//
//  RQTestQuestionsViewModel.m
//  SDJK
//
//  Created by 张嵘 on 2021/8/12.
//

#import "RQTestQuestionsViewModel.h"

@interface RQTestQuestionsViewModel ()
@property (nonatomic, readwrite, assign) RQExerciseOptionItemType exerciseOptionItemType;
@property (nonatomic, readwrite, assign) RQAnswerResultsType answerResultsType;
@property (nonatomic, readwrite, copy) NSArray *optionLeftNameArr;
@property (nonatomic, readwrite, assign) RQExerciseType exerciseType;
/// homePageCarType
@property (nonatomic, readwrite, assign) RQHomePageCarType homePageCarType;
/// homePageSubjectType
@property (nonatomic, readwrite, assign) RQHomePageSubjectType homePageSubjectType;
@property (nonatomic, readwrite, assign) RQExerciseDoType exerciseDoType;

@property (nonatomic, readwrite, strong) RQCommonGroupViewModel *explainGroup;
@property (nonatomic, readwrite, strong) RQExercisExplainItemViewModel *exercisExplainItemViewModel;

@end

@implementation RQTestQuestionsViewModel
#pragma mark - Public Method
- (instancetype)initWithServices:(id<RQViewModelServices>)services params:(NSDictionary *)params {
    if (self = [super initWithServices:services params:params]) {
        self.exerciseOptionItemType = RQExerciseOptionItemType_Default;
        self.answerResultsType = RQAnswerResultsType_Unanswered;
        self.exerciseType = [params[RQExerciseTypeKey] integerValue];
        self.exerciseModel = (RQExerciseModel *)params[RQViewModelUtilKey];
        self.homePageCarType = [params[RQHomePageCarTypeKey] integerValue];
        self.homePageSubjectType = [params[RQHomePageSubjectTypeKey] integerValue];
        self.exerciseDoType = RQExerciseDoType_Default;
    }
    return self;
}

- (void)initialize {
    [super initialize];
    
    self.title = @"";
    /// 隐藏导航栏的细线
    self.prefersNavigationBarBottomLineHidden = YES;
    
    ///配置数据
//    [self rq_configureData];
    
    
    
}

- (void)setExerciseModel:(RQExerciseModel *)exerciseModel {
    _exerciseModel = exerciseModel;
    [self rq_configureData];
}

#pragma mark - PrivateMethod
- (void)rq_configureData {
    @weakify(self)
    ///    第零组：题目
    RQCommonGroupViewModel *group0 = [RQCommonGroupViewModel groupViewModel];
    group0.headerHeight = CGFLOAT_MIN;
    group0.footerHeight = CGFLOAT_MIN;
    RQExerciseQuestionItemViewModel *exerciseQuestionItemViewModel = [[RQExerciseQuestionItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel];
    group0.itemViewModels = @[exerciseQuestionItemViewModel];
    
    ///    第二组：答案
    RQCommonGroupViewModel *group2 = [RQCommonGroupViewModel groupViewModel];
    group2.headerHeight = CGFLOAT_MIN;
    group2.footerHeight = CGFLOAT_MIN;
    RQExerciseAnswerItemViewModel *exerciseAnswerItemViewModel = [[RQExerciseAnswerItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel];
    if (RQStringIsNotEmpty(_exerciseModel.userAnswer) && ![_exerciseModel.userAnswer containsString:@"预选Option"] && _exerciseType != RQExerciseType_Test && _exerciseType != RQExerciseType_Exam) {
        group2.itemViewModels = @[exerciseAnswerItemViewModel];
    } else {
        group2.itemViewModels = @[];
    }
    
    ///    第三组：多选题确定按钮
    RQCommonGroupViewModel *group3 = [RQCommonGroupViewModel groupViewModel];
    group3.headerHeight = CGFLOAT_MIN;
    group3.footerHeight = CGFLOAT_MIN;
    RQExerciseOptionSureBtnItemViewModel *exerciseOptionSureBtnItemViewModel = [[RQExerciseOptionSureBtnItemViewModel alloc] init];
    exerciseOptionSureBtnItemViewModel.rowHeight  = RQ_FIT_HORIZONTAL(56.f);
    exerciseOptionSureBtnItemViewModel.operation = ^{
        @strongify(self)
        if ([_exerciseModel.userAnswer containsString:@"预选Option-"]) {
            NSString *userAnswerStr = _exerciseModel.userAnswer;
            userAnswerStr = [userAnswerStr stringByReplacingOccurrencesOfString:@"预选Option-" withString:@""];
            _exerciseModel.userAnswer = userAnswerStr;
            [self rq_configureData];
        } else {
            
        }
    };
    if ([_exerciseModel.answer containsString:@"-"] && self.answerResultsType == RQAnswerResultsType_Unanswered) {
        group3.itemViewModels = @[exerciseOptionSureBtnItemViewModel];
    } else {
        group3.itemViewModels = @[];
    }
    
    
    ///    第四组：练习模式的《收藏、读题+答案、读题、技巧讲解》工具栏
    RQCommonGroupViewModel *group4 = [RQCommonGroupViewModel groupViewModel];
    group4.headerHeight = CGFLOAT_MIN;
    group4.footerHeight = CGFLOAT_MIN;
    RQExerciseToolBarItemViewModel *exerciseToolBarItemViewModel = [[RQExerciseToolBarItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel homePageCarType:self.homePageCarType homePageSubject:self.homePageSubjectType readingQuestionsAndAnswerCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        _exerciseModel.userAnswer = _exerciseModel.answer;
        _exerciseModel.answerResultsType = RQAnswerResultsType_Correct;
        _exerciseDoType = RQExerciseDoType_ReadAndAnswer;
//        self.explainGroup.itemViewModels = RQObjectIsNil(self.exercisExplainItemViewModel.explainModel)? @[] : @[self.exercisExplainItemViewModel];
        [self rq_configureData];
        if (RQ_Exercise_Module.isAutoRead) RQ_Exercise_Module.isAutoRead = NO;
//        return [self readAndAnswerWithExerciseModel:_exerciseModel];
        return [RACSignal empty];
    }] skillExplanationCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        _exerciseModel.isShowSkillExplanation = YES;
        _exerciseDoType = RQExerciseDoType_SkillExplanation;
        if (RQ_Exercise_Module.isAutoRead) RQ_Exercise_Module.isAutoRead = NO;
        [self rq_configureData];
        return [RACSignal empty];
    }]];
    
    exerciseToolBarItemViewModel.rowHeight  = RQ_FIT_HORIZONTAL(85.f);
    group4.itemViewModels = (self.exerciseType == RQExerciseType_Test || self.exerciseType == RQExerciseType_Exam)? @[] : @[exerciseToolBarItemViewModel];
    
    ///    第五组：底部工具栏
    RQCommonGroupViewModel *group5 = [RQCommonGroupViewModel groupViewModel];
    group5.headerHeight = CGFLOAT_MIN;
    group5.footerHeight = CGFLOAT_MIN;
    RQExerciseExamToolBarItemViewModel *exerciseExamToolBarItemViewModel = [[RQExerciseExamToolBarItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel homePageCarType:self.homePageCarType homePageSubject:self.homePageSubjectType readingQuestionsAndAnswerCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        _exerciseModel.userAnswer = _exerciseModel.answer;
        _exerciseModel.answerResultsType = RQAnswerResultsType_Correct;
        _exerciseDoType = RQExerciseDoType_ReadAndAnswer;
        [self rq_configureData];
        if (RQ_Exercise_Module.isAutoRead) RQ_Exercise_Module.isAutoRead = NO;
//        return [self readAndAnswerWithExerciseModel:_exerciseModel];
        return [RACSignal empty];
    }] skillExplanationCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        _exerciseModel.isShowSkillExplanation = YES;
        _exerciseDoType = RQExerciseDoType_SkillExplanation;
        if (RQ_Exercise_Module.isAutoRead) RQ_Exercise_Module.isAutoRead = NO;
        [self rq_configureData];
        return [RACSignal empty];
    }] lastQuestionCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        [self.lastQuestionCommand execute:nil];
        return [RACSignal empty];
    }] nextQuestionCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        [self.nextQuestionCommand execute:nil];
        return [RACSignal empty];
    }] showCatalogueCommand:[[RACCommand alloc] initWithSignalBlock:^RACSignal *(id input) {
        @strongify(self)
        [self.showCatalogueCommand execute:nil];
        return [RACSignal empty];
    }]];
    
    exerciseExamToolBarItemViewModel.rowHeight  = RQ_FIT_HORIZONTAL(80.f);
    group5.itemViewModels = (self.exerciseType != RQExerciseType_Test && self.exerciseType != RQExerciseType_Exam)? @[] : @[exerciseExamToolBarItemViewModel];
    
    
    ///    第一组：选项
    RQCommonGroupViewModel *group1 = [RQCommonGroupViewModel groupViewModel];
    group1.headerHeight = CGFLOAT_MIN;
    group1.footerHeight = CGFLOAT_MIN;
    
    NSMutableArray *optionItemsArr = @[].mutableCopy;
    [[[self.exerciseModel.opts componentsSeparatedByString:@"-"].rac_sequence.signal  deliverOnMainThread] subscribeNext:^(NSString * optionString) {
        @strongify(self)
        if (RQStringIsEmpty(_exerciseModel.userAnswer)) {
            /// 未答题
            _exerciseOptionItemType = RQExerciseOptionItemType_Default;
        } else {
            /// 已答题
            if ([_exerciseModel.answer containsString:@"-"]) {
                /// 多选题
                if ([_exerciseModel.userAnswer containsString:@"预选Option"]) {
                    /// 预选
                    if ([_exerciseModel.userAnswer containsString:optionString]) {
                        _exerciseOptionItemType = RQExerciseOptionItemType_Multiple_Primary;
                    } else {
                        _exerciseOptionItemType = RQExerciseOptionItemType_Default;
                    }
                } else {
                    /// 答题结果
                    
                     NSArray * arr1 = [_exerciseModel.answer componentsSeparatedByString:@"-"];
                     NSArray * arr2 = [_exerciseModel.userAnswer componentsSeparatedByString:@"-"];
                     NSPredicate * filterPredicate = [NSPredicate predicateWithFormat:@"NOT (SELF IN %@)",arr1];
                     NSArray * filter = [arr2 filteredArrayUsingPredicate:filterPredicate];
                    if (filter.count == 0) {
                        /// 答对了
                        self.answerResultsType = RQAnswerResultsType_Correct;
                        if ([_exerciseModel.answer containsString:optionString]) {
                            /// 正确的选项
                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_CorrectOption;
                        } else {
                            /// 错误的选项
                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
                        }
                    } else {
                        /// 答错了
                        self.answerResultsType = RQAnswerResultsType_Error;
                        if ([_exerciseModel.answer containsString:optionString]) {
                            /// 正确的选项
                            _exerciseOptionItemType = RQExerciseOptionItemType_Error_CorrectOption;
                        } else {
                            /// 错误的选项
                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
                        }
                    }
                    
                    
//                    if ([_exerciseModel.answer isEqualToString:_exerciseModel.userAnswer]) {
//                        /// 答对了
//                        self.answerResultsType = RQAnswerResultsType_Correct;
//                        if ([_exerciseModel.answer containsString:optionString]) {
//                            /// 正确的选项
//                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_CorrectOption;
//                        } else {
//                            /// 错误的选项
//                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
//                        }
//                    } else {
//                        /// 答错了
//                        self.answerResultsType = RQAnswerResultsType_Error;
//                        if ([_exerciseModel.answer containsString:optionString]) {
//                            /// 正确的选项
//                            _exerciseOptionItemType = RQExerciseOptionItemType_Error_CorrectOption;
//                        } else {
//                            /// 错误的选项
//                            _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
//                        }
//                    }
                }
            } else {
                /// 单选题
                if ([_exerciseModel.answer isEqualToString:_exerciseModel.userAnswer]) {
                    /// 答对了
                    self.answerResultsType = RQAnswerResultsType_Correct;
                    if ([optionString isEqualToString:_exerciseModel.answer]) {
                        /// 正确的选项
                        _exerciseOptionItemType = RQExerciseOptionItemType_Correct_CorrectOption;
                    } else {
                        /// 错误的选项
                        _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
                    }
                } else {
                    /// 答错了
                    self.answerResultsType = RQAnswerResultsType_Error;
                    if ([optionString isEqualToString:_exerciseModel.answer]) {
                        /// 正确的选项
                        _exerciseOptionItemType = RQExerciseOptionItemType_Error_CorrectOption;
                    } else {
                        /// 错误的选项
                        _exerciseOptionItemType = RQExerciseOptionItemType_Correct_ErrorOption;
                    }
                }
            }
        }
        
        RQExerciseOptionItemViewModel *exerciseOptionItemViewModel = [[RQExerciseOptionItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel opts:optionString RQExerciseOptionItemType:_exerciseOptionItemType exerciseType:self.exerciseType];
        exerciseOptionItemViewModel.rowHeight = RQ_FIT_HORIZONTAL(55.f);
        if ([_exerciseModel.answer containsString:@"-"]) {
            exerciseOptionItemViewModel.title = (([_exerciseModel.userAnswer containsString:optionString]) && self.answerResultsType != RQAnswerResultsType_Unanswered && self.exerciseType != RQExerciseType_Recitation)? @"" : self.optionLeftNameArr[[[self.exerciseModel.opts componentsSeparatedByString:@"-"] indexOfObject:optionString]];
        } else {
            exerciseOptionItemViewModel.title = ([optionString isEqualToString:_exerciseModel.userAnswer] && self.exerciseType != RQExerciseType_Recitation)? @"" : self.optionLeftNameArr[[[self.exerciseModel.opts componentsSeparatedByString:@"-"] indexOfObject:optionString]];
        }
        exerciseOptionItemViewModel.operation = ^{
            @strongify(self)
            if ([_exerciseModel.answer containsString:@"-"]) {
                NSMutableArray *userArray = [NSMutableArray arrayWithArray:RQStringIsEmpty(_exerciseModel.userAnswer)? @[] : [_exerciseModel.userAnswer componentsSeparatedByString:@"-"]];
                if (userArray.count == 0) {
                    [userArray addObject:@"预选Option"];
                }
                if ([userArray containsObject:optionString]) {
                    [userArray removeObject:optionString];
                } else {
                    [userArray addObject:optionString];
                }
                NSString *myAnswer = [userArray componentsJoinedByString:@"-"];
                _exerciseModel.userAnswer = myAnswer;
            } else {
                _exerciseModel.userAnswer = optionString;
            }
            
            [self rq_configureData];
            
        };
        [optionItemsArr addObject:exerciseOptionItemViewModel];
    } completed:^{
        @strongify(self)
        group1.itemViewModels = optionItemsArr.copy;
        [self willChangeValueForKey:@"dataSource"];
        group3.itemViewModels = (self.answerResultsType == RQAnswerResultsType_Unanswered && [_exerciseModel.answer containsString:@"-"])? @[ exerciseOptionSureBtnItemViewModel
        ] : @[];
        if (_answerResultsType != RQAnswerResultsType_Unanswered) {
            self.explainGroup.itemViewModels = RQObjectIsNil(self.exercisExplainItemViewModel.explainModel)? @[] : @[self.exercisExplainItemViewModel];
        }
        self.dataSource = (self.exerciseType != RQExerciseType_Test && self.exerciseType != RQExerciseType_Exam)? @[group0, group1, group2, group3, group4, self.explainGroup, group5] : @[group0, group1, group2, group3, group4, group5, self.explainGroup];
        [self didChangeValueForKey:@"dataSource"];
        _exerciseModel.answerResultsType = _answerResultsType;
        [[NSNotificationCenter defaultCenter] postNotificationName:RQAnswerResultsNotification object:nil userInfo:@{
            RQAnswerResultsKey      :   _exerciseModel,
            RQHomePageCarTypeKey    :   @(self.homePageCarType),
            RQHomePageSubjectTypeKey:   @(self.homePageSubjectType),
            RQExerciseDoTypeKey     :   @(self.exerciseDoType),
        }];
    }];
}

- (RACSignal *)readAndAnswerWithExerciseModel:(RQExerciseModel *)exerciseModel {
    return [RACSignal createSignal:^RACDisposable * _Nullable(id<RACSubscriber>  _Nonnull subscriber) {
        [RQ_MUSIC_MANAGER rq_resetStreamerWithURLString:exerciseModel.issuemp3 DOUAudioStreamerStatusBlock:^(DOUAudioStreamerStatus status) {
            if (status == DOUAudioStreamerFinished) {
                [RQ_MUSIC_MANAGER rq_resetStreamerWithURLString:exerciseModel.answermp3 DOUAudioStreamerStatusBlock:^(DOUAudioStreamerStatus status) {
                    if (status == DOUAudioStreamerFinished) {
                        [subscriber sendNext:@"DOUAudioStreamerFinished"];
                    } else if (status == DOUAudioStreamerPlaying) {
                        [subscriber sendNext:@"DOUAudioStreamerPlaying"];
                    }
                }];
            } else if (status == DOUAudioStreamerPlaying) {
                [subscriber sendNext:@"DOUAudioStreamerPlaying"];
            }
        }];
        return [RACScopedDisposable disposableWithBlock:^{
            /// 取消任务
        }];
    }];
}

     
- (NSArray *)optionLeftNameArr {
    if (!_optionLeftNameArr) {
        _optionLeftNameArr = @[@"A", @"B", @"C", @"D"];
    }
    return _optionLeftNameArr;
}

- (RQCommonGroupViewModel *)explainGroup {
    if (!_explainGroup) {
        _explainGroup = [RQCommonGroupViewModel groupViewModel];
    }
    return _explainGroup;
}

- (RQExercisExplainItemViewModel *)exercisExplainItemViewModel {
    if (!_exercisExplainItemViewModel) {
        _exercisExplainItemViewModel = [[RQExercisExplainItemViewModel alloc] initWithRQExerciseModel:self.exerciseModel];
    }
    return _exercisExplainItemViewModel;
}
@end