//
//  KMAITranslationConfirmWindowController.swift
//  PDF Reader Pro
//
//  Created by wanjun on 2023/5/25.
//

import Cocoa

class KMAITranslationConfirmWindowController: NSWindowController {

    @IBOutlet weak var label: NSTextField!
    @IBOutlet weak var subLabel: NSTextField!
    @IBOutlet weak var cancelBox: NSBox!
    @IBOutlet weak var cancelLabel: NSTextField!
    @IBOutlet weak var cancelButton: NSButton!
    @IBOutlet weak var translateBox: NSBox!
    @IBOutlet weak var translateLabel: NSTextField!
    @IBOutlet weak var translateButton: NSButton!
    
    @IBOutlet weak var fromBox: NSBox!
    @IBOutlet weak var fromLabel: NSTextField!
    @IBOutlet weak var toBox: NSBox!
    @IBOutlet weak var toLabel: NSTextField!
    @IBOutlet weak var languageImageView: NSImageView!
    
    @IBOutlet weak var tipsLabel1: NSTextField!
    @IBOutlet weak var tipsLabel2: NSTextField!

    @IBOutlet weak var prePDFView: KMCustomPDFView?

    var filePath: String = ""
    var progressController: SKProgressController?
    var timer: Timer?
    var timerCounter = 0.0
    var fromStr: String = "auto"
    var toStr: String = "en"
    var fromLanguages: [String] = ["Automatic", "English", "Simplified Chinese", "Traditional Chinese", "Japanese", "Korean", "French", "Spanish", "Italian", "German", "Portuguese", "Russian", "Vietnamese", "Thai", "Arabic", "Greek", "Bulgarian", "Finnish", "Slovene", "Dutch", "Czech", "Swedish", "Polish", "Danish", "Romanian", "Hungarian"]
    var toLanguages: [String] = ["English", "Simplified Chinese", "Traditional Chinese", "Japanese", "Korean", "French", "Spanish", "Italian", "German", "Portuguese", "Russian", "Vietnamese", "Thai", "Arabic", "Greek", "Bulgarian", "Finnish", "Slovene", "Dutch", "Czech", "Swedish", "Polish", "Danish", "Romanian", "Hungarian"]
    var popover: NSPopover?
    
    var saveFileUrl: URL = URL(fileURLWithPath: "")

    deinit {
        self.prePDFView?.removeFromSuperview()
        self.prePDFView = nil
    }
    
    override func windowDidLoad() {
        super.windowDidLoad()

        self.initLocalization()
        self.initializeUI()
        
        let document = CPDFDocument(url:  URL(fileURLWithPath: self.filePath))
        self.prePDFView?.document = document!
        
        if (self.prePDFView?.documentView() != nil) {
            self.prePDFView?.documentView().enclosingScrollView?.hasVerticalScroller = false
            self.prePDFView?.documentView().enclosingScrollView?.hasHorizontalScroller = false
        }
    }
    
    func initializeUI() -> Void {
        self.label.textColor = NSColor.km_init(hex: "#252629")
        self.label.font = NSFont.SFProTextSemiboldFont(16.0)
        
        self.subLabel.textColor = NSColor.km_init(hex: "##616469")
        self.subLabel.font = NSFont.SFProTextRegularFont(12.0)
        
        self.fromBox.fillColor = NSColor.km_init(hex: "#FFFFFF")
        self.fromBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
        self.fromLabel.textColor = NSColor.km_init(hex: "#252629")
        self.fromLabel.font = NSFont.SFProTextRegularFont(14.0)
        self.toBox.fillColor = NSColor.km_init(hex: "#FFFFFF")
        self.toBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
        self.toLabel.textColor = NSColor.km_init(hex: "#252629")
        self.toLabel.font = NSFont.SFProTextRegularFont(14.0)
        self.languageImageView.image = NSImage(named: "ic_transtate")
        
        self.tipsLabel1.textColor = NSColor.km_init(hex: "#94989C")
        self.tipsLabel1.font = NSFont.SFProTextRegularFont(12.0)
        self.tipsLabel2.textColor = NSColor.km_init(hex: "#94989C")
        self.tipsLabel2.font = NSFont.SFProTextRegularFont(12.0)

        self.cancelBox.fillColor = NSColor.km_init(hex: "#F5F5F5")
        self.cancelBox.cornerRadius = 5.0
        self.cancelBox.borderWidth = 0.0
        self.cancelLabel.textColor = NSColor.km_init(hex: "#4D4D4D")
        self.cancelLabel.font = NSFont.SFProTextRegularFont(13.0)
        self.translateBox.fillColor = NSColor.km_init(hex: "#4B91F7")
        self.translateBox.cornerRadius = 5.0
        self.translateBox.borderWidth = 0.0
        self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
        self.translateLabel.font = NSFont.SFProTextRegularFont(13.0)
        
        self.prePDFView?.backgroundColor = NSColor.km_init(hex: "#F7F8FA")
    }
    
    func initLocalization() -> Void {
        self.label.stringValue = NSLocalizedString("AI Translation", comment: "")
        self.subLabel.stringValue = NSLocalizedString("Translation Language", comment: "")
        self.cancelLabel.stringValue = NSLocalizedString("Cancel", comment: "")
        self.translateLabel.stringValue = NSLocalizedString("Translate", comment: "")
        let languageArr = UserDefaults.standard.array(forKey: "KMAITranslationLanguageArrayKey") as? [String] ?? []
        if (languageArr.count > 0) {
            self.fromLabel.stringValue = languageArr[0]
            self.toLabel.stringValue = languageArr[1]
        } else {
            self.fromLabel.stringValue = NSLocalizedString("Automatic", comment: "")
            self.toLabel.stringValue = NSLocalizedString("English", comment: "")

            let languages = [NSLocalizedString("Automatic", comment: ""), NSLocalizedString("English", comment: "")]
            UserDefaults.standard.set(languages, forKey: "KMAITranslationLanguageArrayKey")
            UserDefaults.standard.synchronize()
        }
        self.tipsLabel1.stringValue = NSLocalizedString("Scanned PDF files are not supported", comment: "")
        self.tipsLabel2.stringValue = NSLocalizedString("Limit document size to 10M, document page number to 30, 10w characters per month.", comment: "")
    }
    
    override func mouseDown(with event: NSEvent) {
        if self.popover != nil {
            self.popover?.close()
            self.popover = nil
        }
    }

    // MARK: Private Methods
    

    // MARK: Action Methods

    @IBAction func translateAction(_ sender: NSButton) {
//        if !KMLightMemberManager.manager.isLogin() {
//            KMLoginWindowController.show(window: NSApp.mainWindow!)
//
//            return
//        }
//        self._translateAction(sender)
        Task { @MainActor in
//            if await (KMLightMemberManager.manager.canPayFunction() == false) {
//                let _ = KMSubscribeWaterMarkWindowController.show(window: self.window!, type: .aiTranslate) { isSubscribeSuccess, _, isClose in
//                    if (isClose) {
//                        return
//                    }
//                    if (isSubscribeSuccess) {
//                        self._translateAction(sender)
//                        return
//                    }
//                }
//                return
//            }
            if await (KMLightMemberManager.manager.canUseAdvanced() == false) {
                _ = KMComparativeTableViewController.show(window: self.window!, inputType: .aiTranslate)
                return
            }
            self._translateAction(sender)
        }
    }
    
    private func _translateAction(_ sender: NSButton) {
        let filePathUrl = URL(fileURLWithPath: self.filePath)
        let fileNameWithoutExtension = filePathUrl.deletingPathExtension().lastPathComponent
        let newFileName = fileNameWithoutExtension + "_aiTranslation"
        
        let outputSavePanel = NSSavePanel()
        outputSavePanel.title = NSLocalizedString("Translate", comment: "")
        outputSavePanel.allowedFileTypes = ["pdf"]
        outputSavePanel.nameFieldStringValue = newFileName
        outputSavePanel.directoryURL = filePathUrl.deletingLastPathComponent()
        
        let result = outputSavePanel.runModal()
        if result == .OK {
            self.saveFileUrl = outputSavePanel.url!
            
            DispatchQueue.main.async {
                self.showProgressWindow()
                self.progressController?.maxValue = Double(100)
            }
            timer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(timerTick), userInfo: nil, repeats: true)

            let languages = [self.fromLabel.stringValue, self.toLabel.stringValue]
            UserDefaults.standard.set(languages, forKey: "KMAITranslationLanguageArrayKey")
            UserDefaults.standard.synchronize()
            self.fromStr = self.languageAbbreviation(self.fromLabel.stringValue)
            self.toStr = self.languageAbbreviation(self.toLabel.stringValue)

            let infoDictionary = Bundle .main.infoDictionary!
            let majorVersion = infoDictionary["CFBundleShortVersionString"]

            KMRequestServerManager.manager.aiTranslationFileUpload(file: self.filePath, version: majorVersion as! String) { [weak self] success, result in
                if success {
                    let result: NSDictionary = result!.result

                    let fileKey = result["fileKey"]
                    let fileName = result["fileName"]
                    let pageCount = result["pageCount"]
                    if fileKey != nil {
                        self?.fileTranslateHandle(fileKey as! String)
                    }
                } else {
                    let result: String = result!.message

                    DispatchQueue.main.async {
                        self?.hiddenProgressWindow()
     
                        let alert = NSAlert()
                        alert.alertStyle = .critical
                        alert.messageText = result
                        alert.runModal()
                    }
                }
            }
        } else {
            outputSavePanel.close()
        }
    }
    
    @IBAction func cancelAction(_ sender: NSButton) {
        NSApp.mainWindow!.endSheet(self.window!)
        self.window?.orderOut(self)
    }
    
    @IBAction func fromLanguageAction(_ sender: NSButton) {
        self.languageAction(true)
    }
    
    @IBAction func toLanguageAction(_ sender: NSButton) {
        self.languageAction(false)
    }
    
    func languageAction(_ isFromLanguage: Bool) -> Void {
        if (self.popover != nil && self.popover!.isShown) {
            self.popover?.close()
            self.popover = nil
            return
        }
        var languages = self.fromLanguages
        if !isFromLanguage {
            languages = self.toLanguages
        }
        let vc: KMAILanguagePopVC = KMAILanguagePopVC().initWithPopViewDataArr(languages)
        let createFilePopover: NSPopover = NSPopover.init()
        self.popover = createFilePopover
        createFilePopover.contentViewController = vc
        createFilePopover.animates = true
        createFilePopover.behavior = .semitransient
        createFilePopover.setValue(true, forKey: "shouldHideAnchor")
        if isFromLanguage {
            vc.selectString = self.fromLabel.stringValue
        } else {
            vc.selectString = self.toLabel.stringValue
        }

        vc.downCallback = { [unowned self] (language: String) -> Void in
            createFilePopover.close()
            if isFromLanguage {
                self.fromLabel.stringValue = language
                self.fromStr = self.languageAbbreviation(language)
            } else {
                self.toLabel.stringValue = language
                self.toStr = self.languageAbbreviation(language)
            }
        }

        if isFromLanguage {
            createFilePopover.show(relativeTo: CGRect(x: fromBox.bounds.origin.x, y: 10, width: fromBox.bounds.size.width, height: fromBox.bounds.size.height), of: fromBox, preferredEdge: .maxY)

            vc.customBoxWidthLayoutConstraint.constant = fromBox.frame.width
        } else {
            createFilePopover.show(relativeTo: CGRect(x: toBox.bounds.origin.x, y: 10, width: toBox.bounds.size.width, height: toBox.bounds.size.height), of: toBox, preferredEdge: .maxY)

            vc.customBoxWidthLayoutConstraint.constant = toBox.frame.width
        }
    }
    
    // MARK: Private Methods

    func showProgressWindow() {
        let progress = SKProgressController()
        progress.window?.backgroundColor = NSColor.km_init(hex: "#36383B")
        progress.window?.contentView?.wantsLayer = true
        progress.window?.contentView?.layer?.backgroundColor = NSColor.km_init(hex: "#36383B").cgColor
        progress.progressField.textColor = NSColor.white
        progress.message = NSLocalizedString("Translating...", comment: "")

        progress.closeBlock = { [weak self] in
            self?.hiddenProgressWindow()
        }
        
        self.progressController = progress
        self.window?.beginSheet(progress.window!)
    }
    
    func hiddenProgressWindow() {
        DispatchQueue.main.async {
            self.progressController?.doubleValue = 100.0
        }
        self.stopTimer()

        if (self.progressController != nil) {
            self.window?.endSheet((self.progressController?.window)!)
            self.progressController = nil
            KMRequestServer.requestServer.task?.cancel()
        }
    }
    
    func fileTranslateHandle(_ fileKey: String) -> Void {
        let infoDictionary = Bundle .main.infoDictionary!
        let majorVersion = infoDictionary["CFBundleShortVersionString"]

        KMRequestServerManager.manager.aiTranslationFileTranslateHandle(fileKey: fileKey, from: self.fromStr, to: self.toStr, version: majorVersion as! String) { success, result in
            if success {
                let result: NSDictionary = result!.result

                let fileUrl: String = result["fileUrl"] as! String
                let downFileUrl: String = result["downFileUrl"] as! String
                let ossDownUrl: String = result["ossDownUrl"] as! String
                let fileName: String = result["fileName"] as! String
                let downFileName: String = result["downFileName"] as! String
                let from: String = result["from"] as! String
                let to: String = result["to"] as! String
                
                self.downloadFile(filePath: ossDownUrl, downFileName: downFileName)
            } else {
                let result: String = result!.message

                DispatchQueue.main.async {
                    self.hiddenProgressWindow()
                    
                    let alert = NSAlert()
                    alert.alertStyle = .critical
                    alert.messageText = result
                    alert.runModal()
                }
            }
        }
    }
    
    func downloadFile(filePath: String, downFileName: String) -> Void {
        guard let fileURL = URL(string: filePath) else {
            let alert = NSAlert()
            alert.alertStyle = .critical
            alert.messageText = NSLocalizedString("Invalid file link", comment: "")
            alert.runModal()

            return
        }
        
//        let filePathUrl = URL(fileURLWithPath: self.filePath)
//        let fileNameWithoutExtension = filePathUrl.deletingPathExtension().lastPathComponent
//        let fileExtension = filePathUrl.pathExtension
//        let newFileName = fileNameWithoutExtension + "_aiTranslation" + "." + fileExtension
//        let destinationURL = filePathUrl.deletingLastPathComponent().appendingPathComponent(newFileName)
        
        if FileManager.default.fileExists(atPath: self.saveFileUrl.path) {
            do {
                try FileManager.default.removeItem(at: self.saveFileUrl)
                KMPrint("删除旧文件成功")
            } catch {
                KMPrint("删除旧文件失败：\(error)")
            }
        }
        let sessionConfiguration = URLSessionConfiguration.default
        let session = URLSession(configuration: sessionConfiguration)
        let downloadTask = session.downloadTask(with: fileURL) { (tempLocalURL, response, error) in
            if let error = error {
                let alert = NSAlert()
                alert.alertStyle = .critical
                alert.messageText = String(format: "%@:\(error)", NSLocalizedString("Download failed", comment: ""))
                alert.runModal()
                
                return
            }

            guard let tempLocalURL = tempLocalURL else {
                let alert = NSAlert()
                alert.alertStyle = .critical
                alert.messageText = NSLocalizedString("Invalid temporary directory", comment: "")
                alert.runModal()

                return
            }
            
            DispatchQueue.main.async {
                self.hiddenProgressWindow()
//                NSApp.mainWindow!.endSheet(self.window!)
                self.window?.orderOut(self)
            }

            do {
                try FileManager.default.moveItem(at: tempLocalURL, to: self.saveFileUrl)

                NSDocumentController.shared.openDocument(withContentsOf: self.saveFileUrl, display: true) { document, documentWasAlreadyOpen, error in
                    if error != nil {
                        NSApp.presentError(error!)
                    } else {

                    }
                }
            } catch {
                let alert = NSAlert()
                alert.alertStyle = .critical
                alert.messageText = String(format: "%@:\(error)", NSLocalizedString("Failed to save file", comment: ""))
                alert.runModal()
            }
        }
        downloadTask.resume()
    }
    
    func languageAbbreviation(_ language: String) -> String {
        if language == "Automatic" {
            return "auto"
        } else if language == "English" {
            return "en"
        } else if language == "Simplified Chinese" {
            return "zh"
        } else if language == "Traditional Chinese" {
            return "cht"
        } else if language == "Japanese" {
            return "jp"
        } else if language == "Korean" {
            return "kor"
        } else if language == "French" {
            return "fra"
        } else if language == "Spanish" {
            return "spa"
        } else if language == "Italian" {
            return "it"
        } else if language == "German" {
            return "de"
        } else if language == "Portuguese" {
            return "pt"
        } else if language == "Russian" {
            return "ru"
        } else if language == "Vietnamese" {
            return "vie"
        } else if language == "Thai" {
            return "th"
        } else if language == "Arabic" {
            return "ara"
        } else if language == "Greek" {
            return "el"
        } else if language == "Bulgarian" {
            return "bul"
        } else if language == "Finnish" {
            return "fin"
        } else if language == "Slovene" {
            return "slo"
        } else if language == "Dutch" {
            return "nl"
        } else if language == "Czech" {
            return "cs"
        } else if language == "Swedish" {
            return "swe"
        } else if language == "Polish" {
            return "pl"
        } else if language == "Danish" {
            return "dan"
        } else if language == "Romanian" {
            return "rom"
        } else if language == "Hungarian" {
            return "hu"
        }
        return "auto"
    }

    @objc func timerTick() {
        timerCounter += 1.0
        self.progressController?.increment(by: 1.0)
        
        if timerCounter >= 95 {
            stopTimer()
        }
    }
    
    func stopTimer() {
        timer?.invalidate()
        timer = nil
    }
}