//
//  JXHomeViewController.m
//  AICity
//
//  Created by TogetherWatch on 2025-10-13.
//

#import "JXHomeViewController.h"
#import "JXAPIService.h"
#import "JXCacheManager.h"
#import "JXDetailViewController.h"

@interface JXHomeViewController () <UICollectionViewDelegate, UICollectionViewDataSource>

@property (nonatomic, strong) UICollectionView *dramaCollectionView;
@property (nonatomic, strong) UIRefreshControl *refreshControl;

@property (nonatomic, strong) NSArray *dramas;
@property (nonatomic, assign) NSInteger currentPage;

@end

@implementation JXHomeViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    NSLog(@"🔴 🔴 🔴 JXHomeViewController viewDidLoad 被调用！🔴 🔴 🔴");
    
    self.view.backgroundColor = [UIColor blackColor];
    self.title = @"短剧";
    
    NSLog(@"🔴 设置背景和标题完成");
    
    self.currentPage = 1;
    
    NSLog(@"🔴 准备调用 setupUI...");
    [self setupUI];
    NSLog(@"🔴 setupUI 调用完成");
    
    NSLog(@"🔴 准备调用 loadData...");
    [self loadData];
    NSLog(@"🔴 loadData 调用完成");
    
    NSLog(@"🔴 🔴 🔴 JXHomeViewController viewDidLoad 完成！🔴 🔴 🔴");
}

- (void)setupUI {
    NSLog(@"🟠 setupUI 开始");
    
    // 创建全屏纵向滚动的CollectionView（每个短剧占满屏幕）
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.scrollDirection = UICollectionViewScrollDirectionVertical;
    layout.itemSize = CGSizeMake(self.view.bounds.size.width, self.view.bounds.size.height);
    layout.minimumLineSpacing = 0;
    layout.minimumInteritemSpacing = 0;
    
    NSLog(@"🟠 Layout 创建完成，itemSize: %.0f x %.0f", layout.itemSize.width, layout.itemSize.height);
    
    self.dramaCollectionView = [[UICollectionView alloc] initWithFrame:self.view.bounds 
                                                   collectionViewLayout:layout];
    self.dramaCollectionView.backgroundColor = [UIColor blackColor];
    self.dramaCollectionView.delegate = self;
    self.dramaCollectionView.dataSource = self;
    self.dramaCollectionView.pagingEnabled = YES;
    self.dramaCollectionView.showsVerticalScrollIndicator = NO;
    
    NSLog(@"🟠 CollectionView 创建完成，frame: %@", NSStringFromCGRect(self.dramaCollectionView.frame));
    
    [self.dramaCollectionView registerClass:[UICollectionViewCell class] 
                  forCellWithReuseIdentifier:@"DramaCell"];
    
    NSLog(@"🟠 Cell类注册完成");
    
    // 添加下拉刷新
    self.refreshControl = [[UIRefreshControl alloc] init];
    [self.refreshControl addTarget:self 
                            action:@selector(handleRefresh) 
                  forControlEvents:UIControlEventValueChanged];
    [self.dramaCollectionView addSubview:self.refreshControl];
    
    NSLog(@"🟠 刷新控件添加完成");
    
    // 添加到视图
    [self.view addSubview:self.dramaCollectionView];
    
    NSLog(@"🟠 CollectionView 添加到主视图");
    
    // 设置约束
    self.dramaCollectionView.translatesAutoresizingMaskIntoConstraints = NO;
    [NSLayoutConstraint activateConstraints:@[
        [self.dramaCollectionView.topAnchor constraintEqualToAnchor:self.view.topAnchor],
        [self.dramaCollectionView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.dramaCollectionView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.dramaCollectionView.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor]
    ]];
    
    NSLog(@"🟠 约束设置完成");
    NSLog(@"🟠 setupUI 完成！");
}

- (void)loadData {
    // 加载短剧列表
    NSLog(@"📥 loadData 被调用");
    [self loadDramaListWithPage:1];
}

- (void)loadDramaListWithPage:(NSInteger)page {
    NSLog(@"📥 loadDramaListWithPage:%ld 被调用", (long)page);
    [[JXAPIService sharedService] getDramaListWithCategoryId:nil
                                                         page:page
                                                     pageSize:20
                                                      success:^(id responseObject) {
        NSDictionary *response = responseObject;
        NSLog(@"📥 API 响应: %@", response);
        if ([response[@"code"] intValue] == 200) {
            NSArray *dramasData = response[@"data"][@"items"];
            NSLog(@"📥 收到 %ld 条短剧数据", (long)dramasData.count);
            
            if (page == 1) {
                self.dramas = dramasData;
            } else {
                // 追加数据
                NSMutableArray *mutableDramas = [self.dramas mutableCopy];
                [mutableDramas addObjectsFromArray:dramasData];
                self.dramas = mutableDramas;
            }
            
            NSLog(@"📥 self.dramas 现在有 %ld 条数据", (long)self.dramas.count);
            [self.dramaCollectionView reloadData];
            NSLog(@"📥 CollectionView reloadData 已调用");
            
            // 缓存数据
            [[JXCacheManager sharedManager] saveDramaList:dramasData
                                              forCategory:@"all"
                                                     page:page];
        }
        
        [self.refreshControl endRefreshing];
    } failure:^(NSError *error) {
        NSLog(@"❌ 加载短剧列表失败: %@", error.localizedDescription);
        [self.refreshControl endRefreshing];
        
        // 尝试从缓存加载
        if (page == 1) {
            NSArray *cached = [[JXCacheManager sharedManager] getDramaListForCategory:@"all"
                                                                                 page:page];
            if (cached) {
                self.dramas = cached;
                [self.dramaCollectionView reloadData];
            }
        }
    }];
}

- (void)handleRefresh {
    self.currentPage = 1;
    [self loadData];
}

#pragma mark - UICollectionViewDataSource

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    NSInteger count = self.dramas.count;
    NSLog(@"📊 numberOfItemsInSection 被调用，返回 %ld 条数据", (long)count);
    return count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"DramaCell" 
                                                                            forIndexPath:indexPath];
    
    // 清理之前的子视图
    for (UIView *view in cell.contentView.subviews) {
        [view removeFromSuperview];
    }
    
    NSDictionary *drama = self.dramas[indexPath.item];
    
    // 背景色为黑色
    cell.contentView.backgroundColor = [UIColor blackColor];
    
    // 背景封面图 - 全屏
    UIImageView *backgroundImageView = [[UIImageView alloc] initWithFrame:cell.contentView.bounds];
    backgroundImageView.contentMode = UIViewContentModeScaleAspectFill;
    backgroundImageView.clipsToBounds = YES;
    // TODO: 加载drama[@"cover"]图片
    backgroundImageView.backgroundColor = [UIColor darkGrayColor];
    [cell.contentView addSubview:backgroundImageView];
    
    // 渐变遮罩层（从透明到黑色）
    UIView *maskView = [[UIView alloc] initWithFrame:cell.contentView.bounds];
    CAGradientLayer *gradientLayer = [CAGradientLayer layer];
    gradientLayer.frame = maskView.bounds;
    gradientLayer.colors = @[
        (id)[UIColor clearColor].CGColor,
        (id)[UIColor colorWithRed:0 green:0 blue:0 alpha:0.3].CGColor,
        (id)[UIColor colorWithRed:0 green:0 blue:0 alpha:0.7].CGColor
    ];
    gradientLayer.locations = @[@0, @0.5, @1.0];
    [maskView.layer addSublayer:gradientLayer];
    [cell.contentView addSubview:maskView];
    
    // 正中心的"查看全部"按钮
    UIButton *viewAllButton = [UIButton buttonWithType:UIButtonTypeCustom];
    CGFloat centerButtonWidth = 150;
    CGFloat centerButtonHeight = 50;
    CGFloat centerX = cell.contentView.bounds.size.width / 2;
    CGFloat centerY = cell.contentView.bounds.size.height / 2;
    viewAllButton.frame = CGRectMake(centerX - centerButtonWidth/2, centerY - centerButtonHeight/2, centerButtonWidth, centerButtonHeight);
    [viewAllButton setTitle:@"查看全部" forState:UIControlStateNormal];
    viewAllButton.backgroundColor = [UIColor whiteColor];
    viewAllButton.layer.cornerRadius = centerButtonHeight / 2;
    viewAllButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
    [viewAllButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [viewAllButton addTarget:self action:@selector(onViewAllClicked:) forControlEvents:UIControlEventTouchUpInside];
    [cell.contentView addSubview:viewAllButton];
    
    NSLog(@"🎯 正中心的'查看全部'按钮 frame: %@", NSStringFromCGRect(viewAllButton.frame));
    
    // 底部信息区域 - 距底部 60dp（为底部页签留空间）
    CGFloat bottomInfoHeight = 200;
    CGFloat bottomAreaY = cell.contentView.bounds.size.height - bottomInfoHeight - 60;
    UIView *bottomInfoView = [[UIView alloc] initWithFrame:CGRectMake(0, bottomAreaY, cell.contentView.bounds.size.width, bottomInfoHeight)];
    bottomInfoView.backgroundColor = [UIColor clearColor];
    [cell.contentView addSubview:bottomInfoView];
    
    NSLog(@"📱 Cell高度: %.0f, bottomAreaY: %.0f, bottomInfoView frame: %@", 
          cell.contentView.bounds.size.height, bottomAreaY, NSStringFromCGRect(bottomInfoView.frame));
    
    // 短剧标题
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(16, 0, bottomInfoView.bounds.size.width - 32, 60)];
    titleLabel.text = drama[@"title"];
    titleLabel.font = [UIFont boldSystemFontOfSize:24];
    titleLabel.textColor = [UIColor whiteColor];
    titleLabel.numberOfLines = 2;
    [bottomInfoView addSubview:titleLabel];
    
    // 短剧描述
    UILabel *descLabel = [[UILabel alloc] initWithFrame:CGRectMake(16, 65, bottomInfoView.bounds.size.width - 32, 60)];
    descLabel.text = drama[@"description"] ?: @"";
    descLabel.font = [UIFont systemFontOfSize:14];
    descLabel.textColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0.9];
    descLabel.numberOfLines = 3;
    [bottomInfoView addSubview:descLabel];
    
    // 作者信息
    UILabel *authorLabel = [[UILabel alloc] initWithFrame:CGRectMake(16, 130, bottomInfoView.bounds.size.width - 32, 20)];
    authorLabel.text = drama[@"author_info"] ?: @"";
    authorLabel.font = [UIFont systemFontOfSize:12];
    authorLabel.textColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0.8];
    [bottomInfoView addSubview:authorLabel];
    
    // "合集"按钮
    UIButton *collectionButton = [UIButton buttonWithType:UIButtonTypeCustom];
    collectionButton.frame = CGRectMake(16, 155, bottomInfoView.bounds.size.width - 32, 40);
    [collectionButton setTitle:@"合集 ⊞" forState:UIControlStateNormal];
    collectionButton.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0.2];
    collectionButton.layer.cornerRadius = 20;
    collectionButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
    [collectionButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [collectionButton addTarget:self action:@selector(onCollectionClicked:) forControlEvents:UIControlEventTouchUpInside];
    [bottomInfoView addSubview:collectionButton];
    
    return cell;
}

#pragma mark - UICollectionViewDelegate

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    // 不需要在这里处理，按钮回调会处理
}

#pragma mark - Button Actions

- (void)onViewAllClicked:(UIButton *)sender {
    // 获取按钮在Collection View中的位置
    CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.dramaCollectionView];
    NSIndexPath *indexPath = [self.dramaCollectionView indexPathForItemAtPoint:buttonPosition];
    
    if (indexPath) {
        NSDictionary *drama = self.dramas[indexPath.item];
        NSString *dramaId = drama[@"jx_drama_id"];
        NSLog(@"🎬 点击查看全部，dramaId: %@", dramaId);
        
        JXDetailViewController *detailVC = [[JXDetailViewController alloc] initWithDramaId:dramaId];
        [self.navigationController pushViewController:detailVC animated:YES];
    }
}

- (void)onCollectionClicked:(UIButton *)sender {
    // 获取按钮在Collection View中的位置
    CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.dramaCollectionView];
    NSIndexPath *indexPath = [self.dramaCollectionView indexPathForItemAtPoint:buttonPosition];
    
    if (indexPath) {
        NSDictionary *drama = self.dramas[indexPath.item];
        NSLog(@"🎬 点击合集，drama: %@", drama);
        
        // 显示合集选择菜单
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"选择合集"
                                                                       message:nil
                                                                preferredStyle:UIAlertControllerStyleActionSheet];
        
        UIAlertAction *currentAction = [UIAlertAction actionWithTitle:drama[@"title"]
                                                               style:UIAlertActionStyleDefault
                                                             handler:^(UIAlertAction *action) {
            NSLog(@"选择合集: %@", drama[@"title"]);
        }];
        [alert addAction:currentAction];
        
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消"
                                                              style:UIAlertActionStyleCancel
                                                            handler:nil];
        [alert addAction:cancelAction];
        
        [self presentViewController:alert animated:YES completion:nil];
    }
}

@end