//
//  KMQucikToolsView.swift
//  PDF Reader Pro
//
//  Created by lizhe on 2023/10/27.
//

import Cocoa

typealias KMQucikToolsViewDidSelect = (_ view: KMQucikToolsView, _ item: KMQucikToolsModel) -> Void
typealias KMQucikToolsViewPageChange = (_ view: KMQucikToolsView) -> Void

class KMQucikToolsView: KMBaseXibView {
    @IBOutlet weak var collectionView: NSCollectionView!
    
    var addAction: KMQucikToolCollectionViewItemAddAction?
    var removeAction: KMQucikToolCollectionViewItemRemoveAction?
    
    var didSelect: KMQucikToolsViewDidSelect?
    var pageChange: KMQucikToolsViewPageChange?
    
    var data: [KMQucikToolsModel] = []
    var type: KMHomeQucikToolsShowType = .expand {
        didSet {
            self.collectionView.reloadData()
        }
    }
    
    override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)

        // Drawing code here.
    }
    
    override func setup() {
        //设置代理
        let layout = NSCollectionViewFlowLayout()
        layout.scrollDirection = .horizontal
        layout.minimumLineSpacing = 10
        layout.minimumInteritemSpacing = 10
        // 设置布局到 NSCollectionView
        self.collectionView.collectionViewLayout = layout
        
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
        self.collectionView.isSelectable = true
        self.collectionView.register(KMQucikToolCollectionViewItem.self, forItemWithIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMQucikToolCollectionViewItem"))
        
        NotificationCenter.default.addObserver(self, selector: #selector(scrollViewDidScroll(notification:)), name: NSScrollView.didLiveScrollNotification, object: collectionView.enclosingScrollView)
        
    }
    
    override func reloadData() {
        self.data.removeAll()
        
        for type in KMQucikToolsModel.showType() {
            let model = KMQucikToolsModel.init(type: type)

            self.data.append(model)
        }
        
        self.collectionView.reloadData()
    }
}

//Notification
extension KMQucikToolsView  {
    @objc func scrollViewDidScroll(notification: Notification) {
        guard let callBack = pageChange else { return }
        callBack(self)
    }
}

extension KMQucikToolsView: NSCollectionViewDelegate {
    //当item被选中
    public func collectionView(_ collectionView: NSCollectionView, didSelectItemsAt indexPaths: Set<IndexPath>) {
        
    }
    
    
}

extension KMQucikToolsView: NSCollectionViewDataSource {
    public func numberOfSections(in collectionView: NSCollectionView) -> Int {
        return 1
    }
    
    public 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: "KMQucikToolCollectionViewItem"), for: indexPath) as! KMQucikToolCollectionViewItem
        if self.data.count > indexPath.item {
            view.model = self.data[indexPath.item]
        }
        
        view.type = type
        view.addAction = { [weak self] view, item in
            KMBatchQuickActionManager.defaultManager.actionType = .add
            self?.addAction?(view, item)
        }
        
        view.removeAction = { [weak self] view, item in
            KMBatchQuickActionManager.defaultManager.actionType = .add
            self?.removeAction?(view, item)
        }
        
        view.downAction = { [unowned self] view, item in
            if view.model?.type == .Watermark ||
                view.model?.type == .Background ||
                view.model?.type == .BatesCode ||
                view.model?.type == .HeaderAndFooter ||
                view.model?.type == .Security {
                 
            } else {
                self.didSelect?(self, item)
            }
        }
        
        return view
    }
}

extension KMQucikToolsView: NSCollectionViewDelegateFlowLayout {
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> NSSize {
        if type == .collapse {
            return NSSize(width: 172, height: 48)
        } else if type == .expand {
            return NSSize(width: 260, height: 96)
        } else {
            return NSSize(width: 260, height: 96)
        }
    }
    
    public func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, insetForSectionAt section: Int) -> NSEdgeInsets {
        return NSEdgeInsets(top: 10, left: 0, bottom: 10, right: 10)
    }
}

//Collection Page
extension KMQucikToolsView {
    func pageCount() -> Int {
        var width =  260.0
        var count = ceilf(Float(self.data.count) * 0.5)
        if type == .collapse {
            width = 170
        } else if type == .expand {
            width = 260
        } else {
            width = 260
        }
        width = Double(count) * (width + 10)
        
        return Int(ceilf(Float(width / self.collectionView.visibleRect.size.width)))
    }
    
    func currentPage() -> Int {
        return Int(ceilf(Float(self.collectionView.visibleRect.origin.x / self.collectionView.visibleRect.size.width))) + 1
    }
    
    func nextPage() {
        let currentPage = self.currentPage()
        let pageCount = self.pageCount()
        var point: NSPoint = .zero
        
        if currentPage < pageCount {
            point = CGPoint(x: Int(self.collectionView.visibleRect.size.width) * currentPage, y: 0)
        } else {
            point = CGPoint(x: 0, y: 0)
        }
        
        self.collectionView.scroll(point)
        guard let callBack = pageChange else { return }
        callBack(self)
    }
    
    func previousPage() {
        let currentPage = self.currentPage()
        let pageCount = self.pageCount()
        var point: NSPoint = .zero
        if currentPage > 1 {
            point = CGPoint(x: Int(self.collectionView.visibleRect.size.width) * (currentPage - 2), y: 0)
        } else {
            point = CGPoint(x: Int(self.collectionView.visibleRect.size.width) * (pageCount), y: 0)
        }
        
        self.collectionView.scroll(point)
        guard let callBack = pageChange else { return }
        callBack(self)
    }
}