//
//  KMNPDFInsertPDFWindowController.swift
//  PDF Reader Pro
//
//  Created by 丁林圭 on 2024/10/22.
//

import Cocoa

import KMComponentLibrary

class KMNPDFInsertPDFWindowController: KMNBaseWindowController {
    @IBOutlet var titleLabel: NSTextField!

    @IBOutlet var fileLabel: NSTextField!
    @IBOutlet var fileNameInput: ComponentInput!
    @IBOutlet var selectFileInput: ComponentInputAddon!
    @IBOutlet var pageRangeLabel: NSTextField!
    @IBOutlet var pageRangeSelect: ComponentSelect!
    
    @IBOutlet var positionLabel: NSTextField!
    @IBOutlet var firstRadioButton: ComponentRadio!
    @IBOutlet var lastRadioButton: ComponentRadio!
    @IBOutlet var pageRadioButton: ComponentRadio!
    @IBOutlet var pageNumInput: ComponentInputNumber!
    @IBOutlet var pageCountLabel: NSTextField!
    @IBOutlet var positionSelect: ComponentSelect!

    @IBOutlet var cancelButton: ComponentButton!
    @IBOutlet var insertButton: ComponentButton!

    @IBOutlet var cancelWidthButton:NSLayoutConstraint!
    @IBOutlet var insertWidthButton:NSLayoutConstraint!
    @IBOutlet var pageRadioWidthButton:NSLayoutConstraint!
    
    private var orgDocument:CPDFDocument?
    private var insertFilePath:String?
    private var insertPDFPassword:String?
    private var insertDocument:CPDFDocument?
    private var selectionIndexPaths:Set<IndexPath>?
    
    var pdfCallback: ((KMNFileAttribute, Int) -> Void)?
    
    var fileCallback: ((String, Int) -> Void)?
    
    convenience init(_ document: CPDFDocument?, selectionIndexPaths: Set<IndexPath>?) {
        self.init(windowNibName: "KMNPDFInsertPDFWindowController")
        orgDocument = document
        self.selectionIndexPaths = selectionIndexPaths

    }
    convenience init(_ document: CPDFDocument?,filePath: String,password:String?,selectionIndexPaths: Set<IndexPath>?) {
        self.init(windowNibName: "KMNPDFInsertPDFWindowController")
        orgDocument = document
        insertPDFPassword = password
        insertFilePath = filePath
        self.selectionIndexPaths = selectionIndexPaths
    }
    
    override func windowDidLoad() {
        super.windowDidLoad()
        
        if insertFilePath?.isEmpty == false && insertFilePath?.pathExtension == "pdf" {
            insertDocument = CPDFDocument(url: NSURL.fileURL(withPath: insertFilePath ?? ""))
            if let data = insertDocument?.isLocked, data {
               insertDocument?.unlock(withPassword: insertPDFPassword)
            }
        }
    }
    
    override func beginSheetFinish() {
        super.beginSheetFinish()
        
        pageCountLabel.stringValue = "/" + String(format: "%d", orgDocument?.pageCount ?? 0)
        
        pageRangeSelect.selectItemAtIndex(0)
        positionSelect.selectItemAtIndex(0)
        
        if(selectionIndexPaths?.count ?? 0 > 0) {
            pageRadioButton.properties.checkboxType = .selected

            let maxmumIndexPath = selectionIndexPaths?.max(by: { $0 < $1 })
            pageNumInput.properties.text = String((maxmumIndexPath?.item ?? 0)+1)
            
            pageRadioButton.reloadData()
            pageNumInput.reloadData()
        } else {
            firstRadioButton.properties.checkboxType = .selected
            pageRadioButton.properties.checkboxType = .normal
            
            positionSelect.properties.isDisabled = true
            pageNumInput.properties.isDisabled = true
            
            firstRadioButton.reloadData()
            pageRadioButton.reloadData()
            pageNumInput.reloadData()
            positionSelect.reloadData()
        }
        
        self.updateInsertPDF()
    }
    
    private func setUpPageSelctProperty() {
        var menuItemString:[String] = [KMLocalizedString("All Pages"),
                                    KMLocalizedString("Odd Pages Only"),
                                    KMLocalizedString("Even Pages Only"),
                                    KMLocalizedString("e.g. 1,3-5,10")]
        if insertDocument?.pageCount ?? 0 <= 1 {
            menuItemString.removeObject(KMLocalizedString("Even Pages Only"))
        }
        var menuItemArr: [ComponentMenuitemProperty] = []
        for language in menuItemString {
            let itemProperty: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false,
                                                                                    itemSelected: false,
                                                                                    isDisabled: false,
                                                                                    keyEquivalent: nil,
                                                                                    text: language)
            menuItemArr.append(itemProperty)
        }

        
        pageRangeSelect.updateMenuItemsArr(menuItemArr)
    }
    
    private func setUpPositionSelctProperty() {
        var menuItemArr: [ComponentMenuitemProperty] = []
        for language in [KMLocalizedString("After"),KMLocalizedString("Before")] {
            let itemProperty: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false,
                                                                                    itemSelected: false,
                                                                                    isDisabled: false,
                                                                                    keyEquivalent: nil,
                                                                                    text: language)
            menuItemArr.append(itemProperty)
        }
        
        positionSelect.updateMenuItemsArr(menuItemArr)
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        window?.contentView?.wantsLayer = true
        window?.contentView?.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBorder/popUp").cgColor
        
        titleLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/1")
        fileLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        pageRangeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("comp-field/colorText-filled-nor")
        
        positionLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")

        firstRadioButton.reloadData()
        lastRadioButton.reloadData()
        pageRadioButton.reloadData()
        
        insertButton.reloadData()
        cancelButton.reloadData()
        
        selectFileInput.reloadData()
        pageRangeSelect.reloadData()
        positionSelect.reloadData()
    }
    
    override func updateUILanguage() {
        super.updateUILanguage()
        
        titleLabel.stringValue = KMLocalizedString("Insert File")
        fileLabel.stringValue = KMLocalizedString("From PDF")
        pageRangeLabel.stringValue = KMLocalizedString("Page Range:")

        positionLabel.stringValue = KMLocalizedString("Where to insert?")
        
        firstRadioButton.properties.text = KMLocalizedString("First")
        lastRadioButton.properties.text = KMLocalizedString("Last")
        pageRadioButton.properties.text = KMLocalizedString("Page")
        
        firstRadioButton.reloadData()
        lastRadioButton.reloadData()
        pageRadioButton.reloadData()

        insertButton.properties.buttonText = KMLocalizedString("Insert")
        cancelButton.properties.buttonText = KMLocalizedString("Cancel")
        
        insertButton.reloadData()
        cancelButton.reloadData()
        
        selectFileInput.properties.text = KMLocalizedString("Browse")
        selectFileInput.reloadData()
        
        setUpPageSelctProperty()
        setUpPositionSelctProperty()
        
        let pageRangeSelectIndex = pageRangeSelect.indexOfSelect()
    
        if pageRangeSelectIndex == 0 {
            pageRangeSelect.properties.text = KMLocalizedString("All Pages")
        } else if(pageRangeSelectIndex == 1) {
            pageRangeSelect.properties.text = KMLocalizedString("Odd Pages Only")
        } else {
            if(orgDocument?.pageCount ?? 0 > 1 && pageRangeSelectIndex == 2) {
                pageRangeSelect.properties.text = KMLocalizedString("Even Pages Only")
            }
        }
        
        let positionSelectIndex = positionSelect.indexOfSelect()
        if positionSelectIndex == 0 {
            positionSelect.properties.text = KMLocalizedString("After")
        } else {
            positionSelect.properties.text = KMLocalizedString("Before")
        }

        pageRangeSelect.reloadData()
        positionSelect.reloadData()
        
        pageRadioWidthButton.constant = pageRadioButton.properties.propertyInfo.viewWidth
        cancelWidthButton.constant = cancelButton.properties.propertyInfo.viewWidth
        insertWidthButton.constant = insertButton.properties.propertyInfo.viewWidth
    }
    
    override func initContentView() {
        super.initContentView()
        titleLabel.font =  ComponentLibrary.shared.getFontFromKey("mac/body-m-medium")
        
        fileLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-medium")
        
        pageRangeLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-regular")
        
        positionLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-medium")
        
        firstRadioButton.properties = ComponentCheckBoxProperty(size: .s,
                                                                state: .normal,
                                                                isDisabled: false,
                                                                showhelp: false,
                                                                text: KMLocalizedString("First"),
                                                                checkboxType: .normal)
        lastRadioButton.properties = ComponentCheckBoxProperty(size: .s,
                                                                state: .normal,
                                                                isDisabled: false,
                                                                showhelp: false,
                                                                text: KMLocalizedString("Last"),
                                                                checkboxType: .normal)
        
        pageRadioButton.properties = ComponentCheckBoxProperty(size: .s,
                                                                state: .normal,
                                                                isDisabled: false,
                                                                showhelp: false,
                                                                text: KMLocalizedString("Page"),
                                                                checkboxType: .normal)
        
        insertButton.properties = ComponentButtonProperty(type: .primary,
                                                          size: .s,
                                                          state: .normal,
                                                          isDisable: true,
                                                          buttonText: KMLocalizedString("Insert"))
        insertButton.setTarget(self, action: #selector(insertButtonClicked(_ :)))
        insertWidthButton.constant = insertButton.properties.propertyInfo.viewWidth
        
        cancelButton.properties = ComponentButtonProperty(type: .default_tertiary,
                                                          size: .s,
                                                          state: .normal,
                                                          buttonText: KMLocalizedString("Cancel"))
        cancelButton.setTarget(self, action: #selector(cancelButtonClicked(_ :)))
        cancelWidthButton.constant = cancelButton.properties.propertyInfo.viewWidth
        
        firstRadioButton.setTarget(self, action: #selector(insertPositionAction(_:)))
        lastRadioButton.setTarget(self, action: #selector(insertPositionAction(_:)))
        pageRadioButton.setTarget(self, action: #selector(insertPositionAction(_:)))

        pageNumInput.properties = ComponentInputNumberProperty(alignment: .left,
                                                                          size: .s,
                                                                          state: .normal,
                                                                          isError: false,
                                                                          showErrorInfo: false,
                                                                          isDisabled: false,
                                                                          showPrefix: false,
                                                                          showSuffix: false,
                                                                          minSize: 1,
                                                                          maxSize: Int(orgDocument?.pageCount ?? 1),
                                                                          text: "")
        pageNumInput.delegate = self
        
        let inputWithAddonProperty = ComponentInputProperty(size: .s,
                                                            state: .normal,
                                                            isError: false,
                                                            showPrefix: false,
                                                            showSuffix: false,
                                                            showClear: false,
                                                            isDisabled: false,
                                                            placeholder: KMLocalizedString("Please enter..."),
                                                            text: "",
                                                            creatable: false)
        fileNameInput.properties = inputWithAddonProperty
        fileNameInput.properties.propertyInfo.cornerRadius_topRight = 0
        fileNameInput.properties.propertyInfo.cornerRadius_bottomRight = 0
        fileNameInput.reloadData()

        selectFileInput.properties = ComponentInputAddonProperty(size: .s,
                                                                state: .normal,
                                                                addOnBefore: false,
                                                                onlyRead: false,
                                                                addonType: .textWithColor,
                                                                 text: KMLocalizedString("Browse"))
        
        selectFileInput.setTarget(self, action: #selector(chooseURLAction(_ :)))
                
        pageRangeSelect.properties = ComponentSelectProperties(size: .s,
                                                                state: .normal,
                                                                isDisabled: true,
                                                                isError: false,
                                                                leftIcon: false,
                                                                placeholder: nil,
                                                                errorText: nil,
                                                                creatable: false,
                                                                text: KMLocalizedString("All Pages", comment: ""))
        
        positionSelect.properties = ComponentSelectProperties(size: .s,
                                                                state: .normal,
                                                                isDisabled: false,
                                                                isError: false,
                                                                leftIcon: false,
                                                                placeholder: nil,
                                                                errorText: nil,
                                                                creatable: false,
                                                                text: KMLocalizedString("After", comment: ""))

        setUpPositionSelctProperty()
        setUpPageSelctProperty()
        
        positionSelect.delegate = self
        pageRangeSelect.delegate = self
        
        pageRadioWidthButton.constant = pageRadioButton.properties.propertyInfo.viewWidth
        cancelWidthButton.constant = cancelButton.properties.propertyInfo.viewWidth
        insertWidthButton.constant = insertButton.properties.propertyInfo.viewWidth
    }
    
    private func updateInsertPDF() {
        fileNameInput.properties.text = insertFilePath ?? ""
        fileNameInput.reloadData()
        window?.makeFirstResponder(self)
        
        if(insertDocument != nil) {
            pageRangeSelect.properties.isDisabled = false
            pageRangeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("comp-field/colorText-filled-nor")
            setUpPageSelctProperty()
            pageRangeSelect.selectItemAtIndex(0)
            pageRangeSelect.reloadData()
        } else {
            pageRangeSelect.properties.isDisabled = true
            pageRangeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("comp-field/colorText-filled-dis")
            pageRangeSelect.selectItemAtIndex(0)
            pageRangeSelect.reloadData()
        }
        
        if(insertFilePath?.isEmpty == false) {
            if insertButton.properties.isDisabled == true {
                insertButton.properties.isDisabled = false
                insertButton.reloadData()
            }
        }
    }
                                                            
    //MARK: - Action
    @objc func cancelButtonClicked(_ sender: NSView) {
        own_closeEndSheet()
    }
    
    @objc func insertButtonClicked(_ sender: NSView) {
        var insetPageDex:Int = 0
        if firstRadioButton.properties.checkboxType == .selected {
            insetPageDex = 0
        } else if lastRadioButton.properties.checkboxType == .selected {
            insetPageDex = Int(orgDocument?.pageCount ?? 0)
        } else if pageRadioButton.properties.checkboxType == .selected {
            insetPageDex = Int(pageNumInput.properties.text ?? "0") ?? 0
            let positionSelectIndex = positionSelect.indexOfSelect()
            if (1 == positionSelectIndex) {
                insetPageDex -= 1
            }
        }

        if(insertDocument != nil) {
            let pageRangeSelectIndex = pageRangeSelect.indexOfSelect()
            
            let fileAttribute = KMNFileAttribute()
            fileAttribute.pdfDocument = insertDocument
            fileAttribute.password = insertDocument?.password ?? ""
            fileAttribute.filePath =  insertDocument?.documentURL.path ?? ""
            
            if pageRangeSelectIndex == 0  {
                fileAttribute.bAllPage = true
                fileAttribute.pagesType = .AllPages
            } else if pageRangeSelectIndex == 1 {
                fileAttribute.bAllPage = false
                fileAttribute.pagesType = .OnlyOdd
            } else {
                if(insertDocument?.pageCount ?? 0 <= 1) {
                    fileAttribute.bAllPage = false
                    fileAttribute.pagesType = .PagesString
                    fileAttribute.pagesString = pageRangeSelect.properties.text ?? ""
                } else {
                    fileAttribute.bAllPage = false
                    if(pageRangeSelectIndex == 2) {
                        fileAttribute.pagesType = .OnlyEven
                    } else {
                        fileAttribute.bAllPage = false
                        fileAttribute.pagesType = .PagesString
                        fileAttribute.pagesString = pageRangeSelect.properties.text ?? ""
                    }
                }
            }
            
            if (fileAttribute.fetchSelectPages().isEmpty) {
                let alert = NSAlert()
                alert.alertStyle = .critical
                alert.messageText = String(format: "%@ %@", fileAttribute.filePath.lastPathComponent, KMLocalizedString("Invalid page range or the page number is out of range. Please try again."))
                alert.runModal()
                return
            }
            
            pdfCallback?(fileAttribute,insetPageDex)
        } else {
            fileCallback?(insertFilePath ?? "",insetPageDex)
        }
                
        own_closeEndSheet()
    }
    
    @objc func insertPositionAction(_ sender: NSView) {
        var oldSelectRadioBtn:ComponentRadio?  = nil
        if sender == lastRadioButton {
            if(firstRadioButton.properties.checkboxType == .selected) {
                oldSelectRadioBtn = firstRadioButton
            } else if (pageRadioButton.properties.checkboxType == .selected){
                oldSelectRadioBtn = pageRadioButton
                
                pageNumInput.properties.isDisabled = true
                positionSelect.properties.isDisabled = true
                pageNumInput.reloadData()
                positionSelect.reloadData()
            }
        } else if sender == firstRadioButton {
            if(lastRadioButton.properties.checkboxType == .selected) {
                oldSelectRadioBtn = lastRadioButton
            } else if (pageRadioButton.properties.checkboxType == .selected){
                oldSelectRadioBtn = pageRadioButton
                
                pageNumInput.properties.isDisabled = true
                positionSelect.properties.isDisabled = true
                pageNumInput.reloadData()
                positionSelect.reloadData()
            }
        } else if sender == pageRadioButton {
            if(lastRadioButton.properties.checkboxType == .selected) {
                oldSelectRadioBtn = lastRadioButton
            } else if (firstRadioButton.properties.checkboxType == .selected){
                oldSelectRadioBtn = firstRadioButton
            }
            
            pageNumInput.properties.isDisabled = false
            positionSelect.properties.isDisabled = false
            pageNumInput.reloadData()
            positionSelect.reloadData()
        }
        
        if(oldSelectRadioBtn != nil) {
            oldSelectRadioBtn?.properties.checkboxType = .normal
            oldSelectRadioBtn?.reloadData()
        }
    }
    
    @objc func chooseURLAction(_ sender: NSView) {
        let openPanel = NSOpenPanel()
        let supportFiles = KMNConvertTool.pdfExtensions + KMConvertPDFManager.supportFileType()

        openPanel.allowedFileTypes = supportFiles
        openPanel.allowsMultipleSelection = false
        openPanel.beginSheetModal(for: self.window!) { [self] result in
            if (result == .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.window?.windowController?.showCheckPassword(url: fileURL ?? NSURL.fileURL(withPath: ""), type: .owner, completion: { [weak self] success, resultPassword in
                                if success && resultPassword.isEmpty == false {
                                    self?.insertDocument = CPDFDocument(url: fileURL)
                                    if let data = self?.insertDocument?.isLocked, data {
                                        self?.insertDocument?.unlock(withPassword: resultPassword)
                                    }
                                    self?.insertFilePath = fileURL?.path
                                    self?.updateInsertPDF()
                                }
                            })
                        }
                    } else {
                        self.insertDocument = CPDFDocument(url: fileURL)
                        self.insertFilePath = fileURL?.path
                        self.updateInsertPDF()
                    }
                } else {
                    self.insertDocument = nil
                    self.insertFilePath = fileURL?.path
                    self.updateInsertPDF()
                }
            }
        }
    }
}

//MARK: - ComponentInputNumberDelegate
extension KMNPDFInsertPDFWindowController: ComponentInputNumberDelegate {
    func componentInputNumberDidValueChanged(inputNumber: ComponentInputNumber?) {
        if(inputNumber == pageNumInput) {
            
        }
    }
}

//MARK: - ComponentSelectDelegate
extension KMNPDFInsertPDFWindowController: ComponentSelectDelegate {
    func componentSelectDidSelect(view: ComponentSelect?, menuItemProperty: ComponentMenuitemProperty?) {
        if(view == pageRangeSelect) {
            let pageRangeSelectIndex = pageRangeSelect.indexOfSelect()
            var isEditIndex:Int = 3
            
            if(insertDocument?.pageCount ?? 0 <= 1) {
                isEditIndex = 2
            }
            if (pageRangeSelectIndex == isEditIndex) {
                pageRangeSelect.properties.text = ""

                pageRangeSelect.properties.placeholder = KMLocalizedString("e.g. 1,3-5,10")
                pageRangeSelect.properties.creatable = true
            } else {
                pageRangeSelect.properties.placeholder = ""
                pageRangeSelect.properties.creatable = false
            }
            pageRangeSelect.reloadData()
            
        }
    }
}