keyboard/keyBoard/Class/Base/VC/BaseTabBarController.m

//
//  BaseTabBarController.m
//  keyBoard
//
//  Created by Mac on 2025/10/29.
//

#import "BaseTabBarController.h"
#import "HomeMainVC.h"
#import "KBAiMainVC.h"
#import "KBShopVC.h"
#import "MyVC.h"

// #import "KBCommunityVC.h"

#import "BaseNavigationController.h"
#import "KBAuthManager.h"
@interface BaseTabBarController ()

/// 原始的 TabBar appearance（用于恢复）
@property(nonatomic, strong)
    UITabBarAppearance *originalAppearance API_AVAILABLE(ios(13.0));
@property(nonatomic, strong)
    UITabBarAppearance *transparentAppearance API_AVAILABLE(ios(13.0));

@end

@implementation BaseTabBarController

- (void)viewDidLoad {
  [super viewDidLoad];

  self.delegate = self;

  [self setupTabbarAppearance];

  // 组装 4 个 Tab：首页 / 商城 / 社区 / 我的
  // 图标位于 Assets.xcassets/Tabbar 下：tab_home/tab_home_selected 等

  // 首页
  HomeMainVC *home = [[HomeMainVC alloc] init];
  BaseNavigationController *navHome =
      [[BaseNavigationController alloc] initWithRootViewController:home];
  navHome.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Home")
                                        image:@"tab_home"
                                  selectedImg:@"tab_home_selected"];

  // 商城
  KBShopVC *shop = [[KBShopVC alloc] init];
  BaseNavigationController *navShop =
      [[BaseNavigationController alloc] initWithRootViewController:shop];
  navShop.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Shop")
                                        image:@"tab_shop"
                                  selectedImg:@"tab_shop_selected"];

  // AI
  KBAiMainVC *aiMainVC = [[KBAiMainVC alloc] init];
  //    community.title = KBLocalized(@"Circle");
  BaseNavigationController *navCommunity =
      [[BaseNavigationController alloc] initWithRootViewController:aiMainVC];
  navCommunity.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Circle")
                                             image:@"tab_shequ"
                                       selectedImg:@"tab_shequ_selected"];

  // 我的
  MyVC *my = [[MyVC alloc] init];
  BaseNavigationController *navMy =
      [[BaseNavigationController alloc] initWithRootViewController:my];
  navMy.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Mine")
                                      image:@"tab_my"
                                selectedImg:@"tab_my_selected"];

  self.viewControllers = @[ navHome, navShop, aiMainVC, navMy ];

  // 测试储存Token
  //    [[KBAuthManager shared] saveAccessToken:@"TEST" refreshToken:nil
  //    expiryDate:[NSDate dateWithTimeIntervalSinceNow:3600]
  //    userIdentifier:nil];
  //    [[KBAuthManager shared] signOut];
}

- (void)setupTabbarAppearance {
  // 让 TabBar 不透明，子控制器 view 不再延伸到 TabBar 下
  self.tabBar.translucent = NO;
  if (@available(iOS 15.0, *)) {
    UITabBarAppearance *a = [UITabBarAppearance new];
    [a configureWithOpaqueBackground];
    a.backgroundColor = [UIColor whiteColor];
    // 设置选中标题为黑色（iOS 15+ 需通过 appearance）
    NSDictionary *selAttr =
        @{NSForegroundColorAttributeName : [UIColor blackColor]};
    a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
    a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    self.tabBar.standardAppearance = a;
    self.tabBar.scrollEdgeAppearance = a;

    // 保存原始 appearance
    self.originalAppearance = a;

    // 创建透明 appearance
    UITabBarAppearance *transparentA = [UITabBarAppearance new];
    [transparentA configureWithTransparentBackground];
    transparentA.backgroundColor = [UIColor clearColor];
    transparentA.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
    transparentA.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    transparentA.compactInlineLayoutAppearance.selected.titleTextAttributes =
        selAttr;
    self.transparentAppearance = transparentA;
  } else if (@available(iOS 13.0, *)) {
    UITabBarAppearance *a = [UITabBarAppearance new];
    [a configureWithOpaqueBackground];
    a.backgroundColor = [UIColor whiteColor];
    NSDictionary *selAttr =
        @{NSForegroundColorAttributeName : [UIColor blackColor]};
    a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
    a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    self.tabBar.standardAppearance = a;
    self.tabBar.tintColor = [UIColor blackColor];

    // 保存原始 appearance
    self.originalAppearance = a;

    // 创建透明 appearance
    UITabBarAppearance *transparentA = [UITabBarAppearance new];
    [transparentA configureWithTransparentBackground];
    transparentA.backgroundColor = [UIColor clearColor];
    transparentA.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
    transparentA.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
    transparentA.compactInlineLayoutAppearance.selected.titleTextAttributes =
        selAttr;
    self.transparentAppearance = transparentA;
  } else {
    // 老系统用 tintColor/appearance 做回退
    self.tabBar.tintColor = [UIColor blackColor];
    [[UITabBarItem appearance] setTitleTextAttributes:@{
      NSForegroundColorAttributeName : [UIColor blackColor]
    }
                                             forState:UIControlStateSelected];
  }
}

// 统一构造 TabBarItem，原图渲染，避免被系统 Tint 着色
- (UITabBarItem *)tabItemWithTitle:(NSString *)title
                             image:(NSString *)imageName
                       selectedImg:(NSString *)selectedName {
  UIImage *img = [[UIImage imageNamed:imageName]
      imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
  UIImage *sel = [[UIImage imageNamed:selectedName]
      imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
  UITabBarItem *item = [[UITabBarItem alloc] initWithTitle:title
                                                     image:img
                                             selectedImage:sel];
  return item;
}

#pragma mark - UITabBarControllerDelegate

- (BOOL)tabBarController:(UITabBarController *)tabBarController
    shouldSelectViewController:(UIViewController *)viewController {
  // 已经是当前选中的 tab，直接允许（避免重复拦截）
  if (tabBarController.selectedViewController == viewController) {
    return YES;
  }

  NSUInteger index =
      [tabBarController.viewControllers indexOfObject:viewController];
  if (index == NSNotFound) {
    return YES;
  }

  // “我的” tab 默认为第 4 个（索引 3），未登录时先跳转登录页
  if ((index == 1 || index == 2) && ![KBUserSessionManager shared].isLoggedIn) {
    [[KBUserSessionManager shared] goLoginVC];
    return NO;
  }

  return YES;
}

- (void)tabBarController:(UITabBarController *)tabBarController
    didSelectViewController:(UIViewController *)viewController {
  NSUInteger index =
      [tabBarController.viewControllers indexOfObject:viewController];

  // 第三个 tab（索引2）是 KBAiMainVC，背景透明
  if (index == 2) {
    if (@available(iOS 13.0, *)) {
      self.tabBar.standardAppearance = self.transparentAppearance;
      if (@available(iOS 15.0, *)) {
        self.tabBar.scrollEdgeAppearance = self.transparentAppearance;
      }
    } else {
      // iOS 13 以下，直接设置背景色
      self.tabBar.barTintColor = [UIColor clearColor];
      self.tabBar.backgroundColor = [UIColor clearColor];
    }
  } else {
    // 其他 tab，恢复原始背景
    if (@available(iOS 13.0, *)) {
      self.tabBar.standardAppearance = self.originalAppearance;
      if (@available(iOS 15.0, *)) {
        self.tabBar.scrollEdgeAppearance = self.originalAppearance;
      }
    } else {
      // iOS 13 以下，恢复白色背景
      self.tabBar.barTintColor = [UIColor whiteColor];
      self.tabBar.backgroundColor = [UIColor whiteColor];
    }
  }
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little
preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end