BFFramework/BFFramework/Classes/Stuckpoint/View/PQSpeedSettingView.swift

//
//  PQSpeedSettingView.swift
//  BFFramework
//
//  Created by ak on 2021/8/2.
//  功能：设置快慢速 跳越卡点 的倍速 VIEW

import Foundation
class PQSpeedSettingView: UIView {
    // 速度列表
    lazy var titleCollectionView: UICollectionView = {
        let flowLayout = UICollectionViewFlowLayout()
        flowLayout.sectionInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
        flowLayout.minimumLineSpacing = 0
        flowLayout.minimumInteritemSpacing = 0
        flowLayout.scrollDirection = .horizontal

        let collectionView = UICollectionView(frame: .zero, collectionViewLayout: flowLayout)

        collectionView.showsVerticalScrollIndicator = false
        collectionView.showsHorizontalScrollIndicator = false
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.backgroundColor = .clear
        collectionView.register(PQSpeedTitleCell.self, forCellWithReuseIdentifier: String(describing: PQSpeedTitleCell.self))
        if #available(iOS 11.0, *) {
            collectionView.contentInsetAdjustmentBehavior = .never
        }
        // 延迟scrollView上子视图的响应，所以当直接拖动UISlider时，如果此时touch时间在150ms以内，UIScrollView会认为是拖动自己，从而拦截了event，导致UISlider接收不到滑动的event
        collectionView.delaysContentTouches = false
        return collectionView
    }()

    // 保存数据
    var datas: Array<PQSpeedTitleModel> = Array()
    var lastSelectModel: PQSpeedTitleModel?
    // view 初化的类型 1, 快慢速度卡点  2，跳跃卡点
    var viewType: Int = 0 {
        didSet {
            titleCollectionView.snp.remakeConstraints { make in
                make.right.equalToSuperview()
                make.width.equalToSuperview()
                make.height.equalTo(viewType == 1 ? 44 : 30)
                make.top.equalToSuperview()
            }
            datas.removeAll()
            if viewType == 1 {
                let tempTitle =
                    ["6.0x\n1.2x",
                     "5.0x\n1.0x",
                     "3.0x\n0.5x",
                     "2.4x\n0.4x",
                     "1.0x\n0.3x",
                     "1.0x\n0.2x",
                     "自定义\n快慢速"]
                let tempMaxSpeed = [6, 5, 4, 3, 2.4, 1.0, 0.0]
                let tempMinSpeed = [1.2, 1.0, 0.5, 0.4, 0.3, 0.2, 0.0]
                for (index, str) in tempTitle.enumerated() {
                    let model = PQSpeedTitleModel()
                    model.title = str
                    model.maxSpeed = Float(tempMaxSpeed[index])
                    model.minSpeed = Float(tempMinSpeed[index])
                    datas.append(model)
                }

            } else {
                let tempTitle =
                    ["跳跃1x",
                     "2x",
                     "3x",
                     "4x",
                     "5x",
                     "自定义"]
                let tempMaxSpeed = [1, 2, 3, 4, 5, 0]
                for (index, str) in tempTitle.enumerated() {
                    let model = PQSpeedTitleModel()
                    model.title = str
                    model.maxSpeed = Float(tempMaxSpeed[index])
                    datas.append(model)
                }
 
            }
     
            titleCollectionView.reloadData()
        }
    }

    // 点击回调 maxSpeed,minSpeed 同时为0 说明点击的是自定义速度
    public var selectSpeedCallBack: ((_ maxSpeed: Float, _ minSpeed: Float) -> Void)?

    override init(frame: CGRect) {
        super.init(frame: frame)
        addSubview(titleCollectionView)
  
    }

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

extension PQSpeedSettingView: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UIScrollViewDelegate {
    func collectionView(_: UICollectionView, numberOfItemsInSection _: Int) -> Int {
        return datas.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: PQSpeedTitleCell.self), for: indexPath) as! PQSpeedTitleCell

        cell.titleModel = datas[indexPath.row]
        return cell
    }

    func collectionView(_: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        BFLog(message: "选择了 \(String(describing: datas[indexPath.row]))")
        lastSelectModel?.isSelected = false
        datas[indexPath.row].isSelected = true
        titleCollectionView.reloadData()

        lastSelectModel = datas[indexPath.row]

        if selectSpeedCallBack != nil {
            BFLog(message: "选择的速度为 max: \(lastSelectModel?.maxSpeed ?? 0.0) min: \(lastSelectModel?.minSpeed ?? 0.0)")
            selectSpeedCallBack!(lastSelectModel?.maxSpeed ?? 0.0, lastSelectModel?.minSpeed ?? 0.0)
        }
    }

    func collectionView(_ collectionView: UICollectionView, layout _: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        // 20  是 cell label 上下边距总和
        if viewType == 1 {
            if indexPath.row == datas.count - 1 {
                return CGSize(width: 65, height: 44)
            }
            return CGSize(width: 44 + 10, height: 24 + 20)
        } else {
            if indexPath.row == 0 || indexPath.row == datas.count - 1 {
                return CGSize(width: 60 + 10, height: 30)
            }
            return CGSize(width: 30 + 10, height: 30)
        }
    }
}

class PQSpeedTitleModel: NSObject {
    // UI 上显示的文字
    var title: String = ""
    // 是否已经选择
    var isSelected: Bool = false
 
    // 最大、最小速度
    var maxSpeed: Float = 0.0
    var minSpeed: Float = 0.0
    public override init() {
        super.init()
    }
}

class PQSpeedTitleCell: UICollectionViewCell {
    lazy var titleLab: UILabel = {
        let titleLab = UILabel()
        titleLab.font = UIFont.systemFont(ofSize: 13, weight: .regular)
        titleLab.textColor = UIColor.hexColor(hexadecimal: "#959595")
        titleLab.numberOfLines = 0
        titleLab.lineBreakMode = .byCharWrapping
        titleLab.isUserInteractionEnabled = true
        titleLab.textAlignment = .center
        titleLab.addCorner(corner: 5)

        return titleLab
    }()

    override init(frame: CGRect) {
        super.init(frame: frame)
        contentView.addSubview(titleLab)
        titleLab.snp.remakeConstraints { make in
            make.height.equalToSuperview()
            make.width.equalToSuperview().offset(-10)
            make.left.equalToSuperview()
            make.top.equalToSuperview()
        }

    }

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

    var titleModel: PQSpeedTitleModel? {
        didSet {
            titleLab.text = titleModel?.title

            titleLab.snp.remakeConstraints { make in
                make.height.equalToSuperview()
                make.width.equalToSuperview().offset(-10)
                make.left.equalToSuperview()
                make.top.equalToSuperview()
            }

            if titleModel?.isSelected ?? false {
                titleLab.backgroundColor = UIColor(red: 0.24, green: 0.758, blue: 0.758, alpha: 0.15)
                titleLab.textColor = UIColor.hexColor(hexadecimal: PQBFConfig.shared.styleColor.rawValue)

            } else {
                titleLab.backgroundColor = UIColor.hexColor(hexadecimal: "#F9F9F9")
                titleLab.textColor = UIColor.hexColor(hexadecimal: "#959595")
            }
        }
    }
}