//
//  KMBatchCollectionView.swift
//  PDF Master
//
//  Created by lizhe on 2023/1/12.
//

import Cocoa

class KMBatchCollectionView: KMBaseXibView {
    @IBOutlet weak var collectionView: NSCollectionView!
    
    var delegate: KMBatchCollectionViewDelegate?
    var inputType: KMBatchCollectionViewType? {
        didSet {
            self.didSelectBatchType(type: inputType!)
        }
    }

//    /**
//      @abstract 外部传入数据
//      @param inputData 文件路劲
//      */
//    var inputData: [URL]! {
//        didSet {
//            self.tableView.inputData = inputData
//        }
//    }
    var presenter: KMBatchCollectionViewPrensenter = KMBatchCollectionViewPrensenter()
    var data:[KMBatchCollectionViewModel] = []
    
    override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)

        // Drawing code here.
    }
    
    deinit {
        self.delegate = nil
    }
    
    override func setup() {
        super.setup()
        
        self.contentView.wantsLayer = true
        self.contentView.layer?.backgroundColor = NSColor.km_init(hex: "#F7F8FA").cgColor
        
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
        self.collectionView.isSelectable = true
        self.collectionView.allowsMultipleSelection = false
        //注册cell
        self.collectionView.register(KMBatchCollectionViewItem.self, forItemWithIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMBatchCollectionViewItem"))
        
        self.presenter.initPresenter(view: self)
    }
    
    override func reloadData() {
        super.reloadData()
    }
}

extension KMBatchCollectionView: KMBatchCollectionViewPrensenterDelegate {
    func showData(presenter: KMBatchCollectionViewPrensenter, data: Array<KMBatchCollectionViewModel>) {
        self.data = data
        self.collectionView.reloadData()
    }
}

extension KMBatchCollectionView: NSCollectionViewDelegate {
    //当item被选中
    public func collectionView(_ collectionView: NSCollectionView, didSelectItemsAt indexPaths: Set<IndexPath>) {
        for item in self.data {
            item.isSelect = false
        }
        
        let view = collectionView.item(at: indexPaths.first!) as! KMBatchCollectionViewItem
        view.model.isSelect = true
        self.collectionView.reloadData()
        
        if self.delegate != nil {
            self.delegate?.didSelect(index: indexPaths.first!, data: view.model)
        }
    }
    
//   //当item取消选中
//    public func collectionView(_ collectionView: NSCollectionView, didDeselectItemsAt indexPaths: Set<IndexPath>) {
//        let view = collectionView.item(at: indexPaths.first!) as! KMBatchCollectionViewItem
//        view.model.isSelect = false
//        self.collectionView.reloadData()
//    }
    
    func didSelectBatchType(type: KMBatchCollectionViewType) {
        for item in self.data {
            if item.type == type {
                item.isSelect = true
            } else {
                item.isSelect = false
            }
        }
        self.collectionView.reloadData()
    }
}

extension KMBatchCollectionView: NSCollectionViewDataSource {
    func collectionView(_ collectionView: NSCollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.data.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: "KMBatchCollectionViewItem"), for: indexPath) as! KMBatchCollectionViewItem
        
        view.model = self.data[indexPath.item]
        return view
    }
}

extension KMBatchCollectionView: NSCollectionViewDelegateFlowLayout {
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> NSSize {
        return NSSize(width: self.contentView.bounds.width, height: 32)
    }
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
        return 16
    }
}

//MARK: KMBatchCollectionViewDelegate
protocol KMBatchCollectionViewDelegate: NSObject {
    func didSelect(index: IndexPath, data: KMBatchCollectionViewModel)
}