//
//  JXCollectionViewController.m
//  AICity
//
//  Created by TogetherWatch on 2025-10-20.
//

#import "JXCollectionViewController.h"
#import "JXAPIService.h"
#import "JXDrama.h"
#import "JXEpisodeInfo.h"
#import "JXInteraction.h"
#import "JXShortDramaCell.h"
#import "videoItemsCell.h"
#import "videoItemsNavCell.h"
// Cell复用标识符
//static NSString * const kEpisodeCellIdentifier = @"JXEpisodeCell";

@interface JXCollectionViewController () <UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>

#pragma mark - UI组件
@property (nonatomic, strong) UIView *headerView;
@property (strong, nonatomic) UIImageView *headImg;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *statsLabel;
@property (nonatomic, strong) UIButton *closeButton;

@property (nonatomic, strong) UIView *rangePickerView;
@property (nonatomic, strong) UIButton *rangeButton1;
@property (nonatomic, strong) UIButton *rangeButton2;
@property (nonatomic, strong) UIButton *rangeButton3;

@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, strong) UICollectionView *collectionViewNav;
@property (strong, nonatomic) NSMutableArray *navArray;

#pragma mark - 数据
@property (nonatomic, copy) NSString *dramaId;
@property (nonatomic, strong) JXDrama *drama;
@property (nonatomic, strong) NSDictionary *pageData;
@property (nonatomic, strong) NSArray<JXEpisodeInfo *> *episodes;
@property (nonatomic, strong) NSArray<JXEpisodeInfo *> *filteredEpisodes;
@property (nonatomic, assign) NSInteger selectedRange;  // 0=全部, 1=1-50, 2=51-100
@end

@implementation JXCollectionViewController

#pragma mark - 初始化

- (instancetype)initWithDramaId:(NSString *)dramaId {
    self = [super init];
    if (self) {
        _dramaId = dramaId;
        _selectedRange = 0;
    }
    return self;
}

#pragma mark - 生命周期

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    self.pageData = [[NSDictionary alloc] init];
    [self setupUI];
    [self loadData];
}

#pragma mark - UI设置

- (void)setupUI {
    // 顶部标题栏
    [self setupHeader];
    
    // 集数范围选择器
//    [self setupRangePicker];
    [self setupCollectionViewnav];
    
    
    // 剧集列表
    [self setupCollectionView];
}

- (void)setupHeader {
    self.headerView = [[UIView alloc] init];
    self.headerView.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.headerView];
    
    
    //图片
    self.headImg = [[UIImageView alloc] init];
    self.headImg.image = [UIImage imageNamed:@"icon 2.1"];
    [self.headerView addSubview:self.headImg];
    
    // 标题
    self.titleLabel = [[UILabel alloc] init];
    self.titleLabel.text = @"合集";
    self.titleLabel.font = [UIFont boldSystemFontOfSize:18];
    self.titleLabel.textColor = [UIColor blackColor];
    [self.headerView addSubview:self.titleLabel];
    
    // 统计信息
    self.statsLabel = [[UILabel alloc] init];
    self.statsLabel.text = @"正在加载...";
    self.statsLabel.font = [UIFont systemFontOfSize:14];
    self.statsLabel.textColor = [UIColor grayColor];
    [self.headerView addSubview:self.statsLabel];
    
    // 关闭按钮
    self.closeButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.closeButton setImage:[UIImage systemImageNamed:@"xmark"] forState:UIControlStateNormal];
    self.closeButton.tintColor = [UIColor grayColor];
    [self.closeButton addTarget:self action:@selector(handleClose) forControlEvents:UIControlEventTouchUpInside];
    [self.headerView addSubview:self.closeButton];
    
    // 约束
    self.headerView.translatesAutoresizingMaskIntoConstraints = NO;
    self.headImg.translatesAutoresizingMaskIntoConstraints = NO;
    self.titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.statsLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.closeButton.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.headerView.topAnchor constraintEqualToAnchor:self.view.topAnchor],
        [self.headerView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.headerView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.headerView.heightAnchor constraintEqualToConstant:80],
        
        [self.headImg.topAnchor constraintEqualToAnchor:self.headerView.topAnchor constant:14.5],
        [self.headImg.leadingAnchor constraintEqualToAnchor:self.headerView.leadingAnchor constant:16],
        [self.headImg.widthAnchor constraintEqualToConstant:17],
        [self.headImg.heightAnchor constraintEqualToConstant:16.5],
        
        [self.titleLabel.topAnchor constraintEqualToAnchor:self.headerView.topAnchor constant:14.5],
        [self.titleLabel.leadingAnchor constraintEqualToAnchor:self.headerView.leadingAnchor constant:41],
        [self.titleLabel.heightAnchor constraintEqualToConstant:16.5],
        
        [self.statsLabel.topAnchor constraintEqualToAnchor:self.titleLabel.bottomAnchor constant:10],
        [self.statsLabel.leadingAnchor constraintEqualToAnchor:self.headerView.leadingAnchor constant:16],
        
        [self.closeButton.trailingAnchor constraintEqualToAnchor:self.headerView.trailingAnchor constant:-16],
        [self.closeButton.centerYAnchor constraintEqualToAnchor:self.titleLabel.centerYAnchor],
        [self.closeButton.widthAnchor constraintEqualToConstant:30],
        [self.closeButton.heightAnchor constraintEqualToConstant:30]
    ]];
}

- (void)setupRangePicker {
//    self.rangePickerView = [[UIView alloc] init];
//    self.rangePickerView.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
//    [self.view addSubview:self.rangePickerView];
    
//    // 全部
//    self.rangeButton1 = [self createRangeButtonWithTitle:@"全部" tag:0];
//    [self.rangePickerView addSubview:self.rangeButton1];
//    
//    // 1-50
//    self.rangeButton2 = [self createRangeButtonWithTitle:@"1-50集" tag:1];
//    [self.rangePickerView addSubview:self.rangeButton2];
//    
//    // 51-100
//    self.rangeButton3 = [self createRangeButtonWithTitle:@"51-100集" tag:2];
//    [self.rangePickerView addSubview:self.rangeButton3];
//    
//    // 默认选中"全部"
//    [self selectRangeButton:self.rangeButton1];
//    
//    // 约束
//    self.rangePickerView.translatesAutoresizingMaskIntoConstraints = NO;
//    self.rangeButton1.translatesAutoresizingMaskIntoConstraints = NO;
//    self.rangeButton2.translatesAutoresizingMaskIntoConstraints = NO;
//    self.rangeButton3.translatesAutoresizingMaskIntoConstraints = NO;
//    
//    [NSLayoutConstraint activateConstraints:@[
//        [self.rangePickerView.topAnchor constraintEqualToAnchor:self.headerView.bottomAnchor],
//        [self.rangePickerView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
//        [self.rangePickerView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
//        [self.rangePickerView.heightAnchor constraintEqualToConstant:50],
//        
//        [self.rangeButton1.leadingAnchor constraintEqualToAnchor:self.rangePickerView.leadingAnchor constant:16],
//        [self.rangeButton1.centerYAnchor constraintEqualToAnchor:self.rangePickerView.centerYAnchor],
//        [self.rangeButton1.widthAnchor constraintEqualToConstant:80],
//        [self.rangeButton1.heightAnchor constraintEqualToConstant:32],
//        
//        [self.rangeButton2.leadingAnchor constraintEqualToAnchor:self.rangeButton1.trailingAnchor constant:12],
//        [self.rangeButton2.centerYAnchor constraintEqualToAnchor:self.rangePickerView.centerYAnchor],
//        [self.rangeButton2.widthAnchor constraintEqualToConstant:80],
//        [self.rangeButton2.heightAnchor constraintEqualToConstant:32],
//        
//        [self.rangeButton3.leadingAnchor constraintEqualToAnchor:self.rangeButton2.trailingAnchor constant:12],
//        [self.rangeButton3.centerYAnchor constraintEqualToAnchor:self.rangePickerView.centerYAnchor],
//        [self.rangeButton3.widthAnchor constraintEqualToConstant:80],
//        [self.rangeButton3.heightAnchor constraintEqualToConstant:32]
//    ]];
}

//- (UIButton *)createRangeButtonWithTitle:(NSString *)title tag:(NSInteger)tag {
//    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
//    [button setTitle:title forState:UIControlStateNormal];
//    button.titleLabel.font = [UIFont systemFontOfSize:14];
//    button.layer.cornerRadius = 16;
//    button.layer.borderWidth = 1.0;
//    button.tag = tag;
//    [button addTarget:self action:@selector(handleRangeButtonTap:) forControlEvents:UIControlEventTouchUpInside];
//    return button;
//}
- (void)setupCollectionViewnav{
    
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
    layout.minimumLineSpacing = 6;
    layout.minimumInteritemSpacing = 6;
    layout.sectionInset = UIEdgeInsetsMake(0, 16, 0, 16);

    self.collectionViewNav = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
    self.collectionViewNav.backgroundColor = [UIColor whiteColor];
    self.collectionViewNav.delegate = self;
    self.collectionViewNav.dataSource = self;
    [self.collectionViewNav registerNib:[UINib nibWithNibName:NSStringFromClass(videoItemsNavCell.class) bundle:nil] forCellWithReuseIdentifier:NSStringFromClass(videoItemsNavCell.class)];
    [self.view addSubview:self.collectionViewNav];
    // 约束
    self.collectionViewNav.translatesAutoresizingMaskIntoConstraints = NO;
    [NSLayoutConstraint activateConstraints:@[
        [self.collectionViewNav.topAnchor constraintEqualToAnchor:self.headerView.bottomAnchor],
        [self.collectionViewNav.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.collectionViewNav.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.collectionViewNav.heightAnchor constraintEqualToConstant:31],
    ]];
}
- (void)setupCollectionView {
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.scrollDirection = UICollectionViewScrollDirectionVertical;
    layout.minimumLineSpacing = 0;
    layout.minimumInteritemSpacing = 0;
    layout.sectionInset = UIEdgeInsetsMake(16, 16, 16, 16);
    
    self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
    self.collectionView.backgroundColor = [UIColor whiteColor];
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    [self.collectionView registerNib:[UINib nibWithNibName:NSStringFromClass(videoItemsCell.class) bundle:nil] forCellWithReuseIdentifier:NSStringFromClass(videoItemsCell.class)];
    [self.view addSubview:self.collectionView];
    
    // 约束
    self.collectionView.translatesAutoresizingMaskIntoConstraints = NO;
    [NSLayoutConstraint activateConstraints:@[
        [self.collectionView.topAnchor constraintEqualToAnchor:self.collectionViewNav.bottomAnchor],
        [self.collectionView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.collectionView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.collectionView.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor]
    ]];
}

#pragma mark - 数据加载

- (void)loadData {
    // 获取短剧详情和剧集列表
    [[JXAPIService sharedService] getDramaDetailWithDramaId:self.dramaId
                                                     success:^(id response) {
        NSDictionary *dramaDict = response[@"data"];
        
        // 解析短剧信息
        self.drama = [[JXDrama alloc] initWithDictionary:dramaDict[@"drama"]];
        
        // 解析剧集列表
        NSArray *episodesArray = dramaDict[@"episodes"];
        NSMutableArray *episodes = [NSMutableArray array];
        for (NSDictionary *dict in episodesArray) {
            JXEpisodeInfo *episode = [[JXEpisodeInfo alloc] initWithDictionary:dict];
            [episodes addObject:episode];
        }
        self.episodes = episodes;
        
        // 更新UI
        [self updateUI];
        [self filterEpisodesByRange:self.selectedRange];
        
    } failure:^(NSError *error) {
        NSLog(@"[JXCollection] 加载失败: %@", error.localizedDescription);
    }];
}

- (void)updateUI {
//    self.titleLabel.text = self.drama.title;
//    self.statsLabel.text = [NSString stringWithFormat:@"共%ld集 · %@ 播放",
//                           (long)self.drama.totalEpisodes,
//                           [JXShortDramaCell formattedCountWithCount:self.drama.viewCount]];
        self.statsLabel.text = [NSString stringWithFormat:@"%@ 播放 · 已更新至%ld集", [JXShortDramaCell formattedCountWithCount:self.drama.viewCount], (long)self.drama.totalEpisodes];
}

#pragma mark - 筛选逻辑

- (void)filterEpisodesByRange:(NSInteger)range {
    NSInteger all = self.drama.totalEpisodes;
    if (all == 0) {
        return;
    }
    for (int i = 1; i < all; i=i+20) {
        [self.navArray addObject: [NSString stringWithFormat:@"%d",i]];
    }
    NSString *str = self.navArray[range];
    NSPredicate *predicate;
    if (self.drama.totalEpisodes < 20) {
        predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"episodeNumber >= %@ AND episodeNumber <= %ld",str,self.drama.totalEpisodes]];
    }else{
        predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"episodeNumber >= %@ AND episodeNumber <= %d",str,str.intValue+20]];
    }
    self.filteredEpisodes = [self.episodes filteredArrayUsingPredicate:predicate];
    [self.collectionViewNav reloadData];
    [self.collectionView reloadData];
}


- (void)selectRangeButton:(UIButton *)button {
    // 重置所有按钮
    for (UIButton *btn in @[self.rangeButton1, self.rangeButton2, self.rangeButton3]) {
        btn.selected = NO;
        [btn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
        btn.backgroundColor = [UIColor whiteColor];
        btn.layer.borderColor = [UIColor lightGrayColor].CGColor;
    }
    
    // 选中当前按钮
    button.selected = YES;
    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    button.backgroundColor = [UIColor systemBlueColor];
    button.layer.borderColor = [UIColor systemBlueColor].CGColor;
}

#pragma mark - UICollectionViewDataSource

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    if (collectionView == self.collectionViewNav) {
        return  self.navArray.count;
    }
    return self.filteredEpisodes.count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    
   
    
    if (collectionView == self.collectionViewNav) {
        videoItemsNavCell *cell1 = [collectionView dequeueReusableCellWithReuseIdentifier:NSStringFromClass(videoItemsNavCell.class) forIndexPath:indexPath];
        cell1.layer.cornerRadius = 5;
        if (self.selectedRange == indexPath.row) {
            cell1.backgroundColor = [UIColor colorWithRed:255/255.0 green:240/255.0 blue:234/255.0 alpha:1];
            cell1.labelT.textColor = [UIColor colorWithRed:255/255.0 green:112/255.0 blue:48/255.0 alpha:1];
            
        }else{
            cell1.backgroundColor = [UIColor colorWithRed:247/255.0 green:247/255.0 blue:247/255.0 alpha:1];
            cell1.labelT.textColor = [UIColor colorWithRed:140/255.0 green:140/255.0 blue:140/255.0 alpha:1];
        }
        
        NSString *str = self.navArray[indexPath.row];
        if (indexPath.row == self.navArray.count -1) {
            cell1.labelT.text = [NSString stringWithFormat:@"%@-%ld",str,self.drama.totalEpisodes];
        }else{
            cell1.labelT.text = [NSString stringWithFormat:@"%@-%d",str,str.intValue+19];
        }
       
        return cell1;
    }
    
    
    videoItemsCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:NSStringFromClass(videoItemsCell.class) forIndexPath:indexPath];
    JXEpisodeInfo *episode = self.filteredEpisodes[indexPath.item];
    cell.viewVIP.hidden = !episode.isPaid;
    cell.btnVIP.hidden = !episode.isPaid;
    cell.labelT.text = episode.title;
    cell.labelView.text = [NSString stringWithFormat:@"%lld",episode.likeCount];
    [cell.imgH sd_setImageWithURL:[NSURL URLWithString:episode.thumbnailUrl]];
    cell.labelTime.text = [self getMMSSFromSS:episode.duration];
    cell.vipClicked = ^{
      //去会员
        [MBProgressHUD showMessage:@"维护中..."];
    };
    cell.playClicked = ^{
        if ([self.delegate respondsToSelector:@selector(collectionViewControllerDidSelectEpisode:)]) {
            [self.delegate collectionViewControllerDidSelectEpisode:[NSString stringWithFormat:@"%ld",episode.episodeNumber]];
        }
        
        [self dismissViewControllerAnimated:YES completion:nil];
    };
//    JXEpisodeInfo *episode = self.filteredEpisodes[indexPath.item];
    
    // 临时简单展示（后续可创建自定义Cell）
//    cell.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
//    cell.layer.cornerRadius = 8;
    
    // 清除旧标签
//    for (UIView *subview in cell.contentView.subviews) {
//        [subview removeFromSuperview];
//    }
//    
//    // 第X集标签
//    UILabel *label = [[UILabel alloc] init];
//    label.text = [NSString stringWithFormat:@"第%ld集", (long)episode.episodeNumber];
//    label.font = [UIFont boldSystemFontOfSize:14];
//    label.textColor = [UIColor blackColor];
//    label.textAlignment = NSTextAlignmentCenter;
//    [cell.contentView addSubview:label];
//    
//    // VIP标识
//    if (episode.isPaid) {
//        UILabel *vipLabel = [[UILabel alloc] init];
//        vipLabel.text = @"VIP";
//        vipLabel.font = [UIFont boldSystemFontOfSize:10];
//        vipLabel.textColor = [UIColor systemOrangeColor];
//        vipLabel.textAlignment = NSTextAlignmentCenter;
//        [cell.contentView addSubview:vipLabel];
//        
//        vipLabel.translatesAutoresizingMaskIntoConstraints = NO;
//        [NSLayoutConstraint activateConstraints:@[
//            [vipLabel.topAnchor constraintEqualToAnchor:cell.contentView.topAnchor constant:4],
//            [vipLabel.trailingAnchor constraintEqualToAnchor:cell.contentView.trailingAnchor constant:-4]
//        ]];
//    }
//    
//    // 约束
//    label.translatesAutoresizingMaskIntoConstraints = NO;
//    [NSLayoutConstraint activateConstraints:@[
//        [label.centerXAnchor constraintEqualToAnchor:cell.contentView.centerXAnchor],
//        [label.centerYAnchor constraintEqualToAnchor:cell.contentView.centerYAnchor]
//    ]];
    
    return cell;
}
-(NSString *)getMMSSFromSS:(float)total{
    int fen = (int)(total / 60 ) % 60;
    int miao = (int)total % 60;
    int shi = (int)(total / 3600);
  
    NSString *format_time = [NSString stringWithFormat:@"%@%@%@",shi>0 ?[NSString stringWithFormat:@"%02d:",shi]:@"",[NSString stringWithFormat:@"%02d:",fen],[NSString stringWithFormat:@"%02d",miao]];
    return format_time;
}
#pragma mark - UICollectionViewDelegateFlowLayout

- (CGSize)collectionView:(UICollectionView *)collectionView
                  layout:(UICollectionViewLayout *)collectionViewLayout
  sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    if (collectionView == self.collectionViewNav) {
        return CGSizeMake(60, 31);
    }
    CGFloat width = collectionView.bounds.size.width;  // 3列
    return CGSizeMake(width, 93);
}

#pragma mark - UICollectionViewDelegate

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    if (collectionView == self.collectionViewNav) {
        
        self.selectedRange = indexPath.row;
        
        NSString *str = self.navArray[indexPath.row];
        NSPredicate *predicate;
        if (indexPath.row == self.navArray.count -1) {
            predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"episodeNumber >= %@ AND episodeNumber <= %ld",str,self.drama.totalEpisodes]];
        }else{
            predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"episodeNumber >= %@ AND episodeNumber <= %d",str,str.intValue+20]];
        }
        self.filteredEpisodes = [self.episodes filteredArrayUsingPredicate:predicate];
        [self.collectionViewNav reloadData];
        [self.collectionView reloadData];
        return ;
    }
//    if (self.filteredEpisodes.count > 0 &&  (self.filteredEpisodes.count >= indexPath.item)) {
//        JXEpisodeInfo *episode = self.filteredEpisodes[indexPath.item];
//        
//        NSLog(@"[JXCollection] 选择剧集: %ld", (long)episode.episodeNumber);
//        
//        if ([self.delegate respondsToSelector:@selector(collectionViewControllerDidSelectEpisode:)]) {
//            [self.delegate collectionViewControllerDidSelectEpisode:episode.episodeId];
//        }
//        
//        [self dismissViewControllerAnimated:YES completion:nil];
//    }else{
//        //测试一下
//        
//        if ([self.delegate respondsToSelector:@selector(collectionViewControllerDidSelectEpisode:)]) {
//            [self.delegate collectionViewControllerDidSelectEpisode:@"1"];
//        }
//        
//        [self dismissViewControllerAnimated:YES completion:nil];
//    }
    
}

- (NSMutableArray *)navArray{
    if (!_navArray) {
        _navArray = [NSMutableArray array];
    }
    return _navArray;
}
- (NSDictionary *)pageData{
    if (!_pageData) {
        _pageData = [NSDictionary dictionary];
    }
    return _pageData;
}
#pragma mark - 关闭

- (void)handleClose {
    [self dismissViewControllerAnimated:YES completion:nil];
}

@end