:stream];
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = UIColor.blackColor;
    
    // 隐藏导航栏
    self.navigationController.navigationBarHidden = YES;
    
    // 🎯 根据是否是 PK 模式，设置不同的布局
    if (self.isPKMode) {
        [self setupPKModeLayout];
    } else {
        [self setupNormalModeLayout];
    }
    
    // 添加封面图片（在播放器容器上方）
    [self setupCoverImageView];
    
    // 添加关闭按钮（右上角）
    [self setupCloseButton];
    
    // 添加调试视图（右上角，关闭按钮下方）
    [self setupDebugView];
    
    // 🎯 添加控制按钮容器（所有模式都显示）
    [self.view addSubview:self.containerView];
    [self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.offset(0);
        make.bottom.offset(-48);
        make.height.offset(100);
    }];
    
    // 禁止息屏
    [UIApplication sharedApplication].idleTimerDisabled = YES;
    
    [self startPlayWithConfig:self.currentConfig];
}

- (void)convertStreamModelToPlayerConfig:(AVLiveStreamModel *)stream {
    if (!stream) {
        NSLog(@"❌ stream model is nil");
        return;
    }
    
    // 创建主播放器配置
    SCPlayerConfig *config = [[SCPlayerConfig alloc] init];
    config.streamId = stream.stream;
    
    // 根据 playProtocol 字符串设置协议类型
    NSString *protocol = stream.play_protocol.lowercaseString;
    if ([protocol isEqualToString:@"rtc"] || [protocol isEqualToString:@"webrtc"]) {
        config.protocol = SellyLiveMode_RTC;
    } else if ([protocol isEqualToString:@"rtmp"]) {
        config.protocol = SellyLiveMode_RTMP;
    } else {
        // 默认使用 RTMP（flv、hls 等也使用 RTMP 模式）
        config.protocol = SellyLiveMode_RTMP;
    }
    
    NSLog(@"🔄 转换 StreamModel -> PlayerConfig: stream=%@, protocol=%@ (%@)",
          config.streamId,
          stream.play_protocol,
          config.protocol == SellyLiveMode_RTC ? @"RTC" : @"RTMP");
    
    // 保存主播放器配置
    self.currentConfig = config;
    
    // 🎯 如果是 PK 模式，创建 PK 播放器配置
    if (self.isPKMode) {
        SCPlayerConfig *pkConfig = [[SCPlayerConfig alloc] init];
        pkConfig.streamId = stream.stream_pk;
        pkConfig.protocol = config.protocol;  // 使用相同的协议
        
        NSLog(@"🔄 创建 PK PlayerConfig: stream=%@, protocol=%@",
              pkConfig.streamId,
              pkConfig.protocol == SellyLiveMode_RTC ? @"RTC" : @"RTMP");
        
        self.pkConfig = pkConfig;
    }
}

#pragma mark - Layout Setup

// 🎯 普通模式布局（单播放器，全屏显示）
- (void)setupNormalModeLayout {
    [self.view addSubview:self.playerContainerView];
    [self.playerContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.view);
    }];
}

// 🎯 PK 模式布局（双播放器，左右并排）
- (void)setupPKModeLayout {
    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
    CGFloat space = 8.0;  // 间距
    CGFloat playerWidth = (screenWidth - space) / 2.0;  // 单个播放器宽度
    CGFloat playerHeight = playerWidth * 16.0 / 9.0;  // 宽高比 9:16
    
    // 添加主播放器容器（左侧）
    [self.view addSubview:self.playerContainerView];
    [self.playerContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view);
        make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop);
        make.width.offset(playerWidth);
        make.height.offset(playerHeight);
    }];
    
    // 添加 PK 播放器容器（右侧）
    [self.view addSubview:self.pkPlayerContainerView];
    [self.pkPlayerContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.view);
        make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop);
        make.width.offset(playerWidth);
        make.height.offset(playerHeight);
    }];
    
    NSLog(@"🎯 PK 模式布局完成 - 播放器宽度: %.1f, 高度: %.1f, 间距: %.1f", playerWidth, playerHeight, space);
}

- (void)setupCloseButton {
    _closeButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [_closeButton setImage:[UIImage systemImageNamed:@"xmark.circle.fill"] forState:UIControlStateNormal];
    _closeButton.tintColor = [UIColor whiteColor];
    [_closeButton addTarget:self action:@selector(closeButtonTapped) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:_closeButton];
    [_closeButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.offset(-16);
        make.top.offset(50);
        make.width.height.offset(44);
    }];
}

- (void)setupDebugView {
    _debugView = [[SCPlayerDebugView alloc] init];
    [self.view addSubview:_debugView];
    [_debugView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.offset(-16);
        make.top.equalTo(self.closeButton.mas_bottom).offset(16);
        make.width.offset(300);
    }];
    
    // 添加初始日志
    [_debugView appendLog:@"调试器已初始化" withPrefix:@"✅"];
}

- (void)setupCoverImageView {
    // 创建主播放器封面图片视图
    _coverImageView = [[UIImageView alloc] init];
    _coverImageView.contentMode = UIViewContentModeScaleAspectFit;
    _coverImageView.backgroundColor = [UIColor blackColor];
    [self.view addSubview:_coverImageView];
    
    if (self.isPKMode) {
        // 🎯 PK 模式：封面覆盖左侧播放器
        [_coverImageView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.edges.equalTo(self.playerContainerView);
        }];
    } else {
        // 普通模式：封面全屏
        [_coverImageView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.edges.equalTo(self.view);
        }];
    }
    
    // 创建主播放器加载指示器
    _loadingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleLarge];
    _loadingIndicator.color = [UIColor whiteColor];
    [self.view addSubview:_loadingIndicator];
    [_loadingIndicator mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self.coverImageView);
    }];
    [_loadingIndicator startAnimating];
    
    // 🎯 如果是 PK 模式，创建 PK 播放器的封面和加载指示器
    if (self.isPKMode) {
        _pkCoverImageView = [[UIImageView alloc] init];
        _pkCoverImageView.contentMode = UIViewContentModeScaleAspectFit;
        _pkCoverImageView.backgroundColor = [UIColor blackColor];
        [self.view addSubview:_pkCoverImageView];
        [_pkCoverImageView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.edges.equalTo(self.pkPlayerContainerView);
        }];
        
        _pkLoadingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleLarge];
        _pkLoadingIndicator.color = [UIColor whiteColor];
        [self.view addSubview:_pkLoadingIndicator];
        [_pkLoadingIndicator mas_makeConstraints:^(MASConstraintMaker *make) {
            make.center.equalTo(self.pkCoverImageView);
        }];
        [_pkLoadingIndicator startAnimating];
    }
    
    // 加载主播放器封面图片
    if (self.streamModel.preview_image && self.streamModel.preview_image.length > 0) {
        [self loadCoverImage:self.streamModel.preview_image];
        [self.debugView appendLog:@"正在加载主播放器封面..." withPrefix:@"🖼️"];
    } else {
        [self.debugView appendLog:@"主播放器无封面，等待视频首帧..." withPrefix:@"⏳"];
    }
    
    // 🎯 PK 模式下，PK 播放器也显示相同的封面（因为没有单独的 PK 封面数据）
    if (self.isPKMode) {
        if (self.streamModel.preview_image && self.streamModel.preview_image.length > 0) {
            [self loadPKCoverImage:self.streamModel.preview_image];
            [self.debugView appendLog:@"正在加载 PK 播放器封面..." withPrefix:@"🖼️"];
        } else {
            [self.debugView appendLog:@"PK 播放器无封面，等待视频首帧..." withPrefix:@"⏳"];
        }
    }
}

- (void)loadCoverImage:(NSString *)imageUrlString {
    NSURL *url = [NSURL URLWithString:imageUrlString];
    if (!url) {
        NSLog(@"❌ 无效的封面图片 URL: %@", imageUrlString);
        [self.debugView appendLog:@"无效的封面 URL" withPrefix:@"❌"];
        return;
    }
    
    // 使用 SDWebImage 加载图片，支持缓存和占位符
    [self.coverImageView sd_setImageWithURL:[NSURL URLWithString:imageUrlString]];
}

// 🎯 加载 PK 播放器封面
- (void)loadPKCoverImage:(NSString *)imageUrlString {
    NSURL *url = [NSURL URLWithString:imageUrlString];
    if (!url) {
        NSLog(@"❌ 无效的 PK 封面图片 URL: %@", imageUrlString);
        [self.debugView appendLog:@"无效的 PK 封面 URL" withPrefix:@"❌"];
        return;
    }
    
    [self.pkCoverImageView sd_setImageWithURL:[NSURL URLWithString:imageUrlString]];
}

- (void)hideCoverImage {
    [UIView animateWithDuration:0.3 animations:^{
        self.coverImageView.alpha = 0;
        self.loadingIndicator.alpha = 0;
    } completion:^(BOOL finished) {
        [self.coverImageView removeFromSuperview];
        self.coverImageView = nil;
        [self.loadingIndicator stopAnimating];
        [self.loadingIndicator removeFromSuperview];
        self.loadingIndicator = nil;
    }];
}

// 🎯 隐藏 PK 播放器封面
- (void)hidePKCoverImage {
    [UIView animateWithDuration:0.3 animations:^{
        self.pkCoverImageView.alpha = 0;
        self.pkLoadingIndicator.alpha = 0;
    } completion:^(BOOL finished) {
        [self.pkCoverImageView removeFromSuperview];
        self.pkCoverImageView = nil;
        [self.pkLoadingIndicator stopAnimating];
        [self.pkLoadingIndicator removeFromSuperview];
        self.pkLoadingIndicator = nil;
    }];
}

- (void)closeButtonTapped {
    // 停止播放
    if (self.player) {
        [self.player stop];
    }
    // 🎯 PK 模式：停止 PK 播放器
    if (self.isPKMode && self.pkPlayer) {
        [self.pkPlayer stop];
    }
    
    // 恢复导航栏
    self.navigationController.navigationBarHidden = NO;
    
    // 返回上一页
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    // 确保封面在播放器上方，但在控制按钮、调试视图和关闭按钮下方
    if (self.coverImageView) {
        [self.view bringSubviewToFront:self.coverImageView];
        [self.view bringSubviewToFront:self.loadingIndicator];
    }
    // 🎯 PK 模式：确保 PK 封面也在正确的层级
    if (self.isPKMode && self.pkCoverImageView) {
        [self.view bringSubviewToFront:self.pkCoverImageView];
        [self.view bringSubviewToFront:self.pkLoadingIndicator];
    }
    [self.view bringSubviewToFront:self.containerView];
    [self.view bringSubviewToFront:self.debugView];
    [self.view bringSubviewToFront:self.closeButton];
}

- (void)showConfigView {
    SCPlayerConfigView *configView = [[SCPlayerConfigView alloc] init];
    __weak typeof(self) weakSelf = self;
    [configView showInViewController:self callback:^(SCPlayerConfig *config) {
        weakSelf.currentConfig = config;
        [weakSelf startPlayWithConfig:config];
    }];
    
    // 配置视图现在添加到 self.view 上，确保关闭按钮在最上层
    [self.view bringSubviewToFront:self.closeButton];
}

- (void)startPlayWithConfig:(SCPlayerConfig *)config {
    // 如果已经有播放器在运行，先停止
    if (self.player) {
        [self.player stop];
        [self.player setRenderView:nil];
        self.player = nil;
    }
    self.currentConfig = config;

    // 🎯 创建主播放器
    NSString *token = [TokenGenerator generateStreamSignatureWithVhost:self.streamModel.vhost appId:self.streamModel.app channelId:config.streamId type:@"pull" key:APP_SECRET];
    SellyLiveVideoPlayer *player = [[SellyLiveVideoPlayer alloc] init];
    player.token = token;
    player.delegate = self;
    player.scaleMode = SellyPlayerScalingModeAspectFit;
    [player setRenderView:self.playerContainerView];
    
    // 确保初始音量为正常状态（未静音）
    if (player.playbackVolume == 0) {
        player.playbackVolume = 1.0;
    }
    self.player = player;
    
    [self.debugView appendLog:[NSString stringWithFormat:@"初始化主播放器: streamId=%@", config.streamId] withPrefix:@"🎬"];
    [self.debugView appendLog:[NSString stringWithFormat:@"协议: %@", config.protocol == SellyLiveMode_RTC ? @"RTC" : @"RTMP"] withPrefix:@"📡"];
    
    // 🎯 如果是 PK 模式，创建 PK 播放器
    if (self.isPKMode && self.pkConfig) {
        NSString *pkToken = [TokenGenerator generateStreamSignatureWithVhost:self.streamModel.vhost appId:self.streamModel.app channelId:self.pkConfig.streamId type:@"pull" key:APP_SECRET];
        SellyLiveVideoPlayer *pkPlayer = [[SellyLiveVideoPlayer alloc] init];
        pkPlayer.token = pkToken;
        pkPlayer.delegate = self;
        pkPlayer.scaleMode = SellyPlayerScalingModeAspectFit;
        [pkPlayer setRenderView:self.pkPlayerContainerView];
        
        if (pkPlayer.playbackVolume == 0) {
            pkPlayer.playbackVolume = 1.0;
        }
        self.pkPlayer = pkPlayer;
        
        [self.debugView appendLog:[NSString stringWithFormat:@"初始化 PK 播放器: streamId=%@", self.pkConfig.streamId] withPrefix:@"🎬"];
    }
    
    [self startPlay];
    
    // 设置控制按钮
    [self setupControlButtons];
}

- (void)startPlay {
    // 判断是 URL 还是 streamId
    SCPlayerConfig *config = self.currentConfig;
    if ([config.streamId hasPrefix:@"rtmp://"] ||
        [config.streamId hasPrefix:@"http://"] ||
        [config.streamId hasPrefix:@"https://"]) {
        // 完整 URL
        [self.player startPlayUrl:config.streamId];
    }
    else if (self.streamModel.url) {
        [self.player startPlayUrl:self.streamModel.url];
    }
    else {
        // StreamId，需要构造 SellyPlayerStreamInfo
        SellyPlayerStreamInfo *streamInfo = [[SellyPlayerStreamInfo alloc] init];
        streamInfo.streamId = config.streamId;
        streamInfo.protocol = config.protocol;
        [self.player startPlayStreamInfo:streamInfo];
    }
    
    // 🎯 如果是 PK 模式，启动 PK 播放器
    if (self.isPKMode && self.pkPlayer && self.pkConfig) {
        SellyPlayerStreamInfo *pkStreamInfo = [[SellyPlayerStreamInfo alloc] init];
        pkStreamInfo.streamId = self.pkConfig.streamId;
        pkStreamInfo.protocol = self.pkConfig.protocol;
        [self.pkPlayer startPlayStreamInfo:pkStreamInfo];
        
        [self.debugView appendLog:@"PK 播放器已启动" withPrefix:@"▶️"];
    }
}

- (void)setupControlButtons {
    __weak typeof(self) weakSelf = self;
    NSMutableArray *items = NSMutableArray.new;
    
    // 播放/暂停按钮（所有模式都显示）
    {
        SCLiveItemModel *model = SCLiveItemModel.new;
        model.type = SCLiveItemTypePlayPause;
        model.title = @"播放/暂停";
        model.isSelected = NO;
        model.clickCallback = ^{
            if (weakSelf.player.isPlaying) {
                [weakSelf pause];
            } else {
                [weakSelf start];
            }
            [weakSelf updatePlayPauseButtonState];
        };
        self.playPauseModel = model;
        [items addObject:model];
    }
    
    // 静音按钮（所有模式都显示）
    {
        SCLiveItemModel *model = SCLiveItemModel.new;
        model.type = SCLiveItemTypeVolume;
        model.title = @"静音";
        
        // 获取当前音量状态
        CGFloat currentVolume = self.player.playbackVolume;
        model.isSelected = (currentVolume == 0);
        
        NSLog(@"📢 静音按钮初始化 - 当前音量: %.2f, isSelected: %d", currentVolume, model.isSelected);
        
        model.clickCallback = ^{
            // 🎯 PK 模式：同时控制所有播放器的音量
            if (weakSelf.isPKMode) {
                BOOL shouldMute = (weakSelf.player.playbackVolume > 0);
                weakSelf.player.playbackVolume = shouldMute ? 0 : 1.0;
                weakSelf.pkPlayer.playbackVolume = shouldMute ? 0 : 1.0;
                NSLog(@"📢 PK 模式 - 所有播放器音量: %.2f", weakSelf.player.playbackVolume);
            } else {
                weakSelf.player.playbackVolume = 1 - weakSelf.player.playbackVolume;
                NSLog(@"📢 点击静音按钮 - 新音量: %.2f", weakSelf.player.playbackVolume);
            }
            [weakSelf updateMuteButtonState];
        };
        self.muteModel = model;
        [items addObject:model];
    }
    
    // 🎯 以下按钮仅在非 PK 模式下显示
    if (!self.isPKMode) {
        // 截图按钮
        {
            SCLiveItemModel *model = SCLiveItemModel.new;
            model.type = SCLiveItemTypeScreenshot;
            model.title = @"截图";
            model.clickCallback = ^{
                [weakSelf saveCurrentFrameToPhotoAlbum:weakSelf.player.getCurrentImage];
            };
            [items addObject:model];
        }
        
        // 画中画按钮
        {
            SCLiveItemModel *model = SCLiveItemModel.new;
            model.type = SCLiveItemTypePiP;
            model.title = @"画中画";
            model.isSelected = NO;
            model.clickCallback = ^{
                [weakSelf togglePiP];
            };
            self.pipModel = model;
            [items addObject:model];
        }
    }
    
    self.containerView.models = items;
    [self updatePlayPauseButtonState];
}

- (void)updatePlayPauseButtonState {
    self.playPauseModel.isSelected = self.player.isPlaying;
    // 刷新 UI
    self.containerView.models = self.containerView.models;
}

- (void)updateMuteButtonState {
    self.muteModel.isSelected = (self.player.playbackVolume == 0);
    // 刷新 UI
    self.containerView.models = self.containerView.models;
}

// 🎯 更新画中画按钮状态
- (void)updatePiPButtonState {
    if (@available(iOS 15.0, *)) {
        self.pipModel.isSelected = self.pipManager.pipActive;
    } else {
        self.pipModel.isSelected = NO;
    }
    // 刷新 UI
    self.containerView.models = self.containerView.models;
}

// 🎯 切换画中画
- (void)togglePiP {
    if (@available(iOS 15.0, *)) {
        if (!self.pipManager) {
            // 初始化画中画管理器
            self.pipManager = [[SellyCallPiPManager alloc] initWithRenderView:self.playerContainerView];
            [self.pipManager setupIfNeeded];
            [self.debugView appendLog:@"画中画初始化完成" withPrefix:@"🖼️"];
        }
        
        if (self.pipManager.pipPossible) {
            [self.pipManager togglePiP];
            [self.debugView appendLog:self.pipManager.pipActive ? @"开启画中画" : @"关闭画中画" withPrefix:@"🖼️"];
            // 延迟更新按钮状态，等待 PiP 状态变化
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                [self updatePiPButtonState];
            });
        } else {
            [self.debugView appendLog:@"当前设备不支持画中画" withPrefix:@"❌"];
            NSLog(@"当前设备不支持画中画");
        }
    } else {
        [self.debugView appendLog:@"iOS 15 以上才支持自定义画中画" withPrefix:@"❌"];
        NSLog(@"iOS 15 以上才支持自定义画中画");
    }
}

#pragma mark - Player Control

- (NSString *)stringFromPlayerState:(SellyPlayerState)state {
    switch (state) {
        case SellyPlayerStateIdle:
            return @"空闲 (Idle)";
        case SellyPlayerStateConnecting:
            return @"连接中 (Connecting)";
        case SellyPlayerStatePlaying:
            return @"播放中 (Playing)";
        case SellyPlayerStatePaused:
            return @"暂停 (Paused)";
        case SellyPlayerStateStoppedOrEnded:
            return @"已停止/结束 (Stopped/Ended)";
        case SellyPlayerStateFailed:
            return @"失败 (Failed)";
        default:
            return [NSString stringWithFormat:@"未知状态 (%ld)", (long)state];
    }
}

- (void)start {
    [self startPlay];
}

- (void)pause {
    [self.player stop];
    // 🎯 PK 模式：同时停止 PK 播放器
    if (self.isPKMode && self.pkPlayer) {
        [self.pkPlayer stop];
    }
}

#pragma mark - SellyPlayerManagerDelegate

- (void)player:(SellyLiveVideoPlayer *)player playbackDidFinished:(NSDictionary *)resultInfo {
    NSLog(@"Playback finished: %@", resultInfo);
    [self.debugView appendLog:@"播放已结束" withPrefix:@"⏹️"];
}

- (void)player:(SellyLiveVideoPlayer *)player playbackStateChanged:(SellyPlayerState)state {
    NSString *stateString = [self stringFromPlayerState:state];
    NSLog(@"🎬 播放状态变更: %@ (rawValue: %ld)", stateString, (long)state);
    
    // 添加到调试器
    [self.debugView appendLog:[NSString stringWithFormat:@"状态变更: %@", stateString] withPrefix:@"🎬"];
    
    // 🎯 当播放状态为 Playing 时，初始化画中画管理器
    if (state == SellyPlayerStatePlaying && !self.pipManager) {
        if (@available(iOS 15.0, *)) {
            self.pipManager = [[SellyCallPiPManager alloc] initWithRenderView:self.playerContainerView];
            [self.pipManager setupIfNeeded];
            [self.debugView appendLog:@"画中画已就绪" withPrefix:@"✅"];
        }
    }
    
    // 更新播放/暂停按钮状态
    [self updatePlayPauseButtonState];
}

- (void)player:(SellyLiveVideoPlayer *)player onError:(NSError *)error {
    NSLog(@"Player error: %@", error.localizedDescription);
    
    // 添加到调试器
    [self.debugView appendLog:[NSString stringWithFormat:@"错误: %@", error.localizedDescription] withPrefix:@"🔴"];
    
    // 显示错误提示
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"播放错误"
                                                                   message:error.localizedDescription
                                                            preferredStyle:UIAlertControllerStyleAlert];
    [alert addAction:[UIAlertAction actionWithTitle:@"重试" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        // 如果有 streamModel 就重新播放，否则显示配置界面
        if (self.currentConfig) {
            [self startPlayWithConfig:self.currentConfig];
        } else {
            [self showConfigView];
        }
    }]];
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        [self closeButtonTapped];
    }]];
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)player:(SellyLiveVideoPlayer *)player firstRemoteVideoFrame:(NSInteger)elapse {
    // 🎯 区分主播放器和 PK 播放器
    if (player == self.player) {
        NSLog(@"###主播放器视频首帧加载耗时 == %ldms", elapse);
        [self.debugView appendLog:[NSString stringWithFormat:@"主播放器视频首帧: %ldms", elapse] withPrefix:@"📹"];
        [self hideCoverImage];
    } else if (self.isPKMode && player == self.pkPlayer) {
        NSLog(@"###PK 播放器视频首帧加载耗时 == %ldms", elapse);
        [self.debugView appendLog:[NSString stringWithFormat:@"PK 播放器视频首帧: %ldms", elapse] withPrefix:@"📹"];
        [self hidePKCoverImage];
    }
}

- (void)player:(SellyLiveVideoPlayer *)player firstRemoteAudioFrame:(NSInteger)elapse {
    NSLog(@"###语音首帧加载耗时 == %ldms",elapse);
    [self.debugView appendLog:[NSString stringWithFormat:@"音频首帧: %ldms", elapse] withPrefix:@"🔊"];
}

- (void)player:(SellyLiveVideoPlayer *)player onFrameCatchingStart:(CGFloat)rate {
    NSLog(@"###追帧开始");
    [self.debugView appendLog:[NSString stringWithFormat:@"追帧开始 x%.1f倍",rate] withPrefix:@"⚡️"];
}

- (void)playerDidEndFrameCatching:(SellyLiveVideoPlayer *)player {
    NSLog(@"###追帧结束");
    [self.debugView appendLog:@"追帧结束" withPrefix:@"✅"];
}

//自定义渲染，实现画中画
- (BOOL)player:(SellyLiveVideoPlayer *)player onRenderVideoFrame:(SellyRTCVideoFrame *)videoFrame {
    if (self.isPKMode) {
        return true;
    }
    else {
        // 🎯 将视频帧喂给画中画管理器
        if (self.pipManager && videoFrame.pixelBuffer) {
            [self.pipManager feedVideoFrame:videoFrame];
        }
        // 返回 true 表示 SDK 继续默认渲染到播放器视图
        return false;
    }
}

- (void)player:(SellyLiveVideoPlayer *)player onDebugInfo:(SellyLivePlayerStats *)stats {

}

#pragma mark - Screenshot

- (void)saveCurrentFrameToPhotoAlbum:(UIImage *)image {
    if (!image) {
        NSLog(@"当前没有图像可保存");
        return;
    }

    // 检查权限
    PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
    if (status == PHAuthorizationStatusDenied || status == PHAuthorizationStatusRestricted) {
        NSLog(@"无权限访问相册，请到设置中开启权限");
        return;
    }

    if (status == PHAuthorizationStatusNotDetermined) {
        [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus newStatus) {
            if (newStatus == PHAuthorizationStatusAuthorized) {
                [self saveImage:image];
            }
        }];
    } else {
        [self saveImage:image];
    }
}

- (void)saveImage:(UIImage *)image {
    UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
}

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
    if (error) {
        NSLog(@"保存失败：%@", error.localizedDescription);
    } else {
        NSLog(@"已保存当前视频帧至相册");
    }
}

#pragma mark - Lazy Loading

- (UIView *)playerContainerView {
    if (!_playerContainerView) {
        _playerContainerView = [[UIView alloc] init];
        _playerContainerView.backgroundColor = [UIColor blackColor];
    }
    return _playerContainerView;
}

// 🎯 PK 播放器容器
- (UIView *)pkPlayerContainerView {
    if (!_pkPlayerContainerView) {
        _pkPlayerContainerView = [[UIView alloc] init];
        _pkPlayerContainerView.backgroundColor = [UIColor blackColor];
    }
    return _pkPlayerContainerView;
}

- (SCLiveItemContainerView *)containerView {
    if (!_containerView) {
        _containerView = [[SCLiveItemContainerView alloc] init];
    }
    return _containerView;
}

#pragma mark - Lifecycle

- (void)dealloc {
    [UIApplication sharedApplication].idleTimerDisabled = NO;
    NSLog(@"###%@ dealloc", NSStringFromClass(self.class));
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    // 恢复导航栏
    self.navigationController.navigationBarHidden = NO;
    
    // 退出页面时彻底销毁 PiP，释放旧 controller，下次进入时重新创建
    [self.pipManager invalidate];
    self.pipManager = nil;
}

@end