//
//  AVHomeViewController.m
//  AVDemo
//

#import "AVHomeViewController.h"
#import <Kiwi/Kiwi.h>
#import "SCLivePusherViewController.h"
#import "SCLiveVideoPlayerViewController.h"
#import "SCVodVideoPlayerViewController.h"
#import "AVConfigManager.h"
#import "AVConstants.h"
#import "AVLiveStreamModel.h"
#import "AVLiveStreamCell.h"
#import "SCPlayerConfigView.h"
#import <AFNetworking/AFNetworking.h>
#import <AFNetworking/UIImageView+AFNetworking.h>
#import <YYModel/YYModel.h>

@interface AVHomeViewController () <UICollectionViewDelegate, UICollectionViewDataSource>
@property (nonatomic, strong) UIView *headerView;
@property (nonatomic, strong) NSArray<UIButton *> *headerButtons;
@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, strong) NSArray<AVLiveStreamModel *> *liveStreams;
@property (nonatomic, strong) UIRefreshControl *refreshControl;
@property (nonatomic, strong) AFHTTPSessionManager *sessionManager;
@end

@implementation AVHomeViewController

static NSString * const kLiveStreamCellIdentifier = @"LiveStreamCell";
static NSString * const kLiveListAPIURL = @"http://rtmp.sellycloud.io:8089/live/sdk/alive-list";

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor systemBackgroundColor];
    self.title = @"首页";
    
    const char *kiwiAppkey = "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";
    [SellyCloudManager.sharedInstance startWithVHost:V_HOST appName:APP_ID];
    //初始化洋葱盾相关，业务层调用 Kiwi 后将地址传给 SDK
    [Kiwi Init:kiwiAppkey];
    char ip[40] = {0};
    char port[40] = {0};
    [Kiwi ServerToLocal:"123" :ip :sizeof(ip) :port :sizeof(port)];
    NSString *proxyAddress = [NSString stringWithFormat:@"http://%s:%s", ip, port];
    [SellyCloudManager setProxyAddress:proxyAddress];
    
    // 生成随机 userId: user + 3位随机数字 (001-999)
    NSInteger randomNum = arc4random_uniform(999) + 1; // 生成 1-999 的随机数
    SellyCloudManager.sharedInstance.userId = [NSString stringWithFormat:@"user%03ld", (long)randomNum]; // %03ld 保证3位数，不足补0

    // 初始化数据
    self.liveStreams = [NSMutableArray array];
    
    // 设置 AFNetworking
    self.sessionManager = [AFHTTPSessionManager manager];
    self.sessionManager.responseSerializer = [AFJSONResponseSerializer serializer];
    self.sessionManager.requestSerializer.timeoutInterval = 10;
    
    [self setupHeaderButtons];
    [self setupCollectionView];
    
    // 首次加载数据
    [self fetchLiveStreams];
}

- (void)viewWillLayoutSubviews {
    [super viewWillLayoutSubviews];
    // CollectionView 会自动根据 layout 调整
}

#pragma mark - Setup UI

- (void)setupHeaderButtons {
    // Create 2 feature buttons
    NSArray *buttonConfigs = @[
        @{@"title": @"开始直播", @"icon": @"antenna.radiowaves.left.and.right", @"action": @"livePushTapped"},
        @{@"title": @"自定义播放", @"icon": @"play.rectangle", @"action": @"livePullTapped"}
    ];

    // 创建 header 容器 View
    self.headerView = [[UIView alloc] init];
    self.headerView.backgroundColor = [UIColor systemBackgroundColor];
    [self.view addSubview:self.headerView];
    
    [self.headerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view.mas_safeAreaLayoutGuideTop);
        make.left.right.equalTo(self.view);
        make.height.equalTo(@80);
    }];
    
    // 创建按钮
    NSMutableArray<UIButton *> *buttons = [NSMutableArray array];
    for (NSInteger i = 0; i < buttonConfigs.count; i++) {
        NSDictionary *config = buttonConfigs[i];
        UIButton *button = [self createHeaderButtonWithConfig:config];
        [self.headerView addSubview:button];
        [buttons addObject:button];
        
        [button mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.equalTo(self.headerView);
            make.height.equalTo(@60);
            
            if (i == 0) {
                // 第一个按钮：左边距16，右边到中点偏左6（总间距12的一半）
                make.left.equalTo(self.headerView).offset(16);
                make.right.equalTo(self.headerView.mas_centerX).offset(-6);
            } else if (i == 1) {
                // 第二个按钮：左边从中点偏右6，右边距16
                make.left.equalTo(self.headerView.mas_centerX).offset(6);
                make.right.equalTo(self.headerView).offset(-16);
            }
        }];
    }
    self.headerButtons = [buttons copy];
}

- (void)setupCollectionView {
    // 创建 UICollectionViewFlowLayout
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.scrollDirection = UICollectionViewScrollDirectionVertical;
    layout.minimumInteritemSpacing = 12;
    layout.minimumLineSpacing = 16;
    layout.sectionInset = UIEdgeInsetsMake(16, 16, 16, 16);
    
    // 创建 CollectionView
    self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
    self.collectionView.backgroundColor = [UIColor systemBackgroundColor];
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    self.collectionView.alwaysBounceVertical = YES;
    
    // 注册自定义 Cell
    [self.collectionView registerClass:[AVLiveStreamCell class] forCellWithReuseIdentifier:kLiveStreamCellIdentifier];
    
    [self.view addSubview:self.collectionView];
    
    [self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.headerView.mas_bottom);
        make.left.right.bottom.equalTo(self.view);
    }];
    
    // 添加下拉刷新
    self.refreshControl = [[UIRefreshControl alloc] init];
    [self.refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
    self.collectionView.refreshControl = self.refreshControl;
}

- (UIButton *)createHeaderButtonWithConfig:(NSDictionary *)config {
    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    button.backgroundColor = [UIColor systemBlueColor];
    button.layer.cornerRadius = 10;
    button.clipsToBounds = YES;

    // Create icon and title
    UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage systemImageNamed:config[@"icon"]]];
    iconView.tintColor = [UIColor whiteColor];
    iconView.contentMode = UIViewContentModeScaleAspectFit;

    UILabel *titleLabel = [[UILabel alloc] init];
    titleLabel.text = config[@"title"];
    titleLabel.textColor = [UIColor whiteColor];
    titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightSemibold];
    titleLabel.textAlignment = NSTextAlignmentCenter;

    [button addSubview:iconView];
    [button addSubview:titleLabel];

    [iconView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(button);
        make.centerY.equalTo(button).offset(-10);
        make.width.height.equalTo(@28);
    }];
    
    [titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(button);
        make.top.equalTo(iconView.mas_bottom).offset(4);
        make.left.greaterThanOrEqualTo(button).offset(8);
        make.right.lessThanOrEqualTo(button).offset(-8);
    }];

    SEL action = NSSelectorFromString(config[@"action"]);
    [button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];

    return button;
}

#pragma mark - Network Request

- (void)fetchLiveStreams {
    __weak typeof(self) weakSelf = self;
    
    [self.sessionManager GET:kLiveListAPIURL parameters:nil headers:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, NSDictionary   *responseObject) {
        __strong typeof(weakSelf) strongSelf = weakSelf;
        if (!strongSelf) return;
        NSLog(@"%@",responseObject);
        [strongSelf.refreshControl endRefreshing];
        // 解析数据
        strongSelf.liveStreams = [NSArray yy_modelArrayWithClass:AVLiveStreamModel.class json:responseObject[@"list"]];
        
        NSLog(@"✅ 成功获取 %ld 个直播流", (long)strongSelf.liveStreams.count);
        
        // 刷新 UI
        [strongSelf.collectionView reloadData];
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        __strong typeof(weakSelf) strongSelf = weakSelf;
        if (!strongSelf) return;
        
        [strongSelf.refreshControl endRefreshing];
        
        NSLog(@"❌ 网络请求失败: %@", error.localizedDescription);
        
        // 显示错误提示
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"加载失败"
                                                                       message:[NSString stringWithFormat:@"无法获取直播列表: %@", error.localizedDescription]
                                                                preferredStyle:UIAlertControllerStyleAlert];
        [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
        [strongSelf presentViewController:alert animated:YES completion:nil];
    }];
}

- (void)handleRefresh:(UIRefreshControl *)refreshControl {
    [self fetchLiveStreams];
}

#pragma mark - UICollectionViewDataSource

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return self.liveStreams.count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    AVLiveStreamCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kLiveStreamCellIdentifier forIndexPath:indexPath];
    
    AVLiveStreamModel *model = self.liveStreams[indexPath.item];
    
    // 配置 Cell
    [cell configureWithModel:model];
    
    return cell;
}

#pragma mark - UICollectionViewDelegateFlowLayout

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)layout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    // 每行显示 2 个，间距 12pt，左右边距各 16pt
    CGFloat totalHorizontalPadding = 16 * 2 + 12; // left + right + middle spacing
    CGFloat availableWidth = collectionView.bounds.size.width - totalHorizontalPadding;
    CGFloat itemWidth = availableWidth / 2.0;
    
    // 缩略图宽高比 3:4
    CGFloat thumbnailHeight = itemWidth * (4.0 / 3.0);
    
    // 计算总高度：
    // thumbnailHeight + 8 (spacing) + 17 (nameLabel) + 4 (spacing) + 16 (infoContainer) + 8 (bottom padding)
    CGFloat itemHeight = thumbnailHeight + 8 + 17 + 4 + 16 + 8;
    
    return CGSizeMake(itemWidth, itemHeight);
}

#pragma mark - UICollectionViewDelegate

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    [collectionView deselectItemAtIndexPath:indexPath animated:YES];
    
    AVLiveStreamModel *model = self.liveStreams[indexPath.item];
    
    NSLog(@"🎬 点击播放 - stream: %@, protocol: %@", model.displayName, model.play_protocol);
    
    // 直接使用模型跳转到播放器
    SCLiveVideoPlayerViewController *vc = [[SCLiveVideoPlayerViewController alloc] initWithLiveStream:model];
    vc.hidesBottomBarWhenPushed = YES;
    vc.modalPresentationStyle = UIModalPresentationFullScreen;
    [self.navigationController pushViewController:vc animated:YES];
}

#pragma mark - Button Actions

- (void)livePushTapped {
    // 创建 action sheet 让用户选择推流协议
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"开始直播"
                                                                   message:@"请选择推流协议"
                                                            preferredStyle:UIAlertControllerStyleActionSheet];
    
    // RTC 协议
    UIAlertAction *rtcAction = [UIAlertAction actionWithTitle:@"RTC 协议"
                                                        style:UIAlertActionStyleDefault
                                                      handler:^(UIAlertAction * _Nonnull action) {
        [self startLivePushWithProtocol:AVStreamProtocolRTC];
    }];
    [alert addAction:rtcAction];
    
    // RTMP 协议
    UIAlertAction *rtmpAction = [UIAlertAction actionWithTitle:@"RTMP 协议"
                                                         style:UIAlertActionStyleDefault
                                                       handler:^(UIAlertAction * _Nonnull action) {
        [self startLivePushWithProtocol:AVStreamProtocolRTMP];
    }];
    [alert addAction:rtmpAction];
    
    // 取消按钮
    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消"
                                                           style:UIAlertActionStyleCancel
                                                         handler:nil];
    [alert addAction:cancelAction];
    
    // 在 iPad 上需要设置 popoverPresentationController
    if (alert.popoverPresentationController) {
        alert.popoverPresentationController.sourceView = self.view;
        alert.popoverPresentationController.sourceRect = CGRectMake(self.view.bounds.size.width / 2.0,
                                                                     self.view.bounds.size.height / 2.0,
                                                                     1.0, 1.0);
        alert.popoverPresentationController.permittedArrowDirections = 0;
    }
    
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)startLivePushWithProtocol:(AVStreamProtocol)protocol {
    SCLivePusherViewController *vc = [[SCLivePusherViewController alloc] init];
    vc.videoConfig = [[[AVConfigManager sharedManager] globalConfig] copy];
    
    // 默认使用竖屏（用户可以在直播页面通过旋转按钮切换）
    vc.videoConfig.outputImageOrientation = UIInterfaceOrientationPortrait;
    
    // 设置推流协议
    vc.protocol = protocol;
    
    // 隐藏底部 TabBar
    vc.hidesBottomBarWhenPushed = YES;
    
    [self.navigationController pushViewController:vc animated:YES];
    
    NSLog(@"开始直播推流，协议: %@", AVStreamProtocolString(protocol));
}

- (void)livePullTapped {
    // 弹出配置界面，让用户输入流信息
    SCPlayerConfigView *configView = [[SCPlayerConfigView alloc] init];
    __weak typeof(self) weakSelf = self;
    [configView showInViewController:self callback:^(SCPlayerConfig *config) {
        // 根据配置创建 AVLiveStreamModel
        AVLiveStreamModel *liveStream = [[AVLiveStreamModel alloc] init];
        liveStream.vhost = V_HOST;
        liveStream.app = APP_ID;
        liveStream.stream = config.streamId;
        liveStream.preview_image = @"";
        liveStream.duration = 0;
        liveStream.startTime = [[NSDate date] timeIntervalSince1970];
        
        // 根据协议类型设置 playProtocol
        switch (config.protocol) {
            case SellyLiveMode_RTMP:
                liveStream.play_protocol = @"rtmp";
                break;
            case SellyLiveMode_RTC:
                liveStream.play_protocol = @"rtc";
                break;
            default:
                liveStream.play_protocol = @"rtmp";
                break;
        }
        
        //这里仅做示例，实际上判断是直播还是点播
        if ([liveStream.stream.lowercaseString hasSuffix:@".mp4"]) {
            // 跳转到点播播放器
            SCVodVideoPlayerViewController *vc = [[SCVodVideoPlayerViewController alloc] initWithLiveStream:liveStream];
            vc.hidesBottomBarWhenPushed = YES;
            vc.modalPresentationStyle = UIModalPresentationFullScreen;
            [weakSelf.navigationController pushViewController:vc animated:YES];
        }
        else {
            // 跳转到直播播放器
            SCLiveVideoPlayerViewController *vc = [[SCLiveVideoPlayerViewController alloc] initWithLiveStream:liveStream];
            vc.hidesBottomBarWhenPushed = YES;
            vc.modalPresentationStyle = UIModalPresentationFullScreen;
            [weakSelf.navigationController pushViewController:vc animated:YES];
        }
        
    }];
}

#pragma mark - Orientation Support (强制只支持竖屏)

- (BOOL)shouldAutorotate {
    return YES;  // 允许旋转，但只支持竖屏
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
    return UIInterfaceOrientationPortrait;
}

@end