// 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 do full text search in PDF documents under a folder.

import com.foxit.sdk.PDFException;
import com.foxit.sdk.common.Bitmap;
import com.foxit.sdk.common.Image;
import com.foxit.sdk.common.Library;
import com.foxit.sdk.common.Renderer;
import com.foxit.sdk.common.fxcrt.*;
import com.foxit.sdk.pdf.PDFDoc;
import com.foxit.sdk.pdf.PDFPage;
import com.foxit.sdk.fts.*;
import com.foxit.sdk.common.*;
	
import java.io.*;
import java.io.File;
import java.io.FileWriter;
import java.util.Date; 
	
import static com.foxit.sdk.common.Bitmap.e_DIBArgb;
import static com.foxit.sdk.common.Constants.e_ErrSuccess;
import static com.foxit.sdk.pdf.PDFPage.e_ParsePageNormal;

public class fulltextsearch {
    private static String key = "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";
    private static String sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
    private static String output_path = "../output_files/fulltextsearch/";
    private static String input_path = "../input_files/fulltextsearch";

    // 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();
		}
	}
    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 directory = input_path;
        FullTextSearch search = new FullTextSearch();
        try {
              createResultFolder(output_path);
            String dbPath = output_path + "search.db";
            search.setDataBasePath(dbPath);
            // Get document source information.
            DocumentsSource source = new DocumentsSource(directory);
         
            // Create a Pause callback object implemented by users to pause the updating process.
            PauseUtil pause = new PauseUtil(30);
         
            // Start to update the index of PDF files which receive from the source.
            Progressive progressive = search.startUpdateIndex(source, pause, false);
            int state = Progressive.e_ToBeContinued;
            while (state == Progressive.e_ToBeContinued) {
                state = progressive.resume();
            }
         
            // Create a callback object which will be invoked when a matched one is found.
            MySearchCallback searchCallback = new MySearchCallback(output_path + "result.txt");
         
            // Search the specified keyword from the indexed data source.
            search.searchOf("Foxit", FullTextSearch.e_RankHitCountASC, searchCallback);
			System.out.println("FullTextSearch demo.");
        } catch (PDFException e) {
            e.printStackTrace();
        }
        
        Library.release();
    }

}

class MySearchCallback extends SearchCallback {
    private static final String TAG = MySearchCallback.class.getCanonicalName();
	private FileWriter text_doc_ = null;

	public MySearchCallback(String output_txt_file_path) {
		try {
			text_doc_ = new FileWriter(output_txt_file_path, false);
		} catch(IOException e) {
			System.out.println(String.format("[FAILED] Failed to create a txt file. TXT path:%s\r\n", output_txt_file_path));
			e.printStackTrace();
		}
	}
 
    @Override
    public void release() {
		try {
			if (null != text_doc_)
				text_doc_.close();
		} catch(IOException e) {
		}
    }
 
    @Override
    public int retrieveSearchResult(String filePath, int pageIndex, String matchResult, int matchStartTextIndex, int matchEndTextIndex, String sentence, int sentenceStartTextIndex, int sentenceEndTextIndex) {
		try {
			String result_str = String.format("RetrieveSearchResult:\nFound file is: %s\nPage index is: %d\nStart text index: %d\nEnd text index: %d\nMatch is: %s\nSentence start index: %d\nSentence end index: %d\nSentence is:%s\n", filePath, pageIndex, matchStartTextIndex, matchEndTextIndex, matchResult, sentenceStartTextIndex, sentenceEndTextIndex, sentence);
			text_doc_.write(result_str);
			text_doc_.write("\r\n");
		} catch(IOException e) {
			
		}
        return 0;
    }
}

class PauseUtil extends PauseCallback{
    private long m_milliseconds = 0;
    private long m_startTime = 0;
 
    public PauseUtil(long milliSeconds) {
        Date date = new Date();
        m_milliseconds = milliSeconds;
        m_startTime = date.getTime();
    }
 
    @Override
    public boolean needToPauseNow() {
        // TODO Auto-generated method stub
        if (this.m_milliseconds < 1)
            return false;
        Date date = new Date();
        long diff = date.getTime() - m_startTime;
        if (diff > this.m_milliseconds) {
            m_startTime = date.getTime();
            return true;
        } else
            return false;
    }
}