//
//  MSRTL.m
//  YuMi
//
//  Created by duoban on 2024/4/15.
//

#import "YYLabel+MSRTL.h"
#import "NSMutableAttributedString+MSRTL.h"
BOOL isRTLString(NSString *string) {
    if ([string hasPrefix:@"\u202B"]) {
        return YES;
    }
    return NO;
}
@implementation  YYLabel (MSRTL)

+ (void)load {
    Method oldTextMethod = class_getInstanceMethod(self,@selector(setAttributedText:));
    Method newTextMethod = class_getInstanceMethod(self, @selector(msrtl_setAttributedText:));
    method_exchangeImplementations(oldTextMethod, newTextMethod);  //交换成功
}

-(void)msrtl_setAttributedText:(NSAttributedString *)attributedText{
    if(attributedText == nil)return;
    NSMutableAttributedString * attributedString = [[NSMutableAttributedString alloc]init];
    if(self.textAlignment == NSTextAlignmentCenter){
        if (isMSRTL()) {
            [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSRTL]];
//            [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSLTR]];
        }
        [attributedString appendAttributedString:attributedText];
        [self msrtl_setAttributedText:attributedString];
        return;
    }
  
   
    if (isMSRTL()) {
        [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSRTL]];
//        [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSLTR]];
    }
    
    [attributedString appendAttributedString:attributedText];
    [self msrtl_setAttributedText:attributedString];
    if(isMSRTL()){
        self.textAlignment = NSTextAlignmentRight;
    }else{
        if (self.textAlignment == NSTextAlignmentNatural) {
            self.textAlignment  = NSTextAlignmentLeft;
        }
    }
    
}

@end