//
//  KMEditToolbarView.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/11/5.
//

import Cocoa
import KMComponentLibrary

@objc protocol KMEditToolbarViewDelegate: AnyObject {
    
    @objc optional func kmEditToolbarViewDidUpdateMode(_ view: KMEditToolbarView)
    
    @objc optional func kmEditToolbarViewDidChooseBatch(_ view: KMEditToolbarView)
    
    @objc optional func kmEditToolbarViewDidChooseApply(_ view: KMEditToolbarView)
    
    @objc optional func kmEditToolbarViewDidChooseExit(_ view: KMEditToolbarView)
 
}

class KMEditToolbarView: BaseXibView {
    
    @IBOutlet var contendView: NSView!
    
    @IBOutlet var titleLabel: NSTextField!
    @IBOutlet var pageSelectView: ComponentSelect!
    @IBOutlet var sepDivider: ComponentDivider!
    @IBOutlet var templateButton: ComponentButton!
    @IBOutlet var addButton: ComponentButton!
    @IBOutlet var batchButton: ComponentButton!
    
    @IBOutlet var applyButton: ComponentButton!
    @IBOutlet var exitButton: ComponentButton!
    
    @IBOutlet var templateButtonWidthConst: NSLayoutConstraint!
    @IBOutlet var addButtonWidthConst: NSLayoutConstraint!
    @IBOutlet var batchButtonWidthConst: NSLayoutConstraint!
    
    weak open var delegate: KMEditToolbarViewDelegate?
    
    var editType: KMPDFEditModeType = .none
    var editSubType: KMPDFEditSubModeType = .none

    var applyEnable: Bool = false
    
    //MARK: - func
    public override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)
        
        // Drawing code here.
    }
    
    public required init?(coder decoder: NSCoder) {
        super.init(coder: decoder)
        
    }
    
    override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
    }
    
    public override func awakeFromNib() {
        super.awakeFromNib()
        
        self.setupProperty()
    }
    
    func setupProperty() {
        contendView.wantsLayer = true
        contendView.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-middle").cgColor
        
        titleLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/1")
        titleLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-medium")
        
        pageSelectView.properties = ComponentSelectProperties(size: .s,
                                                              state: .normal,
                                                              placeholder: KMLocalizedString("e.g. 1,3-5,10"),
                                                              errorText: nil,
                                                              creatable: false,
                                                              text: KMLocalizedString("All Pages"))
        pageSelectView.delegate = self
        setUpPageSelctProperty()
        
        sepDivider.properties = ComponentDividerProperty(type: .vertical, dash: false)
        
        templateButton.properties = ComponentButtonProperty(type: .text_gray_opacity, size: .xs, showLeftIcon: true, buttonText: KMLocalizedString("Templates"), icon: NSImage(named: "icon_wm_template"))
        templateButtonWidthConst.constant = templateButton.properties.propertyInfo.viewWidth
        templateButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        addButton.properties = ComponentButtonProperty(type: .text_gray_opacity, size: .xs, showLeftIcon: true, buttonText: KMLocalizedString("Add Watermark"), icon: NSImage(named: "toolbar_plus"))
        addButtonWidthConst.constant = addButton.properties.propertyInfo.viewWidth
        addButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        batchButton.properties = ComponentButtonProperty(type: .text_gray_opacity, size: .xs, showLeftIcon: true, buttonText: KMLocalizedString("Batch"), icon: NSImage(named: "tools_batch"), keepPressState: false)
        batchButtonWidthConst.constant = batchButton.properties.propertyInfo.viewWidth
        batchButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        applyButton.properties = ComponentButtonProperty(type: .primary, size: .xs, buttonText: KMLocalizedString("Apply"), keepPressState: false)
        applyButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        exitButton.properties = ComponentButtonProperty(type: .default_tertiary, size: .xs, buttonText: KMLocalizedString("Exit"), keepPressState: false)
        exitButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
    }
    
    func setUpPageSelctProperty() {
        let menuItemString:[String] = [KMLocalizedString("All Pages"),
                                    KMLocalizedString("Odd Pages Only"),
                                    KMLocalizedString("Even Pages Only"),
                                    KMLocalizedString("e.g. 1,3-5,10")]

        var menuItemArr: [ComponentMenuitemProperty] = []
        for language in menuItemString {
            let itemProperty: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false,
                                                                                    itemSelected: false,
                                                                                    isDisabled: false,
                                                                                    keyEquivalent: nil,
                                                                                    text: language,
                                                                                    identifier: language)
            
            menuItemArr.append(itemProperty)
        }
        pageSelectView.updateMenuItemsArr(menuItemArr)
        pageSelectView.selectItemAtIndex(0)
         
    }
    
    func reloadData() {
        
        if editType == .none {
            
        } else if editType == .watermark {
            titleLabel.stringValue = KMLocalizedString("Add Watermark")
            addButton.properties.buttonText = KMLocalizedString("Add Watermark")
        } else if editType == .background {
            titleLabel.stringValue = KMLocalizedString("Add Background")
            addButton.properties.buttonText = KMLocalizedString("Add Background")
        } else if editType == .header_Footer {
            titleLabel.stringValue = KMLocalizedString("Add Header & Footer")
            addButton.properties.buttonText = KMLocalizedString("Add Header & Footer")
        } else if editType == .bates {
            titleLabel.stringValue = KMLocalizedString("Add Bates Numbers")
            addButton.properties.buttonText = KMLocalizedString("Add Bates Numbers")
        }
        
        if editSubType == .template {
            templateButton.properties.state = .pressed
            addButton.properties.state = .normal
        } else if editSubType == .add || editSubType == .edit {
            templateButton.properties.state = .normal
            addButton.properties.state = .pressed
        }
        templateButton.reloadData()
        
        addButton.properties = addButton.properties
        addButtonWidthConst.constant = addButton.properties.propertyInfo.viewWidth

        applyButton.properties.isDisabled = !applyEnable
        applyButton.reloadData()
        
    }
    
    func getSelectedPageString(_ document: CPDFDocument, _ pageIndexs: [Int]) -> String {
         
        var pages = [Int]()

        if pageSelectView.indexOfSelect() == 0 {
            pages = Array(0..<Int(document.pageCount))
        } else if pageSelectView.indexOfSelect() == 1 {
            pages = Array(stride(from: 0, to: Int(document.pageCount), by: 2))
        } else if pageSelectView.indexOfSelect() == 2 {
            pages = Array(stride(from: 1, to: Int(document.pageCount), by: 2))
        } else {
            pages = pageIndexs.map { $0 - 1 }
        }
        
        let pageIndexString = pages.isEmpty ? "" : pages.map { "\($0)" }.joined(separator: ",")
        
        return pageIndexString
    }
    
    func getSelectedPageIndex(_ document: CPDFDocument) -> [Int] {
        let pageRangeSelectIndex = pageSelectView.indexOfSelect()
        
        let fileAttribute = KMNFileAttribute()
        fileAttribute.pdfDocument = document
        fileAttribute.password = document.password ?? ""
        
        if pageRangeSelectIndex == 0  {
            fileAttribute.bAllPage = true
            fileAttribute.pagesType = .AllPages
        } else if pageRangeSelectIndex == 1 {
            fileAttribute.bAllPage = false
            fileAttribute.pagesType = .OnlyOdd
        } else {
            if(document.pageCount <= 1) {
                fileAttribute.bAllPage = false
                fileAttribute.pagesType = .PagesString
                fileAttribute.pagesString = pageSelectView.properties.text ?? ""
            } else {
                fileAttribute.bAllPage = false
                if(pageRangeSelectIndex == 2) {
                    fileAttribute.pagesType = .OnlyEven
                } else {
                    fileAttribute.bAllPage = false
                    fileAttribute.pagesType = .PagesString
                    fileAttribute.pagesString = pageSelectView.properties.text ?? ""
                }
            }
        }
        
        let pageIndex = fileAttribute.fetchSelectPages()
        return pageIndex
    }
    
    //MARK: - Action
    @objc func buttonClicked(_ sender: ComponentButton) {
        if sender == templateButton {
            editSubType = .template
            delegate?.kmEditToolbarViewDidUpdateMode?(self)
        } else if sender == addButton {
            editSubType = .add
            delegate?.kmEditToolbarViewDidUpdateMode?(self)
        } else if sender == batchButton {
            delegate?.kmEditToolbarViewDidChooseBatch?(self)
        } else if sender == applyButton {
            delegate?.kmEditToolbarViewDidChooseApply?(self)
        } else if sender == exitButton {
            delegate?.kmEditToolbarViewDidChooseExit?(self)
        }
        reloadData()
        
    }
    
}

extension KMEditToolbarView: ComponentSelectDelegate {
    func componentSelectDidSelect(view: ComponentSelect?, menuItemProperty: ComponentMenuitemProperty?) {
        if menuItemProperty?.identifier == KMLocalizedString("e.g. 1,3-5,10") {
            view?.properties.creatable = true
            view?.properties.text = ""
        } else {
            view?.properties.creatable = false
        }
        view?.reloadData()
    }
}