JSJP_Student/jiaPei/Modules/OtherModules/ExerciseModule/ViewModel/ExercisePage/itemViewModel/RQExerciseAnswerItemViewModel.m

//
//  RQExerciseAnswerItemViewModel.m
//  JSJP
//
//  Created by 张嵘 on 2021/8/16.
//

#import "RQExerciseAnswerItemViewModel.h"

@interface RQExerciseAnswerItemViewModel ()
@property (nonatomic, readwrite, strong) NSString *answerString;
@property (nonatomic, readwrite, strong) RQYDTJSModel *ydtJSModel;
@property (nonatomic, readwrite, assign) CGFloat skillHeight;

@property (nonatomic, readwrite, strong) YYLabel *yyLabel;
@property (nonatomic, readwrite, strong) NSMutableAttributedString *skillString;

@end

@implementation RQExerciseAnswerItemViewModel
- (instancetype)initWithRQExerciseModel:(RQExerciseModel *)exerciseModel {
    if (self = [super init]) {
        @weakify(self)
        dispatch_async(dispatch_get_main_queue(), ^{
            @strongify(self)
            NSArray *allOptionsArr = @[@"A",@"B",@"C",@"D"];
            
            NSMutableArray *answerOptionArr = @[].mutableCopy;
            for (int i = 0; i < exerciseModel.ydtQuestionModel.AnswerTrue.length; i ++) {
                NSRange range;
                range.location = i;
                range.length = 1;
                NSString *indexStr = [exerciseModel.ydtQuestionModel.AnswerTrue substringWithRange:range];
                [answerOptionArr addObject:[allOptionsArr objectAtIndex:indexStr.integerValue - 1]];
            }
            self.ydtJSModel = [RQ_YDT_JS_Question_Module getQuestionJSWithQuestionId:exerciseModel.ydtQuestionModel.ID];
            self.answerString = [NSString stringWithFormat:@"答案 %@",[answerOptionArr.mutableCopy componentsJoinedByString:@" "]];
            __block CGFloat space = 0.f;
            if (RQObjectIsNil(self.ydtJSModel)) {
                self.skillHeight = 0.f;
                space = 0.f;
            } else {
                NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:self.ydtJSModel.qb_read_analyse];
                text.yy_font = [UIFont boldSystemFontOfSize:RQ_Exercise_Module.exerciseFontSize];
                text.yy_lineSpacing = 8;
                text.yy_color = RQ_MAIN_TEXT_COLOR_1;
                self.skillString = text;
                NSInteger line = RQ_COMMON_MANAGER.APP_SWITCH? 0 : ((RQ_VIP_Module.isSubject1Vip && RQ_YDTQuestion_Module.subject == RQHomePageSubjectType_SubjectOne)? 0 : ((RQ_VIP_Module.isSubject4Vip && RQ_YDTQuestion_Module.subject == RQHomePageSubjectType_SubjectFour)? 0 : 1));
                CGFloat height = (line == 0)? [self getMessageHeightWithAttributedStr:text andLabel:self.yyLabel] : RQ_FIT_HORIZONTAL(34.f);
                self.skillHeight = height;
                space = 6.f;
            }
            self.rowHeight = [_answerString heightForFont:[UIFont boldSystemFontOfSize:19] width:RQ_SCREEN_WIDTH - (16 * 2) - (8 * 2)] + (8 * 2) + (16 * 2) + space + self.skillHeight;
        });
        
        
    }
    return self;
}


- (CGFloat)getMessageHeightWithAttributedStr:(NSMutableAttributedString *)attributedStr andLabel:(YYLabel *)lb {
    lb.attributedText = attributedStr;
    CGSize introSize = CGSizeMake(RQ_SCREEN_WIDTH - (16 * 2) - (8 * 2), CGFLOAT_MAX);
    YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:introSize text:attributedStr];
    lb.textLayout = layout;
    CGFloat introHeight = layout.textBoundingSize.height;
    return introHeight;
}

- (YYLabel *)yyLabel {
    if (!_yyLabel) {
        _yyLabel = [[YYLabel alloc] init];
    }
    return _yyLabel;
}

- (NSString *)itemClassName {
    return @"RQExerciseAnswerCell";
}

@end