PDF_Office/PDF Office/PDF Master/Class/PDFTools/PageEdit/Window/KMPDFEditExtractWindow.swift

//
//  KMPDFEditExtractWindow.swift
//  PDF Master
//
//  Created by tangchao on 2023/11/14.
//

import Cocoa

class KMPDFEditExtractWindow: NSWindowController {    
    @IBOutlet var cancelButton: NSButton!
    @IBOutlet var extractButton: NSButton!
    @IBOutlet var deleteExtractButton: NSButton!
    @IBOutlet var extractAsDocumentsPerPageButton: NSButton! //每页提取为单个PDF
    
    var callback: ((CPDFDocument?, KMFileAttribute?, Bool, Bool)->Void)?
    
    private var _extractPerPageFlag = false //是否按页提取标志位;
    private var _selectedPagesName = ""
    private var _pdfDocument: CPDFDocument?
    private var _attribute: KMFileAttribute?
    
    convenience init(document: CPDFDocument, selectedPagesName pageString: String) {
        self.init(windowNibName: "KMPDFEditExtractWindow")
        
        self._selectedPagesName = pageString
        self._pdfDocument = document
        
        self._attribute = KMFileAttribute()
        self._attribute?.pagesString = pageString

        if (pageString.isEmpty == false) {
            self._selectedPagesName = pageString
            self._attribute?.bAllPage = false
        } else {
            self._attribute?.bAllPage = true
        }
        self._attribute?.filePath = document.documentURL.path
        self._attribute?.pdfDocument = self._pdfDocument!
    }
    
    convenience init(fileURL documentPath: URL, selectedPagesName pageString: String) {
        self.init(windowNibName: "KMPDFEditExtractWindow")
        
        self._selectedPagesName = pageString
        self._pdfDocument = CPDFDocument(url: documentPath)
        
        self._attribute = KMFileAttribute()
        self._attribute?.pagesString = pageString
        if (pageString.isEmpty == false) {
            self._selectedPagesName = pageString
            
            self._attribute?.bAllPage = false
        } else {
            self._attribute?.bAllPage = true
        }
        self._attribute?.filePath = documentPath.path
        self._attribute?.pdfDocument = self._pdfDocument!
    }
    
    override func windowDidLoad() {
        super.windowDidLoad()
    
        self._extractPerPageFlag = false
        self.extractAsDocumentsPerPageButton.title = KMLocalizedString("Each page in a separate file", nil)
        
//        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//            if ([self.pdfDocument isEncrypted] && [self.pdfDocument isLocked]) {
//                PasswordWindowController *com = [[PasswordWindowController alloc] initWithWindowNibName:@"PasswordWindowController"];
//                com.fileURL = [self.pdfDocument documentURL];
//                [com beginSheetModalForWindow:self.window completionHandler:^(NSString *password) {
//                    if (password) {
//                        self.attribute.password = password;
//                        [self.pdfDocument unlockWithPassword:password];
//                    } else {
//                        self.pdfDocument = nil;
//                        [NSApp endSheet:[self window]];
//                        [[self window] orderOut:self];
//                        [self release];
//                    }
//
//                }];
//                [com release];
//            }
            
//        });
        
        self.window?.title =  KMLocalizedString("Extract",nil)
        self.cancelButton.title = KMLocalizedString("Cancel",nil)
        self.extractButton.title = KMLocalizedString("Extract",nil)
        self.deleteExtractButton.title = KMLocalizedString("Delete pages after extraction",nil)
        self.deleteExtractButton.wantsLayer = true
        self.extractAsDocumentsPerPageButton.wantsLayer = true
    }
    
    /*
     - (void)updateButtonStateWithONButton:(NSButton *)sender
     {
         sender.state = NSControlStateValueOn;
     }
     */
    
    @IBAction func buttonItemClicked_Cancel(_ sender: AnyObject) {
        self._pdfDocument = nil;

        guard let block = self.callback else {
            return
        }
        block(nil, nil, false, false)
    }
    
    @IBAction func buttonItemClicked_Extract(_ sender: AnyObject) {
        if let data = self._attribute?.fetchSelectPages().isEmpty, data {
            let alert = NSAlert()
            alert.alertStyle = .critical
            alert.messageText = String(format: "%@ %@", self._attribute?.filePath.lastPathComponent ?? "", KMLocalizedString("Invalid page range or the page number is out of range. Please try again.", nil))
            alert.runModal()
            return
        }
        
        if (self.deleteExtractButton.state == .on &&  self._pdfDocument!.pageCount == (self._attribute?.fetchSelectPages().count)!) {
            let alert = NSAlert()
            alert.alertStyle = .critical
            alert.messageText = String(format: "%@ %@", self._attribute?.filePath.lastPathComponent ?? "", KMLocalizedString("Invalid page range or the page number is out of range. Please try again.", nil))
            alert.runModal()
            return;
        }
        guard let block = self.callback else {
            return
        }
        block(self._pdfDocument, self._attribute, self._extractPerPageFlag, self.deleteExtractButton.state == .on)
    }
    
    @IBAction func buttonItemClicked_OnePDFPerPage(_ sender: AnyObject) {
        if (self.extractAsDocumentsPerPageButton.state == .on) {
            self._extractPerPageFlag = true
        } else {
            self._extractPerPageFlag = false
        }
    }

}