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

#import "JXSearchViewController.h"
#import "JXAPIService.h"
#import "JXDrama.h"

// Cell复用标识符
static NSString * const kSearchResultCellIdentifier = @"SearchResultCell";
static NSString * const kHotRecommendCellIdentifier = @"HotRecommendCell";

@interface JXSearchViewController () <UITableViewDelegate, UITableViewDataSource, UITextFieldDelegate>

#pragma mark - UI组件
// 顶部搜索栏
@property (nonatomic, strong) UIView *searchBarContainer;
@property (nonatomic, strong) UIButton *backButton;
@property (nonatomic, strong) UITextField *searchTextField;
@property (nonatomic, strong) UIButton *searchButton;

// 搜索历史区域
@property (nonatomic, strong) UIView *searchHistoryContainer;
@property (nonatomic, strong) UILabel *historyTitleLabel;
@property (nonatomic, strong) UIButton *clearHistoryButton;
@property (nonatomic, strong) UIView *historyTagsContainer;

// 热门推荐区域
@property (nonatomic, strong) UIView *hotDiscoverContainer;
@property (nonatomic, strong) UILabel *hotDiscoverTitleLabel;
@property (nonatomic, strong) UIView *hotDiscoverListContainer;

// 热门推荐列表（未搜索时显示）
@property (nonatomic, strong) UIView *hotRecommendContainer;
@property (nonatomic, strong) UITableView *hotRecommendTableView;

// 搜索结果列表
@property (nonatomic, strong) UIView *searchResultContainer;
@property (nonatomic, strong) UITableView *searchResultTableView;
@property (nonatomic, strong) UIView *emptyView;

#pragma mark - 数据
@property (nonatomic, copy) NSString *currentKeyword;
@property (nonatomic, strong) NSMutableArray<NSString *> *searchHistory;
@property (nonatomic, strong) NSArray<NSString *> *hotDiscover;
@property (nonatomic, strong) NSMutableArray<JXDrama *> *hotRecommendList;
@property (nonatomic, strong) NSMutableArray<JXDrama *> *searchResultList;

#pragma mark - 状态
@property (nonatomic, assign) BOOL isSearching;
@property (nonatomic, assign) BOOL isLoadingHotRecommend;
@property (nonatomic, assign) BOOL isLoadingSearchResult;
@property (nonatomic, assign) NSInteger hotRecommendPage;
@property (nonatomic, assign) NSInteger searchResultPage;

@end

@implementation JXSearchViewController

#pragma mark - 初始化

- (instancetype)initWithKeyword:(NSString *)keyword {
    self = [super init];
    if (self) {
        _currentKeyword = keyword;
        _searchHistory = [NSMutableArray array];
        _hotRecommendList = [NSMutableArray array];
        _searchResultList = [NSMutableArray array];
        _hotRecommendPage = 1;
        _searchResultPage = 1;
    }
    return self;
}

- (instancetype)init {
    return [self initWithKeyword:nil];
}

#pragma mark - 生命周期

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self setupUI];
    [self loadSearchHistory];
    [self loadHotDiscover];
    [self loadHotRecommend];
    
    // 如果有初始关键词，执行搜索
    if (self.currentKeyword && self.currentKeyword.length > 0) {
        self.searchTextField.text = self.currentKeyword;
        [self performSearch:self.currentKeyword];
    }
}

#pragma mark - UI设置

- (void)setupUI {
    // 搜索栏
    [self setupSearchBar];
    
    // 搜索历史
    [self setupSearchHistory];
    
    // 热门推荐（热搜榜）
    [self setupHotDiscover];
    
    // 热门推荐列表
    [self setupHotRecommend];
    
    // 搜索结果
    [self setupSearchResult];
    
    // 初始状态：显示热门推荐，隐藏搜索结果
    self.hotRecommendContainer.hidden = NO;
    self.searchResultContainer.hidden = YES;
}

- (void)setupSearchBar {
    self.searchBarContainer = [[UIView alloc] init];
    self.searchBarContainer.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.searchBarContainer];
    
    // 返回按钮
    self.backButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.backButton setImage:[UIImage systemImageNamed:@"chevron.left"] forState:UIControlStateNormal];
    self.backButton.tintColor = [UIColor blackColor];
    [self.backButton addTarget:self action:@selector(handleBack) forControlEvents:UIControlEventTouchUpInside];
    [self.searchBarContainer addSubview:self.backButton];
    
    // 搜索输入框
    self.searchTextField = [[UITextField alloc] init];
    self.searchTextField.placeholder = @"搜索短剧";
    self.searchTextField.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
    self.searchTextField.layer.cornerRadius = 20;
    self.searchTextField.leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 12, 0)];
    self.searchTextField.leftViewMode = UITextFieldViewModeAlways;
    self.searchTextField.returnKeyType = UIReturnKeySearch;
    self.searchTextField.delegate = self;
    [self.searchTextField addTarget:self action:@selector(textFieldDidChange) forControlEvents:UIControlEventEditingChanged];
    [self.searchBarContainer addSubview:self.searchTextField];
    
    // 搜索按钮
    self.searchButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.searchButton setTitle:@"搜索" forState:UIControlStateNormal];
    [self.searchButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    self.searchButton.backgroundColor = [UIColor systemBlueColor];
    self.searchButton.layer.cornerRadius = 20;
    [self.searchButton addTarget:self action:@selector(handleSearch) forControlEvents:UIControlEventTouchUpInside];
    [self.searchBarContainer addSubview:self.searchButton];
    
    // 约束
    self.searchBarContainer.translatesAutoresizingMaskIntoConstraints = NO;
    self.backButton.translatesAutoresizingMaskIntoConstraints = NO;
    self.searchTextField.translatesAutoresizingMaskIntoConstraints = NO;
    self.searchButton.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.searchBarContainer.topAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.topAnchor],
        [self.searchBarContainer.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.searchBarContainer.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.searchBarContainer.heightAnchor constraintEqualToConstant:60],
        
        [self.backButton.leadingAnchor constraintEqualToAnchor:self.searchBarContainer.leadingAnchor constant:12],
        [self.backButton.centerYAnchor constraintEqualToAnchor:self.searchBarContainer.centerYAnchor],
        [self.backButton.widthAnchor constraintEqualToConstant:40],
        [self.backButton.heightAnchor constraintEqualToConstant:40],
        
        [self.searchTextField.leadingAnchor constraintEqualToAnchor:self.backButton.trailingAnchor constant:8],
        [self.searchTextField.centerYAnchor constraintEqualToAnchor:self.searchBarContainer.centerYAnchor],
        [self.searchTextField.heightAnchor constraintEqualToConstant:40],
        
        [self.searchButton.leadingAnchor constraintEqualToAnchor:self.searchTextField.trailingAnchor constant:8],
        [self.searchButton.trailingAnchor constraintEqualToAnchor:self.searchBarContainer.trailingAnchor constant:-12],
        [self.searchButton.centerYAnchor constraintEqualToAnchor:self.searchBarContainer.centerYAnchor],
        [self.searchButton.widthAnchor constraintEqualToConstant:60],
        [self.searchButton.heightAnchor constraintEqualToConstant:40]
    ]];
}

- (void)setupSearchHistory {
    self.searchHistoryContainer = [[UIView alloc] init];
    self.searchHistoryContainer.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.searchHistoryContainer];
    
    // 标题
    self.historyTitleLabel = [[UILabel alloc] init];
    self.historyTitleLabel.text = @"搜索历史";
    self.historyTitleLabel.font = [UIFont boldSystemFontOfSize:16];
    [self.searchHistoryContainer addSubview:self.historyTitleLabel];
    
    // 清除按钮
    self.clearHistoryButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.clearHistoryButton setImage:[UIImage systemImageNamed:@"trash"] forState:UIControlStateNormal];
    self.clearHistoryButton.tintColor = [UIColor grayColor];
    [self.clearHistoryButton addTarget:self action:@selector(handleClearHistory) forControlEvents:UIControlEventTouchUpInside];
    [self.searchHistoryContainer addSubview:self.clearHistoryButton];
    
    // 历史标签容器
    self.historyTagsContainer = [[UIView alloc] init];
    [self.searchHistoryContainer addSubview:self.historyTagsContainer];
    
    // 约束
    self.searchHistoryContainer.translatesAutoresizingMaskIntoConstraints = NO;
    self.historyTitleLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.clearHistoryButton.translatesAutoresizingMaskIntoConstraints = NO;
    self.historyTagsContainer.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.searchHistoryContainer.topAnchor constraintEqualToAnchor:self.searchBarContainer.bottomAnchor constant:16],
        [self.searchHistoryContainer.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.searchHistoryContainer.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.searchHistoryContainer.heightAnchor constraintGreaterThanOrEqualToConstant:60],
        
        [self.historyTitleLabel.topAnchor constraintEqualToAnchor:self.searchHistoryContainer.topAnchor constant:12],
        [self.historyTitleLabel.leadingAnchor constraintEqualToAnchor:self.searchHistoryContainer.leadingAnchor constant:16],
        
        [self.clearHistoryButton.topAnchor constraintEqualToAnchor:self.searchHistoryContainer.topAnchor constant:12],
        [self.clearHistoryButton.trailingAnchor constraintEqualToAnchor:self.searchHistoryContainer.trailingAnchor constant:-16],
        [self.clearHistoryButton.widthAnchor constraintEqualToConstant:30],
        [self.clearHistoryButton.heightAnchor constraintEqualToConstant:30],
        
        [self.historyTagsContainer.topAnchor constraintEqualToAnchor:self.historyTitleLabel.bottomAnchor constant:12],
        [self.historyTagsContainer.leadingAnchor constraintEqualToAnchor:self.searchHistoryContainer.leadingAnchor constant:16],
        [self.historyTagsContainer.trailingAnchor constraintEqualToAnchor:self.searchHistoryContainer.trailingAnchor constant:-16],
        [self.historyTagsContainer.bottomAnchor constraintEqualToAnchor:self.searchHistoryContainer.bottomAnchor constant:-12]
    ]];
}

- (void)setupHotDiscover {
    self.hotDiscoverContainer = [[UIView alloc] init];
    self.hotDiscoverContainer.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.hotDiscoverContainer];
    
    // 标题
    self.hotDiscoverTitleLabel = [[UILabel alloc] init];
    self.hotDiscoverTitleLabel.text = @"热门搜索";
    self.hotDiscoverTitleLabel.font = [UIFont boldSystemFontOfSize:16];
    [self.hotDiscoverContainer addSubview:self.hotDiscoverTitleLabel];
    
    // 热搜列表容器
    self.hotDiscoverListContainer = [[UIView alloc] init];
    [self.hotDiscoverContainer addSubview:self.hotDiscoverListContainer];
    
    // 约束
    self.hotDiscoverContainer.translatesAutoresizingMaskIntoConstraints = NO;
    self.hotDiscoverTitleLabel.translatesAutoresizingMaskIntoConstraints = NO;
    self.hotDiscoverListContainer.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.hotDiscoverContainer.topAnchor constraintEqualToAnchor:self.searchHistoryContainer.bottomAnchor constant:16],
        [self.hotDiscoverContainer.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.hotDiscoverContainer.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.hotDiscoverContainer.heightAnchor constraintGreaterThanOrEqualToConstant:200],
        
        [self.hotDiscoverTitleLabel.topAnchor constraintEqualToAnchor:self.hotDiscoverContainer.topAnchor constant:12],
        [self.hotDiscoverTitleLabel.leadingAnchor constraintEqualToAnchor:self.hotDiscoverContainer.leadingAnchor constant:16],
        
        [self.hotDiscoverListContainer.topAnchor constraintEqualToAnchor:self.hotDiscoverTitleLabel.bottomAnchor constant:12],
        [self.hotDiscoverListContainer.leadingAnchor constraintEqualToAnchor:self.hotDiscoverContainer.leadingAnchor constant:16],
        [self.hotDiscoverListContainer.trailingAnchor constraintEqualToAnchor:self.hotDiscoverContainer.trailingAnchor constant:-16],
        [self.hotDiscoverListContainer.bottomAnchor constraintEqualToAnchor:self.hotDiscoverContainer.bottomAnchor constant:-12]
    ]];
}

- (void)setupHotRecommend {
    self.hotRecommendContainer = [[UIView alloc] init];
    self.hotRecommendContainer.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.hotRecommendContainer];
    
    self.hotRecommendTableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
    self.hotRecommendTableView.delegate = self;
    self.hotRecommendTableView.dataSource = self;
    self.hotRecommendTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    [self.hotRecommendTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:kHotRecommendCellIdentifier];
    [self.hotRecommendContainer addSubview:self.hotRecommendTableView];
    
    // 约束
    self.hotRecommendContainer.translatesAutoresizingMaskIntoConstraints = NO;
    self.hotRecommendTableView.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.hotRecommendContainer.topAnchor constraintEqualToAnchor:self.hotDiscoverContainer.bottomAnchor constant:16],
        [self.hotRecommendContainer.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.hotRecommendContainer.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.hotRecommendContainer.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor],
        
        [self.hotRecommendTableView.topAnchor constraintEqualToAnchor:self.hotRecommendContainer.topAnchor],
        [self.hotRecommendTableView.leadingAnchor constraintEqualToAnchor:self.hotRecommendContainer.leadingAnchor],
        [self.hotRecommendTableView.trailingAnchor constraintEqualToAnchor:self.hotRecommendContainer.trailingAnchor],
        [self.hotRecommendTableView.bottomAnchor constraintEqualToAnchor:self.hotRecommendContainer.bottomAnchor]
    ]];
}

- (void)setupSearchResult {
    self.searchResultContainer = [[UIView alloc] init];
    self.searchResultContainer.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.searchResultContainer];
    
    self.searchResultTableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
    self.searchResultTableView.delegate = self;
    self.searchResultTableView.dataSource = self;
    self.searchResultTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    [self.searchResultTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:kSearchResultCellIdentifier];
    [self.searchResultContainer addSubview:self.searchResultTableView];
    
    // 空视图
    self.emptyView = [[UIView alloc] init];
    self.emptyView.hidden = YES;
    [self.searchResultContainer addSubview:self.emptyView];
    
    UILabel *emptyLabel = [[UILabel alloc] init];
    emptyLabel.text = @"搜索结果为空\n换一个搜索词试试吧~";
    emptyLabel.textColor = [UIColor grayColor];
    emptyLabel.font = [UIFont systemFontOfSize:14];
    emptyLabel.textAlignment = NSTextAlignmentCenter;
    emptyLabel.numberOfLines = 0;
    [self.emptyView addSubview:emptyLabel];
    
    // 约束
    self.searchResultContainer.translatesAutoresizingMaskIntoConstraints = NO;
    self.searchResultTableView.translatesAutoresizingMaskIntoConstraints = NO;
    self.emptyView.translatesAutoresizingMaskIntoConstraints = NO;
    emptyLabel.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.searchResultContainer.topAnchor constraintEqualToAnchor:self.searchBarContainer.bottomAnchor],
        [self.searchResultContainer.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.searchResultContainer.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.searchResultContainer.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor],
        
        [self.searchResultTableView.topAnchor constraintEqualToAnchor:self.searchResultContainer.topAnchor],
        [self.searchResultTableView.leadingAnchor constraintEqualToAnchor:self.searchResultContainer.leadingAnchor],
        [self.searchResultTableView.trailingAnchor constraintEqualToAnchor:self.searchResultContainer.trailingAnchor],
        [self.searchResultTableView.bottomAnchor constraintEqualToAnchor:self.searchResultContainer.bottomAnchor],
        
        [self.emptyView.centerXAnchor constraintEqualToAnchor:self.searchResultContainer.centerXAnchor],
        [self.emptyView.centerYAnchor constraintEqualToAnchor:self.searchResultContainer.centerYAnchor],
        [self.emptyView.widthAnchor constraintEqualToConstant:200],
        [self.emptyView.heightAnchor constraintEqualToConstant:100],
        
        [emptyLabel.centerXAnchor constraintEqualToAnchor:self.emptyView.centerXAnchor],
        [emptyLabel.centerYAnchor constraintEqualToAnchor:self.emptyView.centerYAnchor]
    ]];
}

#pragma mark - 数据加载

- (void)loadSearchHistory {
    // TODO: 从本地存储加载搜索历史
    // 暂时使用示例数据
    self.searchHistory = [@[@"热门短剧", @"爱情", @"悬疑"] mutableCopy];
    [self updateSearchHistoryUI];
}

- (void)saveSearchHistory:(NSString *)keyword {
    if (!keyword || keyword.length == 0) {
        return;
    }
    
    // 移除重复项
    [self.searchHistory removeObject:keyword];
    
    // 插入到最前面
    [self.searchHistory insertObject:keyword atIndex:0];
    
    // 最多保存10条
    if (self.searchHistory.count > 10) {
        [self.searchHistory removeLastObject];
    }
    
    // TODO: 保存到本地存储
    [self updateSearchHistoryUI];
}

- (void)loadHotDiscover {
    // TODO: 调用API获取热搜榜
    // 暂时使用示例数据
    self.hotDiscover = @[@"霸道总裁爱上我", @"穿越时空", @"都市言情", @"甜宠", @"逆袭", @"复仇", @"重生", @"古装"];
    [self updateHotDiscoverUI];
}

- (void)loadHotRecommend {
    if (self.isLoadingHotRecommend) {
        return;
    }
    
    self.isLoadingHotRecommend = YES;
    
    [[JXAPIService sharedService] getDramaListWithCategoryId:nil
                                                        page:self.hotRecommendPage
                                                    pageSize:20
                                                     success:^(id response) {
        self.isLoadingHotRecommend = NO;
        
        NSDictionary *data = response[@"data"];
        NSArray *list = data[@"list"];
        
        NSMutableArray *models = [NSMutableArray array];
        for (NSDictionary *dict in list) {
            JXDrama *drama = [[JXDrama alloc] initWithDictionary:dict];
            [models addObject:drama];
        }
        
        [self.hotRecommendList addObjectsFromArray:models];
        [self.hotRecommendTableView reloadData];
        
    } failure:^(NSError *error) {
        self.isLoadingHotRecommend = NO;
        NSLog(@"[JXSearch] 加载热门推荐失败: %@", error.localizedDescription);
    }];
}

- (void)performSearch:(NSString *)keyword {
    if (!keyword || keyword.length == 0) {
        return;
    }
    
    self.isSearching = YES;
    self.currentKeyword = keyword;
    self.searchResultPage = 1;
    [self.searchResultList removeAllObjects];
    
    // 保存搜索历史
    [self saveSearchHistory:keyword];
    
    // 切换UI
    self.hotRecommendContainer.hidden = YES;
    self.searchResultContainer.hidden = NO;
    self.searchHistoryContainer.hidden = YES;
    self.hotDiscoverContainer.hidden = YES;
    
    // 执行搜索
    [self loadSearchResult];
}

- (void)loadSearchResult {
    if (self.isLoadingSearchResult) {
        return;
    }
    
    self.isLoadingSearchResult = YES;
    
    [[JXAPIService sharedService] searchDramasWithKeyword:self.currentKeyword
                                                      page:self.searchResultPage
                                                  pageSize:20
                                                   success:^(id response) {
        self.isLoadingSearchResult = NO;
        
        NSDictionary *data = response[@"data"];
        NSArray *list = data[@"list"];
        
        NSMutableArray *models = [NSMutableArray array];
        for (NSDictionary *dict in list) {
            JXDrama *drama = [[JXDrama alloc] initWithDictionary:dict];
            [models addObject:drama];
        }
        
        [self.searchResultList addObjectsFromArray:models];
        [self.searchResultTableView reloadData];
        
        // 显示/隐藏空视图
        self.emptyView.hidden = (self.searchResultList.count > 0);
        
    } failure:^(NSError *error) {
        self.isLoadingSearchResult = NO;
        NSLog(@"[JXSearch] 搜索失败: %@", error.localizedDescription);
    }];
}

#pragma mark - UI更新

- (void)updateSearchHistoryUI {
    // 清空现有视图
    for (UIView *subview in self.historyTagsContainer.subviews) {
        [subview removeFromSuperview];
    }
    
    if (self.searchHistory.count == 0) {
        self.searchHistoryContainer.hidden = YES;
        return;
    }
    
    self.searchHistoryContainer.hidden = NO;
    
    // 创建历史标签
    CGFloat xOffset = 0;
    CGFloat yOffset = 0;
    CGFloat maxWidth = self.view.bounds.size.width - 32;
    
    for (NSString *keyword in self.searchHistory) {
        UIButton *tagButton = [self createTagButton:keyword];
        CGSize size = [tagButton sizeThatFits:CGSizeMake(maxWidth, 36)];
        
        if (xOffset + size.width > maxWidth) {
            xOffset = 0;
            yOffset += 44;
        }
        
        tagButton.frame = CGRectMake(xOffset, yOffset, size.width, 36);
        [self.historyTagsContainer addSubview:tagButton];
        
        xOffset += size.width + 8;
    }
}

- (void)updateHotDiscoverUI {
    // 清空现有视图
    for (UIView *subview in self.hotDiscoverListContainer.subviews) {
        [subview removeFromSuperview];
    }
    
    if (!self.hotDiscover || self.hotDiscover.count == 0) {
        return;
    }
    
    // 创建热搜榜列表
    CGFloat yOffset = 0;
    for (NSInteger i = 0; i < self.hotDiscover.count; i++) {
        NSString *keyword = self.hotDiscover[i];
        UIView *itemView = [self createHotDiscoverItem:keyword index:i];
        itemView.frame = CGRectMake(0, yOffset, self.view.bounds.size.width - 32, 44);
        [self.hotDiscoverListContainer addSubview:itemView];
        yOffset += 44;
    }
}

- (UIButton *)createTagButton:(NSString *)title {
    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    [button setTitle:title forState:UIControlStateNormal];
    [button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
    button.titleLabel.font = [UIFont systemFontOfSize:14];
    button.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
    button.layer.cornerRadius = 18;
    button.contentEdgeInsets = UIEdgeInsetsMake(8, 16, 8, 16);
    [button addTarget:self action:@selector(handleHistoryTagTap:) forControlEvents:UIControlEventTouchUpInside];
    return button;
}

- (UIView *)createHotDiscoverItem:(NSString *)keyword index:(NSInteger)index {
    UIView *itemView = [[UIView alloc] init];
    itemView.userInteractionEnabled = YES;
    
    UILabel *indexLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 30, 44)];
    indexLabel.text = [NSString stringWithFormat:@"%ld", (long)(index + 1)];
    indexLabel.font = [UIFont boldSystemFontOfSize:16];
    indexLabel.textColor = (index < 3) ? [UIColor systemRedColor] : [UIColor grayColor];
    indexLabel.textAlignment = NSTextAlignmentCenter;
    [itemView addSubview:indexLabel];
    
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(40, 0, self.view.bounds.size.width - 72, 44)];
    titleLabel.text = keyword;
    titleLabel.font = [UIFont systemFontOfSize:15];
    titleLabel.textColor = [UIColor blackColor];
    [itemView addSubview:titleLabel];
    
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleHotDiscoverTap:)];
    [itemView addGestureRecognizer:tap];
    itemView.tag = index;
    
    return itemView;
}

#pragma mark - 事件处理

- (void)handleBack {
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)handleSearch {
    NSString *keyword = [self.searchTextField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    [self performSearch:keyword];
    [self.searchTextField resignFirstResponder];
}

- (void)handleClearHistory {
    [self.searchHistory removeAllObjects];
    [self updateSearchHistoryUI];
    // TODO: 清除本地存储
}

- (void)handleHistoryTagTap:(UIButton *)sender {
    NSString *keyword = sender.titleLabel.text;
    self.searchTextField.text = keyword;
    [self performSearch:keyword];
}

- (void)handleHotDiscoverTap:(UITapGestureRecognizer *)gesture {
    NSInteger index = gesture.view.tag;
    if (index < self.hotDiscover.count) {
        NSString *keyword = self.hotDiscover[index];
        self.searchTextField.text = keyword;
        [self performSearch:keyword];
    }
}

- (void)textFieldDidChange {
    NSString *text = self.searchTextField.text;
    if (text.length == 0 && self.isSearching) {
        // 清空搜索，返回热门推荐
        self.isSearching = NO;
        self.hotRecommendContainer.hidden = NO;
        self.searchResultContainer.hidden = YES;
        self.searchHistoryContainer.hidden = NO;
        self.hotDiscoverContainer.hidden = NO;
    }
}

#pragma mark - UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [self handleSearch];
    return YES;
}

#pragma mark - UITableViewDataSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (tableView == self.hotRecommendTableView) {
        return self.hotRecommendList.count;
    } else {
        return self.searchResultList.count;
    }
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    if (tableView == self.hotRecommendTableView) {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kHotRecommendCellIdentifier forIndexPath:indexPath];
        JXDrama *drama = self.hotRecommendList[indexPath.row];
        cell.textLabel.text = drama.title;
        return cell;
    } else {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kSearchResultCellIdentifier forIndexPath:indexPath];
        JXDrama *drama = self.searchResultList[indexPath.row];
        cell.textLabel.text = drama.title;
        return cell;
    }
}

#pragma mark - UITableViewDelegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    JXDrama *drama;
    if (tableView == self.hotRecommendTableView) {
        drama = self.hotRecommendList[indexPath.row];
    } else {
        drama = self.searchResultList[indexPath.row];
    }
    
    NSLog(@"[JXSearch] 点击短剧: %@", drama.title);
    // TODO: 跳转到详情页或播放页
}

@end