//
//  KMPageRangeSelectView.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/11/21.
//

import Cocoa
import KMComponentLibrary

class KMPageRangeSelectView: NSView {
    
    var pageSelectView: ComponentSelect = ComponentSelect()
    
    override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
        
        setUp()
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        
        setUp()
    }
    
    func setUp() {
        pageSelectView.frame = self.bounds
        pageSelectView.autoresizingMask = [.width, .height]
        self.addSubview(pageSelectView)
        
        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
        
        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)
        
    }
    
    //MARK: - Get
    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
    }
    
}

extension KMPageRangeSelectView: 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()
    }
}