//
//  MPPositive_OfflineSongsViewController.swift
//  MusicPlayer
//
//  Created by Mr.Zhou on 2024/5/28.
//

import UIKit

class MPPositive_OfflineSongsViewController: MPPositive_BaseViewController {
    ///表头View
    private lazy var headView:UIView = {
        let headView:UIView = .init(frame: .init(x: 0, y: 0, width: screen_Width, height: (227*width)+navAndstatusBarHeight))
        headView.backgroundColor = .init(hex: "#151718")
        headView.layer.masksToBounds = true
        return headView
    }()
    ///顶部大封面
    private lazy var backImageView:UIImageView = {
        let image:UIImageView = .init(image: placeholderImage)
        image.contentMode = .scaleAspectFill
        image.layer.masksToBounds = true
        return image
    }()
    ///顶部模糊遮罩
    private lazy var backBlurView:UIVisualEffectView = {
        // 创建一个模糊效果
        let blurEffect = UIBlurEffect(style: .dark)
        // 创建一个可交互的毛玻璃视图
        let blurEffectView = UIVisualEffectView(effect: blurEffect)
        blurEffectView.alpha = 0.6
        blurEffectView.isUserInteractionEnabled = false
        return blurEffectView
    }()
    ///阴影渐变图（遮挡封面图）
    private lazy var maskImageView:UIImageView = {
        let imageView:UIImageView = .init(image: .init(named: "List_Cover'mask"))
        imageView.contentMode = .scaleAspectFill
        return imageView
    }()
    ///顶部小封面
    private lazy var coverImageView:UIImageView = {
        let image:UIImageView = .init(image: placeholderImage)
        image.contentMode = .scaleAspectFill
        image.layer.masksToBounds = true
        image.layer.cornerRadius = 8*width
        return image
    }()
    ///歌单标题
    private lazy var titleLabel:UILabel = createLabel("Name", font: .systemFont(ofSize: 18*width, weight: .regular), textColor: .white, textAlignment: .center, lines: 2)
    ///section展示View
    private lazy var sectionShowView:UIView = {
        let sectionView:UIView = .init(frame: .init(x: 0, y: 0, width: screen_Width, height: 175*width))
        sectionView.backgroundColor = .init(hex: "#151718")
        return sectionView
    }()
    
    ///播放全部
    private lazy var playAllBtn:UIButton = {
        let btn = UIButton()
        btn.setImage(UIImage(named: "Center_PlayAll'logo"), for: .normal)
        btn.setTitle(" Play all", for: .normal)
        btn.setTitleColor(.white, for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 14*width, weight: .regular)
        btn.addTarget(self, action: #selector(playAllClick(_ :)), for: .touchUpInside)
        return btn
    }()
    ///随机播放按钮
    private lazy var shuffleBtn:UIButton = {
        let btn = UIButton()
        btn.setImage(UIImage(named: "List_ShufflePlay'logo"), for: .normal)
        btn.setTitle(" Shuffle", for: .normal)
        btn.setTitleColor(.white, for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 14*width, weight: .regular)
        btn.addTarget(self, action: #selector(shuffleClick(_ :)), for: .touchUpInside)
        return btn
    }()
    ///批量删除按钮
    private lazy var bulkDeleteBtn:UIButton = {
        let btn = UIButton()
        btn.setImage(UIImage(named: "Center_BulkDelete'logo"), for: .normal)
        btn.setTitle(" Delete", for: .normal)
        btn.setTitleColor(.white, for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 14*width, weight: .regular)
        btn.addTarget(self, action: #selector(batchDeleteClick(_ :)), for: .touchUpInside)
        return btn
    }()
    ///搜索按钮
    private lazy var searchBtn:UIButton = {
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "Center_Search'logo"), for: .normal)
        btn.addTarget(self, action: #selector(searchActionShowClick(_ :)), for: .touchUpInside)
        return btn
    }()
    //搜索View
    private lazy var searchShowView:MPPositive_CenterListSearchView = .init(frame: .init(x: 0, y: 0, width: screen_Width, height: 30*width))
    ///广告View
    fileprivate lazy var adContainerView:UIView = {
        let adContainerView:UIView = .init(frame: .init(x: 0, y: 0, width: screen_Width, height: 150))
        adContainerView.backgroundColor = .clear
        return adContainerView
    }()
    //原生广告是否展示
    private var isShowAdNatived:Bool = false
    //添加右上角排序按钮
    private lazy var rightBtn:UIButton = {
        let btn:UIButton = .init(frame: .init(x: 0, y: 0, width: 24*width, height: 24*width))
        btn.setBackgroundImage(UIImage(named: "Change Sort'logo"), for: .normal)
        btn.addTarget(self, action: #selector(sortTypeClick(_ :)), for: .touchUpInside)
        return btn
    }()

    ///tableView
    private lazy var tableView:UITableView = {
        let tableView = UITableView(frame: .init(x: 0, y: 0, width: screen_Width, height: screen_Height), style: .plain)
        if #available(iOS 15.0, *) {
            tableView.sectionHeaderTopPadding = 0
        }
        tableView.tableHeaderView = headView
        tableView.backgroundColor = .clear
        tableView.separatorStyle = .none
        tableView.contentInsetAdjustmentBehavior = .never
        tableView.estimatedRowHeight = 200
        tableView.rowHeight = UITableView.automaticDimension
        tableView.bounces = false
        tableView.dataSource = self
        tableView.delegate = self
        tableView.register(MPPositive_SearchResultShowTableViewCell.self, forCellReuseIdentifier: MPPositive_SearchResultShowTableViewCellID)
        tableView.contentInset = .init(top: 0, left: 0, bottom: 70*width, right: 0)
        return tableView
    }()
    private let MPPositive_SearchResultShowTableViewCellID = "MPPositive_SearchResultShowTableViewCell"
    //是否搜索模式
    private var isSearchStyle:Bool = false
    //全部数据
    private var offlines:[MPPositive_DownloadViewModel] = []
    //搜索模式展示的数据组
    private var searchSongs:[MPPositive_DownloadViewModel] = []
    //常态模式展示的数据组
    private var showSongs:[MPPositive_DownloadViewModel] = []
    //当前状态
    private var sortType:Int{
        get{
            if let type = UserDefaults.standard.object(forKey: "Offline_Songs_SortType") as? Int {
                return type
            }else {
                return 0
            }
        }
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        setTitle("")
        setPopBtn()
        configure()
        MP_AdMobManager.shared.layoutLibraryNativeAd(in: adContainerView, index: 1){
            [weak self] in
            self?.reloadNatived()
        }
        MP_AdMobManager.shared.onLibraryNativeAdBlock = {
            [weak adContainerView] in
            guard let adContainerView = adContainerView else {return}
            MP_AdMobManager.shared.layoutLibraryNativeAd(in: adContainerView, index: 1){
                self.reloadNatived()
            }
        }
        searchShowView.cancelBlock = {
            [weak self] in
            guard let self = self else {return}
            cancelSearchAction()
        }
        searchShowView.textBlock = {
            [weak self] (text) in
            guard let self = self else {return}
            isSearchStyle = true
            //获得文本回调，根据文本筛选数据
            reloadSearch(text)
        }
    }
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        reload()
    }
    //刷新列表
    private func reload() {
        MPPositive_LoadCoreModel.shared.reloadLoadSongViewModel {
            [weak self] in
            guard let self = self else {return}
            offlines = MPPositive_LoadCoreModel.shared.loadViewModels
            let coverURL = URL(string: offlines.first?.loadItem.coverImage ?? "")
            backImageView.kf.setImage(with: coverURL, placeholder: placeholderImage)
            coverImageView.kf.setImage(with: coverURL, placeholder: placeholderImage)
            titleLabel.text = "Offline Songs".localizableString()
            playAllBtn.setTitle(" Play (\(offlines.count))", for: .normal)
            isSearchStyle ? reloadSearch(self.searchShowView.textField.text ?? ""):reloadShow()
        }
    }
    //刷新常态展示组
    private func reloadShow() {
//        tableView.showMessage(offlines.count, title: "No Songs")
        switch sortType {
        case 0://从新到旧
            showSongs = offlines.sorted(by: { item1, item2 in
                if let date1 = item1.loadItem.addTime, let date2 = item2.loadItem.addTime {
                    return date1 > date2
                }else {
                    return false
                }
            })
        default://从旧到新
            showSongs = offlines.sorted(by: { item1, item2 in
                if let date1 = item1.loadItem.addTime, let date2 = item2.loadItem.addTime {
                    return date1 < date2
                }else {
                    return true
                }
            })
        }
        tableView.reloadData()
    }
    //刷新搜索组
    private func reloadSearch(_ text:String) {
        if text.isEmpty {
            //当前输入文本为空，展示所有数据
            searchSongs = offlines
        }else {
            //当前输入文本不为空，筛选文本
            searchSongs = offlines.filter({($0.title ?? "").contains(text) || ($0.subtitle ?? "").contains(text)})
        }
        tableView.reloadSections(.init(integer: 0), with: .automatic)
    }
    //刷新原生广告
    @objc private func reloadNatived() {
        isShowAdNatived = true
        tableView.reloadData()
    }
    private func configure() {
        navView.addSubview(rightBtn)
        rightBtn.snp.makeConstraints { make in
            make.width.height.equalTo(24*width)
            make.centerY.equalToSuperview()
            make.right.equalToSuperview().offset(-16*width)
        }
        //添加顶部背景
        headView.addSubview(backImageView)
        backImageView.snp.makeConstraints { make in
            make.left.top.right.equalToSuperview()
            make.height.equalTo((227*width)+navAndstatusBarHeight)
        }
        //添加顶部模糊层
        headView.addSubview(backBlurView)
        backBlurView.snp.makeConstraints { make in
            make.left.top.right.equalToSuperview()
            make.height.equalTo(backImageView)
        }
        //添加顶部阴影
        headView.addSubview(maskImageView)
        maskImageView.snp.makeConstraints { make in
            make.left.right.equalToSuperview()
            make.height.equalTo(120*width)
            make.bottom.equalTo(backImageView)
        }
        //小封面
        headView.addSubview(coverImageView)
        coverImageView.snp.makeConstraints { make in
            make.width.height.equalTo(120*width)
            make.center.equalTo(backImageView)
        }
        //标题
        headView.addSubview(titleLabel)
        titleLabel.snp.makeConstraints { make in
            make.width.lessThanOrEqualToSuperview().multipliedBy(0.7)
            make.centerX.equalToSuperview()
            make.top.equalTo(coverImageView.snp.bottom).offset(30*width)
        }
        //播放全部按钮
        sectionShowView.addSubview(playAllBtn)
        playAllBtn.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(18*width)
            make.top.equalToSuperview().offset(24*width)
        }
        //随机播放按钮
        sectionShowView.addSubview(shuffleBtn)
        shuffleBtn.snp.makeConstraints { make in
            make.left.equalTo(playAllBtn.snp.right).offset(18*width)
            make.centerY.equalTo(playAllBtn)
        }
        sectionShowView.addSubview(bulkDeleteBtn)
        bulkDeleteBtn.snp.makeConstraints { make in
            make.left.equalTo(shuffleBtn.snp.right).offset(18*width)
            make.centerY.equalTo(playAllBtn)
        }
        //搜索
        sectionShowView.addSubview(searchBtn)
        searchBtn.snp.makeConstraints { make in
            make.right.equalToSuperview().offset(-18*width)
            make.width.height.equalTo(24*width)
            make.centerY.equalTo(playAllBtn)
        }
        sectionShowView.addSubview(searchShowView)
        searchShowView.snp.makeConstraints { make in
            make.height.equalTo(45*width)
            make.left.right.equalToSuperview()
            make.centerY.equalTo(searchBtn)
        }
        searchShowView.alpha = 0
        searchShowView.isHidden = true
        searchShowView.isUserInteractionEnabled = false
        //添加广告展示View
        sectionShowView.addSubview(adContainerView)
        adContainerView.snp.makeConstraints { make in
            make.top.equalTo(playAllBtn.snp.bottom).offset(20*width)
            make.left.right.equalToSuperview()
            make.height.equalTo(130*width)
        }
        //添加tableView
        view.addSubview(tableView)
        tableView.snp.makeConstraints { make in
            make.top.left.right.bottom.equalToSuperview()
        }
    }
    //弹出排序框
    @objc private func sortTypeClick(_ sender:UIButton) {
        view.endEditing(true)
        //关闭搜索模式
        cancelSearchAction()
        MPPositive_ModalType = .SortType
        let sortVC = MPPositive_SortTypeViewController(sortType)
        sortVC.chooseBlock = {
            [weak self] (type) in
            guard let self = self else {return}
            UserDefaults.standard.set(type, forKey: "Offline_Songs_SortType")
            reloadShow()
        }
        sortVC.transitioningDelegate = self
        sortVC.modalPresentationStyle = .custom
        present(sortVC, animated: true)
    }
    //搜索
    @objc private func searchActionShowClick(_ sender:UIButton) {
        //点击搜索时，展示搜索框
        UIView.animate(withDuration: 0.2) {
            [weak self] in
            guard let self = self else {return}
            searchShowView.isHidden = false
            //调整searchView的透明度
            searchShowView.alpha = 1
            searchBtn.isUserInteractionEnabled = false
        } completion: { [weak self] statu in
            guard let self = self else {return}
            searchShowView.isUserInteractionEnabled = true
        }
    }
    //取消搜索事件
    private func cancelSearchAction() {
        UIView.animate(withDuration: 0.2) {
            [weak self] in
            guard let self = self else {return}
            searchShowView.isUserInteractionEnabled = false
            searchShowView.alpha = 0
            isSearchStyle = false
        } completion: { [weak self] statu in
            guard let self = self else {return}
            searchShowView.isHidden = true
            searchBtn.isUserInteractionEnabled = true
            reloadShow()
        }
    }
    //播放全部
    @objc private func playAllClick(_ sender:UIButton) {
        guard offlines.count != 0 else {return}
        MPPositive_Debouncer.shared.call {
            [weak self] in
            guard let self = self else {return}
//            guard MP_NetWorkManager.shared.netWorkStatu == .reachable else {
//                MP_HUD.text("Bad connection~".localizableString(), delay: 2.0, completion: nil)
//                return
//            }
            MP_AnalyticsManager.shared.song_clickAction("Offline Song")
            //优先清除数据
            MP_PlayerManager.shared.loadPlayer = nil
            //弹出播放器
            NotificationCenter.notificationKey.post(notificationName: .pup_player_vc)
            MP_AnalyticsManager.shared.player_b_impAction()
            //将当前下载音乐放入列表中
            var array:[MPPositive_SongItemModel] = []
            for (index, song) in offlines.enumerated() {
                let item = MPPositive_SongItemModel()
                item.index = index
                item.coverUrls = [song.loadItem.coverImage ?? ""]
                item.reviewUrls = [song.loadItem.reviewImage ?? ""]
                item.title = song.loadItem.title
                item.longBylineText = song.loadItem.longBylineText
                item.lengthText = song.loadItem.lengthText
                item.shortBylineText = song.loadItem.shortBylineText
                item.lyricsID = song.loadItem.lyricsID
                item.lyrics = song.loadItem.lyrics
                item.videoId = song.loadItem.videoId
                item.relatedID = song.loadItem.relatedID
                array.append(item)
            }
            guard let currentVideo = offlines.first else {return}
            let lodaViewModel = MPPositive_PlayerLoadViewModel(array, currentVideoId: currentVideo.loadItem.videoId ?? "")
            lodaViewModel.improveData(currentVideo.loadItem.videoId ?? "")
            //更改播放器播放类型
            MP_PlayerManager.shared.setPlayType(.normal)
            MP_PlayerManager.shared.loadPlayer = lodaViewModel
            MP_AnalyticsManager.shared.player_b_listAction()
        }
    }
    //随机播放
    @objc private func shuffleClick(_ sender:UIButton) {
        view.endEditing(true)
        guard offlines.count != 0 else {return}
        MPPositive_Debouncer.shared.call {
            [weak self] in
            guard let self = self else {return}
//            guard MP_NetWorkManager.shared.netWorkStatu == .reachable else {
//                MP_HUD.text("Bad connection~".localizableString(), delay: 2.0, completion: nil)
//                return
//            }
            MP_AnalyticsManager.shared.song_clickAction("Offline Song")
            //优先清除数据
            MP_PlayerManager.shared.loadPlayer = nil
            //弹出播放器
            NotificationCenter.notificationKey.post(notificationName: .pup_player_vc)
            MP_AnalyticsManager.shared.player_b_impAction()
            //将当前下载音乐放入列表中
            var array:[MPPositive_SongItemModel] = []
            for (index, song) in offlines.enumerated() {
                let item = MPPositive_SongItemModel()
                item.index = index
                item.coverUrls = [song.loadItem.coverImage ?? ""]
                item.reviewUrls = [song.loadItem.reviewImage ?? ""]
                item.title = song.loadItem.title
                item.longBylineText = song.loadItem.longBylineText
                item.lengthText = song.loadItem.lengthText
                item.shortBylineText = song.loadItem.shortBylineText
                item.lyricsID = song.loadItem.lyricsID
                item.lyrics = song.loadItem.lyrics
                item.videoId = song.loadItem.videoId
                item.relatedID = song.loadItem.relatedID
                array.append(item)
            }
            guard let currentVideo = offlines.randomElement() else {return}
            let lodaViewModel = MPPositive_PlayerLoadViewModel(array, currentVideoId: currentVideo.loadItem.videoId ?? "")
            lodaViewModel.improveData(currentVideo.loadItem.videoId ?? "")
            //更改播放器播放类型
            MP_PlayerManager.shared.setPlayType(.random)
            MP_PlayerManager.shared.loadPlayer = lodaViewModel
            MP_AnalyticsManager.shared.player_b_listAction()
        }
    }
    //批量删除事件
    @objc private func batchDeleteClick(_ sender:UIButton) {
        view.endEditing(true)
        print("点击了批量删除")
        //同时执行弹出事件
        let showVC:MPPositive_BatchDeletionViewController = .init(withOfflines: offlines)
        navigationController?.pushViewController(showVC, animated: true)
    }
}
//MARK: - tableView
extension MPPositive_OfflineSongsViewController: UITableViewDataSource, UITableViewDelegate, UIViewControllerTransitioningDelegate{
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return isSearchStyle ? searchSongs.count:showSongs.count
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: MPPositive_SearchResultShowTableViewCellID, for: indexPath) as! MPPositive_SearchResultShowTableViewCell
        if isSearchStyle {
            cell.loadViewModel = searchSongs[indexPath.row]
        }else {
            cell.loadViewModel = showSongs[indexPath.row]
        }
        cell.moreBlock = {
            [weak self] in
            guard let self = self else {return}
            MPPositive_Debouncer.shared.call {
                let item = self.isSearchStyle ? self.searchSongs[indexPath.row]:self.showSongs[indexPath.row]
                let song = MPPositive_SongItemModel()
                song.coverUrls = [item.loadItem.coverImage ?? ""]
                song.reviewUrls = [item.loadItem.reviewImage ?? ""]
                song.title = item.loadItem.title
                song.longBylineText = item.loadItem.longBylineText
                song.lengthText = item.loadItem.lengthText
                song.shortBylineText = item.loadItem.shortBylineText
                song.lyrics = item.loadItem.lyrics
                song.lyricsID = item.loadItem.lyricsID
                song.videoId = item.loadItem.videoId
                song.relatedID = item.loadItem.relatedID
                MPPositive_ModalType = .MoreOperations
                let moreVC = MPPositive_MoreSongOperationsViewController(song)
                moreVC.disMissBlock = {
                    self.reload()
                }
                moreVC.transitioningDelegate = self
                moreVC.modalPresentationStyle = .custom
                self.present(moreVC, animated: true)
            }
        }
        cell.deleteBlock = {
            [weak self] in
            guard let self = self else {return}
            //点击删除下载
            let alertController = UIAlertController(title: "Delete This Song".localizableString(), message: "Are you sure you want to delete the offline resources of this song?".localizableString(), preferredStyle: .alert)
            let cancel = UIAlertAction(title: "Cancel".localizableString(), style: .cancel)
            alertController.addAction(cancel)
            let sure = UIAlertAction(title: "Confirm".localizableString(), style: .destructive) {(action) in
                guard let videoId = self.isSearchStyle ? self.searchSongs[indexPath.row].loadItem.videoId:self.showSongs[indexPath.row].loadItem.videoId else {return}
                //确定删除
                MP_DownloadManager.shared.deleteFileDocuments(videoId) { videoId in
                    MP_HUD.progress("Loading...".localizableString(), delay: 0.5) {
                        MP_HUD.text("Removed".localizableString(), delay: 1.0, completion: nil)
                        self.reload()
                    }
                }
            }
            alertController.addAction(sure)
            present(alertController, animated: true)
        }
        cell.cancelBlock = {
            [weak self] in
            guard let self = self else {return}
            //点击取消下载
            let alertController = UIAlertController(title: "Cancel Song Download Task".localizableString(), message: "Are you sure you want to cancel the download task of this song?".localizableString(), preferredStyle: .alert)
            let cancel = UIAlertAction(title: "Cancel".localizableString(), style: .cancel)
            alertController.addAction(cancel)
            let sure = UIAlertAction(title: "Confirm".localizableString(), style: .destructive) {(action) in
                guard let videoId = self.isSearchStyle ? self.searchSongs[indexPath.row].loadItem.videoId:self.showSongs[indexPath.row].loadItem.videoId else {return}
                //确定取消
                MP_DownloadManager.shared.cancelDownloadTask(videoId) { videoId in
                    MP_HUD.text("Cancel".localizableString(), delay: 1.0, completion: nil)
                    self.reload()
                }
            }
            alertController.addAction(sure)
            present(alertController, animated: true)
        }
        return cell
    }
    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        return sectionShowView
    }
    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return isShowAdNatived ? 185*width:75*width
    }
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        MPPositive_Debouncer.shared.call {
            [weak self] in
            guard let self = self else {return}
            MP_AnalyticsManager.shared.song_clickAction("Offline Song")
            //优先清除数据
            MP_PlayerManager.shared.loadPlayer = nil
            //弹出播放器
            NotificationCenter.notificationKey.post(notificationName: .pup_player_vc)
            MP_AnalyticsManager.shared.player_b_impAction()
            //将当前下载音乐放入列表中
            var array:[MPPositive_SongItemModel] = []
            for (index, song) in offlines.enumerated() {
                let item = MPPositive_SongItemModel()
                item.index = index
                item.coverUrls = [song.loadItem.coverImage ?? ""]
                item.reviewUrls = [song.loadItem.reviewImage ?? ""]
                item.title = song.loadItem.title
                item.longBylineText = song.loadItem.longBylineText
                item.lengthText = song.loadItem.lengthText
                item.shortBylineText = song.loadItem.shortBylineText
                item.lyricsID = song.loadItem.lyricsID
                item.lyrics = song.loadItem.lyrics
                item.videoId = song.loadItem.videoId
                item.relatedID = song.loadItem.relatedID
                array.append(item)
            }
            let currentVideo = isSearchStyle ? searchSongs[indexPath.row]:showSongs[indexPath.row]
            let lodaViewModel = MPPositive_PlayerLoadViewModel(array, currentVideoId: currentVideo.loadItem.videoId ?? "")
            lodaViewModel.improveData(currentVideo.loadItem.videoId ?? "")
            //更改播放器播放类型
            MP_PlayerManager.shared.setPlayType(.normal)
            MP_PlayerManager.shared.loadPlayer = lodaViewModel
            MP_AnalyticsManager.shared.player_b_listAction()
//            NotificationCenter.notificationKey.post(notificationName: .pup_player_vc)
        }
    }
    func presentationController(forPresented presented: UIViewController, presenting: UIViewController?, source: UIViewController) -> UIPresentationController? {
        return MPPositive_PresentationController(presentedViewController: presented, presenting: presenting)
    }
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let yOffset = scrollView.contentOffset.y
        //当滚动值等于大于当前封面区域时，设置一个toppading值
        if yOffset >= ((153*width)+navAndstatusBarHeight) {
            if tableView.contentInset.top == 0 {
                tableView.contentInset = .init(top: navAndstatusBarHeight, left: 0, bottom: 70*width, right: 0)
                topSafeAndNavView.backgroundColor = .init(hex: "#151718")
            }
        }else {
            if tableView.contentInset.top == navAndstatusBarHeight {
                tableView.contentInset = .init(top: 0, left: 0, bottom: 70*width, right: 0)
                topSafeAndNavView.backgroundColor = .clear
            }
        }
    }
}