//  MPPositive_PlayerCoverView.swift
//  MusicPlayer
//  Created by Mr.Zhou on 2024/5/8.

import UIKit
import DownloadButton
import MarqueeLabel
//B面播放器封面View(封面，标题，副标题，收藏，下载，进度条View)
class MPPositive_PlayerCoverView: UIView, PKDownloadButtonDelegate {
    ///封面视图
    lazy var coverImageView:UIImageView = {
        let imageView = UIImageView()
        imageView.image = placeholderImage
        imageView.contentMode = .scaleAspectFill
        imageView.layer.masksToBounds = true
        imageView.layer.cornerRadius = 16*width
        return imageView
    }()
    //视频视图
    lazy var videoView:UIView = {
        let videoView:UIView = .init()
        videoView.backgroundColor = .clear
        return videoView
    }()
    ///标题
    lazy var titleLabel:MarqueeLabel = createMarQueeLabel("Loading", font: .systemFont(ofSize: 22*width, weight: .regular), textColor: .init(hex: "#FFFFFF", alpha: 0.85))
    ///副标题
    lazy var subtitleLabel:MarqueeLabel = {
        let label = createMarQueeLabel("Loading", font: .systemFont(ofSize: 12*width, weight: .regular), textColor: .init(hex: "#EEEEEE", alpha: 0.6))
        label.isUserInteractionEnabled = true
        label.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(searchSubtitleClick(_ :))))
        return label
    }()
    lazy var inctorLabel:UILabel = createLabel(">>", font: .systemFont(ofSize: 12*width, weight: .regular), textColor: .init(hex: "#EEEEEE", alpha: 0.6), textAlignment: .left)
    
    ///收藏按钮
    lazy var collectionSongBtn:UIButton = {
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "List_UnCollection'logo"), for: .normal)
        btn.setBackgroundImage(UIImage(named: "List_Collectioned'logo"), for: .selected)
        btn.addTarget(self, action: #selector(collectionSwitchClick(_ :)), for: .touchUpInside)
        return btn
    }()
    ///下载按钮
    lazy var downloadButton:MP_DownloadButton = {
        let btn:MP_DownloadButton = .init()
        //开始下载状态
        btn.startDownloadButton.cleanDefaultAppearance()
        btn.startDownloadButton.setBackgroundImage(UIImage(named: "Song_Unload'logo"), for: .normal)
        //下载结束状态
        btn.downloadedButton.setBackgroundImage(UIImage(named: "Song_Loaded'logo"), for: .normal)
//        btn.downloadedButton.isUserInteractionEnabled = false
        btn.downloadedButton.setAttributedTitle(nil, for: .normal)
        //停止下载状态
        btn.stopDownloadButton.stopButton.setImage(UIImage(named: "download"), for: .normal)
//        btn.stopDownloadButton.isUserInteractionEnabled = false
        btn.stopDownloadButton.tintColor = UIColor(hex: "#80F988")
        btn.stopDownloadButton.stopButtonWidth = 2
        btn.stopDownloadButton.filledLineWidth = 3*width
        btn.stopDownloadButton.filledLineStyleOuter = true
        
        //加载状态设置
        btn.pendingView.tintColor = UIColor(hex: "#80F988")
        btn.pendingView.radius = 12*width
        btn.pendingView.emptyLineRadians = 2*width
        btn.pendingView.spinTime = 3
        btn.delegate = self
        return btn
    }()
    
    ///进度条View
    lazy var sliderView:MPPositive_PlayerSilder = {
        let sliderView:MPPositive_PlayerSilder = .init(frame: .init(x: 0, y: 0, width: 335*width, height: 6*width))
        sliderView.addTarget(self, action: #selector(seekProgressClick(_:forEvent:)), for: .valueChanged)
        sliderView.addTarget(self, action: #selector(seekProgressClick(_:forEvent:)), for: .touchDown)
        sliderView.addTarget(self, action: #selector(seekProgressClick(_:forEvent:)), for: .touchUpInside)
        return sliderView
    }()
    ///缓存条View
    lazy var progressView:UIProgressView = {
        let progressView:UIProgressView = .init()
        progressView.isUserInteractionEnabled = true
        progressView.progressTintColor = .init(hex: "#FFFFFF", alpha: 0.3)
        progressView.trackTintColor = .clear
        progressView.progress = 0
        return progressView
    }()
    ///当前播放时间值Label
    lazy var durationLabel:UILabel = createLabel("00:00" ,font: .systemFont(ofSize: 12*width, weight: .medium), textColor: .init(hex: "#FFFFFF", alpha: 0.85), textAlignment: .left)
    ///最大播放时间值Label
    lazy var maxTimesLabel:UILabel = createLabel("00:00" ,font: .systemFont(ofSize: 12*width, weight: .medium), textColor: .init(hex: "#FFFFFF", alpha: 0.6), textAlignment: .right)
    
    //删除
    var deleteBlock:(() -> Void)?
    //取消
    var cancelBlock:(() -> Void)?
    //副标题查询
    var searchBlock:((String) -> Void)?
    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = .clear
        configure()

        
        NotificationCenter.notificationKey.add(observer: self, selector: #selector(downloadProgressAction(_ :)), notificationName: .download_progress_source)
        NotificationCenter.notificationKey.add(observer: self, selector: #selector(downloadEndAction(_ :)), notificationName: .dowload_end_source)
    }
    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
    
 
    deinit {
        NotificationCenter.default.removeObserver(self)
    }

    //视图配置
    private func configure() {
        //配置封面图
        addSubview(coverImageView)
        coverImageView.snp.makeConstraints { make in
            make.width.equalTo(335*width)
            make.height.equalTo(330*width)
            make.centerX.equalToSuperview()
            make.top.equalToSuperview().offset(12*width)
        }
        
        //添加标题
        addSubview(titleLabel)
        titleLabel.snp.makeConstraints { make in
            make.left.equalTo(coverImageView.snp.left)
            make.top.equalTo(coverImageView.snp.bottom).offset(36*width)
            make.right.equalTo(coverImageView.snp.right).offset(-100*width)
        }
        addSubview(videoView)
        videoView.snp.makeConstraints { make in
            make.left.top.right.equalToSuperview()
            make.bottom.equalTo(titleLabel.snp.top).offset(0)
        }
        videoView.isHidden = true
        addSubview(subtitleLabel)
        subtitleLabel.snp.makeConstraints { make in
            make.left.equalTo(titleLabel)
            make.right.lessThanOrEqualTo(titleLabel)
            make.top.equalTo(titleLabel.snp.bottom).offset(6*width)
        }
        addSubview(inctorLabel)
        inctorLabel.snp.makeConstraints { make in
            make.left.equalTo(subtitleLabel.snp.right).offset(3*width)
            make.centerY.equalTo(subtitleLabel)
        }
        //配置下载和收藏按钮
        addSubview(downloadButton)
        downloadButton.snp.makeConstraints { make in
            make.right.equalTo(coverImageView.snp.right).offset(-12*width)
            make.top.equalTo(coverImageView.snp.bottom).offset(47*width)
            make.width.height.equalTo(24*width)
        }
        addSubview(collectionSongBtn)
        collectionSongBtn.snp.makeConstraints { make in
            make.right.equalTo(downloadButton.snp.left).offset(-20*width)
            make.centerY.equalTo(downloadButton.snp.centerY)
            make.width.height.equalTo(24*width)
        }
        addSubview(progressView)
        progressView.snp.makeConstraints { make in
            make.top.equalTo(subtitleLabel.snp.bottom).offset(25*width)
            make.centerX.equalToSuperview()
            make.width.equalTo(335*width)
            make.height.equalTo(6*width)
        }
        //配置进度条和时间label
        addSubview(sliderView)
        sliderView.snp.makeConstraints { make in
            make.left.right.top.bottom.equalTo(progressView)
        }
        addSubview(durationLabel)
        durationLabel.snp.makeConstraints { make in
            make.left.equalTo(sliderView.snp.left)
            make.top.equalTo(sliderView.snp.bottom).offset(5*width)
        }
        addSubview(maxTimesLabel)
        maxTimesLabel.snp.makeConstraints { make in
            make.right.equalTo(sliderView.snp.right)
            make.top.equalTo(sliderView.snp.bottom).offset(5*width)
        }
    }
    //根据输入videoId检索是否下载
    func setProgress(_ videoId:String) {
        guard videoId.isEmpty == false, videoId == MP_PlayerManager.shared.loadPlayer?.currentVideo?.song?.videoId else {
            return
        }
        MP_DownloadManager.shared.loadQueue.async {
            [weak self] in
            guard let self = self else {return}
            MP_DownloadManager.shared.isDownloadedFileDocuments(videoId) {[weak self] statu in
                guard let self = self else {return}
                if statu == false {
                    //未下载,判断是否加入了下载队列
                    if MP_DownloadManager.shared.isTasksQueue(for: videoId) {
                        //加入下载队列，确定是否活跃下中
                        MP_DownloadManager.shared.isActiveTask(for: videoId){
                            [weak self] status in
                            guard let self = self else {return}
                            if status {
                                DispatchQueue.main.async {
                                    [weak self] in
                                    guard let self = self else {return}
                                    self.downloadButton.state = .downloading
                                }
                                //活跃中，获取下载值
                                MP_DownloadManager.shared.getProgress(for: videoId) {
                                    [weak self] value in
                                    if let progress = value {
                                        //下载中
                                        DispatchQueue.main.async {
                                            [weak self] in
                                            guard let self = self else {return}
                                            self.downloadButton.stopDownloadButton.progress = progress
                                        }
                                    }
                                }
                            }else {
                                //处于队列中，还未开始下载
                                DispatchQueue.main.async {
                                    [weak self] in
                                    guard let self = self else {return}
                                    //未加入下载队列
                                    self.downloadButton.state = .pending
                                }
                            }
                        }
                    }else {
                        //未加入下载队列
                        DispatchQueue.main.async {
                            [weak self] in
                            guard let self = self else {return}
                            //未加入下载队列
                            self.downloadButton.state = .startDownload
                        }
                    }
                }else {
                    //已经完成下载
                    DispatchQueue.main.async {
                        [weak self] in
                        guard let self = self else {return}
                        //已经完成下载
                        self.downloadButton.state = .downloaded
                    }
                }
            }
        }
    }
    //收到progress加载
    @objc private func downloadProgressAction(_ sender:Notification) {
        if let dict = sender.object as? [String:String], let videoId = dict["videoId"], let currentVideoId = MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.videoId, videoId == currentVideoId {
            //比较当前videoId
            setProgress(videoId)
        }
    }
    //收到下载结束
    @objc private func downloadEndAction(_ sender:Notification) {
        if let dict = sender.object as? [String:String], let videoId = dict["videoId"], let currentVideoId = MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.videoId, videoId == currentVideoId {
            setProgress(videoId)
        }
    }
    
    //查询副标题
    @objc private func searchSubtitleClick(_ sender:UITapGestureRecognizer) {
        guard MP_NetWorkManager.shared.netWorkStatu == .reachable else {
            MP_HUD.onlytext("Bad connection~".localizableString(), delay: 1.0, completion: nil)
            return
        }
        guard let text = subtitleLabel.text, text.isEmpty != true else {return}
        if let block = searchBlock {
            block(text)
        }
    }
    
    //调整音乐进度
    @objc private func seekProgressClick(_ sender: UISlider, forEvent event: UIEvent) {
        //获取touchEvent
        let touchEvent = event.allTouches?.first
        //判断点击事件状态
        switch touchEvent?.phase {
        case .began://开始拖动
            //让播放器进入调整状态
            MP_PlayerManager.shared.setEditPorgressStatu()
        case .moved://移动中
            break
        case .ended://结束
            let value = sender.value
            //让播放器恢复状态
            MP_PlayerManager.shared.setEditProgressEnd(value)
        default:
            break
        }
    }
    //切换当前列表收藏状态
    @objc private func collectionSwitchClick(_ sender:UIButton) {
        //根据当前按钮的状况确定是否收藏
        if self.collectionSongBtn.isSelected == true{
            //取消收藏
            self.collectionSongBtn.isSelected = false
            if let currentVideo = MP_PlayerManager.shared.loadPlayer?.currentVideo{
                //移除收藏实例
                MPPositive_CollectionSongModel.fetch(predicate: .init(format: "videoId == %@", (currentVideo.song.videoId ?? ""))) { [weak self] results in
                    results.forEach { i in
                        if i.videoId == currentVideo.song.videoId{
                            MPPositive_CollectionSongModel.delete(i)
                        }
                    }
                    //更新当前播放音乐状态
                    MP_PlayerManager.shared.loadPlayer?.currentVideo?.reloadCollectionAndDownLoad()
                    MPPositive_LoadCoreModel.shared.reloadCollectionSongViewModel(nil)
                }
                MP_AnalyticsManager.shared.player_b_unlove_clickAction(MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.videoId ?? "", videoname: MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.title ?? "", artistname: MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.shortBylineText ?? "")
            }
        }else{
            //添加收藏
            self.collectionSongBtn.isSelected = true
            if let currentVideo = MP_PlayerManager.shared.loadPlayer?.currentVideo{
                //创建收藏实例
                let item = try? MPPositive_CollectionSongModel.create()
                item?.title = currentVideo.title
                item?.videoId = currentVideo.song.videoId
                item?.subtitle = currentVideo.subtitle
                item?.coverImage = currentVideo.coverUrl
                item?.lyricsID = currentVideo.song.lyricsID
                item?.relatedID = currentVideo.song.relatedID
                item?.addTime = Date()
                MPPositive_CollectionSongModel.save()
                //更新当前播放音乐状态
                MP_PlayerManager.shared.loadPlayer?.currentVideo.reloadCollectionAndDownLoad()
                MPPositive_LoadCoreModel.shared.reloadCollectionSongViewModel(nil)
                MP_AnalyticsManager.shared.player_b_love_clickAction(MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.videoId ?? "", videoname: MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.title ?? "", artistname: MP_PlayerManager.shared.loadPlayer?.currentVideo?.song.shortBylineText ?? "")
            }
        }
    }
    //下载按钮代理
    func downloadButtonTapped(_ downloadButton: PKDownloadButton!, currentState state: PKDownloadButtonState) {
        //当前音乐没有下载
        switch state {
        case .startDownload: //开始状态，点击时准备加载
            guard MP_PlayerManager.shared.loadPlayer?.currentVideo != nil, MP_PlayerManager.shared.loadPlayer?.currentVideo?.isDlownd == false else {
                return
            }
            guard MP_NetWorkManager.shared.netWorkStatu == .reachable else {
                MP_HUD.text("Bad connection~".localizableString(), delay: 2.0, completion: nil)
                return
            }
            MP_ADSimpleManager.shared.showLibraryInterstitialAdIfAvailable(completion: nil)
            //切换为准备状态
            downloadButton.state = .pending
            //当开始下载时
            guard let currentVideo = MP_PlayerManager.shared.loadPlayer?.currentVideo else {
                MP_HUD.text("An error occurred while downloading. Please download again.".localizableString(), delay: 1.0) {
                    downloadButton.state = .startDownload
                }
                return
            }
            MP_AnalyticsManager.shared.player_b_download_clickAction(currentVideo.song.videoId ?? "", videoname: currentVideo.song.title ?? "", artistname: currentVideo.song.shortBylineText ?? "")
            //补全了数据,执行下载
            MP_DownloadManager.shared.prepareVideoDownloadTask(from: currentVideo.song)
        case .downloaded://已下载，点击删除下载
            if let block = deleteBlock {
                block()
            }
        default:
            if let block = cancelBlock {
                block()
            }
        }
    }
}