JSJP_Student/jiaPei/Modules/OtherModules/ExerciseModule/View/ExercisePage/RQExerciseQuestionCell.m

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

#import "RQExerciseQuestionCell.h"
#import <ZFPlayer/ZFAVPlayerManager.h>

@interface RQExerciseQuestionCell () <QMUIImagePreviewViewDelegate>
@property  (nonatomic, readwrite, strong) RQExerciseQuestionItemViewModel *viewModel;
@property (weak, nonatomic) IBOutlet YYLabel *questionLabel;
@property (weak, nonatomic) IBOutlet UIImageView *questionImageView;
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *labelHeight;
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *imageViewHeight;

@property (nonatomic, readwrite, strong) ZFPlayerController *zfPlayer;
@property (nonatomic, readwrite, strong) QMUIImagePreviewViewController *imagePreviewViewController;
@property (nonatomic, readwrite, strong) UIImage *subImage;
@end

@implementation RQExerciseQuestionCell
#pragma mark - PublicMethods
+ (instancetype)cellWithTableView:(UITableView *)tableView {
    static NSString *ID = @"RQExerciseQuestionCell";
    RQExerciseQuestionCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
    if (!cell) {
        cell = [self rq_viewFromXib];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
    }
    return cell;
}

- (void)dealloc {
}

- (void)bindViewModel:(RQExerciseQuestionItemViewModel *)viewModel {
    @weakify(self)
    _viewModel = viewModel;

    RAC(self.questionLabel, attributedText) = [[RACObserve(viewModel, qusetionString) takeUntil:self.rac_prepareForReuseSignal] deliverOnMainThread];
    RAC(self.labelHeight, constant) = [[RACObserve(viewModel, labelHeight) takeUntil:self.rac_prepareForReuseSignal] deliverOnMainThread];

    RAC(self.questionImageView, hidden) = [[[RACSignal combineLatest:@[RACObserve(viewModel, imageString),RACObserve(viewModel, videoString)] reduce:^(NSString *imageString , NSString *videoString) {
        return @(RQStringIsEmpty(imageString) && RQStringIsEmpty(videoString));
    }] takeUntil:self.rac_prepareForReuseSignal] deliverOnMainThread];
    
    RAC(self.imageViewHeight, constant) = [[RACObserve(viewModel, imageHeight) takeUntil:self.rac_prepareForReuseSignal] deliverOnMainThread];

    RAC(self.questionImageView, image) = [[[RACObserve(viewModel, imageString) deliverOnMainThread] map:^id _Nullable(id  _Nullable value) {
        if (!RQObjectIsNil(viewModel.exerciseModel.ydtQuestionModel.sinaImage) && !RQ_COMMON_MANAGER.JSJP_Is_Online_Media_Image) {
            return viewModel.exerciseModel.ydtQuestionModel.sinaImage;
        } else {
            @strongify(self)
            __block UIImage *getImage;
            UIImageView *imageView = [[UIImageView alloc] initWithFrame:self.questionImageView.frame];
            [imageView yy_setImageWithURL:[NSURL URLWithString:viewModel.imageString] placeholder:RQWebImagePlaceholder() options:RQWebImageOptionAutomatic completion:^(UIImage * _Nullable image, NSURL * _Nonnull url, YYWebImageFromType from, YYWebImageStage stage, NSError * _Nullable error) {
                getImage = [image qmui_imageResizedInLimitedSize:CGSizeMake(RQ_SCREEN_WIDTH, RQ_SCREEN_WIDTH * ((image.size.height / image.size.width) * 1.00)) resizingMode:QMUIImageResizingModeScaleAspectFill];
            }];
            
            return getImage;
        }
    }] takeUntil:self.rac_prepareForReuseSignal];
    
    RAC(self, subImage) = [[RACObserve(self.questionImageView, image) takeUntil:self.rac_prepareForReuseSignal] deliverOnMainThread];
    
    [self.questionImageView setTapActionWithBlock:^(UITapGestureRecognizer *tap) {
        [[RACScheduler mainThreadScheduler] schedule:^{
            @strongify(self)
            [RQControllerHelper.currentViewController presentViewController:self.imagePreviewViewController animated:YES completion:nil];
        }];
    }];

    if (RQStringIsNotEmpty(viewModel.videoString)) {
        NSURL *moveUrl = [NSURL URLWithString:viewModel.exerciseModel.ydtQuestionModel.media_url];
        if (!RQObjectIsNil(viewModel.exerciseModel.ydtQuestionModel.video_filePath_Url) && !RQ_COMMON_MANAGER.JSJP_Is_Online_Media_Video) {
            moveUrl = viewModel.exerciseModel.ydtQuestionModel.video_filePath_Url;
        }
        self.zfPlayer = [[ZFPlayerController alloc] initWithPlayerManager:[[ZFAVPlayerManager alloc] init] containerView:self.questionImageView];
        self.zfPlayer.assetURLs = @[moveUrl];
        [self.zfPlayer playTheIndex:0];
        /// 播放完成
        self.zfPlayer.playerDidToEnd = ^(id  _Nonnull asset) {
            @strongify(self)
            [self.zfPlayer playTheIndex:0];
        };
    }
    
//    if (RQStringIsNotEmpty(viewModel.imageString)) {
//        self.questionImageView.hidden = NO;
//        self.imageViewHeight.constant = viewModel.imageHeight;
//        self.questionImageView.qmui_smoothAnimation = YES;
//        if (!RQObjectIsNil(viewModel.exerciseModel.ydtQuestionModel.sinaImage) && !RQ_COMMON_MANAGER.JSJP_Is_Online_Media_Image) {
//            self.subImage = viewModel.exerciseModel.ydtQuestionModel.sinaImage;
//            self.questionImageView.image = self.subImage;
//        } else {
//            [self.questionImageView yy_setImageWithURL:[NSURL URLWithString:viewModel.imageString] placeholder:RQWebImagePlaceholder() options:RQWebImageOptionAutomatic completion:^(UIImage * _Nullable image, NSURL * _Nonnull url, YYWebImageFromType from, YYWebImageStage stage, NSError * _Nullable error) {
//                @strongify(self)
//                if ([url.path containsString:@".gif"] ) {
//                    image = [UIImage qmui_animatedImageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:_viewModel.imageString]]];
//                }
//                dispatch_async(dispatch_get_main_queue(), ^{
//                    self.subImage = [image qmui_imageResizedInLimitedSize:CGSizeMake(RQ_SCREEN_WIDTH, RQ_SCREEN_WIDTH * ((image.size.height / image.size.width) * 1.00)) resizingMode:QMUIImageResizingModeScaleAspectFill];
//                    self.questionImageView.image = self.subImage;
//                });
//            }];
//        }
//
//        [self.questionImageView setTapActionWithBlock:^(UITapGestureRecognizer *tap) {
//            @strongify(self)
//            [[RACScheduler mainThreadScheduler] schedule:^{
//                [RQControllerHelper.currentViewController presentViewController:self.imagePreviewViewController animated:YES completion:nil];
//            }];
//        }];
//
//        RAC(self.questionImageView, userInteractionEnabled) = [[RACObserve(RQ_Exercise_Module, isScrolling) map:^id _Nullable(id  _Nullable value) {
//            return @(!RQ_Exercise_Module.isScrolling);
//        }] takeUntil:self.rac_prepareForReuseSignal];
//    } else {
//        if (RQStringIsNotEmpty(viewModel.videoString)) {
//            self.questionImageView.hidden = NO;
//            self.imageViewHeight.constant = viewModel.imageHeight;
//            NSURL *moveUrl = [NSURL URLWithString:viewModel.exerciseModel.ydtQuestionModel.media_url];
//            if (!RQObjectIsNil(viewModel.exerciseModel.ydtQuestionModel.video_filePath_Url) && !RQ_COMMON_MANAGER.JSJP_Is_Online_Media_Video) {
//                moveUrl = viewModel.exerciseModel.ydtQuestionModel.video_filePath_Url;
//            }
//            self.questionImageView.image = RQWebVideoImagePlaceholder();
//            self.zfPlayer = [[ZFPlayerController alloc] initWithPlayerManager:[[ZFAVPlayerManager alloc] init] containerView:self.questionImageView];
//            self.zfPlayer.assetURLs = @[moveUrl];
//            [self.zfPlayer playTheIndex:0];
//            /// 播放完成
//            self.zfPlayer.playerDidToEnd = ^(id  _Nonnull asset) {
//                @strongify(self)
//                [self.zfPlayer playTheIndex:0];
//            };
//        } else {
//            self.questionImageView.hidden = YES;
//        }
//    }
}

#pragma mark - SystemMethods
- (void)awakeFromNib {
    [super awakeFromNib];
    // Initialization code
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

#pragma mark - LazyLoad
- (QMUIImagePreviewViewController *)imagePreviewViewController {
    @weakify(self)
    if (!_imagePreviewViewController) {
        _imagePreviewViewController = [[QMUIImagePreviewViewController alloc] init];
        _imagePreviewViewController.presentingStyle = QMUIImagePreviewViewControllerTransitioningStyleZoom;// 将 present 动画改为 zoom，也即从某个位置放大到屏幕中央。默认样式为 fade。
        _imagePreviewViewController.imagePreviewView.delegate = self;// 将内部的图片查看器 delegate 指向当前 viewController，以获取要查看的图片数据
        // 当需要在退出大图预览时做一些事情的时候，可配合 UIViewController (QMUI) 的 qmui_visibleStateDidChangeBlock 来实现。
        _imagePreviewViewController.qmui_visibleStateDidChangeBlock = ^(QMUIImagePreviewViewController *viewController, QMUIViewControllerVisibleState visibleState) {
            if (visibleState == QMUIViewControllerWillDisappear) {
//                NSInteger exitAtIndex = viewController.imagePreviewView.currentImageIndex;
            }
        };
        self.imagePreviewViewController.sourceImageView = ^UIView *{
            @strongify(self)
            return self.questionImageView;
        };
    }
    return _imagePreviewViewController;
}

#pragma mark - <QMUIImagePreviewViewDelegate>
- (NSUInteger)numberOfImagesInImagePreviewView:(QMUIImagePreviewView *)imagePreviewView {
    return 1;
}

- (void)imagePreviewView:(QMUIImagePreviewView *)imagePreviewView renderZoomImageView:(QMUIZoomImageView *)zoomImageView atIndex:(NSUInteger)index {
    @weakify(self)
    zoomImageView.reusedIdentifier = @(index);
    
    // 模拟异步加载的情况
    if (index == 2) {
        [zoomImageView showLoading];
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            @strongify(self)
            if ([zoomImageView.reusedIdentifier isEqual:@(index)]) {
                [zoomImageView hideEmptyView];
                zoomImageView.image = self.subImage;
                zoomImageView.contentMode = UIViewContentModeScaleAspectFill;
                zoomImageView.maximumZoomScale = 3.f;
            }
        });
    } else {
        zoomImageView.image = self.subImage;
    }
}

- (QMUIImagePreviewMediaType)imagePreviewView:(QMUIImagePreviewView *)imagePreviewView assetTypeAtIndex:(NSUInteger)index {
    return QMUIImagePreviewMediaTypeImage;
}

#pragma mark - <QMUIZoomImageViewDelegate>

- (void)singleTouchInZoomingImageView:(QMUIZoomImageView *)zoomImageView location:(CGPoint)location {
    // 退出图片预览
    [RQControllerHelper.currentViewController dismissViewControllerAnimated:YES completion:nil];
}

@end