JSJP_Student/jiaPei/Modules/OtherModules/VideoModule/ViewModel/RQDspVideoDetailViewModel.m

//
//  RQDspVideoDetailViewModel.m
//  JSJP
//
//  Created by RONGQING on 2022/1/19.
//

#import "RQDspVideoDetailViewModel.h"
#import <ADSuyiSDK/ADSuyiSDKDrawvodAd.h>
#import <ADSuyiSDK/ADSuyiAdapterDrawvodAdView.h>

@interface RQDspVideoDetailViewModel () <ADSuyiSDKDrawvodAdDelegate>
@property (nonatomic, readwrite, strong) NSArray *videosItemArr;
@property (nonatomic, readwrite, strong) NSIndexPath *indexPath;

@property (nonatomic, readwrite, strong) ADSuyiSDKDrawvodAd *drawvodAd;
@property (nonatomic, strong) NSMutableArray<ADSuyiAdapterDrawvodAdView *> *data;
@property (nonatomic, readwrite, strong) VideosItem *lastVideoItem;

@end

@implementation RQDspVideoDetailViewModel
#pragma mark - Public Method
- (instancetype)initWithServices:(id<RQViewModelServices>)services params:(NSDictionary *)params {
    if (self = [super initWithServices:services params:params]) {
        self.videosItemArr = RQ_COMMON_MANAGER.dspListArr;
        self.indexPath = params[RQViewCommonValueKey];
    }
    return self;
}

- (void)dealloc {
    for (ADSuyiAdapterDrawvodAdView *adview in self.data) {
        // 5、广告内存回收
        [adview unRegist];
    }
}

- (void)initialize {
    [super initialize];
    /// 允许下拉刷新
    self.shouldPullDownToRefresh = YES;
    /// 允许上拉加载
    self.shouldPullUpToLoadMore = YES;
    self.prefersNavigationBarHidden = YES;
    self.perPage = 10;
    
    @weakify(self);
    /// 消息列表
    RAC(self, videosItemArr) = self.requestRemoteDataCommand.executionSignals.switchToLatest;
    /// 数据源
    RAC(self, dataSource) = [RACObserve(self, videosItemArr) map:^(NSArray * videosItemArr) {
        @strongify(self)
        return [self dataSourceWithVideosItems:videosItemArr];
    }];
}

#pragma mark - PrivateMethod
// 请求数据
- (RACSignal *)requestRemoteDataSignalWithPage:(NSUInteger)page {
    @weakify(self)
    NSArray * (^videosItemsBlock)(NSArray *) = ^(NSArray *products) {
        @strongify(self)
        [MBProgressHUD rq_hideHUD];
        if (page == 1) {
            /// 下拉刷新
        } else {
            /// 上拉加载
            products = @[(self.videosItemArr ?: @[]).rac_sequence, products.rac_sequence].rac_sequence.flatten.array;
        }
        return products;
    };
    return [[[self.services.client getDspListWithPageNum:page pageSize:self.perPage] map:videosItemsBlock] doError:^(NSError * _Nonnull error) {
        [MBProgressHUD rq_showErrorTips:error];
    }];
}

#pragma mark - 辅助方法
- (NSArray *)dataSourceWithVideosItems:(NSArray *)videosItemArr {
    if (RQObjectIsNil(videosItemArr) || videosItemArr.count == 0)  return nil;
    NSArray *viewModels = [videosItemArr.rac_sequence map:^(VideosItem *videosItem) {
        RQCommonGroupViewModel *group = [RQCommonGroupViewModel groupViewModel];
        videosItem.index = [videosItemArr indexOfObject:videosItem] + 1;
        videosItem.totalNum = videosItemArr.count;
        RQDspVideoDetailItemViewModel *dspVideoDetailItemViewModel = [[RQDspVideoDetailItemViewModel alloc] initWithVideosItem:videosItem];
        dspVideoDetailItemViewModel.rowHeight = RQ_SCREEN_HEIGHT;
        dspVideoDetailItemViewModel.operation = ^{
        };
        group.itemViewModels = @[dspVideoDetailItemViewModel];
        return group;
    }].array;
    [self loadDrawvodAd];
    return viewModels ?: @[] ;
}

- (void)loadDrawvodAd {
    // 2、加载沉浸式视频广告
    [self.drawvodAd load:4];
}

#pragma mark - ADSuyiSDKDrawvodAdDelegate
- (void)adsy_drawvodAdSuccessToLoad:(ADSuyiSDKDrawvodAd *)drawvodAd drawvodAdArray:(NSArray<ADSuyiAdapterDrawvodAdView *> *)drawvodAdViewArray {
    for (ADSuyiAdapterDrawvodAdView *adView in drawvodAdViewArray) {
        // 3、渲染沉浸式广告
        [adView render];
    }
}

- (void)adsy_drawvodAdFailToLoad:(ADSuyiSDKDrawvodAd *)drawvodAd errorModel:(ADSuyiAdapterErrorDefine *)errorModel {
    
}

- (void)adsy_drawvodAdSuccessToRender:(ADSuyiSDKDrawvodAd *)drawvodAd view:(ADSuyiAdapterDrawvodAdView *)drawvodAdView {
    // 4、渲染成功，此时高度正常，资源加载中，可'展示
    NSMutableArray *dataSourceArr = [NSMutableArray arrayWithArray:self.dataSource];
    [self.data addObject:drawvodAdView];
    NSInteger i = 8;
    if (self.lastVideoItem) {
        if (self.lastVideoItem.index < dataSourceArr.count) {
            i = self.lastVideoItem.index + arc4random() % (dataSourceArr.count -  self.lastVideoItem.index) + 4;
        } else {
            return;
        }
    } else {
        i = (dataSourceArr.count > 6)? 6 + arc4random() % (dataSourceArr.count -  6) : 0;
    }
    
    if (i > dataSourceArr.count) {
        return;
    }
//    VideosItem *videoItem = dataSourceArr[i];
//    videoItem.index = i;
//    videoItem.totalNum = dataSourceArr.count + 1;
    RQCommonGroupViewModel *group = dataSourceArr[i];
    RQDspVideoDetailItemViewModel *dspVideoDetailItemViewModel = group.itemViewModels.firstObject;
    dspVideoDetailItemViewModel.videosItem.adView = drawvodAdView;
    dspVideoDetailItemViewModel.rowHeight = RQ_SCREEN_HEIGHT;
    dspVideoDetailItemViewModel.operation = ^{
    };
    group.itemViewModels = @[dspVideoDetailItemViewModel];
    
    [dataSourceArr replaceObjectAtIndex:i withObject:group];
    self.dataSource = dataSourceArr.copy;
    self.lastVideoItem = dspVideoDetailItemViewModel.videosItem;
}

- (void)adsy_drawvodAdFailToRender:(ADSuyiSDKDrawvodAd *)drawvodAd view:(ADSuyiAdapterDrawvodAdView *)drawvodAdView error:(nullable NSError *)error {
    
}

- (void)adsy_drawvodAdPlayerDidPlayFinish:(ADSuyiAdapterDrawvodAdView *)drawvodAdView {
    
}

- (void)adsy_drawvodAdDidExposure:(ADSuyiAdapterDrawvodAdView *)drawvodAdView {
    
}

- (void)adsy_drawvodAdDidClick:(ADSuyiAdapterDrawvodAdView *)drawvodAdView {
    
}

#pragma mark - LazyLoad
- (ADSuyiSDKDrawvodAd *)drawvodAd {
    if(!_drawvodAd) {
        // 1、初始化沉浸式视频广告，流程和信息流广告类似
        _drawvodAd = [[ADSuyiSDKDrawvodAd alloc] initWithSize:RQControllerHelper.currentViewController.view.frame.size];
        _drawvodAd.posId = @"0121212a7b45ec720e";
        _drawvodAd.controller = RQControllerHelper.currentViewController;
        _drawvodAd.delegate = self;
    }
    return _drawvodAd;
}

- (NSMutableArray<ADSuyiAdapterDrawvodAdView *> *)data {
    if(!_data) {
        _data = [NSMutableArray new];
    }
    return _data;
}
@end