// 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 enumerate and modify bookmarks
// in PDF document.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

using foxit;
using foxit.common;
using foxit.common.fxcrt;
using foxit.pdf;
using foxit.pdf.actions;

namespace bookmarkCS
{
    class TextDoc 
    {
        private FileStream mfile_stream;
        public TextDoc(string file_name, FileMode fill_mode)
        {
            mfile_stream = new FileStream(file_name, fill_mode);
        }
        ~TextDoc()
        {
            try
            {
                mfile_stream.Flush();
                mfile_stream.Close();
            }
            catch (System.ObjectDisposedException e)
            {
                string str = e.Message;
            }
            
        }
        public void Write(string contents)
        {
            byte[] byte_data = Encoding.Default.GetBytes(contents);
            // Move file pointer to the end of file.
            mfile_stream.Seek(0, SeekOrigin.End);
            mfile_stream.Write(byte_data, 0, byte_data.Length);
            mfile_stream.Flush();
        }
        public string Read()
        {
            int fs_len = (int)mfile_stream.Length;
            byte[] byte_data = new byte[fs_len];
            int r = mfile_stream.Read(byte_data, 0, byte_data.Length);
            string contents = System.Text.Encoding.UTF8.GetString(byte_data);
            return contents;
        }
    };

    class bookmark
    {
        public static void ShowBookmarksInfo(PDFDoc doc, string info_path)
        {
            TextDoc text_doc = new TextDoc(info_path, FileMode.Create);
            Bookmark root = doc.GetRootBookmark();
            using (root)
            {
                if (!root.IsEmpty())
                {
                    ShowBookmarkInfo(root, text_doc, 0);
                }
                else
                {
                    text_doc.Write("No bookmark information!\r\n");
                }
            }
        }

        public static void ShowBookmarkInfo(Bookmark bookmark, TextDoc doc, int depth)
        {
            if (depth > 32)
                return;
            if (bookmark.IsEmpty())
                return;
            for (int i = 0; i < depth; i++)
                doc.Write("\t");

            // Show bookmark's title.
            string title = bookmark.GetTitle();
            doc.Write(string.Format("{0}\t", title));

            // Show bookmark's color.
            int color = bookmark.GetColor();
            doc.Write(string.Format("color: {0:X}\r\n", color));
            using (Bookmark first_child = bookmark.GetFirstChild())
                ShowBookmarkInfo(first_child, doc, depth + 1);
            using (Bookmark next_sibling = bookmark.GetNextSibling())
                ShowBookmarkInfo(next_sibling, doc, depth);
        }

        static void Main(string[] args)
        {
            string input_path = "../input_files/";
            string output_path = "../output_files/bookmark/";
            System.IO.Directory.CreateDirectory(output_path);

            string sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
            string key = "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";
            // Initialize library
            ErrorCode error_code = Library.Initialize(sn, key);
            if (error_code != ErrorCode.e_ErrSuccess)
            {
                Console.WriteLine("Library Initialize Error: {0}\n", error_code);
                return;
            }

            try
            {
                string input_file = input_path + "AboutFoxit.pdf";
                string output_file1 = output_path + "bookmark_add.pdf";
                string output_file2 = output_path + "bookmark_change.pdf";

                using (PDFDoc doc = new PDFDoc(input_file))
                {
                    error_code = doc.Load(null);
                    if (error_code != ErrorCode.e_ErrSuccess)
                    {
                        Console.WriteLine("The PDFDoc [{0}] Error: {1}\n", input_file, error_code);
                        Library.Release();
                        return;
                    }

                    // Show original bookmark information.
                    ShowBookmarksInfo(doc, output_path + "bookmark_info.txt");

                    // Get bookmark root node or Create new bookmark root node.
                    Bookmark root = doc.GetRootBookmark();
                    
                        if (root.IsEmpty())
                        {
                            root = doc.CreateRootBookmark();
                        }
                        using (root)
                        {
                            for (int i = 0; i < doc.GetPageCount(); i += 2)
                            {
                                using (Destination dest = Destination.CreateFitPage(doc, i))
                                {
                                    string ws_title = string.Format("A bookmark to a page (index: {0})", i);

                                    Bookmark child;
                                    using (child = root.Insert(ws_title, Bookmark.Position.e_PosLastChild))
                                    {
                                        child.SetDestination(dest);
                                        child.SetColor(i * 0xF68C21);
                                    }
                                }
                            }
                            doc.SaveAs(output_file1, (int)PDFDoc.SaveFlags.e_SaveFlagNoOriginal);

                            // Get first bookmark and change properties.
                            Bookmark first_bookmark;
                            using (first_bookmark = root.GetFirstChild())
                            {
                                first_bookmark.SetStyle((int)Bookmark.Style.e_StyleItalic);
                                first_bookmark.SetColor(0xFF0000);
                                first_bookmark.SetTitle("Change bookmark title, style, and color");

                                // Remove next sibling bookmark
                                using (Bookmark nextsibling_bookmark = first_bookmark.GetNextSibling())
                                {
                                    if (!nextsibling_bookmark.IsEmpty())
                                    {
                                        doc.RemoveBookmark(nextsibling_bookmark);
                                    }
                                }
                                string bookmark_info_file = output_path + "bookmark_info1.txt";
                                ShowBookmarksInfo(doc, bookmark_info_file);
                            }
                        }
                    doc.SaveAs(output_file2, (int)PDFDoc.SaveFlags.e_SaveFlagNoOriginal);
                    Console.WriteLine("Bookmark demo.");
                }
            }
            catch (foxit.PDFException e)
            {
                Console.WriteLine(e.Message);
            }

            Library.Release();
        }
    }
}
