BFFramework/BFFramework/Classes/Stuckpoint/View/PQEditPublicCoverImageView.swift

//
//  PQEditPublicCoverImageView.swift
//  BFFramework
//
//  Created by ak on 2021/7/22.
//  功能：选择封面

import Foundation

class PQEditPublicCoverImageView: UIView {
    
    //确认选择回调
    public var selectImageCallBack: ((_ image:  UIImage?) -> Void)?
    
    //从相册选择 BTN 点击回调 用于弹出照片选择界面
    public var selectPhotoBtnCallBack:(() -> Void)?
    //选择的封面图片
    var selectImage:UIImage?
    //最后选择的封面 btn 用于还原角标
    var lastSelectcoverImageBtn:UIButton?
    
    lazy var backView: UIView = {
        let backView = UIView()
        backView.addCorner(corner: 1.5)
        backView.backgroundColor = .white
        return backView
    }()

    lazy var closeView: UIView = {
        let closeView = UIView()
        closeView.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.8)
        return closeView
    }()

    // 确定按钮
    lazy var compliteBtn: UIButton = {
        let compliteBtn = UIButton(type: .custom)
        compliteBtn.frame = CGRect(x: 0, y: 0, width: 70, height: 70)
        compliteBtn.setImage(UIImage().BF_Image(named: "editCoverimageOk"), for: .normal)
        compliteBtn.backgroundColor = PQBFConfig.shared.styleBackGroundColor
        compliteBtn.adjustsImageWhenHighlighted = false
        compliteBtn.tag = 2
        compliteBtn.addTarget(self, action: #selector(btnClick(sender:)), for: .touchUpInside)
        return compliteBtn
    }()

    // 从相册选择
    lazy var selectPhotoBtn: UIButton = {
        let selectPhotoBtn = UIButton(type: .custom)
        selectPhotoBtn.frame = CGRect(x: 0, y: 0, width: 70, height: 70)
        selectPhotoBtn.setImage(UIImage().BF_Image(named: "editCoverimageSelect"), for: .normal)
        selectPhotoBtn.adjustsImageWhenHighlighted = false
        selectPhotoBtn.backgroundColor = PQBFConfig.shared.styleBackGroundColor
        selectPhotoBtn.tag = 1
        selectPhotoBtn.addTarget(self, action: #selector(btnClick(sender:)), for: .touchUpInside)
        return selectPhotoBtn
    }()

    override init(frame: CGRect) {
        super.init(frame: frame)
 
        closeView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(viewHidden)))
        backgroundColor = .clear

        addSubview(closeView)
        addSubview(backView)
        addSubview(compliteBtn)
        addSubview(selectPhotoBtn)
 
        // 9个封面
        for i in 0 ... 8 {
            let coverImageBtn = UIButton(type: .custom)
            var frame: CGRect = .zero
            frame.size.width = 108.0
            frame.size.height = 108.0
            // 按钮横向间隔10，左边距16
            frame.origin.x = CGFloat((i % 3) * (108 + 10) + 16)
            // 按钮竖向间隔10，左边距16
            frame.origin.y = floor(CGFloat(i / 3)) * (frame.size.height + 10) + 16
            coverImageBtn.frame = frame
            coverImageBtn.backgroundColor = UIColor.hexColor(hexadecimal: "#F6F6F6")
            coverImageBtn.tag = (i + 1) * 100
            coverImageBtn.adjustsImageWhenHighlighted = false
            coverImageBtn.addTarget(self, action: #selector(coverImageBtnClick(sender:)), for: .touchUpInside)
            coverImageBtn.contentMode = .scaleAspectFit
            //选中后的角标
            let iconView = UIImageView.init(frame: CGRect(x: 108.0 - 22.0 - 6, y: 6, width: 22, height: 22))
            iconView.image = UIImage().BF_Image(named: "editCoverimageSelected")
            iconView.tag = 1000
            iconView.isHidden = true
            coverImageBtn.addSubview(iconView)
            backView.addSubview(coverImageBtn)

        }

        backView.snp.makeConstraints { make in
            make.right.equalToSuperview()
            make.width.equalTo(cScreenWidth)
            make.height.equalTo(459 + cAKSafeAreaHeight)
            make.bottom.equalToSuperview()
        }

        closeView.snp.makeConstraints { make in
            make.right.equalToSuperview()
            make.width.equalTo(cScreenWidth)
            make.height.equalTo(cScreenHeigth - 459)
            make.top.equalToSuperview()
        }

        selectPhotoBtn.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(16)
            make.width.equalTo(164)
            make.height.equalTo(54)
            make.bottom.equalToSuperview().offset(-19 - cAKSafeAreaHeight)
        }

        compliteBtn.snp.makeConstraints { make in
            make.left.equalTo(selectPhotoBtn.snp_right).offset(14)
            make.width.equalTo(164)
            make.height.equalTo(54)
            make.top.equalTo(selectPhotoBtn.snp_top)
        }
    }

    required init?(coder _: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    @objc func viewHidden() {
        isHidden = true
        if(selectImageCallBack != nil){
            selectImageCallBack!(nil)
        }
    }
    
    func show(videoURL: URL ,duration:Float64) {
       isHidden = false
        
        PQVideoSnapshotUtil.videoSnapshot(videoURL: videoURL, duration: TimeInterval(duration), count: 9) { [weak self] images in
            DispatchQueue.main.async {
                for i in 0...(images?.count ?? 0) - 1{
                    
                    let btn = self?.backView.viewWithTag((i + 1) * 100) as? UIButton
                    btn?.setImage(images?[i], for: .normal)
                    btn?.imageView?.contentMode = .scaleAspectFill
                }
            }

        }
    }
    
    

    /// 按钮点击事件
    /// - Parameter sender: <#sender description#>
    /// - Returns: <#description#>
    @objc func btnClick(sender: UIButton?) {
        switch sender?.tag {
        case 1:
            BFLog(message: "选择图库")
            if(selectPhotoBtnCallBack != nil){
                selectPhotoBtnCallBack!()
            }
            
            break
        case 2:
            BFLog(message: "确认选择")
            if(selectImageCallBack != nil){
                selectImageCallBack!(selectImage)
            }
            isHidden = true
            break
        default:
            break
        }
    }

    // 封面选择
    @objc func coverImageBtnClick(sender: UIButton?) {
        //角标的显示
        lastSelectcoverImageBtn?.viewWithTag(1000)?.isHidden = true
        sender?.viewWithTag(1000)?.isHidden = false
        lastSelectcoverImageBtn = sender
        
        BFLog(message: "封面选择了\(String(describing: sender?.tag))")
        selectImage = sender?.currentImage
 
    }
}