//
//  AppDelegate+MenuAction.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2025/1/2.
//

import Foundation

//MARK: - NSMenuDelegate
extension AppDelegate: NSMenuDelegate, NSMenuItemValidation {
    
    func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        
        if self.isPDFReaderProMenuActions(sel: action) {
            return self.validatePDFReaderProMenuItem(menuItem)
            
        } else if self.isFileMenuActions(sel: action) {
            return self.validateFileMenuItem(menuItem)
            
        } else if self.isEditMenuActions(sel: action) {
            return self.validateEditMenuItem(menuItem)
            
        } else if self.isViewMenuActions(sel: action) {
            return self.validateViewMenuItem(menuItem)
            
        } else if self.isGoMenuActions(sel: action) {
            return self.validateGoMenuItem(menuItem)
            
        } else if self.isWindowMenuActions(sel: action) {
            return self.validateWindowMenuItem(menuItem)
            
        } else if self.isHelpMenuActions(sel: action) {
            return self.validateHelpMenuItem(menuItem)
            
        }
        
        //        if (action == #selector(sharePageItemAction)) {
        //            guard let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController else {
        //                return false
        //            }
        //
        //            let isHome = _windowC.browser?.activeTabContents()?.isHome ?? false
        //            return !isHome
        //        }
        //        if action == #selector(menuItemAction_closeDocument) {
        //            guard let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController else {
        //                if NSApp.mainWindow?.windowController != nil {
        //                    return true
        //                }
        //                return false
        //            }
        //            let isNewTab = _windowC.browser?.activeTabContents()?.isNewTab ?? false
        //            if isNewTab {
        //                return true
        //            }
        //        }
        return false
    }
    
    func updateLoginMenuItem() {
        
        let firstItem = NSApp.mainMenu?.item(at: 0)?.submenu
        if firstItem != nil {
            let item1 = firstItem?.item(withTag: 11)
            let item2 = firstItem?.item(withTag: 12)
            let item3 = firstItem?.item(withTag: 13)
            let item4 = firstItem?.item(withTag: 14)
            let item6 = firstItem?.item(withTag: kKMMainMenuAccountRefreshItemTag)
            
            item1?.isHidden = true
            item2?.isHidden = true
            item3?.isHidden = true
            item4?.isHidden = true
            item6?.isHidden = true
        }
    }
    
    @objc func clickOutline(menuItem: NSMenuItem) {
        KMPrint("更新菜单栏")
    }
    
    func menu(_ menu: NSMenu, update item: NSMenuItem, at index: Int, shouldCancel: Bool) -> Bool {
        return true
    }
    
    // MARK: - update Menu
    func initMainMenu() {
        // 处理菜单栏多语
        let mainMenu = NSApp.mainMenu
        if (mainMenu == nil) {
            return
        }
        for menu in mainMenu!.items {
            let subMenu = menu.submenu
            for item in subMenu!.items {
                item.title = NSLocalizedString(item.title, comment: "")
                let itemSubMenu = item.submenu
                if (itemSubMenu == nil) {
                    continue
                }
                
                for item in itemSubMenu!.items {
                    item.title = NSLocalizedString(item.title, comment: "")
                    
                    let itemSubMenu = item.submenu
                    if (itemSubMenu == nil) {
                        continue
                    }
                    
                    for item in itemSubMenu!.items {
                        item.title = NSLocalizedString(item.title, comment: "")
                    }
                }
            }
        }
        
        //        let PDFOfficeMenu = mainMenu?.item(at: 0)?.submenu
        //#if VERSION_DMG
        //        _ = PDFOfficeMenu?.insertItem(withTitle: NSLocalizedString("Check for Updates", comment: ""), action: #selector(checkForUpdates), target: self, at: 3)
        //        _ = PDFOfficeMenu?.insertItem(withTitle: NSLocalizedString("Enter License", comment: ""), action: #selector(enterLicense), target: self, at: 4)
        //         if VerificationManager.default().needUpgradeLicense {
        //            _ = PDFOfficeMenu?.insertItem(withTitle: NSLocalizedString("PDF to Office Pack", comment: ""), action: #selector(pdftoOfficeMenuItemAction), target: self, at: 5)
        //        }
        //
        //        let accountRefreshItem = PDFOfficeMenu?.insertItem(withTitle: NSLocalizedString("Account Refresh", comment: ""), action: #selector(accountRefreshAction), target: self, at: 8)
        //        accountRefreshItem?.tag = kKMMainMenuAccountRefreshItemTag
        //#endif
        //#if !VERSION_DMG
        //        _ = PDFOfficeMenu?.insertItem(withTitle: NSLocalizedString("Restore Previous Purchase", comment: ""), action: #selector(restoreSubscriptions), target: self, at: 1)
        //#endif
        //        if let items = PDFOfficeMenu?.items {
        //            for menu in items {
        //
        //            }
        //        }
        //        if let item = PDFOfficeMenu?.item(withTitle: NSLocalizedString("Volume Discount", comment: "")) {
        //            item.isHidden = true
        //        }
        //        if let item = PDFOfficeMenu?.item(withTitle: NSLocalizedString("One License for Mac and Windows", comment: "")) {
        //            item.isHidden = true
        //        }
        //        if let item = PDFOfficeMenu?.item(withTitle: NSLocalizedString("Education Discount", comment: "")) {
        //            item.isHidden = true
        //        }
        //
        let fileMenu = mainMenu?.item(at: 1)?.submenu
        for item in fileMenu?.items ?? [] {
            if item.action == NSSelectorFromString("menuItemAction_showInFinder:") {
                let shareItem: NSMenuItem? = NSMenuItem(title: KMLocalizedString("Share"), action: nil, target: nil)
                fileMenu?.insertItem(shareItem!, at: item.index)
                shareItem?.submenu = NSSharingServicePicker.menu(forSharingItems: [""], subjectContext: "", withTarget: self, selector: #selector(sharePageItemAction), serviceDelegate: nil)
            }
        }
    }
    
    @objc func sharePageItemAction(sender: NSMenuItem) {
        if ((NSApp.mainWindow?.windowController is KMBrowserWindowController) == false) {
            return
        }
        
        let windowControler = NSApp.mainWindow?.windowController as! KMBrowserWindowController
        let model = windowControler.browser?.tabStripModel
        if let cnt = model?.count(), cnt <= 0 {
            return
        }
        
        if let data = model?.activeTabContents()?.isHome, data {
            return
        }
        
        let document: KMMainDocument = model?.activeTabContents() as! KMMainDocument
        if let data = document.mainViewController?.saveWatermarkFlag, !data {
            let represent : NSSharingService = sender.representedObject as! NSSharingService
            represent.perform(withItems: [document.fileURL as Any])
            return
        }
        
        let represent : NSSharingService = sender.representedObject as! NSSharingService
        represent.perform(withItems: [document.fileURL as Any])
    }
    
    
    @objc func accountRefreshAction() {
        
        
    }
    
}

// MARK: - PDF Reader Pro Menu
extension AppDelegate {
    
    func isPDFReaderProMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        let selectors = [NSSelectorFromString("menuItemAction_openPreferenceWindow:"),
                         NSSelectorFromString("menuItemAction_loginMenuItemAction:"),
                         NSSelectorFromString("menuItemAction_logoutMenuItemAction:"),
                         NSSelectorFromString("menuItemAction_buyNowItemAction:"),
                         NSSelectorFromString("menuItemAction_restoreMenuItemAction:"),
                         NSSelectorFromString("menuItemAction_EducationDiscountAction:"),
                         NSSelectorFromString("menuItemAction_volumeDiscount:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validatePDFReaderProMenuItem(_ menuItem: NSMenuItem) -> Bool {
        
        return true
    }
    
    //MARK: -IBAction
    @IBAction func menuItemAction_openPreferenceWindow(_ sender: Any) {
        SettingsWindowController.shared.showWindow(self)
    }
    
    @IBAction func menuItemAction_loginMenuItemAction(_ sender: Any) {
        
    }
    
    @IBAction func menuItemAction_logoutMenuItemAction(_ sender: Any) {
        
    }
    
    @IBAction func menuItemAction_buyNowItemAction(_ sender: Any) {
        
    }
    
    @IBAction func menuItemAction_restoreMenuItemAction(_ sender: Any) {
         
    }
    
    @IBAction func menuItemAction_EducationDiscountAction(_ sender: NSMenuItem) {
        KMTools.openEducateWebSite()
    }
    
    @IBAction func menuItemAction_volumeDiscount(_ sender: NSMenuItem) {
        KMTools.openVPPWebSite()
    }
}

//MARK: - File Menu
extension AppDelegate {
    func isFileMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        let selectors = [NSSelectorFromString("menuItemAction_NewFromFile:"),
                         NSSelectorFromString("menuItemAction_NewFromWeb:"),
                         NSSelectorFromString("menuItemAction_NewFromClipboard:"),
                         NSSelectorFromString("menuItemAction_NewFromScanner:"),
                         NSSelectorFromString("menuItemAction_NewFromBlankPage:"),
                         NSSelectorFromString("menuItemAction_NewFromWindow:"),
                         NSSelectorFromString("menuItemAction_MergePDFFiles:"),
                         NSSelectorFromString("menuItemAction_closeDocument:"),
                         NSSelectorFromString("menuItemAction_closeWindow:"),
                         NSSelectorFromString("menuItemAction_closeAllWindows:"),
                         NSSelectorFromString("menuItemClick_saveAsFlattenedPDF:"),
                         NSSelectorFromString("menuItemClick_Compress:"),
                         NSSelectorFromString("menuItemAction_ConvertTo:"),
                         NSSelectorFromString("menuItemAction_addPassword:"),
                         NSSelectorFromString("menuItemAction_removePassword:"),
                         NSSelectorFromString("menuItemAction_unlockFunction:"),
                         NSSelectorFromString("menuItemAction_searchPDF:"),
                         NSSelectorFromString("menuItemAction_performFindPanelAction:"),
                         NSSelectorFromString("menuItemAction_showInFinder:"),
                         NSSelectorFromString("menuItemAction_property:"),
                         NSSelectorFromString("menuItemAction_print:"),
                         NSSelectorFromString("menuItemAction_customPrint:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateFileMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        
        if action == NSSelectorFromString("menuItemAction_NewFromFile:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_NewFromWeb:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_NewFromClipboard:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_NewFromScanner:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_NewFromBlankPage:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_NewFromWindow:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_MergePDFFiles:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_closeDocument:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_closeWindow:") {
            return true
        } else if action == NSSelectorFromString("menuItemAction_closeAllWindows:") {
            return true
        }
        
        if let mainVC = self.mainViewController() {
            if action == NSSelectorFromString("menuItemClick_saveAsFlattenedPDF:") {
                
            } else if action == NSSelectorFromString("menuItemClick_Compress:") {
                
            } else if action == NSSelectorFromString("menuItemAction_ConvertTo:") {
                
            } else if action == NSSelectorFromString("menuItemAction_addPassword:") {
                
            } else if action == NSSelectorFromString("menuItemAction_removePassword:") {
                if mainVC.listView.document.isLocked == true || mainVC.listView.document.password.count > 0 {
                    return true
                } else {
                    return false
                }
            } else if action == NSSelectorFromString("menuItemAction_unlockFunction:") {
                return mainVC.listView.document.isEncrypted
            } else if action == NSSelectorFromString("menuItemAction_searchPDF:") {
                
            } else if action == NSSelectorFromString("menuItemAction_performFindPanelAction:") {
                
            } else if action == NSSelectorFromString("menuItemAction_showInFinder:") {
                
            } else if action == NSSelectorFromString("menuItemAction_property:") {
                
            } else if action == NSSelectorFromString("menuItemAction_print:") {
                
            } else if action == NSSelectorFromString("menuItemAction_customPrint:") {
                
            }
            return true
        }
        return false
    }
    
    //MARK: -IBAction
    @IBAction func menuItemAction_NewFromFile(_ sender: NSMenuItem) -> Void {
        if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
            _windowC.newFromFile()
        }
    }
    
    @IBAction func menuItemAction_NewFromWeb(_ sender: NSMenuItem) -> Void {
        if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
            _windowC.newFromWebPage()
        }
    }
    
    @IBAction func menuItemAction_NewFromClipboard(_ sender: NSMenuItem) -> Void {
        if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
            _windowC.newFromClipboard()
        }
    }
    
    @IBAction func menuItemAction_NewFromScanner(_ sender: NSMenuItem) -> Void {
        if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
            _windowC.importFromScanner()
        }
    }
    
    @IBAction func menuItemAction_NewFromBlankPage(_ sender: NSMenuItem) -> Void {
        if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
            _windowC.newBlankPage()
        }
    }
    
    @IBAction func menuItemAction_NewFromWindow(_ sender: NSMenuItem) -> Void {
        if sender.tag == 0 {
            if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
                _windowC.screenShot_SelectArea(nil)
            }
        } else if sender.tag == 1 {
            if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
                _windowC.screenShot_Window(nil)
            }
        } else if sender.tag == 2 {
            if let _windowC = NSApp.mainWindow?.windowController as? KMBrowserWindowController {
                _windowC.screenShot_FullScreen(nil)
            }
        }
    }
    
    @IBAction func menuItemAction_MergePDFFiles(_ sender: NSMenuItem) -> Void {
        if let homeVC = self.homeViewController() {
            homeVC.fastTool_MergePDF()
        } else if let mainVC = self.mainViewController() {
            mainVC.showMergeWindow(mainVC.listView.document.password)
        }
    }
    
    @IBAction func menuItemAction_closeDocument(_ sender: Any) {
        if ((NSApp.mainWindow?.windowController is KMBrowserWindowController) == false) {
            guard let windowControler = NSApp.mainWindow?.windowController else {
                return
            }
            windowControler.window?.performClose(nil)
            return
        }
        
        let windowControler = NSApp.mainWindow?.windowController as? KMBrowserWindowController
        if let data = windowControler?.browser, data.tabCount() >= 2 { // 有两个以上的标签
            if data.activeTabIndex() == 0 { // 主页不允许关闭，暂时处理为无反应
                return
            }
        }
        
        if let browser = windowControler?.browser {
            if browser.tabCount() == 1 {
                windowControler?.window?.close()
            } else {
                if let _ = windowControler?.window?.attachedSheet {
                    NSSound.beep()
                    return
                }
                browser.closeTab()
            }
        } else {
            windowControler?.window?.close()
        }
    }
    
    @IBAction func menuItemAction_closeWindow(_ sender: Any) {
        NSApp.mainWindow?.close()
        
    }
    
    @IBAction func menuItemAction_closeAllWindows(_ sender: Any) {
        for window in NSApp.windows {
            window.close()
        }
    }
    
    @IBAction func menuItemClick_saveAsFlattenedPDF(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.saveAsFlattenedPDFAction()
        }
    }
    
    @IBAction func menuItemClick_Compress(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.showCompressController(mainVC.listView.document.documentURL)
        }
    }
    
    @IBAction func menuItemAction_ConvertTo(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            var convertType: KMPDFConvertType = .word
            if sender.tag == 0 {
                
            } else if sender.tag == 1 {
                convertType = .excel
            } else if sender.tag == 2 {
                convertType = .ppt
            } else if sender.tag == 30 {
                convertType = .jpeg
            } else if sender.tag == 31 {
                convertType = .jpg
            } else if sender.tag == 32 {
                convertType = .png
            } else if sender.tag == 33 {
                convertType = .gif
            } else if sender.tag == 34 {
                convertType = .tiff
            } else if sender.tag == 35 {
                convertType = .tga
            } else if sender.tag == 36 {
                convertType = .bmp
            } else if sender.tag == 37 {
                convertType = .jp2
            } else if sender.tag == 4 {
                convertType = .rtf
            } else if sender.tag == 5 {
                convertType = .csv
            } else if sender.tag == 6 {
                convertType = .html
            } else if sender.tag == 7 {
                convertType = .text
            } else if sender.tag == 8 {
                convertType = .json
            }
            mainVC.showConvertWindow(convertType)
        }
    }
    
    @IBAction func menuItemAction_addPassword(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.showSecureWindow()
        }
    }
    
    @IBAction func menuItemAction_removePassword(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.showRemoveSecureWindow()
        }
    }
    
    @IBAction func menuItemAction_unlockFunction(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.unlockPDFDocument()
        }
    }
    
    @IBAction func menuItemAction_searchPDF(_ sender: Any?) {
        
    }
    
    @IBAction func menuItemAction_performFindPanelAction(_ sender: NSMenuItem) {
        var forward = true
        var findString: String?
        
    }
    
    @IBAction func menuItemAction_showInFinder(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.showInFinder()
        }
    }
    
    @IBAction func menuItemAction_property(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            KMInfoWindowController.shared.showWindow(sender)
        }
    }
    
    @IBAction func menuItemAction_print(_ sender: Any) {
        if let mainVC = self.mainViewController() {
            mainVC.showPrintWindow()
        }
    }
    
    @IBAction func menuItemAction_customPrint(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if sender.tag == 0 {
                mainVC.showPosterPrintWindow()
            } else if sender.tag == 1 {
                mainVC.showMultiplePrintWindow()
            } else if sender.tag == 2 {
                mainVC.showBookletPrintWindow()
            }
        }
    }
    
}

// MARK: - Edit Menu
extension AppDelegate {
    func isEditMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        let selectors = [ NSSelectorFromString("menuItemAction_PasteAndMatch:"),
                          NSSelectorFromString("menuItemAction_ShowFont:"),
                          NSSelectorFromString("menuItemAction_FontAction:"),
                          NSSelectorFromString("menuItemAction_CustomFont:"),
                          NSSelectorFromString("menuItemAction_FontAlign:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateEditMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        if let mainVC = self.mainViewController() {
            if action == NSSelectorFromString("menuItemAction_PasteAndMatch:") {
                
            } else if action == NSSelectorFromString("menuItemAction_ShowFont:") {
                
            } else if action == NSSelectorFromString("menuItemAction_FontAction:") {
                
            } else if action == NSSelectorFromString("menuItemAction_CustomFont:") {
                
            } else if action == NSSelectorFromString("menuItemAction_FontAlign:") {
                
            }
            return true
        }
        return false
    }
    
    //MARK: -IBAction
    
    
    @IBAction func menuItemAction_PasteAndMatch(_ sender: NSMenuItem) {
        
    }
 
    @IBAction func menuItemAction_ShowFont(_ sender: NSMenuItem) {
        NSFontManager.shared.orderFrontFontPanel(nil)
    }
    
    @IBAction func menuItemAction_FontAction(_ sender: Any) {
        
    }
    
    @IBAction func menuItemAction_CustomFont(_ sender: NSMenuItem) {
        
    }
    
    @IBAction func menuItemAction_FontAlign(_ sender: NSMenuItem) {
        
    }
    
    
}

// MARK: - View Menu
extension AppDelegate {
    func isViewMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        let selectors = [NSSelectorFromString("menuItemAction_ChangeDisplayMode:"),
                         NSSelectorFromString("menuItemAction_ReadMode:"),
                         NSSelectorFromString("menuItemAction_FullScreen:"),
                         NSSelectorFromString("menuItemAction_Presentation:"),
                         NSSelectorFromString("menuItemAction_SplitView:"),
                         NSSelectorFromString("menuItemAction_BOTAMode:"),
                         NSSelectorFromString("menuItemAction_Outline:"),
                         NSSelectorFromString("menuItemAction_Notes:"),
                         NSSelectorFromString("menuItemAction_Annotate:"),
                         NSSelectorFromString("menuItemAction_Themes:"),
                         NSSelectorFromString("menuItemAction_Zoom:"),
                         NSSelectorFromString("menuItemAction_Rotate:"),
                         NSSelectorFromString("menuItemAction_HighlightFormsField:"),
                         NSSelectorFromString("menuItemAction_HighlightLinks:"),
                         NSSelectorFromString("menuItemAction_ResetForm:"),
                         NSSelectorFromString("menuItemAction_AutoScroll:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateViewMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        if let mainVC = self.mainViewController() {
            if action == NSSelectorFromString("menuItemAction_ChangeDisplayMode:") {
                menuItem.state = .off
                if menuItem.tag == 1 && mainVC.getPDFViewPageLayoutType() == .singlePage {
                    menuItem.state = .on
                } else if menuItem.tag == 2 && mainVC.getPDFViewPageLayoutType() == .singlePageContinue {
                    menuItem.state = .on
                } else if menuItem.tag == 3 && mainVC.getPDFViewPageLayoutType() == .twoPage {
                    menuItem.state = .on
                } else if menuItem.tag == 4 && mainVC.getPDFViewPageLayoutType() == .twoPageContinue {
                    menuItem.state = .on
                } else if menuItem.tag == 5 && mainVC.getPDFViewPageLayoutType() == .bookMode {
                    menuItem.state = .on
                }
            } else if action == NSSelectorFromString("menuItemAction_ReadMode:") {
                
            } else if action == NSSelectorFromString("menuItemAction_FullScreen:") {
                
            } else if action == NSSelectorFromString("menuItemAction_Presentation:") {
                
            } else if action == NSSelectorFromString("menuItemAction_SplitView:") {
                
            } else if action == NSSelectorFromString("menuItemAction_BOTAMode:") {
                menuItem.state = .off
                if menuItem.tag == 0 && mainVC.viewManager.pdfSideBarType == .thumbnail {
                    menuItem.state = .on
                } else if menuItem.tag == 1 && mainVC.viewManager.pdfSideBarType == .outline {
                    menuItem.state = .on
                } else if menuItem.tag == 2 && mainVC.viewManager.pdfSideBarType == .bookmark {
                    menuItem.state = .on
                } else if menuItem.tag == 3 && mainVC.viewManager.pdfSideBarType == .annotation {
                    menuItem.state = .on
                }
            } else if action == NSSelectorFromString("menuItemAction_Themes:") {
                menuItem.state = .off 
                if menuItem.tag == 0 && mainVC.listView.displayMode == .normal {
                    menuItem.state = .on
                } else if menuItem.tag == 1 && mainVC.listView.displayMode == .soft {
                    menuItem.state = .on
                } else if menuItem.tag == 2 && mainVC.listView.displayMode == .green {
                    menuItem.state = .on
                } else if menuItem.tag == 3 && mainVC.listView.displayMode == .night {
                    menuItem.state = .on
                }
            } else if action == NSSelectorFromString("menuItemAction_Zoom:") {
                
            } else if action == NSSelectorFromString("menuItemAction_Rotate:") {
                
            } else if action == NSSelectorFromString("menuItemAction_HighlightFormsField:") {
                let enabled = CPDFKitConfig.sharedInstance().enableFormFieldHighlight()
                menuItem.state = enabled ? .on : .off
            } else if action == NSSelectorFromString("menuItemAction_HighlightLinks:") {
                let enabled = CPDFKitConfig.sharedInstance().enableLinkFieldHighlight()
                menuItem.state = enabled ? .on : .off
            } else if action == NSSelectorFromString("menuItemAction_ResetForm:") {
                
            } else if action == NSSelectorFromString("menuItemAction_AutoScroll:") {
                menuItem.state = mainVC.isAutoFlowOn() ? .on : .off
            }
            return true
        }
        return false
    }
    
    //MARK: -IBAction
    @IBAction func menuItemAction_ChangeDisplayMode(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if sender.tag == 1 {
                mainVC.updatePDFViewDisplayMode(viewMode: .singlePage)
            } else if sender.tag == 2 {
                mainVC.updatePDFViewDisplayMode(viewMode: .singlePageContinuous)
            } else if sender.tag == 3 {
                mainVC.updatePDFViewDisplayMode(viewMode: .twoUp)
            } else if sender.tag == 4 {
                mainVC.updatePDFViewDisplayMode(viewMode: .twoUpContinuous)
            } else if sender.tag == 5 {
                mainVC.updatePDFViewDisplayMode(isbookMode: true)
            }
        }
    }
    
    @IBAction func menuItemAction_ReadMode(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.viewManager.isPDFReadMode = !mainVC.viewManager.isPDFReadMode
            if mainVC.viewManager.isPDFReadMode {
                mainVC.openPDFReadMode()
            } else {
                mainVC.exitPDFReadMode()
            }
        }
    }
    
    @IBAction func menuItemAction_FullScreen(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.view.window?.toggleFullScreen(nil)
        }
    }
    
    @IBAction func menuItemAction_Presentation(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.togglePresentation(nil)
        }
    }
    
    @IBAction func menuItemAction_SplitView(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if sender.tag == 0 {
                mainVC.listView.viewSplitMode = .vertical
            } else if sender.tag == 1 {
                mainVC.listView.viewSplitMode = .horizontal
            } else if sender.tag == 2 {
                mainVC.listView.viewSplitMode = .disable
            }
            mainVC.reloadPDFSplitInfo()
        }
    }
    
    @IBAction func menuItemAction_BOTAMode(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if sender.tag == 0 {
                if mainVC.viewManager.pdfSideBarType == .thumbnail {
                    mainVC.viewManager.pdfSideBarType = .none
                } else {
                    mainVC.viewManager.pdfSideBarType = .thumbnail
                }
            } else if sender.tag == 1 {
                if mainVC.viewManager.pdfSideBarType == .outline {
                    mainVC.viewManager.pdfSideBarType = .none
                } else {
                    mainVC.viewManager.pdfSideBarType = .outline
                }
            } else if sender.tag == 2 {
                if mainVC.viewManager.pdfSideBarType == .bookmark {
                    mainVC.viewManager.pdfSideBarType = .none
                } else {
                    mainVC.viewManager.pdfSideBarType = .bookmark
                }
            } else if sender.tag == 3 {
                if mainVC.viewManager.pdfSideBarType == .annotation {
                    mainVC.viewManager.pdfSideBarType = .none
                } else {
                    mainVC.viewManager.pdfSideBarType = .annotation
                }
            }
            if mainVC.viewManager.pdfSideBarType == .none {
                mainVC.toggleCloseLeftSide()
            } else {
                mainVC.toggleOpenLeftSide(pdfSideBarType: mainVC.viewManager.pdfSideBarType)
            }
            mainVC.reloadSideBar()
        }
    }
    
    
    @IBAction func menuItemAction_Themes(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            var model: KMPDFViewMode = .normal
            var color = NSColor.clear
            
            if sender.tag == 0 {
                model = .normal
            } else if sender.tag == 1 {
                model = .soft
            } else if sender.tag == 2 {
                model = .green
            } else if sender.tag == 3 {
                model = .night
            } else {
                model = .other
            }
            mainVC.listView.setPageBackgroundColorWith(color, viewMode: model)
            mainVC.updatePDFDisplaySettingView()
        }
    }
    
    @IBAction func menuItemAction_Zoom(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            var type: KMPDFZoomType = .width
            if sender.tag == 0 {
                type = .width
            } else if sender.tag == 1 {
                type = .fit
            } else if sender.tag == 2 {
                type = .actualSize
            } else if sender.tag == 3 {
                type = .zoom_In
            } else if sender.tag == 4 {
                type = .zoom_Out
            }
            mainVC.selectZoom(type)
        }
    }
    
    @IBAction func menuItemAction_Rotate(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if sender.tag == 0 {
                mainVC.rotateLeft(page: mainVC.listView.currentPage(), listView: mainVC.listView)
            } else if sender.tag == 1 {
                mainVC.rotateRight(page: mainVC.listView.currentPage(), listView: mainVC.listView)
            }
        }
    }
    
    @IBAction func menuItemAction_HighlightFormsField(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            let enabled = CPDFKitConfig.sharedInstance().enableFormFieldHighlight()
            CPDFKitConfig.sharedInstance().setEnableFormFieldHighlight(!enabled)
            
            mainVC.listView.setNeedsDisplayForVisiblePages()
        }
    }
    
    @IBAction func menuItemAction_HighlightLinks(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            let enabled = CPDFKitConfig.sharedInstance().enableLinkFieldHighlight()
            
            CPDFAnnotation.updateLinkFieldHighlight(mainVC.listView, linkFieldHighlight: !enabled)
        }
    }
    
    @IBAction func menuItemAction_ResetForm(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.listView.resetFormAnnotation()
        }
    }
    
    @IBAction func menuItemAction_AutoScroll(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.toggleAutoFlow(nil)
        }
    }
}

// MARK: - Go Menu
extension AppDelegate {
    func isGoMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        let selectors = [NSSelectorFromString("menuItemAction_Next:"),
                         NSSelectorFromString("menuItemAction_Previous:"),
                         NSSelectorFromString("menuItemAction_First:"),
                         NSSelectorFromString("menuItemAction_Last:"),
                         NSSelectorFromString("menuItemAction_GotoPage:"),
                         NSSelectorFromString("menuItemAction_Back:"),
                         NSSelectorFromString("menuItemAction_Forward:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateGoMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        if let mainVC = self.mainViewController() {
            if action == NSSelectorFromString("menuItemAction_Next:") {
                if mainVC.listView.isEditing() && mainVC.listView.isEditable() {
                    return false
                }
                return (mainVC.pdfViewCanHorizontalScroll() == false && mainVC.listView.canGoToNextPage())
            } else if action == NSSelectorFromString("menuItemAction_Previous:") {
                
                if mainVC.listView.isEditing() && mainVC.listView.isEditable() {
                    return false
                }
                return (mainVC.pdfViewCanHorizontalScroll() == false && mainVC.listView.canGoToPreviousPage())
            } else if action == NSSelectorFromString("menuItemAction_First:") {
                return mainVC.listView.canGoToFirstPage()
            } else if action == NSSelectorFromString("menuItemAction_Last:") {
                return mainVC.listView.canGoToLastPage()
            } else if action == NSSelectorFromString("menuItemAction_GotoPage:") {
                return true
            } else if action == NSSelectorFromString("menuItemAction_Back:") {
                return mainVC.listView.km_canGoBack()
            } else if action == NSSelectorFromString("menuItemAction_Forward:") {
                return mainVC.listView.km_canGoForward()
            }
        }
        return false
    }
    
    //MARK: -IBAction
    @IBAction func menuItemAction_Next(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if (mainVC.listView.canGoToNextPage()) {
                mainVC.listView.goToNextPage(nil)
            }
        }
    }
    @IBAction func menuItemAction_Previous(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if (mainVC.listView.canGoToPreviousPage()) {
                mainVC.listView.goToPreviousPage(nil)
            }
        }
    }
    
    @IBAction func menuItemAction_First(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.listView.goToFirstPage(nil)
        }
    }
    
    @IBAction func menuItemAction_Last(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.listView.goToLastPage(nil)
        }
    }
    
    @IBAction func menuItemAction_GotoPage(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            mainVC.gotoPage(nil)
        }
    }
    
    @IBAction func menuItemAction_Back(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if (mainVC.listView.km_canGoBack()) {
                mainVC.listView.km_goBack(nil)
            }
        }
    }
    
    @IBAction func menuItemAction_Forward(_ sender: NSMenuItem) {
        if let mainVC = self.mainViewController() {
            if (mainVC.listView.km_canGoForward()) {
                mainVC.listView.km_goForward(nil)
            }
        }
    }
}

// MARK: - Window Menu
extension AppDelegate {
    func isWindowMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        var selectors = [NSSelectorFromString("11:"),
                         NSSelectorFromString("11:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateWindowMenuItem(_ menuItem: NSMenuItem) -> Bool {
        
        return true
    }
    
    //MARK: -IBAction
}

// MARK: - help Menu
extension AppDelegate {
    func isHelpMenuActions(sel: Selector?) -> Bool {
        guard let selector = sel else {
            return false
        }
        var selectors = [NSSelectorFromString("menuItemAction_APPWebSite:"),
                         NSSelectorFromString("menuItemAction_quickStudy:"),
                         NSSelectorFromString("menuItemAction_OnlineHelp:"),
                         NSSelectorFromString("menuItemAction_Feedback:"),
                         NSSelectorFromString("menuItemAction_FiveStar:"),
                         NSSelectorFromString("menuItemAction_SubscribeUs:"),
                         NSSelectorFromString("menuItemAction_CheckForUpdate:"),
                         NSSelectorFromString("menuItemAction_VPP:"),
                         NSSelectorFromString("menuItemAction_FreeTemplate:"),
                         NSSelectorFromString("menuItemAction_MoreProducts:"),
                         NSSelectorFromString("menuItemAction_PowerBy:"),
                         NSSelectorFromString("menuItemAction_privacyPolicy:"),
                         NSSelectorFromString("menuItemAction_TermsofService:")]
        if selectors.contains(selector) {
            return true
        }
        return false
    }
    
    func validateHelpMenuItem(_ menuItem: NSMenuItem) -> Bool {
        
        return true
    }
    
    //MARK: -IBAction
    @IBAction func menuItemAction_APPWebSite(_ sender: NSMenuItem) -> Void {
        KMTools.openURL(urlString: APPMain_Link)
    }
    
    @IBAction func menuItemAction_quickStudy(_ sender: NSMenuItem) -> Void {
        KMTools.openQuickStartStudy()
    }
    
    @IBAction func menuItemAction_OnlineHelp(_ sender: NSMenuItem) -> Void {
        KMTools.openFAQWebsite()
    }
    
    @IBAction func menuItemAction_Feedback(_ sender: NSMenuItem) -> Void {
        KMTools.feekback()
    }
    
    @IBAction func menuItemAction_FiveStar(_ sender: NSMenuItem) -> Void {
        KMTools.rateUs()
    }
    
    @IBAction func menuItemAction_SubscribeUs(_ sender: NSMenuItem) -> Void {
        KMEmailSubWindowController().showWindow(nil)
    }
    
    @IBAction func menuItemAction_CheckForUpdate(_ sender: NSMenuItem) -> Void {
#if VERSION_DMG
        SUUpdater.shared().checkForUpdates(sender)
#endif
    }
    
    @IBAction func menuItemAction_VPP(_ sender: NSMenuItem) -> Void {
        KMTools.openVPPWebSite()
    }
    
    @IBAction func menuItemAction_FreeTemplate(_ sender: NSMenuItem) -> Void {
        KMTools.openFreePDFTemplatesWebsite()
    }
    
    @IBAction func menuItemAction_MoreProducts(_ sender: NSMenuItem) -> Void {
        KMTools.openMoreProductWebsite()
    }
    
    @IBAction func menuItemAction_PowerBy(_ sender: NSMenuItem) -> Void {
        KMTools.openComPDFKitPowerWebsite()
    }
    
    @IBAction func menuItemAction_privacyPolicy(_ sender: NSMenuItem) -> Void {
        KMTools.openPrivacyPolicyWebSite()
    }
    
    @IBAction func menuItemAction_TermsofService(_ sender: NSMenuItem) -> Void {
        KMTools.openTermOfServiceWebSite()
    }
    
    
}