//
//  KBEmailRegistVC.m
//  keyBoard
//
//  Created by Mac on 2025/12/3.
//

#import "KBEmailRegistVC.h"
#import "KBEmailLoginVC.h"
#import <AuthenticationServices/AuthenticationServices.h>
#import "KBLoginVM.h"
#import "AppDelegate.h"

@interface KBEmailRegistVC () <UITextViewDelegate, UITextFieldDelegate>

// 背景
@property (nonatomic, strong) UIImageView *bgImageView;          // 整体背景图：login_bg_icon
@property (nonatomic, strong) UIImageView *topRightImageView;    // 顶部右侧装饰图：login_jianp_icon
@property (nonatomic, strong) UIButton *backButton;              // 顶部左侧返回按钮

// 底部白色容器（仅上圆角 26）
@property (nonatomic, strong) UIView *contentContainerView;

// 可滚动区域（小屏设备内容较多时允许纵向滚动）
@property (nonatomic, strong) UIScrollView *scrollView;
@property (nonatomic, strong) UIView *scrollContentView;

// 标题
@property (nonatomic, strong) UILabel *titleLabel;

// 输入框
@property (nonatomic, strong) UIView *emailFieldContainer;
@property (nonatomic, strong) UITextField *emailTextField;

@property (nonatomic, strong) UIView *passwordFieldContainer;
@property (nonatomic, strong) UITextField *passwordTextField;
@property (nonatomic, strong) UIButton *passwordToggleButton;    // 显示/隐藏密码

@property (nonatomic, strong) UIView *repeatPasswordFieldContainer;
@property (nonatomic, strong) UITextField *repeatPasswordTextField;
@property (nonatomic, strong) UIButton *repeatPasswordToggleButton;

// 主要提交按钮
@property (nonatomic, strong) UIButton *submitButton;            // 绿色 Login 按钮

// 其他登录方式
@property (nonatomic, strong) UIControl *appleLoginButton;       // Continue Through Apple（ASAuthorizationAppleIDButton）
@property (nonatomic, strong) UIButton *emailLoginButton;        // Continue Via Email

// 协议 & 底部文案
@property (nonatomic, strong) UITextView *agreementTextView;     // 底部协议富文本
//@property (nonatomic, strong) UILabel *accountTipLabel;          // “Already Have An Account?”
//@property (nonatomic, strong) UIButton *switchAccountButton;     // “Sign In”

@end

@implementation KBEmailRegistVC

- (void)viewDidLoad {
    [super viewDidLoad];
    // 与 KBLoginVC 一致，使用自定义背景与返回按钮，不展示通用导航栏
    self.kb_enableCustomNavBar = NO;
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self setupUI];
}

- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    // 仅白色容器的左上、右上圆角为 26，跟 KBLoginVC 保持一致
    if (!CGRectIsEmpty(self.contentContainerView.bounds)) {
        UIRectCorner corners = UIRectCornerTopLeft | UIRectCornerTopRight;
        UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.contentContainerView.bounds
                                                   byRoundingCorners:corners
                                                         cornerRadii:CGSizeMake(26, 26)];
        CAShapeLayer *mask = [CAShapeLayer layer];
        mask.frame = self.contentContainerView.bounds;
        mask.path = path.CGPath;
        self.contentContainerView.layer.mask = mask;
    }
}

#pragma mark - UI

- (void)setupUI {
    // 背景图
    [self.view addSubview:self.bgImageView];
    [self.bgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.view);
    }];

    // 顶部左侧返回按钮
    [self.view addSubview:self.backButton];
    [self.backButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(16);
        make.top.equalTo(self.view).offset(KB_StatusBarHeight() + 8);
        make.width.height.mas_equalTo(32);
    }];
    
    // 顶部右侧装饰图
    [self.view addSubview:self.topRightImageView];
    [self.topRightImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view).offset(KB_StatusBarHeight() + KBFit(24));
        make.right.equalTo(self.view).offset(KBFit(10));
        make.width.mas_equalTo(KBFit(244));
        make.height.mas_equalTo(KBFit(224));
    }];
    
    // 底部白色容器
    [self.view addSubview:self.contentContainerView];
    [self.contentContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self.view);
        // 顶部位置与 KBLoginVC 大致保持一致
        make.top.equalTo(self.view).offset(KBFit(272));
    }];
    
    // 可滚动区域：保证小屏设备能完整展示所有控件
    [self.contentContainerView addSubview:self.scrollView];
    [self.scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.contentContainerView);
    }];
    
    [self.scrollView addSubview:self.scrollContentView];
    [self.scrollContentView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.scrollView);
        make.width.equalTo(self.scrollView); // 只允许纵向滚动
    }];
    
    // 标题（Sign Up）
    [self.scrollContentView addSubview:self.titleLabel];
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.scrollContentView).offset(27);
        make.centerX.equalTo(self.scrollContentView);
    }];
    
    // 邮箱输入
    [self.scrollContentView addSubview:self.emailFieldContainer];
    [self.emailFieldContainer mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.titleLabel.mas_bottom).offset(24);
        make.left.equalTo(self.scrollContentView).offset(30);
        make.right.equalTo(self.scrollContentView).offset(-30);
        make.height.mas_equalTo(52);
    }];
    
    [self.emailFieldContainer addSubview:self.emailTextField];
    [self.emailTextField mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.emailFieldContainer).insets(UIEdgeInsetsMake(0, 16, 0, 16));
    }];
    
    // 密码输入
    [self.scrollContentView addSubview:self.passwordFieldContainer];
    [self.passwordFieldContainer mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.emailFieldContainer.mas_bottom).offset(16);
        make.left.right.equalTo(self.emailFieldContainer);
        make.height.equalTo(self.emailFieldContainer);
    }];
    
    [self.passwordFieldContainer addSubview:self.passwordToggleButton];
    [self.passwordToggleButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.passwordFieldContainer);
        make.right.equalTo(self.passwordFieldContainer).offset(-16);
        make.width.height.mas_equalTo(24);
    }];
    
    [self.passwordFieldContainer addSubview:self.passwordTextField];
    [self.passwordTextField mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.bottom.equalTo(self.passwordFieldContainer);
        make.left.equalTo(self.passwordFieldContainer).offset(16);
        make.right.equalTo(self.passwordToggleButton.mas_left).offset(-8);
    }];
    
    // 重复密码输入
    [self.scrollContentView addSubview:self.repeatPasswordFieldContainer];
    [self.repeatPasswordFieldContainer mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.passwordFieldContainer.mas_bottom).offset(16);
        make.left.right.height.equalTo(self.emailFieldContainer);
    }];
    
    [self.repeatPasswordFieldContainer addSubview:self.repeatPasswordToggleButton];
    [self.repeatPasswordToggleButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.repeatPasswordFieldContainer);
        make.right.equalTo(self.repeatPasswordFieldContainer).offset(-16);
        make.width.height.mas_equalTo(24);
    }];
    
    [self.repeatPasswordFieldContainer addSubview:self.repeatPasswordTextField];
    [self.repeatPasswordTextField mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.bottom.equalTo(self.repeatPasswordFieldContainer);
        make.left.equalTo(self.repeatPasswordFieldContainer).offset(16);
        make.right.equalTo(self.repeatPasswordToggleButton.mas_left).offset(-8);
    }];
    
    // 提交按钮（绿色 Login）
    [self.scrollContentView addSubview:self.submitButton];
    [self.submitButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.repeatPasswordFieldContainer.mas_bottom).offset(24);
        make.left.right.equalTo(self.emailFieldContainer);
        make.height.mas_equalTo(56);
    }];
    
    // Apple 登录方式
    [self.scrollContentView addSubview:self.appleLoginButton];
    [self.appleLoginButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.submitButton.mas_bottom).offset(24);
        make.left.right.equalTo(self.emailFieldContainer);
        make.height.mas_equalTo(52);
    }];
    
    // 邮箱登录方式
    [self.scrollContentView addSubview:self.emailLoginButton];
    [self.emailLoginButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.appleLoginButton.mas_bottom).offset(12);
        make.left.right.height.equalTo(self.appleLoginButton);
    }];
    
    // 协议文案
    [self.scrollContentView addSubview:self.agreementTextView];
    [self.agreementTextView mas_makeConstraints:^(MASConstraintMaker *make) {
        // 顶部挂在邮箱登录按钮下方，底部挂到 scrollContentView，既保证布局又撑开滚动区域
        make.top.equalTo(self.emailLoginButton.mas_bottom).offset(16);
        make.bottom.equalTo(self.scrollContentView).offset(-KB_SAFE_BOTTOM - 16);
        make.left.equalTo(self.scrollContentView).offset(30);
        make.right.equalTo(self.scrollContentView).offset(-30);
    }];
    
    // 底部账号切换文案
//    UIView *accountLine = [UIView new];
//    [self.scrollContentView addSubview:accountLine];
//    [accountLine mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.top.equalTo(self.agreementTextView.mas_bottom).offset(16);
//        make.centerX.equalTo(self.scrollContentView);
//        make.bottom.equalTo(self.scrollContentView).offset(-KB_SAFE_BOTTOM - 16);
//    }];
    
//    [accountLine addSubview:self.accountTipLabel];
//    [accountLine addSubview:self.switchAccountButton];
//    
//    [self.accountTipLabel mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.top.left.bottom.equalTo(accountLine);
//    }];
//    
//    [self.switchAccountButton mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.left.equalTo(self.accountTipLabel.mas_right).offset(4);
//        make.right.equalTo(accountLine);
//        make.centerY.equalTo(self.accountTipLabel);
//    }];
}

#pragma mark - Actions

- (void)onTapBack {
    // 与 BaseViewController 的返回逻辑保持一致：优先 pop，其次 dismiss
    if (self.navigationController && self.navigationController.viewControllers.count > 1) {
        [self.navigationController popViewControllerAnimated:YES];
    } else if (self.presentingViewController) {
        [self dismissViewControllerAnimated:YES completion:nil];
    }
}

- (void)onTapSubmit {
    // 后续接入具体注册/登录逻辑
    KBLOG(@"onTapSubmit email=%@, password length=%zd",
          self.emailTextField.text,
          self.passwordTextField.text.length);
}

- (void)onTapForgotPassword {
    KBLOG(@"onTapForgotPassword in KBEmailRegistVC");
}

//- (void)onTapSwitchAccount {
//    // 注册页/登录页互跳逻辑后续接入
//    KBLOG(@"onTapSwitchAccount");
//
//}

- (void)onTapTogglePassword:(UIButton *)sender {
    sender.selected = !sender.selected;
    BOOL showPassword = sender.selected;
    
    if (sender == self.passwordToggleButton) {
        self.passwordTextField.secureTextEntry = !showPassword;
    } else if (sender == self.repeatPasswordToggleButton) {
        self.repeatPasswordTextField.secureTextEntry = !showPassword;
    }
}

- (void)onTapAppleLogin {
    // 先校验表单：邮箱、密码、重复密码均有值且两次密码一致
    NSString *email = [self.emailTextField.text ?: @"" stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    NSString *pwd = self.passwordTextField.text ?: @"";
    NSString *repeat = self.repeatPasswordTextField.text ?: @"";

    if (email.length == 0 || pwd.length == 0 || repeat.length == 0) {
        [KBHUD showInfo:KBLocalized(@"Please complete all fields")];
        return;
    }
    if (![pwd isEqualToString:repeat]) {
        [KBHUD showInfo:KBLocalized(@"The two passwords do not match")];
        return;
    }

    KBLOG(@"onTapAppleLogin in KBEmailRegistVC - form validated");

    // 复用登录页的 Apple 登录逻辑
    [[KBLoginVM shared] signInWithAppleFromViewController:KB_CURRENT_NAV completion:^(BOOL success, NSError * _Nullable error) {
        if (success) {
            [KBHUD showInfo:KBLocalized(@"Signed in successfully")];
            // 登录成功后切换到主 TabBar
            dispatch_async(dispatch_get_main_queue(), ^{
                id<UIApplicationDelegate> appDelegate = UIApplication.sharedApplication.delegate;
                if ([appDelegate respondsToSelector:@selector(setupRootVC)]) {
                    AppDelegate *delegate = (AppDelegate *)appDelegate;
                    [delegate toMainTabbarVC];
                }
            });
        } else {
            NSString *msg = error.localizedDescription ?: KBLocalized(@"Sign-in failed");
            [KBHUD showInfo:msg];
        }
    }];
}

- (void)onTapEmailLogin {
    KBLOG(@"onTapEmailLogin in KBEmailRegistVC");
    KBEmailLoginVC *vc = [[KBEmailLoginVC alloc] init];
    UINavigationController *nav = KB_CURRENT_NAV;
    if ([nav isKindOfClass:[BaseNavigationController class]]) {
        [(BaseNavigationController *)nav kb_pushViewControllerRemovingSameClass:vc animated:YES];
    } else {
        [nav pushViewController:vc animated:YES];
    }
}

#pragma mark - Agreement Tap

- (void)kb_handleAgreementTap:(UITapGestureRecognizer *)tap {
    UITextView *textView = self.agreementTextView;
    CGPoint point = [tap locationInView:textView];

    // 将点击点转换到 textContainer 坐标系
    CGPoint location = point;
    location.x -= textView.textContainerInset.left;
    location.y -= textView.textContainerInset.top;

    NSLayoutManager *layoutManager = textView.layoutManager;
    NSTextContainer *textContainer = textView.textContainer;
    NSUInteger glyphIndex = [layoutManager glyphIndexForPoint:location
                                              inTextContainer:textContainer];
    if (glyphIndex >= textView.textStorage.length) { return; }

    NSUInteger charIndex = [layoutManager characterIndexForGlyphAtIndex:glyphIndex];

    NSString *lowerFull = textView.text.lowercaseString ?: @"";
    NSRange termsRange = [lowerFull rangeOfString:@"terms of service"];
    NSRange privacyRange = [lowerFull rangeOfString:@"privacy policy"];

    BOOL hitTerms = (termsRange.location != NSNotFound && NSLocationInRange(charIndex, termsRange));
    BOOL hitPrivacy = (privacyRange.location != NSNotFound && NSLocationInRange(charIndex, privacyRange));
    if (hitTerms || hitPrivacy) {
        KBLOG(@"tap policy in KBEmailRegistVC");
        // 后续可统一跳转到协议页
        if (hitTerms == true) {
            [KBHUD showInfo:@"hitTerms"];
        }else{
            [KBHUD showInfo:@"hitPrivacy"];
        }
    }
}

#pragma mark - UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    if (textField == self.emailTextField) {
        [self.passwordTextField becomeFirstResponder];
    } else if (textField == self.passwordTextField) {
        [self.repeatPasswordTextField becomeFirstResponder];
    } else if (textField == self.repeatPasswordTextField) {
        [textField resignFirstResponder];
        [self onTapSubmit];
    }
    return YES;
}

#pragma mark - Lazy UI

- (UIImageView *)bgImageView {
    if (!_bgImageView) {
        _bgImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"login_bg_icon"]];
        _bgImageView.contentMode = UIViewContentModeScaleAspectFill;
        _bgImageView.clipsToBounds = YES;
    }
    return _bgImageView;
}

- (UIImageView *)topRightImageView {
    if (!_topRightImageView) {
        _topRightImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"login_jianp_icon"]];
        _topRightImageView.contentMode = UIViewContentModeScaleAspectFit;
        _topRightImageView.clipsToBounds = YES;
    }
    return _topRightImageView;
}

- (UIButton *)backButton {
    if (!_backButton) {
        _backButton = [UIButton buttonWithType:UIButtonTypeCustom];
        UIImage *img = [UIImage imageNamed:@"back"];
        if (!img) { img = [UIImage imageNamed:@"back_black_icon"]; }
        if (img) {
            [_backButton setImage:img forState:UIControlStateNormal];
        }
        _backButton.adjustsImageWhenHighlighted = YES;
        _backButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
        [_backButton addTarget:self action:@selector(onTapBack) forControlEvents:UIControlEventTouchUpInside];
    }
    return _backButton;
}

- (UIView *)contentContainerView {
    if (!_contentContainerView) {
        _contentContainerView = [UIView new];
        _contentContainerView.backgroundColor = [UIColor whiteColor];
    }
    return _contentContainerView;
}

- (UIScrollView *)scrollView {
    if (!_scrollView) {
        _scrollView = [UIScrollView new];
        _scrollView.showsVerticalScrollIndicator = NO;
        _scrollView.alwaysBounceVertical = NO; // 内容不超出时不产生多余回弹
        _scrollView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
    }
    return _scrollView;
}

- (UIView *)scrollContentView {
    if (!_scrollContentView) {
        _scrollContentView = [UIView new];
        _scrollContentView.backgroundColor = [UIColor clearColor];
    }
    return _scrollContentView;
}

- (UILabel *)titleLabel {
    if (!_titleLabel) {
        _titleLabel = [UILabel new];
        // 注册页标题
        _titleLabel.text = KBLocalized(@"Sign Up");
        _titleLabel.textColor = [UIColor colorWithHex:KBBlackValue];
        _titleLabel.font = [KBFont bold:18];
        _titleLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _titleLabel;
}

- (UIView *)emailFieldContainer {
    if (!_emailFieldContainer) {
        _emailFieldContainer = [UIView new];
        _emailFieldContainer.backgroundColor = [UIColor colorWithHex:0xF7F7F7];
        _emailFieldContainer.layer.cornerRadius = 10.0;
        _emailFieldContainer.layer.masksToBounds = YES;
    }
    return _emailFieldContainer;
}

- (UITextField *)emailTextField {
    if (!_emailTextField) {
        _emailTextField = [[UITextField alloc] init];
        _emailTextField.delegate = self;
        _emailTextField.keyboardType = UIKeyboardTypeEmailAddress;
        _emailTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;
        _emailTextField.autocorrectionType = UITextAutocorrectionTypeNo;
        _emailTextField.clearButtonMode = UITextFieldViewModeWhileEditing;
        _emailTextField.textColor = [UIColor colorWithHex:KBBlackValue];
        _emailTextField.font = [KBFont regular:14];
        _emailTextField.returnKeyType = UIReturnKeyNext;
        
        NSString *ph = KBLocalized(@"Enter Email Address");
        _emailTextField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:ph
                                                                                attributes:@{
            NSForegroundColorAttributeName : [UIColor colorWithWhite:0.75 alpha:1.0],
            NSFontAttributeName : [KBFont regular:14]
        }];
    }
    return _emailTextField;
}

- (UIView *)passwordFieldContainer {
    if (!_passwordFieldContainer) {
        _passwordFieldContainer = [UIView new];
        _passwordFieldContainer.backgroundColor = [UIColor colorWithHex:0xF7F7F7];
        _passwordFieldContainer.layer.cornerRadius = 10.0;
        _passwordFieldContainer.layer.masksToBounds = YES;
    }
    return _passwordFieldContainer;
}

- (UITextField *)passwordTextField {
    if (!_passwordTextField) {
        _passwordTextField = [[UITextField alloc] init];
        _passwordTextField.delegate = self;
        _passwordTextField.secureTextEntry = YES;
        _passwordTextField.textColor = [UIColor colorWithHex:KBBlackValue];
        _passwordTextField.font = [KBFont regular:14];
        _passwordTextField.returnKeyType = UIReturnKeyDone;
        
        NSString *ph = KBLocalized(@"Enter Password");
        _passwordTextField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:ph
                                                                                   attributes:@{
            NSForegroundColorAttributeName : [UIColor colorWithWhite:0.75 alpha:1.0],
            NSFontAttributeName : [KBFont regular:14]
        }];
    }
    return _passwordTextField;
}

- (UIButton *)passwordToggleButton {
    if (!_passwordToggleButton) {
        _passwordToggleButton = [UIButton buttonWithType:UIButtonTypeCustom];
        UIImage *eye = [UIImage imageNamed:@"login_eye_icon"];
        UIImage *eyeSlash = [UIImage imageNamed:@"login_eyeslash_icon"];
        [_passwordToggleButton setImage:eye forState:UIControlStateNormal];
        [_passwordToggleButton setImage:eyeSlash forState:UIControlStateSelected];
        [_passwordToggleButton addTarget:self
                                  action:@selector(onTapTogglePassword:)
                        forControlEvents:UIControlEventTouchUpInside];
    }
    return _passwordToggleButton;
}

- (UIView *)repeatPasswordFieldContainer {
    if (!_repeatPasswordFieldContainer) {
        _repeatPasswordFieldContainer = [UIView new];
        _repeatPasswordFieldContainer.backgroundColor = [UIColor colorWithHex:0xF7F7F7];
        _repeatPasswordFieldContainer.layer.cornerRadius = 10.0;
        _repeatPasswordFieldContainer.layer.masksToBounds = YES;
    }
    return _repeatPasswordFieldContainer;
}

- (UITextField *)repeatPasswordTextField {
    if (!_repeatPasswordTextField) {
        _repeatPasswordTextField = [[UITextField alloc] init];
        _repeatPasswordTextField.delegate = self;
        _repeatPasswordTextField.secureTextEntry = YES;
        _repeatPasswordTextField.textColor = [UIColor colorWithHex:KBBlackValue];
        _repeatPasswordTextField.font = [KBFont regular:14];
        _repeatPasswordTextField.returnKeyType = UIReturnKeyDone;
        
        NSString *ph = KBLocalized(@"Enter Repeat Password");
        _repeatPasswordTextField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:ph
                                                                                        attributes:@{
            NSForegroundColorAttributeName : [UIColor colorWithWhite:0.75 alpha:1.0],
            NSFontAttributeName : [KBFont regular:14]
        }];
    }
    return _repeatPasswordTextField;
}

- (UIButton *)repeatPasswordToggleButton {
    if (!_repeatPasswordToggleButton) {
        _repeatPasswordToggleButton = [UIButton buttonWithType:UIButtonTypeCustom];
        UIImage *eye = [UIImage imageNamed:@"login_eye_icon"];
        UIImage *eyeSlash = [UIImage imageNamed:@"login_eyeslash_icon"];
        [_repeatPasswordToggleButton setImage:eye forState:UIControlStateNormal];
        [_repeatPasswordToggleButton setImage:eyeSlash forState:UIControlStateSelected];
        [_repeatPasswordToggleButton addTarget:self
                                        action:@selector(onTapTogglePassword:)
                              forControlEvents:UIControlEventTouchUpInside];
    }
    return _repeatPasswordToggleButton;
}

- (UIButton *)forgotPasswordButton {
    // 注册页当前未使用“忘记密码”，保留方法避免外部引用报错
    return nil;
}

- (UIButton *)submitButton {
    if (!_submitButton) {
        _submitButton = [UIButton buttonWithType:UIButtonTypeCustom];
        // 文案可按实际是“Login”还是“Sign Up”调整
        [_submitButton setTitle:KBLocalized(@"Login") forState:UIControlStateNormal];
        [_submitButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        _submitButton.titleLabel.font = [KBFont medium:16];
        _submitButton.backgroundColor = [UIColor colorWithHex:KBColorValue];
        _submitButton.layer.cornerRadius = 11.0;
        _submitButton.layer.masksToBounds = YES;
        [_submitButton addTarget:self
                          action:@selector(onTapSubmit)
                forControlEvents:UIControlEventTouchUpInside];
	    }
	    return _submitButton;
	}

- (UIControl *)appleLoginButton {
    if (!_appleLoginButton) {
        ASAuthorizationAppleIDButton *btn = [ASAuthorizationAppleIDButton buttonWithType:ASAuthorizationAppleIDButtonTypeSignIn
                                                                                   style:ASAuthorizationAppleIDButtonStyleWhite];
        [btn addTarget:self action:@selector(onTapAppleLogin) forControlEvents:UIControlEventTouchUpInside];
        btn.cornerRadius = 10.0;
        btn.layer.borderColor = [UIColor colorWithHex:0xE5E5E5].CGColor;
        btn.layer.borderWidth = 1;
        btn.layer.cornerRadius = 10.0;
        btn.layer.masksToBounds = true;
        _appleLoginButton = btn;
    }
    return _appleLoginButton;
}

- (UIButton *)emailLoginButton {
    if (!_emailLoginButton) {
        _emailLoginButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_emailLoginButton setTitle:KBLocalized(@"Continue Via Email") forState:UIControlStateNormal];
        [_emailLoginButton setTitleColor:[UIColor colorWithHex:KBBlackValue] forState:UIControlStateNormal];
        _emailLoginButton.titleLabel.font = [KBFont medium:19];
        _emailLoginButton.backgroundColor = [UIColor whiteColor];
        _emailLoginButton.layer.cornerRadius = 10.0;
        _emailLoginButton.layer.masksToBounds = YES;
        _emailLoginButton.layer.borderColor = [UIColor colorWithHex:0xE5E5E5].CGColor;
        _emailLoginButton.layer.borderWidth = 1;
        _emailLoginButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
        
        UIImage *icon = [UIImage imageNamed:@"login_email_icon"];
        if (icon) {
            CGFloat targetHeight = 12;
            CGFloat scale = targetHeight / icon.size.height;
            CGSize targetSize = CGSizeMake(icon.size.width * scale, targetHeight);
            
            UIGraphicsBeginImageContextWithOptions(targetSize, NO, 0.0);
            [icon drawInRect:CGRectMake(0, 0, targetSize.width, targetSize.height)];
            UIImage *scaledIcon = UIGraphicsGetImageFromCurrentImageContext();
            UIGraphicsEndImageContext();
            
            [_emailLoginButton setImage:scaledIcon forState:UIControlStateNormal];
            // 图标与文字间距
            _emailLoginButton.titleEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 0);
        }
        
        [_emailLoginButton addTarget:self
                              action:@selector(onTapEmailLogin)
                    forControlEvents:UIControlEventTouchUpInside];
    }
    return _emailLoginButton;
}

- (UITextView *)agreementTextView {
    if (!_agreementTextView) {
        _agreementTextView = [UITextView new];
        _agreementTextView.backgroundColor = [UIColor clearColor];
        _agreementTextView.editable = NO;
        _agreementTextView.selectable = NO;
        _agreementTextView.scrollEnabled = NO;
        _agreementTextView.textAlignment = NSTextAlignmentCenter;
        _agreementTextView.textContainerInset = UIEdgeInsetsZero;
        _agreementTextView.textContainer.lineFragmentPadding = 0;

        NSString *fullText = @"By continuing, you agree to our terms of service and confirm that you have read our privacy policy";
        NSString *termsText = @"terms of service";
        NSString *privacyText = @"privacy policy";

        NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
        paragraph.alignment = NSTextAlignmentCenter;

        NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:fullText
                                                                                 attributes:@{
            NSFontAttributeName : [KBFont regular:10],
            NSForegroundColorAttributeName : [UIColor colorWithHex:0x717171],
            NSParagraphStyleAttributeName : paragraph
        }];

        NSString *lowerFull = fullText.lowercaseString;
        NSRange termsRange = [lowerFull rangeOfString:termsText.lowercaseString];
        if (termsRange.location != NSNotFound) {
            [attr addAttributes:@{
                NSForegroundColorAttributeName : [UIColor colorWithHex:KBBlackValue],
                NSUnderlineStyleAttributeName : @(NSUnderlineStyleNone)
            } range:termsRange];
        }

        NSRange privacyRange = [lowerFull rangeOfString:privacyText.lowercaseString];
        if (privacyRange.location != NSNotFound) {
            [attr addAttributes:@{
                NSForegroundColorAttributeName : [UIColor colorWithHex:KBBlackValue],
                NSUnderlineStyleAttributeName : @(NSUnderlineStyleNone)
            } range:privacyRange];
        }

        _agreementTextView.linkTextAttributes = @{
            NSForegroundColorAttributeName : [UIColor colorWithHex:KBBlackValue],
            NSUnderlineStyleAttributeName : @(NSUnderlineStyleNone)
        };
        _agreementTextView.attributedText = attr;

        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self
                                                                              action:@selector(kb_handleAgreementTap:)];
        _agreementTextView.userInteractionEnabled = YES;
        [_agreementTextView addGestureRecognizer:tap];
    }
    return _agreementTextView;
}

//- (UILabel *)accountTipLabel {
//    if (!_accountTipLabel) {
//        _accountTipLabel = [UILabel new];
//        _accountTipLabel.text = KBLocalized(@"Already Have An Account?");
//        _accountTipLabel.font = [KBFont regular:10];
//        _accountTipLabel.textColor = [UIColor colorWithHex:KBBlackValue];
//    }
//    return _accountTipLabel;
//}
//
//- (UIButton *)switchAccountButton {
//    if (!_switchAccountButton) {
//        _switchAccountButton = [UIButton buttonWithType:UIButtonTypeCustom];
//        [_switchAccountButton setTitle:KBLocalized(@"Sign In") forState:UIControlStateNormal];
//        [_switchAccountButton setTitleColor:[UIColor colorWithHex:KBColorValue] forState:UIControlStateNormal];
//        _switchAccountButton.titleLabel.font = [KBFont medium:10];
//        [_switchAccountButton addTarget:self
//                                 action:@selector(onTapSwitchAccount)
//                       forControlEvents:UIControlEventTouchUpInside];
//    }
//    return _switchAccountButton;
//}

@end