YYXC_Student/jiaPei/Modules/HomePageModule/ViewModel/HomePage/RQHomePageSubjectOneOrFourViewModel.m

//
//  RQHomePageSubjectOneOrFourViewModel.m
//  SDJK
//
//  Created by 张嵘 on 2021/7/29.
//

#import "RQHomePageSubjectOneOrFourViewModel.h"
#import "LightingAndSoundVC.h"
#import "TRDetailVC.h"

@interface RQHomePageSubjectOneOrFourViewModel ()
@property (nonatomic, readwrite, assign) RQHomePageCarType homePageCarType;
@property (nonatomic, readwrite, assign) RQHomePageSubjectType homePageSubjectType;
@property (nonatomic, readwrite, strong) RQTreeListModel *treeListModel;

@property (nonatomic, readwrite, copy) NSArray *subjectTwoArr;
@property (nonatomic, readwrite, copy) NSArray *subjectThreeArr;

@property (nonatomic, readwrite, copy) NSArray *currentVideosArr;


@end

@implementation RQHomePageSubjectOneOrFourViewModel
#pragma mark - Public Method
- (instancetype)initWithServices:(id<RQViewModelServices>)services params:(NSDictionary *)params {
    if (self = [super initWithServices:services params:params]) {
        self.homePageCarType = [params[RQHomePageCarTypeKey] integerValue];
        self.homePageSubjectType = [params[RQHomePageSubjectTypeKey] integerValue];
    }
    return self;
}

- (void)initialize {
    [super initialize];
    
    self.title = @"";
//    [self getVideos];
    ///配置数据
//    [self rq_configureData];
    [self rq_configureData0];
}

#pragma mark - PrivateMethod
- (void)rq_configureData {
    @weakify(self)
    /// 当前科目
    NSString *subjectStr = (self.homePageSubjectType == RQHomePageSubjectType_SubjectFour)? @"科目四" : ((self.homePageSubjectType == RQHomePageSubjectType_SubjectThree)? @"科目三" : (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo)? @"科目二" : @"科目一");
    __block NSMutableArray *mutableArrr = @[].mutableCopy;
    
    ///    第零组
    RQCommonGroupViewModel *group0;
    
    RQCommonGroupViewModel *group2 = [RQCommonGroupViewModel groupViewModel];
    
    
    if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
        group0 = [[RQHomeSubPageToolBarOneGroupViewModel alloc] initWithRQHomePageSubjectType:self.homePageSubjectType];
        group0.footerHeight = (RQ_SCREEN_WIDTH - (16 * 3)) / 4.f * (6.f / 4.f);
        
        if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
            group2.itemViewModels = [self.subjectTwoArr.rac_sequence map:^id _Nullable(NSString *titleStr) {
                @strongify(self)
                RQHomeSubPageNormalItemViewModel *item = [[RQHomeSubPageNormalItemViewModel alloc] init];
                item.icon = @"subject2_standart_icon";
                item.title = titleStr;
                item.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, 44.f);
                item.bottomLineHide = [self.subjectTwoArr indexOfObject:titleStr] == self.subjectTwoArr.count + 1;
                item.operation = ^{
                    @strongify(self)
                    TRDetailVC *vc=[[TRDetailVC alloc]init];
                    [vc setFile:titleStr];
                    [self navPushHideTabbarToVC:vc];
                };
                return item;
            }].array;
        } else {
            group2.itemViewModels = [self.subjectThreeArr.rac_sequence map:^id _Nullable(NSString *titleStr) {
                @strongify(self)
                RQHomeSubPageNormalItemViewModel *item = [[RQHomeSubPageNormalItemViewModel alloc] init];
                item.icon = @"subject2_standart_icon";
                item.title = titleStr;
                item.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, 44.f);
                item.bottomLineHide = [self.subjectThreeArr indexOfObject:titleStr] == self.subjectTwoArr.count + 1;
                item.operation = ^{
                    @strongify(self)
                    TRDetailVC *vc=[[TRDetailVC alloc]init];
                    [vc setFile:titleStr];
                    [self navPushHideTabbarToVC:vc];
                };
                return item;
            }].array;
        }
    } else {
        group0 = [RQHomeSubPageToolBarGroupViewModel groupViewModel];
        group0.footerHeight = RQ_FIT_HORIZONTAL(65.f);
    }
    group0.headerHeight = RQ_SHARE_FUNCTION.RQADViewHeight;

    RQHomeSubPageItemViewModel *homeSubPageItemViewModel = [[RQHomeSubPageItemViewModel alloc] initWithRQHomePageCarType:self.homePageCarType homePageSubjectType:self.homePageSubjectType];
    homeSubPageItemViewModel.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, RQ_FIT_HORIZONTAL(359.f));
    homeSubPageItemViewModel.operation = ^{
        
    };

    RQCommonGroupViewModel *group3 = [RQCommonGroupViewModel groupViewModel];
    group3.headerHeight = 10.f;
    group3.headerHeight = 10.f;
    RQHomeSubPageNormalItemViewModel *item0 = [[RQHomeSubPageNormalItemViewModel alloc] init];
    item0.icon = @"subject3_light_ico";
    item0.title = @"灯光操作";
    item0.itemSize = CGSizeMake(RQ_SCREEN_WIDTH / 2.f - 8.f, 54.f);
    item0.operation = ^{
        LightingAndSoundVC *VC = [[LightingAndSoundVC alloc] init];
        VC.styleTag = 4;
        [self navPushHideTabbarToVC:VC];
    };
    item0.bottomLineHide = YES;
    
    RQHomeSubPageNormalItemViewModel *item1 = [[RQHomeSubPageNormalItemViewModel alloc] init];
    item1.icon = @"subject3_voice_icon";
    item1.title = @"语音模拟";
    item1.itemSize = CGSizeMake(RQ_SCREEN_WIDTH / 2.f - 8.f, 54.f);
    item1.bottomLineHide = YES;
    item1.operation = ^{
        LightingAndSoundVC *VC = [[LightingAndSoundVC alloc] init];
        VC.styleTag = 5;
        [self navPushHideTabbarToVC:VC];
    };
    group3.itemViewModels = @[item0, item1];
    
    
    /// 数据源
    RAC(self, dataSource) = [RACObserve(RQ_COMMON_MANAGER, treeListArr) map:^(NSArray * treeListModelArr) {
        @strongify(self)
        if (RQObjectIsNil(treeListModelArr)) {
            group0.itemViewModels = (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo)?  @[] : @[homeSubPageItemViewModel];
            if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
                return @[group0, group2];
            } else if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree) {
                return @[group0, group3, group2];
            } else {
                return @[group0];
            }
        }
        if (treeListModelArr.count > 0) {
            ///    第一组
            RQHomeSubPageVideoHeaderGroupViewModel *group1 = [RQHomeSubPageVideoHeaderGroupViewModel groupViewModel];
            group1.headerHeight = 48.f;
            group1.footerHeight = CGFLOAT_MIN;
            group1.header = (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo)? @"基础操作视频" : ((self.homePageSubjectType == RQHomePageSubjectType_SubjectFour)? @"科目四视频教程" :  @"科目一视频教程");
            __block NSInteger scrollItemSection;
           NSArray *arr = [[treeListModelArr.rac_sequence filter:^BOOL(RQTreeListModel *treeListModel) {
                return [treeListModel.typeName isEqualToString:subjectStr];
            }].array.rac_sequence map:^id _Nullable(RQTreeListModel *treeListModel) {
                self.treeListModel = treeListModel;
                group1.treeListModel = treeListModel;
                group1.homePageSubjectType = self.homePageSubjectType;
                return [treeListModel.children.rac_sequence map:^id _Nullable(ChildrenItem *childrenItem) {
                    NSInteger section = [treeListModel.children indexOfObject:childrenItem];
                    if (childrenItem.videos.count > 0) {
                        return [self dataSourceWithItems:childrenItem.videos treeListModel:treeListModel section:section];
                    } else {
                        if ([childrenItem.typeName isEqualToString:@"基础操作"]) {
                            return [childrenItem.children.rac_sequence map:^id _Nullable(ChildrenItem *childrenItemA) {
                                group1.mySection = section;
                                return [self dataSourceWithItems:childrenItemA.videos treeListModel:treeListModel section:section];
                            }].array;
                        } else {
                            scrollItemSection = section;
                            NSArray *arrr = [childrenItem.children.rac_sequence map:^id _Nullable(ChildrenItem *childrenItemA) {
                                if (childrenItemA.videos.count > 0) {
                                    return childrenItemA;
                                } else {
                                    return nil;
                                }
                            }].array;
                            [mutableArrr addObjectsFromArray:arrr];
                            return nil;
                        }
                    }
                }].array;
            }].array;
            
            [self dataDealWithDataArr:arr completion:^(NSArray *arr) {
                group1.itemViewModels = arr;
            }];
            
            RQHomeSubPageVideoScrollItemViewModel *homeSubPageVideoScrollItemViewModel = [[RQHomeSubPageVideoScrollItemViewModel alloc] initWithChildrenItemArr:mutableArrr.copy treeListModel:self.treeListModel homePageSubjectType:self.homePageSubjectType section:scrollItemSection];
            homeSubPageVideoScrollItemViewModel.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, RQ_FIT_HORIZONTAL(239.f));
            homeSubPageVideoScrollItemViewModel.operation = ^{
                
            };
            
            group0.itemViewModels = @[(self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo)? homeSubPageVideoScrollItemViewModel : homeSubPageItemViewModel];
        
            
            if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
                return group1.itemViewModels.count > 0? @[group0, group1, group2] : @[group0, group2];
            } else if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree) {
                return group1.itemViewModels.count > 0? @[group0, group1, group3, group2] : @[group0, group3 ,group2];
            } else {
                return group1.itemViewModels.count > 0? @[group0, group1] : @[group0];
            }
        } else {
            if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
                return @[group0, group2];
            } else if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree) {
                return @[group0, group3, group2];
            } else {
                return @[group0];
            }
        }
    }];
}

- (void)rq_configureData0 {
    @weakify(self)    
    ///    第零组
    RQCommonGroupViewModel *group0;
    
    RQCommonGroupViewModel *group2 = [RQCommonGroupViewModel groupViewModel];
    
    
    if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
        group0 = [[RQHomeSubPageToolBarOneGroupViewModel alloc] initWithRQHomePageSubjectType:self.homePageSubjectType];
        group0.footerHeight = (RQ_SCREEN_WIDTH - (16 * 3)) / 4.f * (6.f / 4.f);
        
        if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
            group2.itemViewModels = [self.subjectTwoArr.rac_sequence map:^id _Nullable(NSString *titleStr) {
                @strongify(self)
                RQHomeSubPageNormalItemViewModel *item = [[RQHomeSubPageNormalItemViewModel alloc] init];
                item.icon = @"subject2_standart_icon";
                item.title = titleStr;
                item.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, 44.f);
                item.bottomLineHide = [self.subjectTwoArr indexOfObject:titleStr] == self.subjectTwoArr.count + 1;
                item.operation = ^{
                    @strongify(self)
                    TRDetailVC *vc=[[TRDetailVC alloc]init];
                    [vc setFile:titleStr];
                    [self navPushHideTabbarToVC:vc];
                };
                return item;
            }].array;
        } else {
            group2.itemViewModels = [self.subjectThreeArr.rac_sequence map:^id _Nullable(NSString *titleStr) {
                @strongify(self)
                RQHomeSubPageNormalItemViewModel *item = [[RQHomeSubPageNormalItemViewModel alloc] init];
                item.icon = @"subject2_standart_icon";
                item.title = titleStr;
                item.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, 44.f);
                item.bottomLineHide = [self.subjectThreeArr indexOfObject:titleStr] == self.subjectTwoArr.count + 1;
                item.operation = ^{
                    @strongify(self)
                    TRDetailVC *vc=[[TRDetailVC alloc]init];
                    [vc setFile:titleStr];
                    [self navPushHideTabbarToVC:vc];
                };
                return item;
            }].array;
        }
    } else {
        group0 = [RQHomeSubPageToolBarGroupViewModel groupViewModel];
        group0.footerHeight = RQ_FIT_HORIZONTAL(65.f);
    }
    group0.headerHeight = RQ_SHARE_FUNCTION.RQADViewHeight;

    RQHomeSubPageItemViewModel *homeSubPageItemViewModel = [[RQHomeSubPageItemViewModel alloc] initWithRQHomePageCarType:self.homePageCarType homePageSubjectType:self.homePageSubjectType];
    homeSubPageItemViewModel.itemSize = CGSizeMake(RQ_SCREEN_WIDTH, RQ_FIT_HORIZONTAL(359.f));
    homeSubPageItemViewModel.operation = ^{
        
    };
    group0.itemViewModels = (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree ||  self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo)?  @[] : @[homeSubPageItemViewModel];

    RQCommonGroupViewModel *group3 = [RQCommonGroupViewModel groupViewModel];
    group3.headerHeight = 10.f;
    group3.headerHeight = 10.f;
    RQHomeSubPageNormalItemViewModel *item0 = [[RQHomeSubPageNormalItemViewModel alloc] init];
    item0.icon = @"subject3_light_ico";
    item0.title = @"灯光操作";
    item0.itemSize = CGSizeMake(RQ_SCREEN_WIDTH / 2.f - 8.f, 54.f);
    item0.operation = ^{
        LightingAndSoundVC *VC = [[LightingAndSoundVC alloc] init];
        VC.styleTag = 4;
        [self navPushHideTabbarToVC:VC];
    };
    item0.bottomLineHide = YES;
    
    RQHomeSubPageNormalItemViewModel *item1 = [[RQHomeSubPageNormalItemViewModel alloc] init];
    item1.icon = @"subject3_voice_icon";
    item1.title = @"语音模拟";
    item1.itemSize = CGSizeMake(RQ_SCREEN_WIDTH / 2.f - 8.f, 54.f);
    item1.bottomLineHide = YES;
    item1.operation = ^{
        LightingAndSoundVC *VC = [[LightingAndSoundVC alloc] init];
        VC.styleTag = 5;
        [self navPushHideTabbarToVC:VC];
    };
    group3.itemViewModels = @[item0, item1];
    
    RAC(self, dataSource) = [RACObserve(self, currentVideosArr) map:^(NSArray * treeListModelArr) {
        @strongify(self)
        if (self.currentVideosArr.count > 0) {
            ///    第一组
            RQHomeSubPageVideoHeaderGroupViewModel *group1 = [RQHomeSubPageVideoHeaderGroupViewModel groupViewModel];
            group1.headerHeight = 48.f;
            group1.footerHeight = CGFLOAT_MIN;
            group1.header = @"视频教程";
            group1.itemViewModels = [self dataSourceWithItems:self.currentVideosArr treeListModel:nil section:1];
            group1.currentVideoesArr = self.currentVideosArr;
            if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
                return group1.itemViewModels.count > 0? @[group0, group1, group2] : @[group0, group2];
            } else if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree) {
                return group1.itemViewModels.count > 0? @[group0, group1, group3, group2] : @[group0, group3 ,group2];
            } else {
                return group1.itemViewModels.count > 0? @[group0, group1] : @[group0];
            }
        } else {
            if (self.homePageSubjectType == RQHomePageSubjectType_SubjectTwo) {
                return @[group0, group2];
            } else if (self.homePageSubjectType == RQHomePageSubjectType_SubjectThree) {
                return @[group0, group3, group2];
            } else {
                return @[group0];
            }
        }
    }];
}

- (void)dataDealWithDataArr:(NSArray *)dataArr completion:(void (^)(NSArray *arr))completion {
    if (dataArr.count > 0) {
        for (id value in dataArr) {
            if ([value isKindOfClass:[NSArray class]]) {
                [self dataDealWithDataArr:value completion:completion];
                break;
            } else {
                completion(dataArr);
                break;
            }
        }
    } else {
        completion(dataArr);
    }
}

- (NSArray *)dataSourceWithItems:(NSArray *)items treeListModel:(RQTreeListModel *)treeListModel section:(NSInteger)section {
    NSArray *viewModels = [items.rac_sequence map:^(VideosItem *videosItem) {
        RQHomeSubPageVideoItemViewModel *homeSubPageVideoItemViewModel = [[RQHomeSubPageVideoItemViewModel alloc] initWithVideosItem:videosItem];
        CGFloat cellWidth = (RQ_SCREEN_WIDTH - (16  * 3)) / 2.f;
        homeSubPageVideoItemViewModel.itemSize = CGSizeMake(cellWidth, cellWidth * (122.f / 167.f));
        homeSubPageVideoItemViewModel.operation = ^{
            RQVideoDetailViewModel *videoDetailViewModel = [[RQVideoDetailViewModel alloc] initWithServices:RQ_APPDELEGATE.services params:@{
                RQViewModelUtilKey          : treeListModel? treeListModel : self.currentVideosArr,
                RQVideoItemIndexKey         : @(0),
                RQVideoItemIndexPathKey     : [NSIndexPath indexPathForRow:[items indexOfObject:videosItem] inSection:section],
                RQHomePageSubjectTypeKey    : @(self.homePageSubjectType),
            }];
            [RQ_APPDELEGATE.services pushViewModel:videoDetailViewModel animated:YES];
        };
        return homeSubPageVideoItemViewModel;
    }].array;
    
    return viewModels ?: @[];
}

- (void)getVideos {
    if (![Util connectedToNetWork]) {
        showMsgUnconnect();
        return;
    }
    
    NSMutableArray *aArray=[NSMutableArray array];
    [aArray addPro:@"chapterId"    Value:[NSString stringWithFormat:@"%ld",self.homePageSubjectType + 1]];
    [aArray addPro:@"subject"      Value:[NSString stringWithFormat:@"%ld",self.homePageSubjectType + 1]];
    [aArray addPro:@"isPage"       Value:@"0"];
    [aArray addPro:@"pageSize"     Value:@"0"];
    [aArray addPro:@"currentPage"  Value:@"0"];
    
    NSString* method = @"getVideos";
    
    [jiaPeiManager requestAnythingWithURL:method array:aArray data:nil completion:^(NSDictionary *root) {
        
        NSDictionary *dic = @{
            @"body": @[@{
                @"chapter": @"1",
                @"content": @"交通信号灯",
                @"crdate": @"",
                @"id": @"19",
                @"image": @"http://lnxzzfile.oss-cn-beijing.aliyuncs.com/public/video/170906/1-1.jpg",
                @"playNum": @"",
                @"source": @"网络",
                @"subject": @"1",
                @"taglib": @"交通信号灯",
                @"times": @"400",
                @"title": @"【理论】交通信号灯_学车视频",
                @"vHtml": @"",
                @"videoPath": @"http://218.60.2.75:8081/sp/upload/1/1-1.mp4",
                @"videoType": @"1"
            }, @{
               @"chapter":@"1",
               @"content":@"交通标志",
               @"crdate":@"",
               @"id":@"20",
               @"image":@"http://lnxzzfile.oss-cn-beijing.aliyuncs.com/public/video/170906/1-2.jpg",
               @"playNum":@"",
               @"source":@"网络",
               @"subject":@"1",
               @"taglib":@"交通标志",
               @"times":@"1566",
               @"title":@"【理论】交通标志_ 学车视频",
               @"vHtml":@"",
               @"videoPath":@"http://218.60.2.75:8081/sp/upload/1/1-2.mp4",
               @"videoType":@"1"
            }, @{
               @"chapter":@"1",
               @"content":@"交通标线",
               @"crdate":@"",
               @"id":@"21",
               @"image":@"http://lnxzzfile.oss-cn-beijing.aliyuncs.com/public/video/170906/1-3.jpg",
               @"playNum":@"",
               @"source":@"网络",
               @"subject":@"1",
               @"taglib":@"交通标线",
               @"times":@"548",
               @"title":@"【理论】交通标线_学车视频",
               @"vHtml":@"",
               @"videoPath":@"http://218.60.2.75:8081/sp/upload/1/1-3.mp4",
               @"videoType":@"1"
            }, @{
               @"chapter":@"1",
               @"content":@"交通警察指挥手势信号",
               @"crdate":@"",
               @"id":@"22",
               @"image":@"http://lnxzzfile.oss-cn-beijing.aliyuncs.com/public/video/170906/1-4.jpg",
               @"playNum":@"",
               @"source":@"网络",
               @"subject":@"1",
               @"taglib":@"交通警察指挥手势信号",
               @"times":@"767",
               @"title":@"【理论】交通警察指挥手势信号_学车视频",
               @"vHtml":@"",
               @"videoPath":@"http://218.60.2.75:8081/sp/upload/1/1-4.mp4",
               @"videoType":@"1"
            }],
           @"code":@"0",
           @"msg":@"",
           @"other":@""
        };
        
//        root = dic;
        
        if (!root) {
            return ;
        }
        
        if ([root[@"code"] isEqualToString:@"1"]) {
            ShowMsg(root[@"body"]);
            return;
        }
        
        if ([root[@"body"] isKindOfClass:[NSArray class]]) {
            NSMutableArray *arr = @[].mutableCopy;
            for (NSDictionary *dic in root[@"body"]) {
                VideosItem *videoItem = [VideosItem videoItemModelWithDictionary:dic];
                if (arr.count < 4) {
                    [arr addObject:videoItem];
                }
            }
            self.currentVideosArr = arr.copy;
        }
    }];
}


- (void)navPushHideTabbarToVC:(UIViewController *)vc {
    if (RQ_COMMON_MANAGER.YYXC_SERVICE_OPEN) {
        [RQControllerHelper.topNavigationController qmui_pushViewController:vc animated:YES completion:nil];
    } else {
        vc.hidesBottomBarWhenPushed = YES;
        [RQControllerHelper.topNavigationController qmui_pushViewController:vc animated:YES completion:nil];
        vc.hidesBottomBarWhenPushed = NO;
    }
}

- (NSArray *)subjectTwoArr {
    NSArray *arr = @[@"科目二小错误千万别大意",
            @"科目二到底考什么？全部都在这",
            @"科目二考试不过的原因大解析",
            @"侧方停车只是倒车速度慢一点，为什么判不过？",
            @"考官说扣分：“驾考科目二场考五项讲解全攻略”",
            @"科目二考试技巧口诀，小伙伴要记牢哦",
            @"科目二考试详细流程",
            @"科目二之直角拐弯",
            @"科目二考场温馨提示要点图",
            @"侧方停车技巧，超详细!",
            @"四张图让你秒变倒车界的独孤求败!",
            @"倒车入库再也不发愁，蜀黍教你各种倒车技巧!",
            @"科目二五项过关神技巧，超级详细!",
            @"因为这些挂掉，冤枉死!",
            @"科目二坡道，这些不良动作是你考试不过关的根源!",
            @"倒车入位用这三招，想怎么钻就怎么钻!",
            @"科目二失分点都在这，想过来看!",
            @"倒车入库究竟有多难？",
            @"学车入门级知识问题",
            @"科二全程解剖，让“菜鸟级”的你轻松通过考试",
            @"直角转弯操作技巧，一看秒懂",
            @"六张图，教会你“侧方停车”神技能",
            @"全程考试技巧汇总",
            @"坡道定点停车技巧（图解）",
            @"坡道定点找三十公分线的技巧方法",
            @"考驾照14条关键经验，学员含泪总结",
            @"科目二考前准备",
            @"科目二合格标准",
            @"科目二必过考试经验分享",
            @"坡道起步怎么预防倒溜和熄火？",
            @"科目二全程“难点”独家解析！",
            @"科二最难的：倒车入口+坡道起步独家秘笈",
            @"你必须注意的科目二考试须知！"];
    NSMutableArray *array = [NSMutableArray arrayWithArray:arr];
    NSMutableArray *dataArray = [NSMutableArray array];
    for (int i = 0; i < 6; i ++) {
        int index = arc4random()%(array.count - 1);
        [dataArray addObject:array[index]];
        [array removeObjectAtIndex:index];
    }
    return @[];
    return dataArray.copy;
}

- (NSArray *)subjectThreeArr {
    NSArray *arr = @[@"科目三考试评判标准，提前了解不失分",
                     @"科目三原来是这样丢分的",
                     @"三招提高科目三考试成功率",
                     @"科目三考试详细流程",
                     @"科三再升级“人考”改“机考”车内多名安全员",
                     @"科目三--加减档位操作",
                     @"夜考，用这几招轻轻松松过",
                     @"科目三大路考之靠边停车小技巧",
                     @"科目三：模拟夜间行驶场景灯光使用技巧",
                     @"超详细科目三考试口令速记口诀！",
                     @"控制科目三方向的几个生死关键点",
                     @"2015年科目三考试新规则和扣分标准",
                     @"科目三：路考超车须知",
                     @"科目三：电子路考需要注意什么",
                     @"科目三：老手教你靠边停车技术",
                     @"科目三：路考变更车道须知",
                     @"科目三：路考通过人行横道线须知",
                     @"科目三：路考中14项细节必需注意",
                     @"考试指南 - 科目三路考评判标准",
                     @"考试指南 - 科目三路考秘诀",
                     @"考试指南 - 科目三必过的考场经验分享",
                     @"考试指南 - 科目三抽到夜间考试怎么办？",
                     @"考试指南 - 夜考灯光使用攻略，看完就过了！",
                     @"考试指南 - 科目三路考会车攻略"];
    NSMutableArray *array = [NSMutableArray arrayWithArray:arr];
    NSMutableArray *dataArray = [NSMutableArray array];
    for (int i = 0; i < 5; i ++) {
        int index = arc4random()%(array.count - 1);
        [dataArray addObject:array[index]];
        [array removeObjectAtIndex:index];
    }
    return @[];
    return dataArray.copy;
}


@end