//
//  KMNPageEditViewController.swift
//  PDF Reader Pro
//
//  Created by 丁林圭 on 2024/10/21.
//

import Cocoa

import KMComponentLibrary

@objc protocol KMNPageEditViewViewDelegate: AnyObject {
    @objc optional func changeBoundEditViewController(pageEditVC:KMNPageEditViewController)
    @objc optional func changeUndoManagerEditViewController(pageEditVC:KMNPageEditViewController)
}

class KMNPageEditViewController: KMNThumbnailBaseViewController {
    
    private var groupView: ComponentGroup? = ComponentGroup.createFromNib(in: ComponentLibrary.shared.componentBundle())

    weak open var pageEditViewController: KMNPageEditViewViewDelegate?

     override func viewDidLoad() {
        super.viewDidLoad()
                  
         collectionView.menuClickedAction = {[weak self] point in
             let menuStruct = self?.clickMenu(point: point)
             if self?.groupView != nil {
                 self?.groupView?.clickedAutoHide = true
                 self?.groupView?.groupDelegate = self
                 self?.groupView?.frame = CGRectMake(0, 0, 180, menuStruct?.viewHeight ?? 0)
                 self?.groupView?.updateGroupInfo(menuStruct?.menuitems ?? [])
                 
                 self?.groupView?.showWithPoint(CGPoint(x: point.x, y: point.y - (menuStruct?.viewHeight ?? 0)), relativeTo: self?.collectionView)
             }
             return NSMenu()
         }
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        backViewBox.fillColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-pdfView")
    }
    
    override func updateUILanguage() {
        super.updateUILanguage()
        
        self.groupView?.reloadData()
    }
    
    private func insertFilePath(filePath:String,pdfPassword:String?) {
        let selectedIndexPaths = collectionView.selectionIndexPaths
        
        let insertPDF = KMNPDFInsertPDFWindowController(showDocument, filePath: filePath, password: pdfPassword, selectionIndexPaths: selectedIndexPaths)
        insertPDF.pdfCallback = { [weak self] fileAttribute, insertIdx in
            let doc = fileAttribute.pdfDocument
            
            var insertPages: [CPDFPage] = []
            
            for number in fileAttribute.fetchSelectPages() {
                if let page = doc?.page(at: UInt(number-1)) {
                    insertPages.append(page)
                }
            }
            self?.thumbnailBaseViewDelegate?.insertPDFThumbnailViewControlle?(pageEditVC: self, pdfDocment: doc)
            
            self?.insertFormPages(insertPages: insertPages, pageDex: insertIdx)
        }
        insertPDF.fileCallback = { [weak self] filePath, insertIdx in
            self?.insertFromFilePath(fileNames: [filePath], formDex: 0, indexDex: UInt(insertIdx), selectIndexs: [], completionBlock: { newSelectIndexs in
            })
        }
        
        insertPDF.own_beginSheetModal(for: self.view.window, completionHandler: nil)
    }
    
    // MARK: - public
    public func canZoomInPageSize()->Bool {
        if pageThumbnailSize.width > defaultItemSize.width {
            return false
        }
        return true
    }
    
    public func canZoomOutPageSize()->Bool {
        if pageThumbnailSize.width < defaultItemSize.width {
            return false
        }
        return true
    }
    
    public func zoomInPageAction() { //放大
        if (canZoomInPageSize() == false) {
            return
        }
        let indexpaths = collectionView.selectionIndexPaths

        if (pageThumbnailSize.width < defaultItemSize.width) {
            pageThumbnailSize = defaultItemSize
        } else if (pageThumbnailSize.width == defaultItemSize.width) {
            pageThumbnailSize = NSSize(width: defaultItemSize.width*1.5, height: defaultItemSize.height*1.5)
        }
        
        collectionView.reloadData()
        collectionView.selectionIndexPaths = indexpaths
    }
    
    public func zoomOutPageAction() { //缩小
        if (canZoomOutPageSize() == false) {
            return
        }
        let indexpaths = collectionView.selectionIndexPaths

        if (pageThumbnailSize.width > defaultItemSize.width) {
            pageThumbnailSize = defaultItemSize
        } else if (pageThumbnailSize.width == defaultItemSize.width) {
            pageThumbnailSize = NSSize(width: defaultItemSize.width*0.5, height: defaultItemSize.height*0.5)
        }
        
        collectionView.reloadData()
        collectionView.selectionIndexPaths = indexpaths
    }

}

//MARK: - ComponentSelectDelegate
extension KMNPageEditViewController: ComponentGroupDelegate {
    func componentGroupDidSelect(group: ComponentGroup?, menuItemProperty: ComponentMenuitemProperty?) {
        if menuItemProperty?.identifier == ThumbnailMenuIdentifier_Copy {
            copyMenuItemAciton()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Cut) {
            cutMenuItemAciton()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Paste) {
            if(menuItemProperty != nil) {
                pastMenuItemAciton(menuitemProperty: menuItemProperty!)
            }
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Delete) {
            cutMenuItemAciton()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_RotateRight) {
            rotatePageRightAction()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_RotateLeft) {
            rotatePageLeftAction()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_InsertFile) {
            insertFromPDFAction()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Replace) {
            replacePDFAction()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_InsertBlank) {
            insertFromBlankAction()
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Export) {
            extractPDFAction()
        }  else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_Share) {
            if let point = menuItemProperty?.representedObject as? NSPoint {
                let rightIndex = collectionView.indexPathForItem(at: collectionView.convert(point, from: nil))
                if rightIndex != nil {
                    let cellView = collectionView.item(at: rightIndex!) as? KMNThumbnailCollectionViewItem
                    let indexpaths = collectionView.selectionIndexPaths
                    
                    let doucument = showDocument
                    let filename : String = doucument?.documentURL.lastPathComponent ?? ""
                    let folderPath = (NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(filename)) ?? ""
                    
                    try? FileManager.default.removeItem(atPath: folderPath)
                    
                    let pdfdocument = CPDFDocument()
                    let ret = pdfdocument?.importPages(KMNTools.indexpathsToIndexs(indexpaths: indexpaths), from: doucument, at: 0) ?? false
                    let url = URL(fileURLWithPath: folderPath)
                    if ret && cellView?.view != nil {
                        let _ = pdfdocument?.write(toFile: folderPath)
                        let selects: [URL] = [url]
                        
                        let picker = NSSharingServicePicker.init(items: selects)
                        let rect = CGRectMake(CGRectGetMaxX(cellView!.view.bounds), CGRectGetMinY(cellView!.view.bounds), 1, 1)
                        picker.show(relativeTo: rect, of: cellView!.view, preferredEdge: NSRectEdge.maxX)
                    }
                }
            }
        } else if (menuItemProperty?.identifier == ThumbnailMenuIdentifier_FileShowSize) {
            displayPageSizeAction()
        }
    }
    
    func componentGroupDidDismiss(group: ComponentGroup?) {
        
    }

}