BFRecordScreenKit/BFRecordScreenKit/Classes/RecordScreen/View/BFImageCoverViewCell.swift

//
//  BFImageCoverViewCell.swift
//  BFRecordScreenKit
//
//  Created by SanW on 2021/12/15.
//  Copyright © 2021 BytesFlow. All rights reserved.
//

import BFUIKit
import GPUImage
import UIKit

open class BFImageCoverViewCell: UICollectionViewCell {
    var btnClickHandle: ((_ sender: UIButton, _ recordItem: BFRecordItemModel?) -> Void)?

    public lazy var playBtn: UIButton = {
        let btn = UIButton(type: .custom)
        btn.setImage(imageInRecordScreenKit(by: "preview_play"), for: .normal)
        let vv = UIView(frame: CGRect(x: 0, y: 0, width: 1, height: 1))
        btn.setImage(vv.graphicsGetImage(), for: .selected)
        btn.addTarget(self, action: #selector(btnClick(sender:)), for: .touchUpInside)
        return btn
    }()

    lazy var playView: GPUImageView = {
        let playView = GPUImageView(frame: bounds)
        return playView
    }()

    lazy var filter: GPUImageFilter = {
        let filter = GPUImageFilter()
        return filter
    }()

    lazy var picture: GPUImagePicture = {
        let picture = GPUImagePicture()
        return picture
    }()

    @objc public class func gpuImageViewCell(collectionView: UICollectionView, indexPath: IndexPath) -> BFImageCoverViewCell {
        let cell: BFImageCoverViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: BFImageCoverViewCell.self), for: indexPath) as! BFImageCoverViewCell
        return cell
    }

    override public func prepareForReuse() {
        super.prepareForReuse()
        filter.removeTarget(playView)
        picture.removeTarget(filter)
        playBtn.isSelected = false
    }

    override public init(frame: CGRect) {
        super.init(frame: frame)
        contentView.addSubview(playView)
        contentView.addSubview(playBtn)
    }

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

    public var recordItem: BFRecordItemModel? {
        didSet {
            addData()
            addLayout()
        }
    }

    public func addData() {
        guard let coverImg = recordItem?.coverImg else {
            filter.removeTarget(playView)
            picture.removeTarget(filter)
            return
        }
        picture = GPUImagePicture(image: coverImg)
        picture.addTarget(filter)
        filter.addTarget(playView)
        picture.processImage()
        // 暂停状态--如果是图片素材同时没有录音文件时不显示播放按钮
        playBtn.isSelected = (recordItem?.mediaType == .IMAGE && (recordItem?.voiceStickers.count ?? 0) <= 0)
    }

    public func addLayout() {
        playView.frame = contentView.bounds
        playBtn.frame = CGRect(x: 0, y: cDevice_iPhoneNavBarAndStatusBarHei, width: cScreenWidth, height: cScreenHeigth - cDevice_iPhoneNavBarAndStatusBarHei * 2)
        playBtn.center = contentView.center
    }

    @objc func btnClick(sender: UIButton) {
        sender.isSelected = !sender.isSelected
        if btnClickHandle != nil {
            btnClickHandle!(sender, recordItem)
        }
    }
}