//
//  KMAITranslationWindowController.swift
//  PDF Reader Pro
//
//  Created by wanjun on 2023/5/24.
//

import Cocoa

@objc enum KMAITranslationState: Int {
    case None = 0
    case CanTranslate
    case CanAIRewriting
    case CanAIErrorCorrection
    case CanCopy
    case Copyed
    case Exceed
    case Error
}

class KMAITranslationWindowController: NSWindowController {

    @IBOutlet weak var closeButton: NSButton!
    @IBOutlet weak var aiTranslationTitleLabel: NSTextField!
    @IBOutlet weak var tipsButton: NSButton!
    @IBOutlet weak var translationLanguage: NSTextField!
    @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 fromContentBox: NSBox!
    @IBOutlet weak var fromContentTextField: NSTextField!
    @IBOutlet weak var fromContentLabel: NSTextField!
    @IBOutlet weak var toContentBox: NSBox!
    @IBOutlet weak var toContentTextView: NSTextView!
    
    @IBOutlet weak var translateBox: KMBox!
    @IBOutlet weak var translateLabel: NSTextField!
    @IBOutlet weak var translateButton: NSButton!

    @IBOutlet weak var copyBox: KMBox!
    @IBOutlet weak var copyLabel: NSTextField!
    @IBOutlet weak var copyButton: NSButton!
    
    @IBOutlet weak var errorView: NSView!
    @IBOutlet weak var errorImageView: NSImageView!
    @IBOutlet weak var errorLabel: NSTextField!
    
    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 content: String = ""
    
    var popover: NSPopover?
    var popoverTips: NSPopover?
    var _state: KMAITranslationState = .None
    var progressController: SKProgressController?

    override func windowDidLoad() {
        super.windowDidLoad()
        
        self.window?.backgroundColor = .white
        
        self.initLocalization()
        self.initializeUI()
    }
    
    // MARK: initialize
    
    func initializeUI() -> Void {
        self.aiTranslationTitleLabel.textColor = NSColor.km_init(hex: "#252629")
        self.aiTranslationTitleLabel.font = NSFont.SFProTextSemiboldFont(16.0)
        self.translationLanguage.textColor = NSColor.km_init(hex: "#252629")
        self.translationLanguage.font = NSFont.SFProTextRegularFont(14.0)
        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.fromContentBox.borderColor = NSColor.km_init(hex: "#1770F4")
        self.fromContentBox.fillColor = NSColor.km_init(hex: "#FFFFFF")
        self.fromContentTextField.textColor = NSColor.km_init(hex: "#252629")
        self.fromContentTextField.font = NSFont.SFProTextRegularFont(12.0)
        self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
        self.fromContentLabel.font = NSFont.SFProTextRegularFont(12.0)

        self.toContentBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
        self.toContentBox.fillColor = NSColor.km_init(hex: "#FFFFFF")
        self.toContentTextView.textColor = .black
        self.toContentTextView.font = NSFont.SFProTextRegularFont(12.0)
        
        self.translateBox.fillColor = NSColor.km_init(hex: "#BDDFFD")
        self.translateBox.cornerRadius = 4.0
        self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
        self.translateLabel.font = NSFont.SFProTextRegularFont(12.0)
        
        self.copyBox.fillColor = NSColor.km_init(hex: "#EDEEF0")
        self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
        self.copyBox.borderWidth = 1.0
        self.copyBox.cornerRadius = 4.0
        self.copyLabel.textColor = NSColor.km_init(hex: "#F7F8FA")
        self.copyLabel.font = NSFont.SFProTextRegularFont(12.0)
        
        self.errorView.isHidden = true
        self.errorImageView.image = NSImage(named: "icon_error")
        self.errorLabel.textColor = NSColor.km_init(hex: "#F3465B")
        self.errorLabel.font = NSFont.SFProTextRegularFont(12.0)
        
        if self.content.count > 0 {
            self.fromContentTextField.stringValue = self.content
            
            if self.content.count > 150 {
                self.state = .Exceed
            } else {
                self.state = .CanTranslate
            }
        }
    }
    
    func initLocalization() -> Void {
        self.aiTranslationTitleLabel.stringValue = "AI Translation"
        self.translationLanguage.stringValue = "Translation Language:"
        self.translateLabel.stringValue = "Translate"
        self.copyLabel.stringValue = "Copy"
        
        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.fromContentLabel.stringValue = NSLocalizedString("0/150", comment: "")
    }
    
    override func mouseDown(with event: NSEvent) {
        if self.popover != nil {
            self.popover?.close()
            self.popover = nil
        }
        if self.popoverTips != nil {
            self.popoverTips?.close()
            self.popoverTips = nil
        }
    }
    
    // MARK: Get、Set
    
    var state: KMAITranslationState {
        get {
            return _state
        }
        set {
            _state = newValue
            
            self.refreshAIUI()
        }
    }
    
    // MARK: Private Methods

    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"
    }
    
    func refreshAIUI() -> Void {
        self.fromContentLabel.stringValue = String(format: "%d/150", self.fromContentTextField.stringValue.count)
        self.copyLabel.stringValue = NSLocalizedString("Copy", comment: "")

        if self.state == .CanTranslate {
            self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
            self.translateBox.fillColor = NSColor.km_init(hex: "#1770F4")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.fillColor = NSColor.km_init(hex: "#EDEEF0")
            self.copyBox.borderWidth = 1.0
            self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
            self.copyLabel.textColor = NSColor.km_init(hex: "#B1B3B8")
            self.errorView.isHidden = true
        } else if self.state == .CanCopy {
            self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
            self.translateBox.fillColor = NSColor.km_init(hex: "#1770F4")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.fillColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.borderWidth = 1.0
            self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
            self.copyLabel.textColor = NSColor.km_init(hex: "#252629")
            self.errorView.isHidden = true
        } else if self.state == .Copyed {
            self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
            self.translateBox.fillColor = NSColor.km_init(hex: "#1770F4")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.fillColor = NSColor.km_init(hex: "#36383B")
            self.copyBox.borderWidth = 0.0
            self.copyLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyLabel.stringValue = NSLocalizedString("Copied", comment: "")
            self.errorView.isHidden = true
        } else if self.state == .Exceed { // 是否超过
            self.fromContentLabel.textColor = NSColor.km_init(hex: "#F3465B")
            self.translateBox.fillColor = NSColor.km_init(hex: "#1770F4")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.fillColor = NSColor.km_init(hex: "#EDEEF0")
            self.copyBox.borderWidth = 1.0
            self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
            self.copyLabel.textColor = NSColor.km_init(hex: "#B1B3B8")
            self.errorView.isHidden = true
        } else if self.state == .Error {
            if self.fromContentTextField.stringValue.count > 150 {
                self.fromContentLabel.textColor = NSColor.km_init(hex: "#F3465B")
            } else {
                self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
            }
            self.translateBox.fillColor = NSColor.km_init(hex: "#1770F4")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#FFFFFF")
            self.copyBox.fillColor = NSColor.km_init(hex: "#EDEEF0")
            self.copyBox.borderWidth = 1.0
            self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
            self.copyLabel.textColor = NSColor.km_init(hex: "#B1B3B8")
            self.errorView.isHidden = false
        } else {
            self.fromContentLabel.textColor = NSColor.km_init(hex: "#94989C")
            self.translateBox.fillColor = NSColor.km_init(hex: "#BDDFFD")
            self.translateBox.borderWidth = 0.0
            self.translateLabel.textColor = NSColor.km_init(hex: "#F7F8FA")
            self.copyBox.fillColor = NSColor.km_init(hex: "#EDEEF0")
            self.copyBox.borderWidth = 1.0
            self.copyBox.borderColor = NSColor.km_init(hex: "#DFE1E5")
            self.copyLabel.textColor = NSColor.km_init(hex: "#B1B3B8")
            self.errorView.isHidden = true
        }
    }
    
    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() {
        if (self.progressController != nil) {
            self.window?.endSheet((self.progressController?.window)!)
            self.progressController = nil
            KMRequestServer.requestServer.task?.cancel()
        }
    }
    
    // MARK: Action
    
    @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)
            }
            
            self.toContentTextView.string = ""
            if self.fromContentTextField.stringValue.count > 0 {
                if self.fromContentTextField.stringValue.count > 150 {
                    self.state = .Exceed
                } else {
                    self.state = .CanTranslate
                }
            } else {
                self.state = .None
            }
        }

        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
        }
    }
    
    @IBAction func aiTranslationAction(_ sender: NSButton) {
        if self.state == .CanTranslate || self.state == .CanCopy || self.state == .Copyed || self.state == .Exceed || self.state == .Error {
            if !KMLightMemberManager.manager.isLogin() {
                KMLoginWindowController.show(window: NSApp.mainWindow!)
                return
            }
            self._aiTranslationAction(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._aiTranslationAction(sender)
//                            return
//                        }
//                    }
//                    return
//                }
//                self._aiTranslationAction(sender)
//            }
        }
    }
    
    private func _aiTranslationAction(_ sender: NSButton) {
        DispatchQueue.main.async {
            self.showProgressWindow()
        }

        self.errorView.isHidden = true
        self.toContentTextView.string = ""
        
        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.aiTranslationTextTrans(q: self.fromContentTextField.stringValue, from: self.fromStr, to: self.toStr, version: majorVersion as! String) { [unowned self] success, result in
            DispatchQueue.main.async {
                self.hiddenProgressWindow()
            }

            if success {
                let result: NSDictionary = result!.result

//                let form: String = result["form"] as! String
//                let to: String = result["to"] as! String
//                let src: String = result["src"] as! String
                let dst: String = result["dst"] as! String
                
                DispatchQueue.main.async {
                    self.state = .CanCopy
                    
                    self.toContentTextView.string = dst
                }
            } else {
                let result: String = result!.message
                
                DispatchQueue.main.async {
                    self.errorLabel.stringValue = result
                    self.state = .Error
                    self.toContentTextView.string = ""
                }
            }
        }
    }
    
    @IBAction func copyAction(_ sender: NSButton) {
        if self.state == .CanCopy || self.state == .Copyed {
            if !KMLightMemberManager.manager.isLogin() {
                KMLoginWindowController.show(window: NSApp.mainWindow!)

                return
            }
            self._copyAction(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._copyAction(sender)
//                            return
//                        }
//                    }
//                    return
//                }
//
//                self._copyAction(sender)
//            }
            
        }
    }
    
    private func _copyAction(_ sender: NSButton) {
        let pasteboard = NSPasteboard.general
        pasteboard.clearContents()
        pasteboard.setString(self.toContentTextView.string, forType: .string)
        
        self.state = .Copyed
    }
    
    @IBAction func closeButtonAction(_ sender: NSButton) {
        if self.popover != nil {
            self.popover?.close()
            self.popover = nil
        }
        if self.popoverTips != nil {
            self.popoverTips?.close()
            self.popoverTips = nil
        }

        self.window?.close()
    }
    
    @IBAction func tipsButtonAction(_ sender: NSButton) {
        if (self.popoverTips != nil) {
            self.popoverTips?.close()
            self.popoverTips = nil
            return
        }
        let pop: NSPopover = NSPopover.init()
        self.popoverTips = pop
        let controller = KMSignatureHelpViewController.init()
        pop.contentViewController = controller
        controller.tipString = NSLocalizedString("Limit document size to 10M, document page number to 30, 10w characters per month.", comment: "")
        pop.setValue(true, forKey: "shouldHideAnchor")
        pop.show(relativeTo: NSRect(x: 0, y: -8, width: NSWidth(sender.bounds), height: NSHeight(sender.bounds)), of: sender, preferredEdge: .maxX)
    }
}

extension KMAITranslationWindowController: NSTextFieldDelegate {
    func controlTextDidEndEditing(_ obj: Notification) {
        _ = obj.object as! NSTextField
        
        
    }
    
    func controlTextDidChange(_ obj: Notification) {
        let object = obj.object as! NSTextField
        
        if object.stringValue.count > 0 {
            self.state = .CanTranslate
        } else {
            self.state = .None
        }
        
        if object.stringValue.count > 150 {
            self.state = .Exceed
        }
        
        self.toContentTextView.string = ""
    }

}