// Copyright (C) 2003-2026, Foxit Software Inc..
// All Rights Reserved.
//
// http://www.foxitsoftware.com
//
// The following code is copyrighted and contains proprietary information and trade secrets of Foxit Software Inc..
// You cannot distribute any part of Foxit PDF SDK to any third party or general public,
// unless there is a separate license agreement with Foxit Software Inc. which explicitly grants you such rights.
//
// This file contains an example to demonstrate how to use Foxit PDF SDK to get/set page label information
// in a PDF document.

import com.foxit.sdk.PDFException;
import com.foxit.sdk.common.Library;
import com.foxit.sdk.pdf.PDFDoc;
import com.foxit.sdk.pdf.PageLabels;

import java.io.File;
import java.io.FileWriter;

import static com.foxit.sdk.pdf.PageLabels.*;
import static com.foxit.sdk.pdf.PDFDoc.e_SaveFlagNoOriginal;
import static com.foxit.sdk.common.Constants.e_ErrSuccess;

public class page_labels {

	private static String key = "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";
	private static String sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
	private static String output_path = "../output_files/page_labels/";
	private static String input_path = "../input_files/";

    // You can also use System.load("filename") instead. The filename argument must be an absolute path name.
	static {
	   String os = System.getProperty("os.name").toLowerCase();
	   String lib = "fsdk_java_";
	   if (os.startsWith("win")) {
	       lib += "win";
	   } else if (os.startsWith("mac")) {
	      lib += "mac";
	   } else {
	       lib += "linux";
	   }
        
      if (System.getProperty("sun.arch.data.model").equals("64")) {
        if(System.getProperty("os.arch").equals("aarch64")){
          if(os.startsWith("mac")){
             lib += "arm";
           }
           else{
             lib += "armv8";
           }
         }
         else{
            lib += "64";
         }
      } else {
         if(System.getProperty("os.arch").equals("arm")){
            lib += "armv7";
         }
         else{
            lib += "32";
         }
      }
	   System.loadLibrary(lib);
	}

	private static void createResultFolder(String output_path) {
		File myPath = new File(output_path);
		if (!myPath.exists()) {
			myPath.mkdir();
		}
	}

	private static String StyleCodeToString(int style) {
		switch (style) {
		case e_None: {
			return "None";
		}
		case e_DecimalNums: {
			return "DecimalNums";
		}
		case e_UpperRomanNums: {
			return "UpperRomanNums";
		}
		case e_LowerRomanNums: {
			return "LowerRomanNums";
		}
		case e_UpperLetters: {
			return "UpperLetters";
		}
		case e_LowerLetters: {
			return "LowerLetters";
		}
		}
		return "";
	}

	private static void ShowPageLabelsInfo(PDFDoc doc, String text_doc_path) {
		try {
			FileWriter writer = new FileWriter(text_doc_path, false);
			PageLabels page_labels = new PageLabels(doc);
			int count = doc.getPageCount();
			for (int i = 0; i < count; i++) {
				writer.write("page index: " + i + "\tstyle: " + StyleCodeToString(page_labels.getPageLabelStyle(i))
						+ "\ttitle: " + page_labels.getPageLabelTitle(i) + "\tprefix: "
						+ page_labels.getPageLabelPrefix(i) + "\r\n");
			}
			writer.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) throws PDFException {
		createResultFolder(output_path);
		// Initialize library
		int error_code = Library.initialize(sn, key);
		if (error_code != e_ErrSuccess) {
			System.out.println("Library Initialize Error: " + error_code);
			return;
		}
		String input_file = input_path + "page_labels.pdf";
		try {
			PDFDoc doc = new PDFDoc(input_file);
			error_code = doc.load(null);
			if (error_code != e_ErrSuccess) {
				System.out.println("The Doc " + input_file + " Error: " + error_code);
				return;
			}
			String text_path = output_path + "page_labels_original_page_labels_info.txt";
			ShowPageLabelsInfo(doc, text_path);

			// Add new page labels
			PageLabels page_labels = new PageLabels(doc);
			page_labels.removeAll();
			String pdf_removeall = output_path + "removeall_page_labels.pdf";
			doc.saveAs(pdf_removeall, e_SaveFlagNoOriginal);

			int count = doc.getPageCount();
			if (count > 0) {
				page_labels.setPageLabel(0, e_UpperRomanNums, 1, "Cover-");
			}
			if (count > 1) {
				page_labels.setPageLabel(1, e_LowerRomanNums, 1, "Catolog-");
			}
			if (count > 2) {
				page_labels.setPageLabel(2, e_DecimalNums, 1, "Contents-");
			}
			if (count > 5) {
				page_labels.setPageLabel(count - 1, e_UpperLetters, 1, "Appendix-");
			}

			String text_path_new = output_path + "page_labels_new_page_labels_info.txt";
			ShowPageLabelsInfo(doc, text_path_new);
			String pdf_new = output_path + "new_page_labels.pdf";
			doc.saveAs(pdf_new, e_SaveFlagNoOriginal);

			System.out.println("Page label test.");
		} catch (Exception e) {
			e.printStackTrace();
		}
		Library.release();
		return;
	}
}
