//
//  HomeViewController.m
//  HC
//
//  Created by huilinLi on 2025/11/18.
//
#import <UIKit/UIKit.h>
#import "HomeViewController.h"
#import "MyViewController.h"
#import "CommonTabBar.h"
#import "QuotationViewController.h"


@implementation HomeViewController

- (void)viewDidLoad {
    self.view.backgroundColor = [UIColor blackColor];
    
    [self setupData];
    [self setupSubviews];
    [self setupConstraints];
    
    [self selectButton:self.courseBtn];// 课程
}

-(void) setupSubviews{
    // 搜索框左边logo
    _logoImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"logo"]];
    _logoImage.contentMode = UIViewContentModeScaleAspectFit;// 保持比例
    _logoImage.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_logoImage];
    
    // 搜索框
    _searchField = [[UITextField alloc] init];
    _searchField.placeholder = @"股票名称/代码";
    NSAttributedString *placeholder = [[NSAttributedString alloc] initWithString:@"股票名称/代码" attributes:@{
            NSForegroundColorAttributeName: [UIColor whiteColor]
        }];
    _searchField.attributedPlaceholder = placeholder;
    _searchField.textColor = [UIColor whiteColor];
    _searchField.backgroundColor = [UIColor colorWithRed:0.2 green:0.2 blue:0.2 alpha:1];
    _searchField.layer.cornerRadius = 15;
    _searchField.leftView = [[UIImageView alloc] initWithImage:[UIImage systemImageNamed:@"magnifyingglass"]];
    _searchField.leftViewMode = UITextFieldViewModeAlways;
    _searchField.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_searchField];
    
    // 市场配置
    _flagIcon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"singapore_flag"]];
    _flagIcon.contentMode = UIViewContentModeScaleAspectFit;
    _flagIcon.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_flagIcon];
    
    // 消息
    _messageBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    UIButtonConfiguration *config = [UIButtonConfiguration plainButtonConfiguration];
    config.image = [UIImage systemImageNamed:@"message"];
    config.baseForegroundColor = [UIColor whiteColor];
    // 富文本
    NSAttributedString *attributedTitle = [[NSAttributedString alloc] initWithString:@"15" attributes:@{
        NSFontAttributeName: [UIFont systemFontOfSize:10],
        NSForegroundColorAttributeName: [UIColor whiteColor]
    }];
    config.attributedTitle = attributedTitle;
    config.imagePadding = -5;
    config.contentInsets = NSDirectionalEdgeInsetsMake(0, 0, 0, 0);// 内容边距
    [_messageBtn setConfiguration:config];
    _messageBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_messageBtn];
    
    // 功能按钮数组初始化
    _functionBtns = [NSMutableArray array];
    for (NSDictionary *dict in _functionIcons) {
        UIButtonConfiguration *config = [UIButtonConfiguration plainButtonConfiguration];
        
        UIImage *logoImage = [UIImage imageNamed:@"logo"];
        UIGraphicsBeginImageContextWithOptions(CGSizeMake(40, 40), NO, 0);// 开启图形上下文，（（尺寸，尺寸），是否不透明，缩放因子）
        [logoImage drawInRect:CGRectMake(0, 0, 40, 40)];// 调整，等比缩放
        UIImage *resizedLogo = UIGraphicsGetImageFromCurrentImageContext();// 获得调整后的
        UIGraphicsEndImageContext();// 关闭图形上下文
        
        config.image = resizedLogo;
        // 按钮文字，富文本
        NSAttributedString *titleAttr = [[NSAttributedString alloc] initWithString:dict[@"title"] attributes:@{
            NSFontAttributeName: [UIFont systemFontOfSize:13],
            NSForegroundColorAttributeName: [UIColor whiteColor]
        }];
        config.attributedTitle = titleAttr;
        config.imagePlacement = NSDirectionalRectEdgeTop;
        config.imagePadding = 5;
        config.baseForegroundColor = [UIColor whiteColor];
        
        UIButton *btn = [UIButton buttonWithConfiguration:config primaryAction:nil];
        btn.titleLabel.font = [UIFont systemFontOfSize:12];
        btn.translatesAutoresizingMaskIntoConstraints = NO;
        [self.view addSubview:btn];
        [_functionBtns addObject:btn];
    }
    
    // 轮播图视图
    _bannerScrollView = [[UIScrollView alloc] init];
    _bannerScrollView.showsHorizontalScrollIndicator = NO;// 隐藏水平滚动条
    _bannerScrollView.pagingEnabled = YES;// 分页
    _bannerScrollView.delegate = self;
    _bannerScrollView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_bannerScrollView];
    
    // 轮播图内容容器
    UIView *bannerContentView = [[UIView alloc] init];
    bannerContentView.translatesAutoresizingMaskIntoConstraints = NO;
    [_bannerScrollView addSubview:bannerContentView];

    // 轮播图片
    NSArray *bannerImageNames = @[@"banner2", @"banner1", @"banner2", @"banner1"];
    NSMutableArray *bannerImages = [NSMutableArray array];

    for (int i = 0; i < bannerImageNames.count; i++) {
        UIImageView *bannerImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:bannerImageNames[i]]];
        bannerImage.contentMode = UIViewContentModeScaleAspectFill;// 填充
        bannerImage.clipsToBounds = YES;// 裁剪超出的
        bannerImage.translatesAutoresizingMaskIntoConstraints = NO;
        [bannerContentView addSubview:bannerImage];
        [bannerImages addObject:bannerImage];
        
        [bannerImage.heightAnchor constraintEqualToAnchor:bannerContentView.heightAnchor].active = YES;
        [bannerImage.widthAnchor constraintEqualToAnchor:self.view.widthAnchor].active = YES;
        
        if (i == 0) {
            [bannerImage.leadingAnchor constraintEqualToAnchor:bannerContentView.leadingAnchor].active = YES;
        } else {
            UIImageView *prevImage = bannerImages[i-1];
            [bannerImage.leadingAnchor constraintEqualToAnchor:prevImage.trailingAnchor].active = YES;
        }
    }

    // 内容视图宽度（总图片数 * 屏幕宽度）
    [bannerContentView.widthAnchor constraintEqualToConstant:self.view.bounds.size.width * bannerImages.count].active = YES;

    [NSLayoutConstraint activateConstraints:@[
        [bannerContentView.leadingAnchor constraintEqualToAnchor:_bannerScrollView.leadingAnchor],
        [bannerContentView.trailingAnchor constraintEqualToAnchor:_bannerScrollView.trailingAnchor],
        [bannerContentView.topAnchor constraintEqualToAnchor:_bannerScrollView.topAnchor],
        [bannerContentView.bottomAnchor constraintEqualToAnchor:_bannerScrollView.bottomAnchor],
        [bannerContentView.heightAnchor constraintEqualToAnchor:_bannerScrollView.heightAnchor],
    ]];

    // 初始第一张
    [_bannerScrollView setContentOffset:CGPointMake(self.view.bounds.size.width, 0) animated:NO];

    // 页码
    _bannerPageControl = [[UIPageControl alloc] init];
    _bannerPageControl.currentPageIndicatorTintColor = [UIColor blueColor];
    _bannerPageControl.pageIndicatorTintColor = [UIColor lightGrayColor];// 其他页码
    _bannerPageControl.numberOfPages = 2;
    _bannerPageControl.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_bannerPageControl];
    
    // 初始化定时器（2秒一切）
    _bannerTimer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(autoScrollBanner) userInfo:nil repeats:YES];
    [[NSRunLoop mainRunLoop] addTimer:_bannerTimer forMode:NSRunLoopCommonModes];
    _currentBannerIndex = 0;
    
    // 课程咨询活动的容器
    self.tabContainer = [[UIView alloc] init];
    self.tabContainer.backgroundColor = [UIColor blackColor];
    self.tabContainer.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:self.tabContainer];
    
    // 课程
    _courseBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    [_courseBtn setTitle:@"课程" forState:UIControlStateNormal];
    _courseBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    [_courseBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
    [_courseBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
    _courseBtn.backgroundColor = [UIColor blackColor];
    //[_courseBtn setBackgroundColor:[UIColor blackColor]];
    [_courseBtn addTarget:self action:@selector(tabButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
    _courseBtn.tag = 100;
    _courseBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_courseBtn];
    
    // 资讯
    _infoBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    [_infoBtn setTitle:@"资讯" forState:UIControlStateNormal];
    _infoBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    //_infoBtn.backgroundColor = [UIColor blackColor];
    [_infoBtn setBackgroundColor:[UIColor blackColor]];
    [_infoBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
    [_infoBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
    [_infoBtn addTarget:self action:@selector(tabButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
    _infoBtn.tag = 101;
    _infoBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_infoBtn];
    
    // 活动
    _activityBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    [_activityBtn setTitle:@"活动" forState:UIControlStateNormal];
    _activityBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    //_activityBtn.backgroundColor = [UIColor blackColor];
    [_activityBtn setBackgroundColor:[UIColor blackColor]];
    [_activityBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
    [_activityBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
    [_activityBtn addTarget:self action:@selector(tabButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
    _activityBtn.tag = 102;
    _activityBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_activityBtn];
    
    // 课程下划线
    _courseUnderline = [[UIView alloc] init];
    _courseUnderline.backgroundColor = [UIColor blueColor];
    _courseUnderline.hidden = YES;
    _courseUnderline.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_courseUnderline];
    
    // 资讯下划线
    _infoUnderline = [[UIView alloc] init];
    _infoUnderline.backgroundColor = [UIColor blueColor];
    _infoUnderline.hidden = YES;
    _infoUnderline.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_infoUnderline];
    
    // 活动下划线
    _activityUnderline = [[UIView alloc] init];
    _activityUnderline.backgroundColor = [UIColor blueColor];
    _activityUnderline.hidden = YES;
    _activityUnderline.translatesAutoresizingMaskIntoConstraints = NO;
    [self.tabContainer addSubview:_activityUnderline];
    
    // 课程列表TableView
    _courseTableView = [[UITableView alloc] init];
    _courseTableView.backgroundColor = [UIColor blackColor];
    _courseTableView.separatorStyle = UITableViewCellSeparatorStyleNone;// 隐藏分割线
    [_courseTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"CourseCell"];
    _courseTableView.delegate = self;
    _courseTableView.dataSource = self;// 数据源
    _courseTableView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_courseTableView];
    
    // 红包
    _redPacketIcon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"logo"]];
    _redPacketIcon.contentMode = UIViewContentModeScaleAspectFit;
    _redPacketIcon.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_redPacketIcon];

    NSArray *tabItems = @[
        @{@"title":@"首页", @"icon":@"house.fill", @"selected":@YES},
        @{@"title":@"行情", @"icon":@"chart.line.uptrend.xyaxis", @"selected":@NO},
        @{@"title":@"自选", @"icon":@"plus", @"selected":@NO},
        @{@"title":@"我的", @"icon":@"person", @"selected":@NO}
    ];
    self.commonTabBar = [[CommonTabBar alloc] initWithTabItems:tabItems];
    self.commonTabBar.delegate = self;
    [self.view addSubview:self.commonTabBar];
    
    // 登录提示
    _successLabel = [[UILabel alloc] init];
    _successLabel.text = @"登录成功";
    _successLabel.font = [UIFont systemFontOfSize:20];
    _successLabel.textColor = [UIColor whiteColor];
    _successLabel.numberOfLines = 0;
    _successLabel.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:_successLabel];

    
    // 标签容器和按钮约束
    [NSLayoutConstraint activateConstraints:@[
        // 标签容器，轮播图下15，左15，右15，高30
        [self.tabContainer.topAnchor constraintEqualToAnchor: _bannerScrollView.bottomAnchor constant:15],
        [self.tabContainer.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor constant:15],
        [self.tabContainer.trailingAnchor constraintEqualToAnchor: self.view.trailingAnchor constant:-15],
        [self.tabContainer.heightAnchor constraintEqualToConstant:30],
        
        // 按钮均分宽度
        // 课程左齐容器，垂直居中，宽度1/3
        [_courseBtn.leadingAnchor constraintEqualToAnchor: self.tabContainer.leadingAnchor],
        [_courseBtn.centerYAnchor constraintEqualToAnchor: self.tabContainer.centerYAnchor],
        [_courseBtn.widthAnchor constraintEqualToAnchor: self.tabContainer.widthAnchor multiplier:1.0/3.0],
        
        // 咨询左对齐课程右侧
        [_infoBtn.leadingAnchor constraintEqualToAnchor: _courseBtn.trailingAnchor],
        [_infoBtn.centerYAnchor constraintEqualToAnchor: self.tabContainer.centerYAnchor],
        [_infoBtn.widthAnchor constraintEqualToAnchor: self.tabContainer.widthAnchor multiplier:1.0/3.0],
        
        // 活动左对齐咨询右侧
        [_activityBtn.leadingAnchor constraintEqualToAnchor: _infoBtn.trailingAnchor],
        [_activityBtn.trailingAnchor constraintEqualToAnchor: self.tabContainer.trailingAnchor],
        [_activityBtn.centerYAnchor constraintEqualToAnchor: self.tabContainer.centerYAnchor],
        
        // 下划线约束
        // 底部对齐容器，在button下方正中，宽30高2
        [_courseUnderline.bottomAnchor constraintEqualToAnchor: self.tabContainer.bottomAnchor],
        [_courseUnderline.centerXAnchor constraintEqualToAnchor: _courseBtn.centerXAnchor],
        [_courseUnderline.widthAnchor constraintEqualToConstant:30],
        [_courseUnderline.heightAnchor constraintEqualToConstant:2],
        
        [_infoUnderline.bottomAnchor constraintEqualToAnchor: self.tabContainer.bottomAnchor],
        [_infoUnderline.centerXAnchor constraintEqualToAnchor: _infoBtn.centerXAnchor],
        [_infoUnderline.widthAnchor constraintEqualToConstant:30],
        [_infoUnderline.heightAnchor constraintEqualToConstant:2],
        
        [_activityUnderline.bottomAnchor constraintEqualToAnchor: self.tabContainer.bottomAnchor],
        [_activityUnderline.centerXAnchor constraintEqualToAnchor: _activityBtn.centerXAnchor],
        [_activityUnderline.widthAnchor constraintEqualToConstant:30],
        [_activityUnderline.heightAnchor constraintEqualToConstant:2],
    ]];
}

-(void) setupConstraints{
    // 登录成功提示
    [NSLayoutConstraint activateConstraints:@[
        [_successLabel.centerXAnchor constraintEqualToAnchor:self.view.centerXAnchor],// 水平居中
        [_successLabel.centerYAnchor constraintEqualToAnchor:self.view.centerYAnchor],// 垂直居中
        [_successLabel.widthAnchor constraintEqualToConstant:80],
        [_successLabel.heightAnchor constraintEqualToConstant:30],
    ]];
    
    // Logo图标 搜索框高度下垂直居中，左边距15，宽40高40
    [NSLayoutConstraint activateConstraints:@[
        [_logoImage.centerYAnchor constraintEqualToAnchor: _searchField.centerYAnchor],
        [_logoImage.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor constant:15],
        [_logoImage.widthAnchor constraintEqualToConstant:40],
        [_logoImage.heightAnchor constraintEqualToConstant:40],
    ]];
    
    // 搜索栏 父视图下50，logo左10，国旗左10，高30
    [NSLayoutConstraint activateConstraints:@[
        [_searchField.topAnchor constraintEqualToAnchor: self.view.topAnchor constant:50],
        [_searchField.leadingAnchor constraintEqualToAnchor: _logoImage.trailingAnchor constant:10],
        [_searchField.trailingAnchor constraintEqualToAnchor: _flagIcon.leadingAnchor constant:-10],
        [_searchField.heightAnchor constraintEqualToConstant:30],
    ]];
    
    // 国旗图标
    [NSLayoutConstraint activateConstraints:@[
        [_flagIcon.centerYAnchor constraintEqualToAnchor: _searchField.centerYAnchor],
        [_flagIcon.trailingAnchor constraintEqualToAnchor: _messageBtn.leadingAnchor constant:-10],
        [_flagIcon.widthAnchor constraintEqualToConstant:40],
        [_flagIcon.heightAnchor constraintEqualToConstant:40],
    ]];
    
    // 消息按钮
    [NSLayoutConstraint activateConstraints:@[
        [_messageBtn.centerYAnchor constraintEqualToAnchor: _searchField.centerYAnchor],
        [_messageBtn.trailingAnchor constraintEqualToAnchor: self.view.trailingAnchor constant:-15],
        [_messageBtn.widthAnchor constraintEqualToConstant:40],
        [_messageBtn.heightAnchor constraintEqualToConstant:40],
    ]];
    
    // 功能按钮（两行四列，均匀占满整行）
    for (int i = 0; i < _functionBtns.count; i++) {
        UIButton *btn = _functionBtns[i];
        NSLayoutConstraint *topConstraint;
        NSLayoutConstraint *widthConstraint = [btn.widthAnchor constraintEqualToAnchor: self.view.widthAnchor multiplier:0.25 constant:-15];
        NSLayoutConstraint *heightConstraint = [btn.heightAnchor constraintEqualToConstant:70];
        
        if (i < 4) {
            topConstraint = [btn.topAnchor constraintEqualToAnchor: _searchField.bottomAnchor constant:20];
            NSLayoutConstraint *leadingConstraint;
            if (i == 0) {
                leadingConstraint = [btn.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor constant:15];
            } else {
                leadingConstraint = [btn.leadingAnchor constraintEqualToAnchor: _functionBtns[i-1].trailingAnchor constant:0];
            }
            [NSLayoutConstraint activateConstraints:@[topConstraint, leadingConstraint, widthConstraint, heightConstraint]];
        } else {
            topConstraint = [btn.topAnchor constraintEqualToAnchor: _functionBtns[i-4].bottomAnchor constant:10];
            NSLayoutConstraint *leadingConstraint;
            if (i == 4) {
                leadingConstraint = [btn.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor constant:15];
            } else {
                leadingConstraint = [btn.leadingAnchor constraintEqualToAnchor: _functionBtns[i-1].trailingAnchor constant:0];
            }
            [NSLayoutConstraint activateConstraints:@[topConstraint, leadingConstraint, widthConstraint, heightConstraint]];
        }
    }
    
    // 轮播图ScrollView 顶部距离最后一个功能按钮20，左右对齐父视图，高150
    [NSLayoutConstraint activateConstraints:@[
        [_bannerScrollView.topAnchor constraintEqualToAnchor: _functionBtns.lastObject.bottomAnchor constant:20],
        [_bannerScrollView.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor],
        [_bannerScrollView.trailingAnchor constraintEqualToAnchor: self.view.trailingAnchor],
        [_bannerScrollView.heightAnchor constraintEqualToConstant:150],
    ]];
    
    // 轮播图PageControl，底部距离轮播图5
    [NSLayoutConstraint activateConstraints:@[
        [_bannerPageControl.bottomAnchor constraintEqualToAnchor: _bannerScrollView.bottomAnchor constant:-5],
        [_bannerPageControl.centerXAnchor constraintEqualToAnchor: self.view.centerXAnchor],
    ]];
    
    // 课程列表 顶部距离标签容器20，左右对齐父视图，底部tabBar
    [NSLayoutConstraint activateConstraints:@[
        [_courseTableView.topAnchor constraintEqualToAnchor: self.tabContainer.bottomAnchor constant:20],
        [_courseTableView.leadingAnchor constraintEqualToAnchor: self.view.leadingAnchor],
        [_courseTableView.trailingAnchor constraintEqualToAnchor: self.view.trailingAnchor],
        [_courseTableView.bottomAnchor constraintEqualToAnchor: _commonTabBar.topAnchor]
    ]];
    
    // 红包图标
    [NSLayoutConstraint activateConstraints:@[
        [_redPacketIcon.bottomAnchor constraintEqualToAnchor: _courseTableView.bottomAnchor constant:-200],
        [_redPacketIcon.trailingAnchor constraintEqualToAnchor: self.view.trailingAnchor constant:-20],
        [_redPacketIcon.widthAnchor constraintEqualToConstant:60],
        [_redPacketIcon.heightAnchor constraintEqualToConstant:60],
    ]];
    
    // 底部页面按钮 底部对齐安全区域，左右对齐父视图
    [_commonTabBar.bottomAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.bottomAnchor].active = YES;
    [_commonTabBar.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor].active = YES;
    [_commonTabBar.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor].active = YES;
}

- (void)setupData {
    _functionIcons = @[// 先都用logo
        @{@"title":@"全球指数"},
        @{@"title":@"浏览历史"},
        @{@"title":@"机构"},
        @{@"title":@"弘历学堂"},
        @{@"title":@"自选"},
        @{@"title":@"商店"},
        @{@"title":@"猎庄选股"},
        @{@"title":@"智能机器人"}
    ];
    
    _courseData = @[
        @{@"cover":@"course1", @"title":@"John Lu & Robert Xu “发财线”课程回顾！", @"lecturer":@"Homily Lecturer"},
        @{@"cover":@"event2", @"title":@"孩子炒股老亏钱，多半是废了", @"lecturer":@"kaslana"},
        @{@"cover":@"course3", @"title":@"论持久战", @"lecturer":@"教员先生"}
    ];
}

#pragma mark - 标签方法
- (void)tabButtonTapped:(UIButton *)sender {
    [self selectButton:sender];
    
    // 根据标签切换
    switch (sender.tag) {
        case 100:
            _courseData = @[
                @{@"cover":@"course1", @"title":@"John Lu & Robert Xu “发财线”课程回顾！", @"lecturer":@"Homily Lecturer"},
                @{@"cover":@"event2", @"title":@"孩子炒股老亏钱，多半是废了", @"lecturer":@"kaslana"},
                @{@"cover":@"course3", @"title":@"论持久战", @"lecturer":@"教员先生"}
            ];
            break;
            
        case 101:
            _courseData = @[
                @{@"cover":@"news1", @"title":@"objective-c从入门到入土", @"lecturer":@"财经资讯"},
                @{@"cover":@"news2", @"title":@"线程池核心参数详解", @"lecturer":@"财经资讯"},
                @{@"cover":@"news3", @"title":@"redis集群-主从、哨兵、分片", @"lecturer":@"财经资讯"}
            ];
            break;
            
        case 102:
            _courseData = @[
                @{@"cover":@"event1", @"title":@"SpringCloud入门到放弃", @"lecturer":@"活动预告"},
                @{@"cover":@"event2", @"title":@"孩子炒股老亏钱，多半是废了", @"lecturer":@"活动预告"},
                @{@"cover":@"event3", @"title":@"mySQL：从删库到跑路", @"lecturer":@"活动预告"}
            ];
            break;
    }
    
    [_courseTableView reloadData];
}

- (void) pushMine {
    MyViewController *myViewController = [[MyViewController alloc] init];
    [self.navigationController pushViewController:myViewController animated:YES];
}

- (void)selectButton:(UIButton *)selectedButton {
    _courseBtn.selected = NO;
    _infoBtn.selected = NO;
    _activityBtn.selected = NO;
    
    _courseBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    _infoBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    _activityBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    
    _courseUnderline.hidden = YES;
    _infoUnderline.hidden = YES;
    _activityUnderline.hidden = YES;
    
    // 设置选中按钮状态
    selectedButton.selected = YES;
    selectedButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
    
    // 显示对应下划线
    if (selectedButton == _courseBtn) {
        _courseUnderline.hidden = NO;
    } else if (selectedButton == _infoBtn) {
        _infoUnderline.hidden = NO;
    } else if (selectedButton == _activityBtn) {
        _activityUnderline.hidden = NO;
    }
}

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    if (scrollView == _bannerScrollView) {
        CGFloat screenWidth = self.view.bounds.size.width;
        NSInteger currentOffsetX = scrollView.contentOffset.x;
        NSInteger page = currentOffsetX / screenWidth;
        
        // 首尾拼接图无缝跳转
        if (page == 0) {
            page = 2;
            [scrollView setContentOffset:CGPointMake(screenWidth * page, 0) animated:NO];
        } else if (page == 3) {
            page = 1;
            [scrollView setContentOffset:CGPointMake(screenWidth * page, 0) animated:NO];
        }
        
        _currentBannerIndex = (page - 1) % 2;
        _bannerPageControl.currentPage = _currentBannerIndex;
        
        // 重启定时器
        [_bannerTimer invalidate];
        _bannerTimer = [NSTimer scheduledTimerWithTimeInterval:3.0
                                                       target:self
                                                     selector:@selector(autoScrollBanner)
                                                     userInfo:nil
                                                      repeats:YES];
    }
}

- (void)autoScrollBanner {
    CGFloat screenWidth = self.view.bounds.size.width;
    
    // 直接基于真实索引计算下一页，避免contentOffset的延迟问题
    _currentBannerIndex = (_currentBannerIndex + 1) % 2; // 0→1→0循环
    NSInteger targetPage = _currentBannerIndex + 1; // 对应拼接后的页面（1/2）
    
    // 处理尾部拼接图的无缝跳转
    if (targetPage > 2) {
        targetPage = 1;
        [_bannerScrollView setContentOffset:CGPointMake(screenWidth * targetPage, 0) animated:NO];
    }
    
    [_bannerScrollView setContentOffset:CGPointMake(screenWidth * targetPage, 0) animated:YES];
    _bannerPageControl.currentPage = _currentBannerIndex;
}

- (void) pushQuotation {
    QuotationViewController *quotationViewController = [[QuotationViewController alloc] init];
    [self.navigationController pushViewController:quotationViewController animated:YES];
}

- (void)tabBarDidSelectIndex:(NSInteger)index {
    if (index == 3) {
        [self pushMine];
    }
    else if (index == 0) {
        
    }
    else if (index == 1) {
        [self pushQuotation];
    }
    else if (index == 2) {
        // 自选
    }
}

#pragma mark - 视图即将消失
- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [_bannerTimer invalidate];// 销毁定时器
    _bannerTimer = nil;
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [UIView animateWithDuration:0.3 animations:^{
            self->_successLabel.alpha = 0;
        } completion:^(BOOL finished) {
            [self->_successLabel removeFromSuperview];
        }];
    });
}

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

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"CourseCell" forIndexPath:indexPath];
    cell.backgroundColor = [UIColor blackColor];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    
    for (UIView *subview in cell.contentView.subviews) {
        [subview removeFromSuperview];
    }
    
    NSDictionary *course = _courseData[indexPath.row];
    UIImageView *coverView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:course[@"cover"]]];
    coverView.contentMode = UIViewContentModeScaleAspectFill;
    coverView.clipsToBounds = YES;
    coverView.frame = CGRectMake(15, 10, 140, 100);
    [cell.contentView addSubview:coverView];
    
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 10, 220, 60)];
    titleLabel.text = course[@"title"];
    titleLabel.textColor = [UIColor whiteColor];
    titleLabel.font = [UIFont systemFontOfSize:14];
    titleLabel.numberOfLines = 3;
    [cell.contentView addSubview:titleLabel];
    
    UILabel *lecturerLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 75, 120, 30)];
    lecturerLabel.text = course[@"lecturer"];
    lecturerLabel.textColor = [UIColor lightGrayColor];
    lecturerLabel.font = [UIFont systemFontOfSize:14];
    [cell.contentView addSubview:lecturerLabel];
    
    UIView *bottomLine = [[UIView alloc] init];
    bottomLine.backgroundColor = [UIColor lightGrayColor];
    bottomLine.translatesAutoresizingMaskIntoConstraints = NO;
    [cell.contentView addSubview:bottomLine];
    
    [NSLayoutConstraint activateConstraints:@[
        [bottomLine.leadingAnchor constraintEqualToAnchor:cell.contentView.leadingAnchor constant:20], // 左边距15
        [bottomLine.trailingAnchor constraintEqualToAnchor:cell.contentView.trailingAnchor constant:-20], // 右边距15
        [bottomLine.bottomAnchor constraintEqualToAnchor:cell.contentView.bottomAnchor],
        [bottomLine.heightAnchor constraintEqualToConstant:0.2]
    ]];
    
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 120;
}

@end