keyboard/keyBoard/Class/Pay/V/KBVipSubscribeCell.m

//
//  KBVipSubscribeCell.m
//  keyBoard
//
//  中文注释：订阅选项样式，右侧有选中图标，使用 mas 布局 + 懒加载。
//

#import "KBVipSubscribeCell.h"

@interface KBVipSubscribeCell ()
@property (nonatomic, strong) UIView *cardView;          // 白色卡片背景
@property (nonatomic, strong) UILabel *titleLabel;       // “Monthly Subscription”
@property (nonatomic, strong) UILabel *priceLabel;       // “$4.49”
@property (nonatomic, strong) UILabel *strikeLabel;      // 删除线原价
@property (nonatomic, strong) UIButton *selectButton;    // 右侧选择按钮
@property (nonatomic, strong) CAShapeLayer *borderLayer; // 选中边框
@end

@implementation KBVipSubscribeCell

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        self.contentView.backgroundColor = [UIColor clearColor];
        
        [self.contentView addSubview:self.cardView];
        [self.cardView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.edges.equalTo(self.contentView);
        }];
        
        [self.cardView addSubview:self.titleLabel];
        [self.cardView addSubview:self.priceLabel];
        [self.cardView addSubview:self.strikeLabel];
        [self.cardView addSubview:self.selectButton];
        
        [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.cardView).offset(16);
            make.top.equalTo(self.cardView).offset(16);
        }];
        [self.priceLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.titleLabel);
            make.top.equalTo(self.titleLabel.mas_bottom).offset(6);
        }];
        [self.strikeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.priceLabel.mas_right).offset(10);
            make.centerY.equalTo(self.priceLabel);
        }];
        [self.selectButton mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.equalTo(self.cardView);
            make.right.equalTo(self.cardView).offset(-16);
            make.width.height.mas_equalTo(28);
        }];
        
        // 边框层（选中时显示主题绿）
        self.borderLayer = [CAShapeLayer layer];
        self.borderLayer.strokeColor = [UIColor colorWithWhite:0.9 alpha:1.0].CGColor;
        // 使用透明填充，避免遮挡内部子视图；只显示描边
        self.borderLayer.fillColor = UIColor.clearColor.CGColor;
        self.borderLayer.lineWidth = 1.5;
        // 放到底层，避免盖住 label/button（修复滚动后偶现内容被遮挡变空白）
        [self.cardView.layer insertSublayer:self.borderLayer atIndex:0];
    }
    return self;
}

- (void)layoutSubviews {
    [super layoutSubviews];
    CGFloat radius = 16;
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.cardView.bounds cornerRadius:radius];
    self.cardView.layer.cornerRadius = radius;
    self.cardView.layer.masksToBounds = YES;
    self.borderLayer.frame = self.cardView.bounds;
    self.borderLayer.path = path.CGPath;
}

- (void)prepareForReuse {
    [super prepareForReuse];
    [self applySelected:NO animated:NO];
}

- (void)setSelected:(BOOL)selected {
    [super setSelected:selected];
    [self applySelected:selected animated:NO];
}

- (void)configTitle:(NSString *)title price:(NSString *)price strike:(nullable NSString *)strike {
    self.titleLabel.text = title.length ? title : @"Monthly Subscription";
    self.priceLabel.text = price.length ? price : @"$4.49";
    self.strikeLabel.hidden = (strike.length == 0);
    if (strike.length) {
        // 加删除线
        NSDictionary *attr = @{
            NSStrikethroughStyleAttributeName: @(NSUnderlineStyleSingle),
            NSForegroundColorAttributeName: [UIColor colorWithWhite:0.7 alpha:1.0]
        };
        self.strikeLabel.attributedText = [[NSAttributedString alloc] initWithString:strike attributes:attr];
    }
}

- (void)applySelected:(BOOL)selected animated:(BOOL)animated {
    UIImage *img = [UIImage imageNamed:(selected ? @"pay_circle_sel" : @"pay_circle_normal")];
    [self.selectButton setImage:img forState:UIControlStateNormal];
    CGColorRef color = (selected ? [UIColor colorWithHex:KBColorValue].CGColor : [UIColor colorWithWhite:0.9 alpha:1.0].CGColor);
    void (^changes)(void) = ^{
        self.borderLayer.strokeColor = color;
        self.cardView.layer.shadowOpacity = selected ? 0.12 : 0.0;
        self.cardView.layer.shadowColor = [UIColor colorWithHex:KBColorValue].CGColor;
        self.cardView.layer.shadowRadius = selected ? 8 : 0;
        self.cardView.layer.shadowOffset = CGSizeMake(0, selected ? 4 : 0);
    };
    if (animated) {
        [UIView animateWithDuration:0.15 animations:changes];
    } else {
        changes();
    }
}

#pragma mark - Lazy
- (UIView *)cardView {
    if (!_cardView) {
        _cardView = [UIView new];
        _cardView.backgroundColor = [UIColor whiteColor];
    }
    return _cardView;
}
- (UILabel *)titleLabel {
    if (!_titleLabel) {
        _titleLabel = [UILabel new];
        _titleLabel.text = @"Monthly Subscription";
        _titleLabel.textColor = [UIColor colorWithHex:KBBlackValue];
        _titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
    }
    return _titleLabel;
}
- (UILabel *)priceLabel {
    if (!_priceLabel) {
        _priceLabel = [UILabel new];
        _priceLabel.text = @"$4.49";
        _priceLabel.textColor = [UIColor colorWithHex:KBBlackValue];
        _priceLabel.font = [UIFont systemFontOfSize:28 weight:UIFontWeightBold];
    }
    return _priceLabel;
}
- (UILabel *)strikeLabel {
    if (!_strikeLabel) {
        _strikeLabel = [UILabel new];
        _strikeLabel.text = @"$4.49";
        _strikeLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
        _strikeLabel.textColor = [UIColor colorWithWhite:0.7 alpha:1.0];
    }
    return _strikeLabel;
}
- (UIButton *)selectButton {
    if (!_selectButton) {
        _selectButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_selectButton setImage:[UIImage imageNamed:@"pay_circle_normal"] forState:UIControlStateNormal];
        _selectButton.userInteractionEnabled = NO; // 由外层控制选中
        _selectButton.contentMode = UIViewContentModeCenter;
    }
    return _selectButton;
}

@end