//
//  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 {
    
    weak open var pageEditViewController: KMNPageEditViewViewDelegate?

     override func viewDidLoad() {
        super.viewDidLoad()
         
         backViewBox.fillColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-pdfView")
         
         collectionView.menuClickedAction = { point in
             return self.clickMenu(point: point)
         }
    }
    
    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
    }

}