//
//  BRVideoDetailViewController.swift
//  BeeReel
//
//  Created by 长沙鸿瑶 on 2025/6/30.
//

import UIKit

class BRVideoDetailViewController: BRPlayerListViewController {
    
    
    override var contentSize: CGSize {
        return .init(width: UIScreen.width, height: UIScreen.height)
    }
    
    override var CellClass: BRPlayerListCell.Type {
        return BRDetailPlayerCell.self
    }
    
    var shortPlayId: String?
    var activityId: String?
    
    private var detailArr: [BRVideoDetailModel] = []
    
    ///是否展示推荐
    private lazy var isAllowShowRecommand = false
    private var recommandTimer: Timer?
    
    ///上一次上报播放时长的节点
    private var lastUploadTime: TimeInterval = 0
    
    //MARK:  UI属性
    private lazy var backButton: UIButton = {
        let button = UIButton(type: .custom)
        button.setImage(UIImage(named: "nav_back_icon_01"), for: .normal)
        button.addTarget(self, action: #selector(handleBackButton), for: .touchUpInside)
        return button
    }()
    
    ///弹窗视图
    private weak var popUpView: UIView?

    override func viewDidLoad() {
        super.viewDidLoad()
        self.delegate = self
        self.dataSource = self
        self.fd_interactivePopDisabled = true
        
        self.requestDetailData()
        self.viewModel.asyncGetRecommandDataArr()
        
        br_setupUI()
    }
    

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationController?.setNavigationBarHidden(true, animated: true)
    }
    
    override var previousVideoUrl: String? {
        let index = self.viewModel.currentIndexPath.row - 1
        guard index > 0 else { return nil }
        let model = self.detailArr[self.viewModel.currentIndexPath.section]
        return model.episodeList?[index].video_url
    }
    
    override var nextVideoUrl: String? {
        let index = self.viewModel.currentIndexPath.row + 1
        let model = self.detailArr[self.viewModel.currentIndexPath.section]
        guard index < (model.episodeList?.count ?? 0) else { return nil }
        return model.episodeList?[index].video_url
    }
    
    override func play() {
        let videoInfo = self.viewModel.currentPlayer?.videoInfo
        guard videoInfo?.is_lock == true else {
            super.play()
            BRVideoAPI.requestAddPlayHistory(videoId: self.viewModel.currentPlayer?.videoInfo?.short_play_video_id, shortPlayId: self.viewModel.currentPlayer?.videoInfo?.short_play_id)
            return
        }
        
        
        self.pause()
        
        let myCoins = BRLoginManager.manager.userInfo?.totalCoin ?? 0
        let coins = videoInfo?.coins ?? 0
        if myCoins < coins, self.viewModel.currentPlayer?.hasLastEpisodeUnlocked != true {
            self.viewModel.openRechargeView()
        }
    }
    
    @objc private func handleBackButton() {
        
        if !self.viewModel.recommandList.isEmpty, isAllowShowRecommand {
            self.pause()
            let view = BRVideoDetailRecommendView()
            view.videoList = self.viewModel.recommandList
            view.didDismissBlock = { [weak self] in
                self?.handleNavBack()
            }
            view.didSelectedVideo = { [weak self] model in
                guard let self = self else { return }
                self.shortPlayId = model.short_play_id
                self.requestDetailData()
            }
            view.present(in: nil)
        } else {
            self.handleNavBack()
        }
    }
}

extension BRVideoDetailViewController {
    
    private func br_setupUI() {
        view.addSubview(backButton)
        
        backButton.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(15)
            make.top.equalToSuperview().offset(UIScreen.statusBarHeight + 10)
        }
    }
}

extension BRVideoDetailViewController {
    
    @objc private func handleRecommandTimer() {
        self.isAllowShowRecommand = true
    }
}

//MARK: --------------   BRPlayerViewModelDelegate  --------------
//重写父类的代理
extension BRVideoDetailViewController {
    ///打开选集
    override func br_onEpisodeView(viewModel: BRPlayerViewModel) {
        let indexPath = self.viewModel.currentIndexPath
        let model = self.detailArr[indexPath.section]
        
        let view = BREpisodeSelectorView()
        view.shortModel = model.shortPlayInfo
        view.epList = model.episodeList ?? []
        view.index = viewModel.currentIndexPath.row
        view.didSelectedIndex = { [weak self] index in
            self?.scrollToItem(indexPath: IndexPath(row: index, section: indexPath.section), animated: false)
        }
        view.present(in: nil)
        
        self.popUpView = view
    }
    ///速率
    override func br_clickRateButton(viewModel: BRPlayerViewModel) {
        
        let view = BRRateSelectorView()
        view.didSelectedRate = { [weak self] model in
            guard let self = self else { return }
            self.viewModel.rateModel = model
        }
        view.show()
        
        self.popUpView = view
    }
    
    override func br_playProgressDidChange(viewModel: BRPlayerViewModel, time: TimeInterval) {
        if (time >= lastUploadTime + 5 || time < lastUploadTime) && time >= 5 {
            lastUploadTime = time
            self.viewModel.uploadPlayTime()
        }
    }
    
    override func br_needUpdateAllData(viewModel: BRPlayerViewModel, scrollTo indexPath: IndexPath?) {
        self.requestDetailData(indexPath: indexPath)
    }
    
}

//MARK: --------------   BRPlayerListViewControllerDataSource BRPlayerListViewControllerDelegate  --------------
extension BRVideoDetailViewController: BRPlayerListViewControllerDataSource, BRPlayerListViewControllerDelegate {
    
    func br_playerListViewController(_ viewController: BRPlayerListViewController, _ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        
        let model = self.detailArr[indexPath.section]
        
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! BRDetailPlayerCell
        cell.videoInfo = model.episodeList?[indexPath.row]
        cell.shortModel = model.shortPlayInfo
        
        let upRow = indexPath.row - 1
        if upRow >= 0, let videoInfo = model.episodeList?[upRow], videoInfo.is_lock == true {
            cell.hasLastEpisodeUnlocked = true
        } else {
            cell.hasLastEpisodeUnlocked = false
        }
        
        return cell
    }
    
    func br_playerListViewController(_ viewController: BRPlayerListViewController, _ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.detailArr[section].episodeList?.count ?? 0
    }
    
    func br_numberOfSections(in viewController: BRPlayerListViewController) -> Int {
        return self.detailArr.count
    }
    
    func br_shouldAutoScrollNextEpisode(_ viewController: BRPlayerListViewController) -> Bool {
        if self.popUpView == nil {
            return true
        } else {
            return false
        }
    }
    
    
}

extension BRVideoDetailViewController {
    
    private func requestDetailData(indexPath: IndexPath? = nil) {
        guard let shortPlayId = shortPlayId else { return }
        
        
        isAllowShowRecommand = false
        recommandTimer?.invalidate()
        recommandTimer = nil
        recommandTimer = Timer.scheduledTimer(timeInterval: 6, target: YYTextWeakProxy(target: self), selector: #selector(handleRecommandTimer), userInfo: nil, repeats: false)
        
        BRHUD.show(containerView: self.view)
        BRVideoAPI.requestVideoDetail(shortPlayId: shortPlayId, activityId: activityId) { [weak self] model in
            BRHUD.dismiss()
            
            guard let self = self else { return }
            guard let model = model else { return }
            self.detailArr.removeAll()
            self.detailArr.append(model)
            
            self.reloadData { [weak self] in
                guard let self = self else { return }
                self.play()
                var targetIndexPath = IndexPath(row: 0, section: 0)
                
                if let indexPath = indexPath, indexPath.row < (model.episodeList?.count ?? 0) {
                    targetIndexPath = indexPath
                    
                } else if let videoInfo = model.video_info {
                    var row: Int?
                    model.episodeList?.enumerated().forEach({
                        if $1.id == videoInfo.id {
                            row = $0
                        }
                    })
                    if let row = row {
                        targetIndexPath = .init(row: row, section: 0)
                    }
                }
                self.scrollToItem(indexPath: targetIndexPath, animated: false)
            }
             
        }
    }
    
}