//
//  KMOutlineEditViewController.swift
//  PDF Reader Pro
//
//  Created by lxy on 2022/11/9.
//

import Cocoa
import KMComponentLibrary

class KMOutlineEditViewController: KMNBaseViewController {
    @IBOutlet var outlineNameTextView: NSTextView!
    @IBOutlet weak var outlineNameLabel: NSTextField!
    @IBOutlet weak var outlineTargetPageIndexTextField: NSTextField!
    @IBOutlet weak var pageButton: NSButton!
    @IBOutlet weak var totalPageCountLabel: NSTextField!
    @IBOutlet weak var outlineURLTextField: NSTextField!
    @IBOutlet weak var urlButton: NSButton!
    @IBOutlet weak var mailAddressTextField: NSTextField!
    @IBOutlet weak var mailButton: NSButton!
    
    @IBOutlet weak var inputScrollView: NSScrollView!
    @IBOutlet weak var pageBox: NSBox!
    @IBOutlet weak var webBox: NSBox!
    @IBOutlet weak var emailBox: NSBox!
    @IBOutlet weak var bottomBox: NSBox!
    @IBOutlet weak var leftButtonBox: NSBox!
    @IBOutlet weak var rightButtonBox: NSBox!
    
    weak var outline : CPDFOutline?
    weak var pdfView : CPDFView?
    var originalURLString : String = ""
    weak var originalDestination : CPDFDestination?
    var originalPageIndex = -1
    var originalLabel : String = ""
    var currentPageIndex : Int = 0
    
    var pageCount = 0
    
    private lazy var inputView_: ComponentTextarea = {
        let view = ComponentTextarea()
        view.properties = ComponentTextareaProperty(size: .m, state: .pressed, isError: false, placeholderString: "", totalCount: -1, text: "", isDisabled: false)
        return view
    }()
    
    private lazy var pageRadio_: ComponentRadio = {
        let view = ComponentRadio()
        view.properties = ComponentCheckBoxProperty(size: .s, state: .normal,  isDisabled: false, showhelp: false, text: KMLocalizedString("Page:", comment: ""), checkboxType: .normal)
        return view
    }()
    
    private lazy var pageInput_: ComponentInputAddon = {
        let view = ComponentInputAddon()
        view.properties = ComponentInputAddonProperty(size: .s, state: .normal, isDisabled: false, addOnBefore: false, onlyRead: true, addonType: .textWithColor, iconImage: nil, text: KMLocalizedString("11"))
        return view
    }()
    
    private lazy var pageLabel: NSTextField = {
        let view = NSTextField(labelWithString: "")
        return view
    }()
    
    private lazy var webRadio_: ComponentRadio = {
        let view = ComponentRadio()
        view.properties = ComponentCheckBoxProperty(size: .s, state: .normal,  isDisabled: false, showhelp: false, text: KMLocalizedString("Webside:", comment: ""), checkboxType: .normal)
        return view
    }()
    
    private lazy var webInput_: ComponentInput = {
        let view = ComponentInput()
        view.properties = ComponentInputProperty(size: .s, placeholder: KMLocalizedString("http://www.pdfreaderpro.com"), text: "")
        return view
    }()
    
    private lazy var emailRadio_: ComponentRadio = {
        let view = ComponentRadio()
        view.properties = ComponentCheckBoxProperty(size: .s, state: .normal,  isDisabled: false, showhelp: false, text: KMLocalizedString("Email:", comment: ""), checkboxType: .normal)
        return view
    }()
    
    private lazy var emailInput_: ComponentInput = {
        let view = ComponentInput()
        view.properties = ComponentInputProperty(size: .s, placeholder: KMLocalizedString("support@pdfreaderpro.com"), text: "")
        return view
    }()
    
    private lazy var cancelButton_: ComponentButton = {
        let view = ComponentButton()
        view.properties = ComponentButtonProperty(type: .default_tertiary, size: .s, state: .normal, isDisable: false, onlyIcon: false, buttonText: KMLocalizedString("Cancel"), keepPressState: false)
        return view
    }()
    
    private lazy var okButton_: ComponentButton = {
        let view = ComponentButton()
        view.properties = ComponentButtonProperty(type: .primary, size: .s, state: .normal, isDisable: false, onlyIcon: false, buttonText: KMLocalizedString("Apply"), keepPressState: false)
        return view
    }()
    
    convenience init(outline: CPDFOutline?, document: CPDFView?) {
        self.init()
        
        self.outline = outline
        self.pdfView = document
    }
    
    override func loadView() {
        super.loadView()
        
        inputView_.frame = inputScrollView.contentView.bounds
        inputView_.autoresizingMask = [.width, .height]
        inputScrollView.documentView = inputView_
        
        pageButton.isHidden = true
        totalPageCountLabel.isHidden = true
        pageBox.borderWidth = 0
        pageBox.contentView?.addSubview(pageRadio_)
        pageBox.contentView?.addSubview(pageInput_)
        pageBox.contentView?.addSubview(pageLabel)
        pageRadio_.km_add_centerY_constraint()
        pageRadio_.km_add_leading_constraint()
        pageRadio_.km_add_width_constraint(constant: pageRadio_.properties.propertyInfo.viewWidth+8)
        pageRadio_.km_add_height_constraint(constant: 20)
        pageInput_.km_add_leading_constraint(equalTo: pageRadio_, attribute: .trailing, constant: 0)
        pageInput_.km_add_centerY_constraint()
        pageInput_.km_add_height_constraint(constant: 32)
        pageInput_.km_add_width_constraint(constant: 165)
        pageLabel.km_add_leading_constraint(equalTo: pageInput_, attribute: .trailing, constant: 8)
        pageLabel.km_add_centerY_constraint()
        pageLabel.stringValue = "/\(pageCount)"
        pageInput_.properties.text = "11"
        pageInput_.reloadData()
        
        urlButton.isHidden = true
        outlineURLTextField.isHidden = true
        webBox.borderWidth = 0
        webBox.contentView?.addSubview(webRadio_)
        webBox.contentView?.addSubview(webInput_)
        webRadio_.km_add_centerY_constraint()
        webRadio_.km_add_leading_constraint()
        webRadio_.km_add_width_constraint(constant: webRadio_.properties.propertyInfo.viewWidth+8)
        webRadio_.km_add_height_constraint(constant: 20)
        webInput_.km_add_leading_constraint(equalTo: webRadio_, attribute: .trailing, constant: 0)
        webInput_.km_add_centerY_constraint()
        webInput_.km_add_height_constraint(constant: 32)
        webInput_.km_add_trailing_constraint()
        
        mailButton.isHidden = true
        mailAddressTextField.isHidden = true
        emailBox.borderWidth = 0
        emailBox.contentView?.addSubview(emailRadio_)
        emailBox.contentView?.addSubview(emailInput_)
        emailRadio_.km_add_centerY_constraint()
        emailRadio_.km_add_leading_constraint()
        emailRadio_.km_add_width_constraint(constant: emailRadio_.properties.propertyInfo.viewWidth+8)
        emailRadio_.km_add_height_constraint(constant: 20)
        emailInput_.km_add_leading_constraint(equalTo: emailRadio_, attribute: .trailing, constant: 0)
        emailInput_.km_add_centerY_constraint()
        emailInput_.km_add_height_constraint(constant: 32)
        emailInput_.km_add_trailing_constraint()
        
        bottomBox.borderWidth = 0
        leftButtonBox.borderWidth = 0
        leftButtonBox.contentView = cancelButton_
        rightButtonBox.borderWidth = 0
        rightButtonBox.contentView = okButton_

        outlineNameLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-medium")
        pageLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-regular")
        
        self.localizedLanguage()
        
        self.setONButton(button: self.pageButton)
        self.enableTextField(textField: self.outlineTargetPageIndexTextField)
        
        self.setDelegateAndFormatter()
        if let action = self.outline?.action {
            self.adjustUIWithAction(action: action)
        }

    }
    
    override func updateUILanguage() {
        super.updateUILanguage()
        
        KMMainThreadExecute {
            self.outlineNameLabel.stringValue = KMLocalizedString("Rename")
        }
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        view.wantsLayer = true
        KMMainThreadExecute {
            self.view.layer?.backgroundColor = KMNColorTools.colorBg_popup().cgColor
            self.outlineNameLabel.textColor = KMNColorTools.colorText_1()
            self.pageLabel.textColor = KMNColorTools.compField_colorTextFilledNor()
        }
    }
    
    //MARK: - Private Methods
    
    private func localizedLanguage () {
        
        self.pageButton.title = "\(NSLocalizedString("Page", comment: ""))"
        self.urlButton.title = "\(NSLocalizedString("URL:", comment: ""))"
        self.outlineURLTextField.placeholderString = "\(NSLocalizedString("https://www.pdfreaderpro.com", comment: ""))"
        self.mailButton.title = "Email:"
        self.mailAddressTextField.placeholderString = "\(NSLocalizedString("support@pdfreaderpro.com", comment: ""))"
        self.outlineNameTextView.string = self.outline?.label ?? ""
    }
    
    private func adjustUIWithAction(action:CPDFAction!) {
        guard let doc = self.pdfView?.document else {
            return
        }
        
        if action == nil {
            self.totalPageCountLabel.stringValue = " \(doc.pageCount)"
            self.outlineTargetPageIndexTextField.stringValue = " \(self.currentPageIndex + 1)"
        } else {
            guard let outL  = self.outline else {
                return
            }
            if action.isKind(of: CPDFURLAction.self) {
                var newAction : CPDFURLAction = self.outline?.action as! CPDFURLAction
                var urlString = newAction.url() ?? ""
                self.originalURLString = urlString
                
                if urlString.hasPrefix("mailto:") {
                    self.setONButton(button: self.mailButton)
                    self.enableTextField(textField: self.mailAddressTextField)
                    urlString = String(urlString.suffix(from: "mailto:".endIndex))
                    self.mailAddressTextField.stringValue = urlString
                } else {
                    self.setONButton(button: self.urlButton)
                    self.enableTextField(textField: self.outlineURLTextField)
                    self.outlineURLTextField.stringValue = urlString
                }
                self.currentPageIndex = Int(doc.index(for: doc.page(at: UInt(self.pdfView!.currentPageIndex))))
            } else {
                self.setONButton(button: self.pageButton)
                self.enableTextField(textField: self.outlineTargetPageIndexTextField)
                self.currentPageIndex = Int(doc.index(for: doc.page(at: UInt(outL.destination.pageIndex))))
                self.originalDestination = outL.destination
                self.originalPageIndex = self.originalDestination?.pageIndex ?? -1
            }
            self.originalLabel = outL.label ?? ""
            self.totalPageCountLabel.stringValue = " /\(doc.pageCount)"
            self.outlineTargetPageIndexTextField.stringValue = "\(self.currentPageIndex + 1)"
        }
    }
    
    private func setDelegateAndFormatter () {
        self.outlineTargetPageIndexTextField.delegate = self
        self.outlineNameTextView.delegate = self
        
        var formatter = NumberFormatter()
        formatter.numberStyle = .none
        formatter.maximum = NSNumber(value: self.pdfView?.document?.pageCount ?? 0)
        formatter.minimum = NSNumber(value: 1)
        self.outlineTargetPageIndexTextField.formatter = formatter
    }
    
    private func setONButton(button:NSButton) {
        self.pageButton.state = NSControl.StateValue.off
        self.urlButton.state = NSControl.StateValue.off
        self.mailButton.state = NSControl.StateValue.off
        
        button.state = NSControl.StateValue.on
    }
    
    private func enableTextField(textField:NSTextField) {
        self.outlineTargetPageIndexTextField.isEditable = false
        self.outlineTargetPageIndexTextField.isSelectable = false
        self.outlineURLTextField.isEditable = false
        self.outlineURLTextField.isSelectable = false
        self.mailAddressTextField.isEditable = false
        self.mailAddressTextField.isSelectable = false
        
        self.outlineTargetPageIndexTextField.textColor = KMAppearance.Layout.h0Color()
        self.outlineURLTextField.textColor = KMAppearance.Layout.h0Color()
        self.mailAddressTextField.textColor = KMAppearance.Layout.h0Color()
        
        textField.isEditable = true
        textField.isSelectable = true
        textField.textColor = KMAppearance.Layout.h0Color()
    }
    
    //MARK: Button Action
    @IBAction func buttonClicked_GotoAction(_ sender: Any) {
        self.setONButton(button: self.pageButton)
        self.enableTextField(textField: self.outlineTargetPageIndexTextField)
        
        self.view.window?.makeFirstResponder(self.outlineTargetPageIndexTextField)
    }
    
    @IBAction func buttonClicked_URLAction(_ sender: Any) {
        self.setONButton(button: self.urlButton)
        self.enableTextField(textField: self.outlineURLTextField)
        
        self.view.window?.makeFirstResponder(self.outlineURLTextField)
        if (self.outlineTargetPageIndexTextField.stringValue == "0" || self.outlineTargetPageIndexTextField.stringValue.lengthOfBytes(using: String.Encoding(rawValue: String.Encoding.utf16.rawValue)) < 1){
            self.outlineTargetPageIndexTextField.stringValue = "\(self.currentPageIndex + 1)"
        }
    }
    
    @IBAction func buttonClicked_MailAction(_ sender: Any) {
        self.setONButton(button: self.mailButton)
        self.enableTextField(textField: self.mailAddressTextField)
        
        self.view.window?.makeFirstResponder(self.mailAddressTextField)
        if (self.outlineTargetPageIndexTextField.stringValue == "0" || self.outlineTargetPageIndexTextField.stringValue.lengthOfBytes(using: String.Encoding(rawValue: String.Encoding.utf16.rawValue)) < 1){
            self.outlineTargetPageIndexTextField.stringValue = "\(self.currentPageIndex + 1)"
        }
    }
    
}

extension KMOutlineEditViewController : NSTextFieldDelegate,NSTextViewDelegate {
    func controlTextDidChange(_ obj: Notification) {
        if self.outlineTargetPageIndexTextField.isEqual(obj.object) {
            let number = NSNumber(value: Int(self.outlineTargetPageIndexTextField.stringValue) ?? 0)
            let string = self.outlineTargetPageIndexTextField.formatter?.string(for: number)
            let s = Int(string ?? "")
            if s != 0 {
                self.currentPageIndex = (s ?? 0) - 1
            }
            self.outlineTargetPageIndexTextField.stringValue = string ?? ""
        }
    }
}