//
//  KMHomeOpenView.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/10/8.
//

import Cocoa
import KMComponentLibrary

@objc protocol KMHomeOpenViewDelegate: AnyObject {
    
    //选择文件
    @objc optional func homeOpenViewDidChooseFileURL(_ view: KMHomeOpenView?, _ url:URL)
 
    //选择多个图片文件
    @objc optional func homeOpenViewDidChooseImageURLs(_ view: KMHomeOpenView?, _ urls: [URL])
    
    @objc optional func homeOpenViewDidChooseCreateFromClipboard(_ view: KMHomeOpenView?)
}

class KMHomeOpenView: BaseXibView {
    
    @IBOutlet weak var contendView: NSView!
    @IBOutlet weak var openFileButton: ComponentButton!
    @IBOutlet var createFileButton: ComponentButton!
    
    var groupView: ComponentGroup!
    var createWC: KMURLCreatePDFWindowController = KMURLCreatePDFWindowController(windowNibName: "KMURLCreatePDFWindowController")

    weak open var delegate: KMHomeOpenViewDelegate?

    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()
        
        setUpButtonProperty()
    }
    
    func setUpButtonProperty() {
        openFileButton.properties = ComponentButtonProperty(type: .primary,
                                                            size: .m,
                                                            state: .normal,
                                                            buttonText: KMLocalizedString("Open Files"),
                                                            keepPressState: false)
        openFileButton.setTarget(self, action: #selector(openFileAction(_:)))
        
        createFileButton.properties = ComponentButtonProperty(type: .default_tertiary,
                                                              size: .m,
                                                              showRightIcon: true,
                                                              buttonText: KMLocalizedString("Create PDF"))
        createFileButton.properties.propertyInfo.rightIcon_nor = NSImage(named: "arrowDown")
        createFileButton.properties.propertyInfo.rightIcon_press = NSImage(named: "arrowDown_press")
        createFileButton.reloadData()
        createFileButton.setTarget(self, action: #selector(createFileAction(_:)))
        
    }
    
    //MARK: - GroupView
    func showGroupView() {
        var viewHeight: CGFloat = 8
        var menuItemArr: [ComponentMenuitemProperty] = []
        for i in ["New From File", "New Blank Page", "New From Web Page", "New From Clipboard", " ", "Import From Scanner"] {
            if i == " " {
                let property: ComponentMenuitemProperty = ComponentMenuitemProperty.divider()
                menuItemArr.append(property)
                viewHeight += 8
            } else {
                let properties_Menuitem: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false, 
                                                                                               itemSelected: false,
                                                                                               isDisabled: false,
                                                                                               keyEquivalent: nil,
                                                                                               text: KMLocalizedString(i))
                menuItemArr.append(properties_Menuitem)
                viewHeight += 36
            }
        }
        
        if groupView == nil {
            groupView = ComponentGroup.createFromNib(in: ComponentLibrary.shared.componentBundle())
        }
        groupView.groupDelegate = self
        groupView?.frame = CGRectMake(310, 0, CGRectGetWidth(self.bounds), viewHeight)
        groupView.updateGroupInfo(menuItemArr)
        
        var point = convert(createFileButton.frame.origin, to: nil)
        point.y -= viewHeight
        groupView.showWithPoint(point, relativeTo: createFileButton)
        
        createFileButton.properties.state = .pressed
        createFileButton.reloadData()
        
    }
    
    func removeGroupView() {
        if groupView != nil {
            groupView.removeFromSuperview()
        }
        createFileButton.properties.state = .normal
        createFileButton.reloadData()
    }
    
    //MARK: - Action
    @objc func openFileAction(_ sender: NSView) {
        let openPanel = NSOpenPanel()
        openPanel.allowedFileTypes = ["pdf", "PDF"]
        openPanel.allowsMultipleSelection = false
        openPanel.beginSheetModal(for: self.window!) { [weak self] result in
             if result == NSApplication.ModalResponse.OK {
                 if let url = openPanel.url {
                     self?.delegate?.homeOpenViewDidChooseFileURL?(self, url)
                 }
            }
        }
    }
    
    @objc func createFileAction(_ sender: NSView) {
        showGroupView()
    }
    
    func newFromFile() {
        let openPanel = NSOpenPanel()
        openPanel.allowedFileTypes = KMImageToPDFMethod.supportedImageTypes()
        //MARK: 允许多选还是单选，如果是付费用户允许多选
        openPanel.allowsMultipleSelection = true
        openPanel.message = KMLocalizedString("Select images to create a new document. To select multiple files press cmd ⌘ button on keyboard and click on the target files one by one.")
        if IAPProductsManager.default().isAvailableAllFunction(){
            openPanel.allowsMultipleSelection = true
        } else {
            openPanel.allowsMultipleSelection = false
        }
        
        openPanel.beginSheetModal(for: NSWindow.currentWindow()) {[weak self] result in
            if result == NSApplication.ModalResponse.OK {
                guard let weakSelf = self else { return }
                let urls = openPanel.urls as [URL]
                weakSelf.delegate?.homeOpenViewDidChooseImageURLs?(weakSelf, urls)
            }
        }
    }
    
    func newBlankPage() {
        let panel = NSSavePanel()
        panel.allowedFileTypes = ["pdf"]
        let resp = panel.runModal()
        if resp != .OK {
            return
        }
        let saveUrl = panel.url!
        let pdfDocument = CPDFDocument()
        pdfDocument?.insertPage(CGSize(width: 595, height: 842), at: 0)
        pdfDocument?.write(toFile: saveUrl.path)
        
        delegate?.homeOpenViewDidChooseFileURL?(self, saveUrl)
        
    }
    
    func newFromWebPage() {
        createWC.own_beginSheetModal(for: self.window) {[weak self] string in
            guard let weakSelf = self else { return }
            if let path = string {
                weakSelf.delegate?.homeOpenViewDidChooseFileURL?(weakSelf, URL(fileURLWithPath: path))
            }
        }
    }
    
    func newFromClipboard() {
        delegate?.homeOpenViewDidChooseCreateFromClipboard?(self)
    }
    
    func importFromScanner() {
        let vc = KMDeviceBrowserWindowController.shared
        vc.type = .scanner
        vc.importScannerFileCallback = { [weak self] (url: NSURL) -> Void in
            self?.delegate?.homeOpenViewDidChooseFileURL?(self, url as URL)
        }
        vc.showWindow(nil)
        vc.window?.center()
    }
    
}

//MARK: - ComponentDropdownDelegate
extension KMHomeOpenView: ComponentDropdownDelegate {
    func componentDropdownDidShowMenuItem(dropdown: ComponentDropdown) {
        showGroupView()
    }
    
}

//MARK: - ComponentGroupDelegate
extension KMHomeOpenView: ComponentGroupDelegate {
    func componentGroupDidDismiss(group: ComponentGroup?) {
        
        removeGroupView()
    }
    
    func componentGroupDidSelect(group: ComponentGroup?, menuItemProperty: ComponentMenuitemProperty?) {
        if let selItem = menuItemProperty {
            let index = group?.menuItemArr.firstIndex(of: selItem)
            if index == 0 {
                newFromFile()
            } else if index == 1 {
                newBlankPage()
            } else if index == 2 {
                newFromWebPage()
            } else if index == 3 {
                newFromClipboard()
            } else if index == 5 {
                importFromScanner()
            }
        }
    }
}