//
//  KBLoginVC.m
//  keyBoard
//
//  Created by Mac on 2025/12/2.
//

#import "KBLoginVC.h"
#import <AuthenticationServices/AuthenticationServices.h>

@interface KBLoginVC ()

// 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

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

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

// 按钮
@property (nonatomic, strong) UIControl *appleLoginButton;       // Apple 原生登录按钮（iOS13 以下降级为普通按钮）
@property (nonatomic, strong) UIButton *emailLoginButton;        // 邮箱登录按钮

// 协议 & 底部文案
@property (nonatomic, strong) UILabel *agreementLabel;           // “By Continuing, You Agree To Our”
@property (nonatomic, strong) UIButton *policyButton;            // “Terms Of Service & Privacy Policy”

@property (nonatomic, strong) UILabel *noAccountLabel;           // “Don't Have An Account?”
@property (nonatomic, strong) UIButton *signUpButton;            // “Sign Up”
@property (nonatomic, strong) UIButton *forgotPasswordButton;    // “Forgot Password?”

@end

@implementation KBLoginVC

- (void)viewDidLoad {
    [super viewDidLoad];
    // 使用全屏内容，隐藏自定义导航栏
    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
    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(20));
        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);
        // 顶部位置大致贴合设计稿，可根据实际效果微调
        make.top.equalTo(self.view).offset(272);
    }];
    
    // 标题
    [self.contentContainerView addSubview:self.titleLabel];
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.contentContainerView).offset(32);
        make.centerX.equalTo(self.contentContainerView);
    }];
    
    // Apple 登录按钮
    [self.contentContainerView addSubview:self.appleLoginButton];
    [self.appleLoginButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.titleLabel.mas_bottom).offset(24);
        make.left.equalTo(self.contentContainerView).offset(30);
        make.right.equalTo(self.contentContainerView).offset(-30);
        make.height.mas_equalTo(52);
    }];
    
    // 邮箱登录按钮
    [self.contentContainerView addSubview:self.emailLoginButton];
    [self.emailLoginButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.appleLoginButton.mas_bottom).offset(16);
        make.left.right.height.equalTo(self.appleLoginButton);
    }];
    
    // 底部协议文案
    [self.contentContainerView addSubview:self.policyButton];
    [self.contentContainerView addSubview:self.agreementLabel];
    
    [self.policyButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.contentContainerView);
        make.bottom.equalTo(self.contentContainerView).offset(-KB_SAFE_BOTTOM - 84);
    }];
    
    [self.agreementLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.contentContainerView);
        make.bottom.equalTo(self.policyButton.mas_top).offset(-4);
    }];
    
    // 底部账号相关文案
    UIButton *forgot = self.forgotPasswordButton;
    [self.contentContainerView addSubview:forgot];
    [forgot mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.contentContainerView);
        make.bottom.equalTo(self.contentContainerView).offset(-KB_SAFE_BOTTOM - 24);
    }];
    
    UIView *accountLine = [UIView new];
    [self.contentContainerView addSubview:accountLine];
    [accountLine mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.contentContainerView);
        make.bottom.equalTo(forgot.mas_top).offset(-8);
    }];
    
    [accountLine addSubview:self.noAccountLabel];
    [accountLine addSubview:self.signUpButton];
    
    [self.noAccountLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.bottom.equalTo(accountLine);
    }];
    
    [self.signUpButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.noAccountLabel.mas_right).offset(4);
        make.right.equalTo(accountLine);
        make.centerY.equalTo(self.noAccountLabel);
    }];
}

#pragma mark - Actions

- (void)onTapAppleLogin {
    // 后续可接入 Apple Sign-In 逻辑，这里先占位
}

- (void)onTapEmailLogin {
    // 后续接入邮箱登录逻辑
}

- (void)onTapPolicy {
    // 打开服务条款/隐私政策
}

- (void)onTapSignUp {
    // 打开注册页
}

- (void)onTapForgotPassword {
    // 打开忘记密码页
}

#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;
}

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

- (UILabel *)titleLabel {
    if (!_titleLabel) {
        _titleLabel = [UILabel new];
        _titleLabel.text = KBLocalized(@"Log In To Key Of Love");
        _titleLabel.textColor = [UIColor colorWithHex:KBBlackValue];
        _titleLabel.font = [KBFont bold:18];
        _titleLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _titleLabel;
}

- (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;
        _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:16];
        _emailLoginButton.backgroundColor = [UIColor colorWithHex:0xF7F7F7];
        _emailLoginButton.layer.cornerRadius = 10.0;
        _emailLoginButton.layer.masksToBounds = YES;
        
        UIImage *icon = [UIImage imageNamed:@"login_email_icon"];
        if (icon) {
            [_emailLoginButton setImage:icon forState:UIControlStateNormal];
            // 图片在左，文字在右，保持与截图类似
            _emailLoginButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
            _emailLoginButton.imageEdgeInsets = UIEdgeInsetsMake(0, 16, 0, 0);
            _emailLoginButton.titleEdgeInsets = UIEdgeInsetsMake(0, 32, 0, 0);
        }
        
        [_emailLoginButton addTarget:self action:@selector(onTapEmailLogin) forControlEvents:UIControlEventTouchUpInside];
    }
    return _emailLoginButton;
}

- (UILabel *)agreementLabel {
    if (!_agreementLabel) {
        _agreementLabel = [UILabel new];
        _agreementLabel.text = KBLocalized(@"By Continuing, You Agree To Our");
        _agreementLabel.font = [KBFont regular:12];
        _agreementLabel.textColor = [UIColor colorWithWhite:0.45 alpha:1.0];
        _agreementLabel.textAlignment = NSTextAlignmentCenter;
        _agreementLabel.numberOfLines = 1;
    }
    return _agreementLabel;
}

- (UIButton *)policyButton {
    if (!_policyButton) {
        _policyButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_policyButton setTitle:KBLocalized(@"Terms Of Service & Privacy Policy") forState:UIControlStateNormal];
        [_policyButton setTitleColor:[UIColor colorWithHex:KBColorValue] forState:UIControlStateNormal];
        _policyButton.titleLabel.font = [KBFont regular:12];
        [_policyButton addTarget:self action:@selector(onTapPolicy) forControlEvents:UIControlEventTouchUpInside];
    }
    return _policyButton;
}

- (UILabel *)noAccountLabel {
    if (!_noAccountLabel) {
        _noAccountLabel = [UILabel new];
        _noAccountLabel.text = KBLocalized(@"Don't Have An Account?");
        _noAccountLabel.font = [KBFont regular:13];
        _noAccountLabel.textColor = [UIColor colorWithWhite:0.45 alpha:1.0];
    }
    return _noAccountLabel;
}

- (UIButton *)signUpButton {
    if (!_signUpButton) {
        _signUpButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_signUpButton setTitle:KBLocalized(@"Sign Up") forState:UIControlStateNormal];
        [_signUpButton setTitleColor:[UIColor colorWithHex:KBColorValue] forState:UIControlStateNormal];
        _signUpButton.titleLabel.font = [KBFont medium:13];
        [_signUpButton addTarget:self action:@selector(onTapSignUp) forControlEvents:UIControlEventTouchUpInside];
    }
    return _signUpButton;
}

- (UIButton *)forgotPasswordButton {
    if (!_forgotPasswordButton) {
        _forgotPasswordButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_forgotPasswordButton setTitle:KBLocalized(@"Forgot Password?") forState:UIControlStateNormal];
        [_forgotPasswordButton setTitleColor:[UIColor colorWithHex:KBColorValue] forState:UIControlStateNormal];
        _forgotPasswordButton.titleLabel.font = [KBFont regular:13];
        [_forgotPasswordButton addTarget:self action:@selector(onTapForgotPassword) forControlEvents:UIControlEventTouchUpInside];
    }
    return _forgotPasswordButton;
}

@end