//
//  KMMainViewController+Action.swift
//  PDF Reader Pro
//
//  Created by wanjun on 2022/12/15.
//

import Foundation

import KMComponentLibrary

extension KMNThumbnailBaseViewController {
    
    private func insertImageFilePath(imagePath:String,pageDex:Int)->Bool{
        var isSuccessFul:Bool = false
        if (FileManager.default.fileExists(atPath: imagePath)) {
            if let image = NSImage(contentsOfFile: imagePath) {
                isSuccessFul = showDocument?.km_insertPage(image.size, withImage: imagePath, at: UInt(pageDex)) == true
            }
        }
        return isSuccessFul
    }
    
    private func undoDeleteIndexPaths(deleteIndexPath: Set<IndexPath>) {
        var changeIndex:IndexSet = []
        var deletePages:[CPDFPage] = []
        
        let pageIndexs = KMNTools.indexpathsToIndexs(indexpaths: deleteIndexPath)
        for i in pageIndexs {
            if let page = showDocument?.page(at: UInt(i)) {
                deletePages.append(page)
                changeIndex.insert(i)
            }
        }
        
        showDocument?.removePage(at: pageIndexs)
        refreshDatas()
        collectionView.reloadData()
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoInsertPages(insertPages: deletePages, indexs: pageIndexs)
        }
    }
    
    private func undoInsertPages(insertPages:[CPDFPage],indexs: IndexSet) {
        var indexpaths = Set<IndexPath>()
        var count: Int = 0
        for index in indexs {
            guard let pageCount = showDocument?.pageCount, index <= pageCount, count < insertPages.count, index != -1 else {
                KMPrint("index invalid. index: \(index)")
                break
            }
            
            showDocument?.insertPageObject(insertPages[count], at: UInt(index))
            indexpaths.insert(IndexPath(item: index, section: 0))
            count += 1
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.scrollToItems(at: indexpaths, scrollPosition: .centeredVertically)
        collectionView.selectionIndexPaths = indexpaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.deletePages(indexpaths: indexpaths)
        }
    }
    
    private func undoReplacePages(of targetIndexpaths: Set<IndexPath>, with documents: [CPDFDocument],insertIndexSet:IndexSet,orgPages:[CPDFPage],orgIndexs: IndexSet) {
        
        showDocument?.removePage(at: insertIndexSet)
        
        var indexpaths = Set<IndexPath>()
        var count: Int = 0
        for index in orgIndexs {
            guard let pageCount = showDocument?.pageCount, index <= pageCount, count < orgPages.count, index != -1 else {
                KMPrint("index invalid. index: \(index)")
                break
            }
            
            showDocument?.insertPageObject(orgPages[count], at: UInt(index))
            indexpaths.insert(IndexPath(item: index, section: 0))
            count += 1
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.scrollToItems(at: indexpaths, scrollPosition: .centeredVertically)
        collectionView.selectionIndexPaths = indexpaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.replacePages(of: targetIndexpaths, with: documents)
        }
    }
    
    private func undoMovePages(movePages:[CPDFPage],destinationDex:Int,orgPages:[CPDFPage],orgPageDexs:[Int]) {
        
        for (i, page) in orgPages.enumerated() {
            let dragIndex = page.pageIndex()
            let index:UInt = UInt(orgPageDexs[i])
            showDocument?.movePage(at: dragIndex, withPageAt: index)
        }
        
        var indexpaths = Set<IndexPath>()
        for (_, page) in movePages.enumerated() {
            let index = page.pageIndex()
            indexpaths.insert(IndexPath(item: Int(index), section: 0))
        }

        refreshDatas()
        collectionView.reloadData()
        collectionView.scrollToItems(at: indexpaths, scrollPosition: .centeredVertically)
        collectionView.selectionIndexPaths = indexpaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.movePages(dragPages: movePages, destinationDex: destinationDex)
        }
    }
    
    func insertFileComplete(newSelectIndexs: Set<IndexPath>){
        refreshDatas()
        collectionView.reloadData()
        
        collectionView.selectionIndexPaths = newSelectIndexs
        
        if newSelectIndexs.isEmpty { return }
        
        let firstIndexPath = newSelectIndexs.first
        collectionView.scrollToItems(at: [firstIndexPath ?? IndexPath(item: 0, section: 0)], scrollPosition: .top)
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoDeleteIndexPaths(deleteIndexPath: newSelectIndexs)
        }
    }
    
    public func insertFormPages(insertPages: [CPDFPage],pageDex:Int) {
        let pageIndexDex: Int = pageDex
        var indexpaths = Set<IndexPath>()
        
        let page = insertPages.first
        if page?.document == showDocument {
            for (i, page) in insertPages.enumerated() {
                let isSuccessFul:Bool = showDocument?.insertPageObject(page, at: UInt(pageIndexDex+i)) == true
                if(isSuccessFul == true) {
                    indexpaths.insert(IndexPath(item: pageIndexDex+i, section: 0))
                }
            }
        } else {
            if let pasteDocument = page?.document {
                var indexs: IndexSet = IndexSet()
                for (i, page) in insertPages.enumerated() {
                    indexs.insert(Int(pasteDocument.index(for: page)))
                    indexpaths.insert(IndexPath(item: pageIndexDex+i, section: 0))
                }
                
                let isSuccessFul:Bool = showDocument?.importPages(indexs, from: pasteDocument, at: UInt(pageIndexDex)) == true
                if(isSuccessFul == false){
                    return
                }
            }
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.scrollToItems(at: indexpaths, scrollPosition: .centeredVertically)
        collectionView.selectionIndexPaths = indexpaths
                
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoDeleteIndexPaths(deleteIndexPath: indexpaths)
        }
    }
    
    public func insertBlankSize(pageSize: CGSize,pageDex:Int) {
        var indexpaths = Set<IndexPath>()
        let isSuccessFul = showDocument?.insertBlankPage(pageSize: pageSize, at: pageDex)
        if(isSuccessFul == true) {
            indexpaths.insert(IndexPath(item: pageDex, section: 0))
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.scrollToItems(at: indexpaths, scrollPosition: .centeredVertically)
        collectionView.selectionIndexPaths = indexpaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoDeleteIndexPaths(deleteIndexPath: indexpaths)
        }
    }
    
    public func rotatePages(indexPaths: Set<IndexPath>, rotateAngle: Int) {
        var tIndexPaths: Set<IndexPath> = []
        tIndexPaths = indexPaths
        for targetIndexPath in indexPaths {
            if let page = showDocument?.page(at: UInt(targetIndexPath.item)) {
                var pageRotate = page.rotation + rotateAngle
                if(pageRotate  == -90) {
                    pageRotate = 270
                } else if (pageRotate == 450) {
                    pageRotate = 90
                    
                }
                page.rotation = pageRotate
                
                let cellView = collectionView.item(at: targetIndexPath) as? KMNThumbnailCollectionViewItem
                if(cellView != nil) {
                    cellView?.thumbnailMode.removeCacheImage()
                }
            }
        }
        
        collectionView.reloadItems(at: tIndexPaths) // Ensure correct type conversion
        collectionView.selectionIndexPaths = tIndexPaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.rotatePages(indexPaths: tIndexPaths, rotateAngle: -rotateAngle)
        }
    }
    
    public func reversePages(indexs: IndexSet) {
        if let doc = showDocument {
            var theIdxs = indexs
            var res = false
            for _ in 0 ..< indexs.count {
                guard let first = theIdxs.first else {
                    break
                }
                guard let last = theIdxs.last else {
                    break
                }
                if first == last {
                    break
                }
                res = doc.exchangePage(at: UInt(first), withPageAt: UInt(last))
                if res {
                    theIdxs.remove(first)
                    theIdxs.remove(last)
                    
                }
            }
            if res {
                refreshDatas()
                let selected_indexpaths = KMNTools.indexsToIndexpaths(indexs: indexs)
                
                collectionView.reloadItems(at: selected_indexpaths)
                
                collectionView.selectionIndexPaths = selected_indexpaths
                
                currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
                    self?.reversePages(indexs: indexs)
                }
            }
        }
    }
    
    public func replacePages(of targetIndexpaths: Set<IndexPath>, with documents: [CPDFDocument]) {
        if (targetIndexpaths.count == 0 || documents.count == 0) {
            KMPrint("replace invalid.")
            return
        }
        var index = targetIndexpaths.sorted().first!.item
        
        var deletePages:[CPDFPage] = []
        
        let indexSet = KMNTools.indexpathsToIndexs(indexpaths: targetIndexpaths)
        for i in indexSet {
            if let page = showDocument?.page(at: UInt(i)) {
                deletePages.append(page)
            }
        }
        showDocument?.removePage(at: indexSet)
        
        var tIndexPaths: Set<IndexPath> = []
        for document in documents {
            for i in 0 ..< document.pageCount {
                if let page = document.page(at: i) {
                    showDocument?.insertPageObject(page, at: UInt(index))
                    tIndexPaths.insert(IndexPath(item: index, section: 0))
                    index += 1
                }
            }
            thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: document)
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.selectionIndexPaths = tIndexPaths
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoReplacePages(of: targetIndexpaths, with: documents, insertIndexSet: KMNTools.indexpathsToIndexs(indexpaths: tIndexPaths), orgPages: deletePages,orgIndexs: indexSet)
        }
    }
    
    public func deletePages(indexpaths:Set<IndexPath>) {
        var changeIndex:IndexSet = []
        var deletePages:[CPDFPage] = []
        
        let pageIndexs = KMNTools.indexpathsToIndexs(indexpaths: indexpaths)
        for i in pageIndexs {
            if let page = showDocument?.page(at: UInt(i)) {
                deletePages.append(page)
                changeIndex.insert(i)
            }
        }
        showDocument?.removePage(at: changeIndex)
        collectionView.selectionIndexPaths = []
        refreshDatas()
        collectionView.reloadData()

        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoInsertPages(insertPages: deletePages, indexs: pageIndexs)
        }
    }
    
    public func movePages(dragPages:[CPDFPage],destinationDex:Int) {
        guard !dragPages.isEmpty else { return }
        
        var destinationIndex = destinationDex
        let maxDragPageIndex = dragPages.last?.pageIndex() ?? 0
        let minDragPageIndex = dragPages.first?.pageIndex() ?? 0
        
        let rangeStart = min(Int(minDragPageIndex), destinationIndex)
        let rangeEnd = max(Int(maxDragPageIndex), destinationIndex)
    
        var changePages:[CPDFPage] = []
        var changePageIndexs:[Int] = []

        for index in (rangeStart...rangeEnd) {
            if let changePage = showDocument?.page(at: UInt(index)) {
                changePages.append(changePage)
                changePageIndexs.append(index)
            }
        }

        for dragPage in dragPages {
            let dragIndex = dragPage.pageIndex()
            if destinationIndex > dragIndex {
                destinationIndex -= 1
                showDocument?.movePage(at: dragIndex, withPageAt: UInt(destinationIndex))
            } else {
                showDocument?.movePage(at: dragIndex, withPageAt: UInt(destinationIndex))
            }
            destinationIndex += 1
        }
        
        var selectIndexPaths: Set<IndexPath> = []
        
        for dragPage in dragPages {
            let dragIndex = dragPage.pageIndex()
            selectIndexPaths.insert(IndexPath(item: Int(dragIndex), section: 0))
        }
        
        refreshDatas()
        collectionView.reloadData()
        collectionView.selectionIndexPaths = selectIndexPaths
        if selectIndexPaths.isEmpty { return }
        let firstIndexPath = selectIndexPaths.first
        collectionView.scrollToItems(at: [firstIndexPath ?? IndexPath(item: 0, section: 0)], scrollPosition: .top)
        
        currentUndoManager?.registerUndo(withTarget: self) { [weak self] targetType in
            self?.undoMovePages(movePages: dragPages, destinationDex: destinationDex, orgPages: changePages, orgPageDexs: changePageIndexs)
        }
    }
    
    public func insertFromFilePath(fileNames:[String],formDex:Int,indexDex:UInt,selectIndexs:Set<IndexPath>,completionBlock:@escaping (Set<IndexPath>)->Void)-> Void {
        let path = fileNames[formDex]
        var insertDex = indexDex
        var tSelectIndex = selectIndexs
        
        let pathExtension = URL(fileURLWithPath: path).pathExtension.lowercased()
        if pathExtension == "pdf", let pdf = CPDFDocument(url: URL(fileURLWithPath: path)) {
            if pdf.isLocked {
                self.view.window?.windowController?.showCheckPassword(url: pdf.documentURL, type: .owner) { success, resultPassword in
                    if (resultPassword.isEmpty == false) {
                        pdf.unlock(withPassword: resultPassword)
                        
                        for i in 0 ..< pdf.pageCount {
                            let insertPage = pdf.page(at: i)
                            self.showDocument?.insertPageObject(insertPage, at: insertDex)
                            tSelectIndex.insert(IndexPath(item: Int(insertDex), section:0))
                            insertDex += 1
                        }
                        
                        var tFormDex = formDex
                        tFormDex += 1
                        self.thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: pdf)
                        if(tFormDex < fileNames.count) {
                            return self.insertFromFilePath(fileNames: fileNames, formDex: tFormDex, indexDex: indexDex, selectIndexs: tSelectIndex,completionBlock: completionBlock)
                        } else {
                            self.insertFileComplete(newSelectIndexs: tSelectIndex)
                            return completionBlock(tSelectIndex)
                        }
                    }
                }
            } else {
                for i in 0 ..< pdf.pageCount {
                    let insertPage = pdf.page(at: i)
                    showDocument?.insertPageObject(insertPage ?? CPDFPage(), at: insertDex)
                    tSelectIndex.insert(IndexPath(item: Int(insertDex), section:0))
                    insertDex += 1
                }
                var tFormDex = formDex
                tFormDex += 1
                thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: pdf)
                if(tFormDex < fileNames.count) {
                    return insertFromFilePath(fileNames: fileNames, formDex: tFormDex, indexDex: indexDex, selectIndexs: tSelectIndex,completionBlock: completionBlock)
                } else {
                    insertFileComplete(newSelectIndexs: tSelectIndex)
                    return completionBlock(tSelectIndex)
                }
                
            }
        } else if supportDragFileTypes().contains(pathExtension) {
            if KMConvertPDFManager.supportImages().contains(pathExtension) {
                let isSueccessFul = insertImageFilePath(imagePath: path, pageDex: Int(indexDex))
                if(isSueccessFul) {
                    tSelectIndex.insert(IndexPath(item: Int(insertDex), section:0))
                    insertDex += 1
                }
                
                var tFormDex = formDex
                tFormDex += 1
                if(tFormDex < fileNames.count) {
                    return insertFromFilePath(fileNames: fileNames, formDex: tFormDex, indexDex: indexDex, selectIndexs: tSelectIndex,completionBlock: completionBlock)
                } else {
                    insertFileComplete(newSelectIndexs: tSelectIndex)
                    return completionBlock(tSelectIndex)
                }
                
            } else {
                KMNConvertTool.convertOffice(filePath: path) { convertPDFPath in
                    if (convertPDFPath != nil) {
                        let pathExtension = URL(fileURLWithPath: convertPDFPath!).pathExtension.lowercased()
                        if pathExtension == "pdf", let pdf = CPDFDocument(url: URL(fileURLWithPath: convertPDFPath!)) {
                            for i in 0 ..< pdf.pageCount {
                                let insertPage = pdf.page(at: i)
                                self.showDocument?.insertPageObject(insertPage, at: insertDex)
                                tSelectIndex.insert(IndexPath(item: Int(insertDex), section:0))
                                insertDex += 1
                            }
                            self.thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: pdf)
                            
                            var tFormDex = formDex
                            tFormDex += 1
                            if(tFormDex < fileNames.count) {
                                return self.insertFromFilePath(fileNames: fileNames, formDex: tFormDex, indexDex: indexDex, selectIndexs: tSelectIndex,completionBlock: completionBlock)
                            } else {
                                self.insertFileComplete(newSelectIndexs: tSelectIndex)
                                return completionBlock(tSelectIndex)
                            }
                            
                        }
                    }
                }
            }
        }
    }
    
    public func extractPages(indexpaths: Set<IndexPath>, oneDocumentPerPage: Bool, callback: @escaping KMResultBlock) {
        let pageIndexs = KMNTools.indexpathsToIndexs(indexpaths: indexpaths)
        let oneDocument = !oneDocumentPerPage
        let document = self.showDocument!
        /// 提取的页面
        var extractPages: Array<CPDFPage> = []
        for i in pageIndexs {
            guard let page = document.page(at: UInt(i)) else {
                continue
            }
            extractPages.append(page)
        }
        
        if (oneDocument) { /// 提取为一个文档
            var fileName = document.documentURL.deletingPathExtension().lastPathComponent
            fileName.append(" pages ")
            fileName.append(KMNTools.newParseSelectedIndexs(selectedIndex: pageIndexs.sorted()))
            fileName.append(".pdf")
            NSPanel.savePanel(self.view.window!, true) { panel in
                panel.nameFieldStringValue = fileName
            } completion: { response, url, isOpen in
                if (response != .OK) {
                    callback(.cancel)
                    return
                }
                
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
                    DispatchQueue.global().async {
                        var success = false
                        let pdf = CPDFDocument.init()
                        success = pdf!.extractAsOneDocument(withPages: extractPages, savePath: url!.path)
                        DispatchQueue.main.async {
                            if (success == false) {
                                callback(.failure)
                                return
                            }
                            
                            if (isOpen == false) {
                                NSWorkspace.shared.activateFileViewerSelecting([url!])
                            } else {
                                NSDocumentController.shared.km_safe_openDocument(withContentsOf: url!, display: true) { _, _, _ in
                                }
                            }
                            callback(.success, [url!])
                        }
                    }
                }
            }
        } else {
            let panel = NSOpenPanel()
            panel.canChooseFiles = false
            panel.canChooseDirectories = true
            panel.canCreateDirectories = true
            panel.allowsMultipleSelection = false
            panel.beginSheetModal(for: self.view.window!) {  response in
                if response != .OK {
                    callback(.cancel)
                    return
                }
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
                    let outputURL = panel.url
                    DispatchQueue.global().async {
                        let folderName = String((document.documentURL.lastPathComponent.split(separator: ".")[0])) + "_extract"
                        
                        var filePath = URL(fileURLWithPath: outputURL!.path).appendingPathComponent(folderName).path
                        var i = 1
                        let testFilePath = filePath
                        while FileManager.default.fileExists(atPath: filePath) {
                            filePath = testFilePath + "\(i)"
                            i += 1
                        }
                        
                        try? FileManager.default.createDirectory(atPath: filePath, withIntermediateDirectories: false, attributes: nil)
                        
                        var successArray: [URL]?
                        successArray = document.extractPerPageDocument(withPages: extractPages, folerPath: filePath)
                        
                        DispatchQueue.main.async {
                            if successArray!.count == 0 {
                                callback(.failure)
                                return
                            }
                            NSWorkspace.shared.activateFileViewerSelecting(successArray!)
                            callback(.success, successArray ?? NSURL())
                        }
                    }
                }
            }
        }
    }
    
    // MARK: - MenuItem
    @objc public func copyMenuItemAciton() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            let winC = KMPurchaseCompareWindowController.sharedInstance()
            winC?.showWindow(nil)
            return
        }
        KMNThumbnailManager.manager.copyPages = []
        
        let indexpaths = collectionView.selectionIndexPaths
        for indexpath in indexpaths.sorted() {
            guard let page = showDocument?.page(at: UInt(indexpath.item))?.copy() as? CPDFPage else {
                continue
            }
            
            KMNThumbnailManager.manager.copyDocument.append(showDocument ?? CPDFDocument())
            KMNThumbnailManager.manager.copyPages.append(page)
        }
    }
    
    @objc public func pastMenuItemAciton(menuitemProperty:ComponentMenuitemProperty) {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            let winC = KMPurchaseCompareWindowController.sharedInstance()
            winC?.showWindow(nil)
            return
        }
        
        var pastIndex = 1
        let point = menuitemProperty.representedObject as? NSPoint
        
        if(point != nil) {
            let pointInCollectionView = collectionView.convert(point!, from: nil)
            
            let visibleItems = collectionView.visibleItems()
            let mouseX = pointInCollectionView.x
            let mouseY = pointInCollectionView.y
            
            // 获取当前行的所有 cell
            let currentRowItems = visibleItems.filter { item in
                if let indexPath = collectionView.indexPath(for: item),
                   let cellAttributes = collectionView.layoutAttributesForItem(at: indexPath) {
                    return cellAttributes.frame.minY <= mouseY && cellAttributes.frame.maxY >= mouseY
                }
                return false
            }
            if(mouseX < 24) { //点击区域在最左边
                // 找到最近右边的 cell
                let rightMostCell = currentRowItems.compactMap { collectionView.indexPath(for: $0) }
                    .filter { indexPath in
                        let cellRect = collectionView.layoutAttributesForItem(at: indexPath)?.frame
                        return cellRect?.minX ?? 0 > mouseX // 只选择右侧的 cell
                    }
                    .sorted { ($0.item < $1.item) } // 按 item 的顺序排列
                    .first // 选择第一个，即最右边的 cell
                pastIndex = (rightMostCell?.item ?? (Int(showDocument?.pageCount ?? 1)))
            } else {
                // 找到最近右边的 cell
                let leftMostCell = currentRowItems.compactMap { collectionView.indexPath(for: $0) }
                    .filter { indexPath in
                        let cellRect = collectionView.layoutAttributesForItem(at: indexPath)?.frame
                        return cellRect?.maxX ?? 0 < mouseX // 只选择左侧的 cell
                    }
                    .sorted { $0.item > $1.item } // 按 item 的逆序排列，以选择最近的左侧 cell
                    .first // 选择第一个，即最近的左边的 cell
                
                pastIndex = (leftMostCell?.item ?? (Int(showDocument?.pageCount ?? 1)) - 1) + 1
            }
        } else {
            let selectedIndexPaths = collectionView.selectionIndexPaths
            if(selectedIndexPaths.count > 0) {
                let maxmumIndexPath = selectedIndexPaths.max(by: { $0 < $1 })
                pastIndex = ((maxmumIndexPath?.item ?? 0) + 1)
            } else {
                pastIndex = Int(showDocument?.pageCount ?? 0)
            }
        }
        let copyPages = KMNThumbnailManager.manager.copyPages
        
        insertFormPages(insertPages: copyPages, pageDex: pastIndex)
    }
    
    @objc public func cutMenuItemAciton() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            let winC = KMPurchaseCompareWindowController.sharedInstance()
            winC?.showWindow(nil)
            return
        }
        
        let indexpaths = collectionView.selectionIndexPaths
        for indexpath in indexpaths.sorted() {
            guard let page = showDocument?.page(at: UInt(indexpath.item))?.copy() as? CPDFPage else {
                continue
            }
            
            KMNThumbnailManager.manager.copyDocument.append(showDocument ?? CPDFDocument())
            KMNThumbnailManager.manager.copyPages.append(page)
        }
        
        deletePages(indexpaths: indexpaths)
    }
    
    @objc public func deleteMenuItemAciton() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            let winC = KMPurchaseCompareWindowController.sharedInstance()
            winC?.showWindow(nil)
            return
        }
        let indexpaths = collectionView.selectionIndexPaths
        deletePages(indexpaths: indexpaths)
    }
    
    @objc func sharePageItemAction(menuItem:NSMenuItem) {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            let winC = KMPurchaseCompareWindowController.sharedInstance()
            winC?.showWindow(nil)
            return
        }
        let indexpaths = collectionView.selectionIndexPaths
        
        let doucument = showDocument
        let filename : String = doucument?.documentURL.lastPathComponent ?? ""
        let folderPath = (NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(filename)) ?? ""
        
        try? FileManager.default.removeItem(atPath: folderPath)
        
        let pdfdocument = CPDFDocument()
        let ret = pdfdocument?.importPages(KMNTools.indexpathsToIndexs(indexpaths: indexpaths), from: doucument, at: 0) ?? false
        let url = URL(fileURLWithPath: folderPath)
        if ret {
            let success = pdfdocument?.write(toFile: folderPath)
            let represent = menuItem.representedObject as? NSSharingService
            represent?.perform(withItems: [url])
        }
    }
    
    @objc public func displayPageSizeAction() {
        let indexpaths = collectionView.selectionIndexPaths
        isShowPageSize = !isShowPageSize
        collectionView.selectionIndexPaths = indexpaths
    }
    
    private func insertFilePath(filePath:String,pdfPassword:String?) {
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        let insertPDF = KMNPDFInsertPDFWindowController(showDocument, filePath: filePath, password: pdfPassword, selectionIndexPaths: selectedIndexPaths)
        insertPDF.pdfCallback = { [weak self] fileAttribute, insertIdx in
            let doc = fileAttribute.pdfDocument
            
            var insertPages: [CPDFPage] = []
            
            for number in fileAttribute.fetchSelectPages() {
                if let page = doc?.page(at: UInt(number-1)) {
                    insertPages.append(page)
                }
            }
            self?.thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: doc)
            
            self?.insertFormPages(insertPages: insertPages, pageDex: insertIdx)
        }
        insertPDF.fileCallback = { [weak self] filePath, insertIdx in
            self?.insertFromFilePath(fileNames: [filePath], formDex: 0, indexDex: UInt(insertIdx), selectIndexs: [], completionBlock: { newSelectIndexs in
            })
        }
        
        insertPDF.own_beginSheetModal(for: self.view.window, completionHandler: nil)
    }
    
    // MARK: - public
    func updateThumnailItem(updateIndexPaths: Set<IndexPath>,isSelect:Bool) {
        
        for targetIndexPath in updateIndexPaths {
            let cellView = collectionView.item(at: targetIndexPath) as? KMNThumbnailCollectionViewItem
            if(cellView != nil) {
                cellView?.thumbnailMode.removeCacheImage()
            }
        }
        
        collectionView.reloadItems(at: updateIndexPaths)
        if(isSelect) {
            if updateIndexPaths.isEmpty { return }
            let firstIndexPath = updateIndexPaths.first
            collectionView.scrollToItems(at: [firstIndexPath ?? IndexPath(item: 0, section: 0)], scrollPosition: .top)
            
            collectionView.selectionIndexPaths = updateIndexPaths
        }
    }
    
    func updateAllThumnailItems() {
        KMNThumbnailManager.clearCacheFilePath(filePath: showDocument?.documentURL.path ?? "")
        
        collectionView.reloadData()
    }
    
    @objc public func insertFromPDFAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let openPanel = NSOpenPanel()
        openPanel.allowedFileTypes = supportDragFileTypes()
        openPanel.allowsMultipleSelection = false
        openPanel.beginSheetModal(for: NSWindow.currentWindow()) {[weak self] result in
            if result == NSApplication.ModalResponse.OK {
                let fileURL = openPanel.url
                if(fileURL?.pathExtension == "pdf") {
                    let pdfDoc = CPDFDocument(url: fileURL)
                    if let data = pdfDoc?.isLocked, data {
                        DispatchQueue.main.asyncAfter(deadline: .now()+0.5) {
                            self?.view.window?.windowController?.showCheckPassword(url: fileURL ?? NSURL.fileURL(withPath: ""), type: .owner) { result, pwd in
                                if (pwd.isEmpty == false) {
                                    self?.insertFilePath(filePath: fileURL?.path ?? "", pdfPassword: pwd)
                                }
                            }
                        }
                    } else {
                        self?.insertFilePath(filePath: fileURL?.path ?? "", pdfPassword: nil)
                    }
                } else {
                    self?.insertFilePath(filePath: fileURL?.path ?? "", pdfPassword: nil)
                }
            }
        }
    }
    
    @objc public func insertFromBlankAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        let insertPDF = KMNPDFInsertBlankWindowController(self.showDocument, selectionIndexPaths: selectedIndexPaths)
        insertPDF.callback = { [weak self] pageSize, insertIdx in
            self?.insertBlankSize(pageSize: pageSize, pageDex: insertIdx)
        }
        insertPDF.own_beginSheetModal(for: self.view.window, completionHandler: nil)
    }
    
    public func insertFromClipboardAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        let selectedIndexPaths = collectionView.selectionIndexPaths
        var maxmumIndex = 1
        if(selectedIndexPaths.count > 0) {
            let maxmumIndexPath = selectedIndexPaths.max(by: { $0 < $1 })
            maxmumIndex = (maxmumIndexPath?.item ?? 0) + 1
        }
        
        var error: NSError?
        guard let document: CPDFDocument = KMNConvertTool.openDocumentWithImageFromPasteboard(NSPasteboard.general, error: &error) else {
            return
        }
        if let page: CPDFPage = (document.page(at: 0)) {
            insertFormPages(insertPages: [page], pageDex: maxmumIndex)
        }
        
        self.thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: document)
        let ips: Set<IndexPath> = [IndexPath(item: maxmumIndex, section: 0)]
        
        refreshDatas()
        collectionView.selectionIndexPaths = ips
        collectionView.scrollToItems(at: ips, scrollPosition: .centeredVertically)
    }
    
    public func insertFromScannerAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        let maxmumIndexPath = selectedIndexPaths.max(by: { $0 < $1 })
        
        let vc = KMDeviceBrowserWindowController.shared
        vc.type = .scanner
        vc.importScannerFileCallback = { [weak self] (url: NSURL) -> Void in
            if let imag = NSImage(contentsOfFile: url.path! ) {
                let index = (maxmumIndexPath?.item ?? 0) + 1
                _ = self?.showDocument?.km_insertPage(imag.size, withImage: url.path! , at:UInt(index))
                
                self?.refreshDatas()
                
                let ips: Set<IndexPath> = [IndexPath(item: index, section: 0)]
                
                self?.collectionView.selectionIndexPaths = ips
                self?.collectionView.scrollToItems(at: ips, scrollPosition: .centeredVertically)
            }
        }
        vc.showWindow(nil)
        vc.window?.center()
    }
    
    
    public func canUndo()->Bool {
        return true
    }
    
    public func undoPDFAction() {
        currentUndoManager?.undo()
    }
    
    public func canRodo()->Bool {
        return true
    }
    
    public func redoPDFAction() {
        currentUndoManager?.redo()
    }
    
    @objc public func extractPDFAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        if selectedIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        
        let extractPDF = KMNExtractPDFWindowController(self.showDocument, selectionIndexPaths: collectionView.selectionIndexPaths)
        extractPDF.callback = { [weak self] oneDocumentPerPage, isDeletePage in
            extractPDF.own_closeEndSheet()
            if let _ = self?.showDocument {
                self?.extractPages(indexpaths: selectedIndexPaths, oneDocumentPerPage: oneDocumentPerPage, callback: { [weak self] result, params in
                    if (result == .failure || result == .cancel) {
                        return
                    }
                    if (isDeletePage) {
                        self?.deletePages(indexpaths: selectedIndexPaths)
                    }
                })
            }
        }
        extractPDF.own_beginSheetModal(for: self.view.window, completionHandler: nil)
    }
    
    @objc public func replacePDFAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        if selectedIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        
        self.km_open_file_multi {  [unowned self] index, params in
            if (self.fetchProgressBlockParamsIsPasswordFile(params: params)) { // 加密文档进度回调
                return
            }
            
            let tFileUrl = self.fetchProgressBlockParamsForFileUrl(params: params)
            let pdfExtensions = KMNConvertTool.supportPDFFileType()
            if let exn = tFileUrl?.pathExtension, pdfExtensions.contains(exn)  {
                if (tFileUrl!.path.isPDFValid() == false) {
                    let alert = NSAlert()
                    alert.alertStyle = .critical
                    alert.messageText = KMLocalizedString("An error occurred while opening this document. The file is damaged and could not be repaired.")
                    alert.runModal()
                }
            }
        } completionBlock: { [unowned self] documents in
            self.replacePages(of: selectedIndexPaths, with: documents)
        }
    }
    
    public func splitPDFAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        if collectionView.selectionIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.bounds.origin.x + self.view.bounds.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        
        let splitPDF = KMNSplitPDFWindowController(self.showDocument,selectionIndexPaths: selectedIndexPaths)
        splitPDF.own_beginSheetModal(for: self.view.window, completionHandler: nil)
    }
    
    public func reversePDFAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        if selectedIndexPaths.count < 2 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("No page selected. Please select at least two pages to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        reversePages(indexs:KMNTools.indexpathsToIndexs(indexpaths: selectedIndexPaths))
    }
    
    @objc public func rotatePageLeftAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        if collectionView.selectionIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        rotatePages(indexPaths: collectionView.selectionIndexPaths, rotateAngle: -90)
    }
    
    @objc public func rotatePageRightAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        if collectionView.selectionIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        }
        rotatePages(indexPaths: collectionView.selectionIndexPaths, rotateAngle: 90)
    }
    
    public func deletePageAction() {
        if IAPProductsManager.default().isAvailableAllFunction() == false {
            KMPurchaseCompareWindowController.sharedInstance()?.showWindow(nil)
            return
        }
        
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        if selectedIndexPaths.count < 1 {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Please select one or more pages first to organize."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
        } else if selectedIndexPaths.count == (showDocument?.pageCount ?? 0) {
            _ = KMNCustomAlertView.alertView(message: KMLocalizedString("Can not delete all pages."), type: .info, fromView: self.view, point:CGPointMake(self.view.frame.origin.x + self.view.frame.size.width/2, self.view.bounds.size.height - 30))
            return
            
        }
        
        deletePages(indexpaths: selectedIndexPaths)
    }
    
    // MARK: - private
    private func fetchProgressBlockParamsIsPasswordFile(params: Any...) -> Bool {
        if (params.count <= 2) {
            return false
        }
        return true
    }
    
    private func fetchProgressBlockParamsForFileUrl(params: Any...) -> URL? {
        if (params.count < 2) {
            return nil
        }
        return params[1] as? URL
    }
    
    private func km_open_file_multi(type: KMPasswordInputWindowType = .open, progressBlock: ((_ index: Int, _ params: Any...)->Void)? = nil, completionBlock:@escaping ([CPDFDocument])->Void) {
        NSPanel.km_open_multi_success(self.view.window!) { panel in
            var array: [String] = []
            for fileType in KMConvertPDFManager.supportFileType() {
                array.append(fileType)
            }
            panel.allowedFileTypes = KMNConvertTool.pdfExtensions + array
        } completion: { urls in
            self.km_add_file_multi(fileUrls: urls, type: type, progressBlock: progressBlock, completionBlock: completionBlock)
        }
    }
    
    private func km_add_file_multi(fileUrls: [URL] ,type: KMPasswordInputWindowType = .open, progressBlock: ((_ index: Int, _ params: Any...)->Void)? = nil, completionBlock:@escaping ([CPDFDocument])->Void) {
        var pdfUrls: [URL] = []
        var imageUrls: [URL] = []
        var officeUrls: [URL] = []
        for url in fileUrls {
            let type = url.pathExtension.lowercased()
            if (KMNConvertTool.isPDFType(type)) {
                pdfUrls.append(url)
            }
            if (KMNConvertTool.isImageType(type)) {
                imageUrls.append(url)
            }
            if (KMNConvertTool.isOfficeType(type)) {
                officeUrls.append(url)
            }
        }
        
        if (officeUrls.count == 0) {
            self.km_add_pdf_multi(fileUrls: pdfUrls, type: type, progressBlock: progressBlock) { documents in
                var index = documents.count
                var _documents: [CPDFDocument] = []
                for imageUrl in imageUrls {
                    index += 1
                    let document = CPDFDocument()
                    let image = NSImage(contentsOfFile: imageUrl.path)
                    let _ = document?.km_insertPage(image?.size ?? .zero, withImage: imageUrl.path, at: 0)
                    _documents.append(document!)
                    
                    if let _callback = progressBlock { // 回调进度
                        _callback(index, document as Any, imageUrl)
                    }
                }
                
                completionBlock(documents + _documents)
            }
            return
        }
        
        self.km_add_office_multi(fileUrls: officeUrls) { [unowned self] fileUrlStrings in
            var officeDocuments: [CPDFDocument] = []
            var index = 0
            for fileUrlString in fileUrlStrings {
                index += 1
                let document = CPDFDocument(url: URL(fileURLWithPath: fileUrlString))
                officeDocuments.append(document!)
                
                if let _callback = progressBlock { // 回调进度
                    _callback(index, document as Any, URL(fileURLWithPath: fileUrlString))
                }
            }
            
            self.km_add_pdf_multi(fileUrls: pdfUrls) { documents in
                var index = documents.count + officeDocuments.count
                var _documents: [CPDFDocument] = []
                for imageUrl in imageUrls {
                    index += 1
                    let document = CPDFDocument()
                    let image = NSImage(contentsOfFile: imageUrl.path)
                  let _ = document?.km_insertPage(image!.size, withImage: imageUrl.path, at: 0)
                    _documents.append(document!)
                    
                    if let _callback = progressBlock { // 回调进度
                        _callback(index, document as Any, imageUrl)
                    }
                }
                
                completionBlock(officeDocuments + documents + _documents)
            }
        }
    }
    
    private func km_add_pdf_multi(fileUrls: [URL] ,type: KMPasswordInputWindowType = .open, progressBlock: ((_ index: Int, _ params: Any...)->Void)? = nil, completionBlock:@escaping ([CPDFDocument])->Void) {
        var results: [CPDFDocument] = []
        
        self.lockedFiles.removeAll()
        var index = 0
        for url in fileUrls {
            let document = CPDFDocument(url: url)
            if (document!.isLocked) {
                self.lockedFiles.append(url)
                continue
            }
            
            if let _document = document {
                results.append(_document)
            }
            
            index += 1
            if let _callback = progressBlock {
                _callback(index, ((document != nil) ? document : CPDFDocument()) as Any, url)
            }
        }
        
        if (self.lockedFiles.count == 0) {
            completionBlock(results)
            return
        }
        
        self._openPasswordWindow_loop(fileUrl: self.lockedFiles.first!, type: type) { params in
            index += 1
            if (params.count <= 2) { // 参数错误
                if let _callback = progressBlock { // 回调进度
                    _callback(index)
                }
                return
            }
            
            let fileUrl     = params[0] as! URL
            let result      = params[1] as! KMPasswordInputWindowResult
            let password    = params[2] as? String
            if (result == .cancel) {
                if let _callback = progressBlock { // 回调进度
                    _callback(index, CPDFDocument() as Any, fileUrl, result)
                }
                return
            }
            
            let document = CPDFDocument(url: fileUrl)
            if let _password = password { // 将文档进行解密
                document?.unlock(withPassword: _password)
            }
            if let _callback = progressBlock { // 回调进度
                _callback(index, document as Any, fileUrl, result, password as Any)
            }
            // 将文档加入返回数据
            if let _document = document {
                results.append(_document)
            }
        } completionBlock: {
            completionBlock(results)
        }
    }
    
    private func km_add_office_multi(fileUrls: [URL], completionBlock:@escaping ([String])->Void) -> Void {
        var fileUrlStrings: [String] = []
        
        let dispatchGroup = Dispatch.DispatchGroup()
        for (index, fileUrl) in fileUrls.enumerated() {
            let filePath = fileUrl.path
            let folderPath = "convertToPDF_\(index).pdf"
            let savePath: String? = folderPath.kUrlToPDFFolderPath() as String
            if (savePath == nil) {
                continue
            }
            
            dispatchGroup.enter()
            KMConvertPDFManager.convertFile(filePath, savePath: savePath!) { success, errorDic in
                if errorDic != nil || !success || !FileManager.default.fileExists(atPath: savePath!) {
                    dispatchGroup.leave()
                    
                    if FileManager.default.fileExists(atPath: savePath!) {
                        try?FileManager.default.removeItem(atPath: savePath!)
                    }
                    let alert = NSAlert.init()
                    alert.alertStyle = .critical
                    var infoString = ""
                    if errorDic != nil {
                        for key in (errorDic! as Dictionary).keys {
                            infoString = infoString.appendingFormat("%@\n", errorDic![key] as! CVarArg)
                        }
                    }
                    alert.informativeText = KMLocalizedString("Please install Microsoft Office to create PDFs from Office files")
                    alert.messageText = KMLocalizedString("Failed to Create PDF", comment: "")
                    alert.addButton(withTitle: KMLocalizedString("OK"))
                    alert.runModal()
                    return
                }
                
                if !savePath!.isPDFValid() {
                    dispatchGroup.leave()
                    
                    let alert = NSAlert()
                    alert.alertStyle = .critical
                    alert.messageText = KMLocalizedString("An error occurred while opening this document. The file is damaged and could not be repaired.")
                    alert.runModal()
                    return
                }
                
                fileUrlStrings.append(savePath!)
                dispatchGroup.leave()
            }
        }
        
        dispatchGroup.notify(queue: DispatchQueue.main) {
            completionBlock(fileUrlStrings)
        }
    }
    
    fileprivate func _openPasswordWindow_loop(fileUrl: URL, type: KMPasswordInputWindowType, progressBlock: ((_ params: Any...)->Void)?, completionBlock:@escaping ()->Void) {
        KMPasswordInputWindow.openWindow(window: self.view.window!, type: type, url: fileUrl) { [weak self] result, password in
            // 将结果返回
            if let _callback = progressBlock {
                _callback(fileUrl, result, password as Any)
            }
            
            // 进行下一个
            self?.lockedFiles.removeFirst()
            if let _fileUrl = self?.lockedFiles.first {
                self?._openPasswordWindow_loop(fileUrl: _fileUrl, type: type, progressBlock: progressBlock, completionBlock: completionBlock)
            } else {
                completionBlock()
            }
        }
    }
}