Kulexiu/KulexiuForStudent/KulexiuForStudent/Module/Course/MyGroupCourse/View/MyGroupCourseGroupTipsView.m

//
//  MyGroupCourseGroupTipsView.m
//  KulexiuForStudent
//
//  Created by 王智 on 2024/12/24.
//

#import "MyGroupCourseGroupTipsView.h"

@interface MyGroupCourseGroupTipsView ()

@property (weak, nonatomic) IBOutlet UILabel *tipsLabel;


@end

@implementation MyGroupCourseGroupTipsView

+ (instancetype)sharedInstance {
    MyGroupCourseGroupTipsView *view = [[[NSBundle mainBundle] loadNibNamed:@"MyGroupCourseGroupTipsView" owner:nil options:nil] firstObject];
    return view;
}

- (void)configWithMinStudentCount:(NSInteger)count {
    NSString *descString = [NSString stringWithFormat:@"该小组课销售截止后，报名人数若少于%zd人将取消开课，已购买学员付费金额将自动返还，请您放心购买",count];
    NSMutableParagraphStyle *paragraphStyle = [MyGroupCourseGroupTipsView getParagraphStyleWithFont:[UIFont systemFontOfSize:12.0f] lineHeight:23.0f];
    CGFloat baselineOffset = [MyGroupCourseGroupTipsView getBaseOffline:[UIFont systemFontOfSize:12.0f] lineHeight:23.0f];
    NSMutableAttributedString *introduceAttrs = [[NSMutableAttributedString alloc] initWithString:descString attributes:@{NSParagraphStyleAttributeName:paragraphStyle, NSBaselineOffsetAttributeName:@(baselineOffset),NSFontAttributeName:[UIFont systemFontOfSize:12.0f], NSForegroundColorAttributeName:HexRGB(0x777777)}];
    self.tipsLabel.attributedText = introduceAttrs;
}

+ (CGFloat)getViewHeightWithCount:(NSInteger)count {
    NSString *descString = [NSString stringWithFormat:@"该小组课销售截止后，报名人数若少于%zd人将取消开课，已购买学员付费金额将自动返还，请您放心购买",count];
    return 54 + 30 + [self getViewRealHeight:descString];
}

+ (CGFloat)getBaseOffline:(UIFont *)font lineHeight:(CGFloat)lineHeight {
    CGFloat descender = fabs(font.descender); // descender 为负值，取绝对值
    CGFloat ascender = font.ascender;
    CGFloat fontHeight = ascender + descender;
    CGFloat offset = (lineHeight - fontHeight) / 2.0; // 假设上下均等分布
    return offset;
}

+ (NSMutableParagraphStyle *)getParagraphStyleWithFont:(UIFont *)font lineHeight:(CGFloat)lineHeigh {
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.maximumLineHeight = lineHeigh;
    paragraphStyle.minimumLineHeight = lineHeigh;
    return paragraphStyle;
}

+ (CGFloat)getViewRealHeight:(NSString *)descString {
    NSMutableParagraphStyle *paragraphStyle = [self getParagraphStyleWithFont:[UIFont systemFontOfSize:12.0f] lineHeight:23.0f];
    CGFloat baselineOffset = [self getBaseOffline:[UIFont systemFontOfSize:12.0f] lineHeight:23.0f];
    CGFloat height = [descString boundingRectWithSize:CGSizeMake(KPortraitWidth - 26, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSParagraphStyleAttributeName:paragraphStyle, NSBaselineOffsetAttributeName:@(baselineOffset),NSFontAttributeName:[UIFont systemFontOfSize:12.0f]} context:nil].size.height + 1;
    return height;
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end