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

import UIKit

class MPPositive_OfflineSongsViewController: MPPositive_BaseViewController {
    ///广告View
    fileprivate lazy var adContainerView:UIView = {
        let adContainerView:UIView = .init(frame: .init(x: 0, y: 0, width: screen_Width, height: 300*width))
        adContainerView.backgroundColor = .clear
        return adContainerView
    }()
    private lazy var numbersLabel:UILabel = createLabel(font: .systemFont(ofSize: 18*width, weight: .regular), textColor: .white, textAlignment: .left)
    //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
    }()
    ///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))
    ///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.backgroundColor = .clear
        tableView.separatorStyle = .none
        tableView.estimatedRowHeight = 200
        tableView.rowHeight = UITableView.automaticDimension
        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("Offline Songs".localizableString())
        setPopBtn()
        configure()
        MP_AdMobManager.shared.layoutLibraryNativeAd(in: adContainerView, index: 1)
        MP_AdMobManager.shared.onLibraryNativeAdBlock = {
            [weak adContainerView] in
            guard let adContainerView = adContainerView else {return}
            MP_AdMobManager.shared.layoutLibraryNativeAd(in: adContainerView, index: 1)
        }
        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
            tableView.showMessage(offlines.count, title: "No Songs")
            numbersLabel.text = "\(offlines.count) \("Songs".localizableString())"
            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)
    }
    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)
        }
        navView.addSubview(searchBtn)
        searchBtn.snp.makeConstraints { make in
            make.right.equalTo(rightBtn.snp.left).offset(-10*width)
            make.width.height.equalTo(24*width)
            make.centerY.equalTo(rightBtn)
        }
        navView.addSubview(searchShowView)
        searchShowView.snp.makeConstraints { make in
            make.height.equalTo(40*width)
            make.left.equalTo(popBtn.snp.right).offset(5*width)
            make.right.equalTo(rightBtn)
            make.centerY.equalTo(searchBtn)
        }
        searchShowView.alpha = 0
        searchShowView.isHidden = true
        searchShowView.isUserInteractionEnabled = false
        view.addSubview(adContainerView)
        adContainerView.snp.makeConstraints { make in
            make.left.right.equalToSuperview()
            make.top.equalTo(navView.snp.bottom)
            make.height.equalTo(0)
        }
        view.addSubview(numbersLabel)
        numbersLabel.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(18*width)
            make.top.equalTo(adContainerView.snp.bottom).offset(32*width)
        }
        view.addSubview(tableView)
        tableView.snp.makeConstraints { make in
            make.top.equalTo(numbersLabel.snp.bottom).offset(18*width)
            make.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()
        }
    }
}
//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, 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)
    }
}