// 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 operate PDF objects directly.


const FSDK = require("@fuxinsoft/foxit-pdf-sdk-node");
const fs = require('fs');
const os = require('os');
const path = require('path');
const util = require('util');

var sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
var key = "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";

const input_path = "../input_files/";
const output_path = "../output_files/";

// This function is to do some operation to PDF object.
function ObjectOperation(document) {
  let boolean_object = FSDK.PDFObject.CreateFromBoolean(true);
  let boolean_object_number= document.AddIndirectObject(boolean_object);

  console.log("Object number of new boolean object:  %s ", boolean_object_number.toString());

  let boolean_object_value = boolean_object.GetBoolean();
  console.log("\tValue of new boolean object: %s\r\n", boolean_object_value ? "true":"false");

  let float_object = FSDK.PDFObject.CreateFromFloat(0.1);
  let float_object_number= document.AddIndirectObject(float_object);
  console.log("Object number of new number object (as float):  %s ", float_object_number.toString());
  let float_object_value = float_object.GetFloat();
  console.log("\tValue of new number object (as float): %f", float_object_value);

  let integer_object = FSDK.PDFObject.CreateFromInteger(1);
  let integer_object_number= document.AddIndirectObject(integer_object);
  console.log("Object number of new number object (as integer): %s ", integer_object_number.toString());
  let integer_object_value = integer_object.GetInteger();
  console.log("\tValue of new number object (as integer): %d", integer_object_value);

  let string_object = FSDK.PDFObject.CreateFromString("foxit");
  let string_object_number= document.AddIndirectObject(string_object);
  console.log("Object number of new string object: %s ", string_object_number.toString());
  let string_object_value = string_object.GetWideString();
  console.log("\tValue of new string object: %s", string_object_value);

  let name_object = FSDK.PDFObject.CreateFromName("sdk");
  let name_object_number= document.AddIndirectObject(name_object);
  console.log("Object number of new name object: %s ", name_object_number.toString());
  let name_object_value = name_object.GetName();
  console.log("\tValue of new name object: %s\r\n", name_object_value);

  let date_time = new FSDK.DateTime(2017, 9, 27, 19, 36, 6, 0, 8, 0);
  let datetime_object = FSDK.PDFObject.CreateFromDateTime(date_time);
  let datetime_object_number= document.AddIndirectObject(datetime_object);
  console.log("Object number of new string object (as date-time):  %s ", datetime_object_number.toString());
  let datetime_object_value = datetime_object.GetWideString();
  console.log("\tValue of new string object (as date-time): %s", datetime_object_value);

  let array = FSDK.PDFArray.Create();
  let boolean_object_reference = FSDK.PDFObject.CreateReference(document, boolean_object_number);
  let boolean_object_reference_number = boolean_object_reference.GetObjNum();
  console.log("Object number of a new reference object to a boolean object: %s ", boolean_object_reference_number.toString());
  let float_object_reference = FSDK.PDFObject.CreateReference(document, float_object_number);
  let integer_object_reference = FSDK.PDFObject.CreateReference(document, integer_object_number);
  let integer_object_direct = integer_object_reference.GetDirectObject();
  console.log("Object number of the direct number object:  %s ", integer_object_direct.GetObjNum().toString());
  let string_object_reference = FSDK.PDFObject.CreateReference(document, string_object_number);
  let name_object_reference = FSDK.PDFObject.CreateReference(document, name_object_number);
  let datetime_object_reference = FSDK.PDFObject.CreateReference(document, datetime_object_number);

  array.AddElement(boolean_object_reference);
  array.AddElement(float_object_reference);
  array.AddElement(integer_object_reference);
  array.AddElement(string_object_reference);
  array.AddElement(name_object_reference);
  array.AddElement(datetime_object_reference);
  array.AddElement(boolean_object.CloneObject());

  let array_object_number = document.AddIndirectObject(array);
  console.log("Object number of array object:  %s ", array_object_number.toString());
}

// This function is to remove some properties from catalog dictionary.
function RemoveCatalogKey(document) {
  if (document.IsEmpty()) return;

  let catalog = document.GetCatalog();
  if (null == catalog) return;

  let key_strings = [ "Type", "Boolean", "Name", "String", "Array", "Dict"];
  let count = key_strings.length;
  for (let i = 0; i < count; i ++) {
    if (catalog.HasKey(key_strings[i]))
      catalog.RemoveAt(key_strings[i]);
  }
}

let error_code = FSDK.Library.Initialize(sn, key);
if (FSDK.e_ErrSuccess != error_code) {
  if (FSDK.e_ErrInvalidLicense == error_code)
    console.log("[Failed] Current used Foxit PDF SDK key information is invalid.");
  else
    console.log("Library Initialize Error: %d", FSDK.e_ErrSuccess);
  return;
}

let output_directory = output_path + "pdfobjects/";
if (!fs.existsSync(output_directory))  {
  fs.mkdirSync(output_directory);
}

let input_file = input_path + "pdfobjects.pdf";
try {
  let doc = new FSDK.PDFDoc(input_file);
  doc.StartLoad("", false, null);

  // Do some operation about PDF object.
  ObjectOperation(doc);
  let save_pdf_patth = output_directory + "pdfobjects_addnewobjects.pdf";
  doc.StartSaveAs(save_pdf_patth, FSDK.PDFDoc.e_SaveFlagNoOriginal, null);

  // To remove some properties from catalog dictionary.
  RemoveCatalogKey(doc);
  save_pdf_patth = output_directory + "pdfobjects_removekeyfromcatalog.pdf";
  doc.StartSaveAs(save_pdf_patth, FSDK.PDFDoc.e_SaveFlagNoOriginal, null);

} catch (e) {
  console.log(e);
}
FSDK.Library.Release();

