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

#import "JXHistoryViewController.h"
#import "JXAPIService.h"
#import "JXDrama.h"

// Cell复用标识符
static NSString * const kHistoryCellIdentifier = @"HistoryCell";

@interface JXHistoryViewController () <UITableViewDelegate, UITableViewDataSource>

#pragma mark - UI组件
@property (nonatomic, strong) UITableView *tableView;
@property (nonatomic, strong) UIRefreshControl *refreshControl;
@property (nonatomic, strong) UIView *emptyView;
@property (nonatomic, strong) UIBarButtonItem *clearAllButton;

#pragma mark - 数据
@property (nonatomic, strong) NSMutableArray<JXDrama *> *historyList;

#pragma mark - 状态
@property (nonatomic, assign) BOOL isLoading;

@end

@implementation JXHistoryViewController

#pragma mark - 生命周期

- (instancetype)init {
    self = [super init];
    if (self) {
        _historyList = [NSMutableArray array];
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    self.title = @"播放历史";
    
    [self setupUI];
    [self loadHistory];
}

#pragma mark - UI设置

- (void)setupUI {
    // 清空按钮
    self.clearAllButton = [[UIBarButtonItem alloc] initWithTitle:@"清空" 
                                                           style:UIBarButtonItemStylePlain 
                                                          target:self 
                                                          action:@selector(handleClearAll)];
    self.navigationItem.rightBarButtonItem = self.clearAllButton;
    
    // 列表
    self.tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
    self.tableView.delegate = self;
    self.tableView.dataSource = self;
    self.tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:kHistoryCellIdentifier];
    [self.view addSubview:self.tableView];
    
    // 下拉刷新
    self.refreshControl = [[UIRefreshControl alloc] init];
    [self.refreshControl addTarget:self action:@selector(handleRefresh) forControlEvents:UIControlEventValueChanged];
    [self.tableView addSubview:self.refreshControl];
    
    // 空状态
    [self setupEmptyView];
    
    // 约束
    self.tableView.translatesAutoresizingMaskIntoConstraints = NO;
    [NSLayoutConstraint activateConstraints:@[
        [self.tableView.topAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.topAnchor],
        [self.tableView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
        [self.tableView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
        [self.tableView.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor]
    ]];
}

- (void)setupEmptyView {
    self.emptyView = [[UIView alloc] init];
    self.emptyView.hidden = YES;
    [self.view addSubview:self.emptyView];
    
    UILabel *emptyLabel = [[UILabel alloc] init];
    emptyLabel.text = @"暂无播放历史\n快去看短剧吧~";
    emptyLabel.textColor = [UIColor grayColor];
    emptyLabel.font = [UIFont systemFontOfSize:14];
    emptyLabel.textAlignment = NSTextAlignmentCenter;
    emptyLabel.numberOfLines = 0;
    [self.emptyView addSubview:emptyLabel];
    
    self.emptyView.translatesAutoresizingMaskIntoConstraints = NO;
    emptyLabel.translatesAutoresizingMaskIntoConstraints = NO;
    
    [NSLayoutConstraint activateConstraints:@[
        [self.emptyView.centerXAnchor constraintEqualToAnchor:self.view.centerXAnchor],
        [self.emptyView.centerYAnchor constraintEqualToAnchor:self.view.centerYAnchor],
        
        [emptyLabel.centerXAnchor constraintEqualToAnchor:self.emptyView.centerXAnchor],
        [emptyLabel.centerYAnchor constraintEqualToAnchor:self.emptyView.centerYAnchor]
    ]];
}

#pragma mark - 数据加载

- (void)loadHistory {
    if (self.isLoading) {
        return;
    }
    
    self.isLoading = YES;
    
    // TODO: 调用API获取播放历史
    // 暂时使用示例数据
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        self.isLoading = NO;
        [self.refreshControl endRefreshing];
        
        // 示例数据
        self.historyList = [@[] mutableCopy];
        
        [self.tableView reloadData];
        self.emptyView.hidden = (self.historyList.count > 0);
        self.clearAllButton.enabled = (self.historyList.count > 0);
    });
}

- (void)handleRefresh {
    [self loadHistory];
}

- (void)handleClearAll {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"清空历史"
                                                                   message:@"确定要清空全部播放历史吗？"
                                                            preferredStyle:UIAlertControllerStyleAlert];
    
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [self clearAllHistory];
    }]];
    
    [self presentViewController:alert animated:YES completion:nil];
}

- (void)clearAllHistory {
    // TODO: 调用API清空历史
    [self.historyList removeAllObjects];
    [self.tableView reloadData];
    self.emptyView.hidden = NO;
    self.clearAllButton.enabled = NO;
}

- (void)deleteHistoryAtIndex:(NSInteger)index {
    if (index < 0 || index >= self.historyList.count) {
        return;
    }
    
    // TODO: 调用API删除单条历史
    [self.historyList removeObjectAtIndex:index];
    [self.tableView deleteRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:index inSection:0]] withRowAnimation:UITableViewRowAnimationFade];
    
    self.emptyView.hidden = (self.historyList.count > 0);
    self.clearAllButton.enabled = (self.historyList.count > 0);
}

#pragma mark - UITableViewDataSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.historyList.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kHistoryCellIdentifier forIndexPath:indexPath];
    
    JXDrama *drama = self.historyList[indexPath.row];
    
    cell.textLabel.text = drama.title;
    cell.detailTextLabel.text = @"观看至第X集";  // TODO: 显示播放进度
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    
    return cell;
}

#pragma mark - UITableViewDelegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    JXDrama *drama = self.historyList[indexPath.row];
    NSLog(@"[JXHistory] 继续播放: %@", drama.title);
    // TODO: 跳转到播放页，从上次播放位置继续
}

- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    UIContextualAction *deleteAction = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive
                                                                               title:@"删除"
                                                                             handler:^(UIContextualAction *action, UIView *sourceView, void (^completionHandler)(BOOL)) {
        [self deleteHistoryAtIndex:indexPath.row];
        completionHandler(YES);
    }];
    
    UISwipeActionsConfiguration *configuration = [UISwipeActionsConfiguration configurationWithActions:@[deleteAction]];
    return configuration;
}

@end