AIEmoji/AIEmoji/Business/General/TSBigIconBrowseVC/TSBigIconBrowseVC.swift

//
//  TSBigIconBrowseVC.swift
//  AIEmoji
//
//  Created by 100Years on 2025/2/20.
//

private let cellId = "TSBigIconBrowseCell"
class TSBigIconBrowseVC: TSBottomAlertVC {

    
    var dataModelArray = [TSActionInfoModel]()
    var currentImage:UIImage?{
        let cell = collectionView.cellForItem(at: IndexPath(item: currentIndex, section: 0)) as? TSBigIconBrowseCell
        var image = cell?.netWorkImageView.image
        image = image?.pngImage
        return image
    }

    var currentModel:TSActionInfoModel?{
        if let model = dataModelArray.safeObj(At: currentIndex){
            return model
        }
        return nil
    }
    
    
    var currentIndex:Int = 0 {
        didSet{
            reloadUI()
        }
    }
    
    lazy var collectionView: UICollectionView = {

        let layout = UICollectionViewFlowLayout()
        layout.scrollDirection = .vertical
        
        let collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.showsVerticalScrollIndicator = false
        collectionView.showsHorizontalScrollIndicator = false
        collectionView.backgroundColor = .clear
        if #available(iOS 11.0, *) {
            collectionView.contentInsetAdjustmentBehavior = .never
        }
        collectionView.register(TSBigIconBrowseCell.self, forCellWithReuseIdentifier: cellId)
        collectionView.isPagingEnabled = true
        collectionView.isHidden = true
        if let flowLayout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
            flowLayout.minimumInteritemSpacing = 0
            flowLayout.minimumLineSpacing = 0
            flowLayout.scrollDirection = .horizontal
            flowLayout.itemSize = CGSize(width: k_ScreenWidth, height: 490*kDesignScale)
        }
        return collectionView
    }()
    
    
    lazy var leftBtn: UIButton = {
        let leftBtn = UIButton.createButton(image: UIImage(named: "page_left")){ [weak self]  in
            guard let self = self else { return }
            self.collectionView.scrollToItem(at:  IndexPath(item: self.currentIndex-1, section: 0), at: .left, animated: true)
        }
        return leftBtn
    }()
    
    lazy var rightBtn: UIButton = {
        let rightBtn = UIButton.createButton(image: UIImage(named: "page_right")){ [weak self]  in
            guard let self = self else { return }
            self.collectionView.scrollToItem(at: IndexPath(item: self.currentIndex+1, section: 0), at: .left, animated: true)
        }
        return rightBtn
    }()
        
    override func createView() {
        super.createView()
        submitBtn.isHidden = true
        bottomView.frame = CGRectMake(0, 92, k_ScreenWidth, k_ScreenHeight-92)
        cancelBtn.setTitle("Copy Text".localized, for: .normal)
        
        bottomView.addSubview(collectionView)
        collectionView.snp.makeConstraints { make in
            make.leading.trailing.equalTo(0)
            make.top.equalTo(36)
            make.bottom.equalTo(confirmBtn.snp.top).offset(-30)
        }
        
        bottomView.addSubview(leftBtn)
        leftBtn.snp.makeConstraints { make in
            make.leading.equalTo(17)
            make.top.equalTo(244)
            make.width.height.equalTo(40)
        }
        
        bottomView.addSubview(rightBtn)
        rightBtn.snp.makeConstraints { make in
            make.trailing.equalTo(-18)
            make.top.equalTo(244)
            make.width.height.equalTo(40)
        }
        
        kDelayMainShort {
            self.collectionView.isHidden = false
            self.collectionView.reloadData()
            self.collectionView.setContentOffset(CGPoint(x: CGFloat(self.currentIndex) * self.collectionView.frame.size.width, y: 0), animated: false)

            if let flowLayout = self.collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
                flowLayout.itemSize = self.collectionView.bounds.size
            }
        }
    }
    
    
    @objc override func clickCancelBtn(){
        
        if JudgeVip(){
            return
        }
  
        if let model = currentModel{
            //拷贝文字到截切板
            UIPasteboard.general.string = model.request.prompt
            kSaveSuccesswShared.show(atView: self.view,text: "Copyed Successfully".localized,showViewBtn:false)
        }else{
            kShowToastDataMissing()
        }
    }
    
    @objc override func clickConfirmBtn(){
        
        if JudgeVip(){
            return
        }
        
        if let image = currentImage{
            PhotoManagerShared.saveImageToAlbum(image) { success, error in
                if success {
                    kSaveSuccesswShared.show(atView: self.view)
                }else{
                    debugPrint(error)
                }
            }
        }else{
            kShowToastDataMissing()
        }
    }
    
    
    func JudgeVip() -> Bool {
        return kJudgeVip(externalBool: currentModel?.response.vip ?? false , vc: self, closePageBlock: nil)
    }
}


extension TSBigIconBrowseVC {
    
    func reloadUI() {
        //判断前后是否还有,以此来确定左右翻页按钮
        var isHiddenLeft = false
        var isHiddenRight = false
        if dataModelArray.count == 1{
            isHiddenLeft = true
            isHiddenRight = true
        }else if currentIndex == 0 {
            isHiddenLeft = true
        }else if currentIndex+1 >= dataModelArray.count {
            isHiddenRight = true
        }
        
        leftBtn.isHidden = isHiddenLeft
        rightBtn.isHidden = isHiddenRight
    }
}

//MARK: UICollectionViewDataSource
extension TSBigIconBrowseVC:UICollectionViewDataSource,UICollectionViewDelegate {
    
    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        resetIndexWithOffset(scrollView)
    }

    func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
        resetIndexWithOffset(scrollView)
    }

    private func resetIndexWithOffset(_ scrollView: UIScrollView) {
        let item = Int((scrollView.contentOffset.x / scrollView.bounds.width).rounded())
        currentIndex = item
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return dataModelArray.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath) as! TSBigIconBrowseCell
        if let model = dataModelArray.safeObj(At: indexPath.item){
            cell.netWorkImageView.setAsyncImage(urlString: model.response.resultUrl,placeholder: kPlaceholderImage,contentMode: .scaleAspectFill)
            cell.vipImageView.isHidden = !model.response.vip
            
            if model.request.promptSort.count > 0 {
                cell.textLabel.text = model.request.promptSort
            }else{
                cell.textLabel.text = model.request.prompt
            }

        }
        return cell
    }
    
}