//
//  KMAdvertisementTableView.swift
//  KMAdvertisement
//
//  Created by lizhe on 2022/11/28.
//

#if os(OSX)
    import AppKit
#elseif os(iOS)
    import UIKit
#endif

typealias KMAdvertisementTableViewDidSelect = (_ view: KMAdvertisementTableView, _ item: KMAdvertisementItemInfo) -> Void
@objcMembers open class KMAdvertisementTableView: NSView {

    @IBOutlet var contentView: NSView!
    
    @IBOutlet weak var collectionView: NSCollectionView!

    
    var didSelect: KMAdvertisementTableViewDidSelect?
    /**
      @abstract 外部传入数据
      @param inputData 文件路劲
      */
    open var inputData: KMAdvertisementContent? {
        didSet {
            self.reloadData()
        }
    }

    //内部使用数据
    fileprivate var data: [KMAdvertisementItem] = []

    open override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)

        // Drawing code here.
    }
    
    convenience init (data: [KMAdvertisementItem], superView: NSView) {
        self.init(frame: superView.bounds)
        superView.addSubview(self)
        self.autoresizingMask = [.height , .width]
//        self.translatesAutoresizingMaskIntoConstraints = false
//        NSLayoutConstraint.activate([
//            self.topAnchor.constraint(equalTo: topAnchor),
//            self.leftAnchor.constraint(equalTo: leftAnchor),
//            self.rightAnchor.constraint(equalTo: rightAnchor),
//            self.bottomAnchor.constraint(equalTo: bottomAnchor)])
//        self.updateConstraintsForSubtreeIfNeeded()
    }
    
    public override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
        initContentView()
        setup()
    }
    
    // MARK: 初始化
    public required init?(coder decoder: NSCoder) {
        super.init(coder: decoder)
        initContentView()
        setup()
    }

    private func initContentView() {
        //绑定xib
        let resource = NSNib(nibNamed: String(describing: self.classForCoder.self),
                             bundle: Bundle(for: self.classForCoder.self))!
        resource.instantiate(withOwner: self, topLevelObjects: nil)
        addSubview(contentView)
        contentView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            contentView.topAnchor.constraint(equalTo: topAnchor),
            contentView.leftAnchor.constraint(equalTo: leftAnchor),
            contentView.rightAnchor.constraint(equalTo: rightAnchor),
            contentView.bottomAnchor.constraint(equalTo: bottomAnchor)])
        contentView.updateConstraintsForSubtreeIfNeeded()
    }
    
    func setup() {
        //设置代理
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
        //是否可选中
        self.collectionView.isSelectable = true
        //注册cell
        self.collectionView.register(KMAdvertisementCollectionViewItem.self, forItemWithIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMAdvertisementCollectionViewItem"))
        
//        self.backgroundColor(KMAppearance.Layout.l0Color())
    }
    
    func reloadData() {
        guard let inputData = inputData else { return }
        
        self.data.removeAll()
        if inputData.recommondContentPDFPro != nil && inputData.recommondContentPDFPro?.content?.count != 0 {
            self.data.append(inputData.recommondContentPDFPro!)
        }
        
        if inputData.recommondContentOther != nil && inputData.recommondContentOther?.content?.count != 0 {
            self.data.append(inputData.recommondContentOther!)
        }
        
        self.collectionView.reloadData()
    }
}

extension KMAdvertisementTableView: NSCollectionViewDelegate {
    //当item被选中
    public func collectionView(_ collectionView: NSCollectionView, didSelectItemsAt indexPaths: Set<IndexPath>) {
        print("点击")
        let view = collectionView.item(at: indexPaths.first!) as! KMAdvertisementCollectionViewItem
        
        self.collectionView.deselectItems(at: indexPaths)
        
        let content = view.model
        
        guard let callBack = didSelect else { return }
        
        content?.index = indexPaths.first!.item
        callBack(self, content!)
    }
    
   //当item取消选中
    public func collectionView(_ collectionView: NSCollectionView, didDeselectItemsAt indexPaths: Set<IndexPath>) {
        _ = collectionView.item(at: indexPaths.first!) as! KMAdvertisementCollectionViewItem
    }
}

extension KMAdvertisementTableView: NSCollectionViewDataSource {
    public func numberOfSections(in collectionView: NSCollectionView) -> Int {
        return self.data.count
    }
    
    public func collectionView(_ collectionView: NSCollectionView, numberOfItemsInSection section: Int) -> Int {
        let model: KMAdvertisementItem = (self.data[section])
        return model.content!.count
    }
    
    //返回对应的item自定义个体
    public func collectionView(_ collectionView: NSCollectionView, itemForRepresentedObjectAt indexPath: IndexPath) -> NSCollectionViewItem {
        let view = collectionView.makeItem(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMAdvertisementCollectionViewItem"), for: indexPath) as! KMAdvertisementCollectionViewItem
        
        let model = self.data[indexPath.section]
        view.model = model.content![indexPath.item]
        return view
    }
    
    public func collectionView(_ collectionView: NSCollectionView, viewForSupplementaryElementOfKind kind: NSCollectionView.SupplementaryElementKind, at indexPath: IndexPath) -> NSView {
        var nibName: String?
        var view = NSView()
        if kind == NSCollectionView.elementKindSectionHeader {
            nibName = "KMAdvertisementCollectionHeadView"
            
            view = collectionView.makeSupplementaryView(ofKind: kind, withIdentifier: NSUserInterfaceItemIdentifier(rawValue: nibName!), for: indexPath)
            if let view = view as? KMAdvertisementCollectionHeadView {
                let model = self.data[indexPath.section]
                view.model = model
            }
        } else if kind == NSCollectionView.elementKindSectionFooter {
            nibName = "KMAdvertisementCollectionHeadView"
            
            view = collectionView.makeSupplementaryView(ofKind: kind, withIdentifier: NSUserInterfaceItemIdentifier(rawValue: nibName!), for: indexPath)
        }
        return view
    }
}

extension KMAdvertisementTableView: NSCollectionViewDelegateFlowLayout {
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> NSSize {
//        return NSSize(width: self.contentView.bounds.width, height: 32)
        return NSSize(width: 238, height: 32)
    }
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> NSSize {
        return NSSize(width: 0, height: 30)
    }
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, referenceSizeForFooterInSection section: Int) -> NSSize {
        return NSSize(width: 0, height: 20)
    }
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
        return 4
    }
}