package it.stefanochizzolini.clown.samples;

import it.stefanochizzolini.clown.documents.Document;
import it.stefanochizzolini.clown.files.File;
import it.stefanochizzolini.clown.tools.PageManager;

/**
  This sample demonstrates how to concatenate a document to another.

  @author Stefano Chizzolini (http://www.stefanochizzolini.it)
  @version 0.0.6
*/
public class MergeSample
  implements ISample
{
  public void run(
    PDFClownSampleLoader loader
    )
  {
    // 1. Opening the PDF files...
    File sourceFile, targetFile;
    {
      // (boilerplate user choice -- ignore it)
      String sourceFilePath = loader.getPdfFileChoice("Please select source PDF file");
      String targetFilePath = loader.getPdfFileChoice("Please select target PDF file");

      // Source file.
      try{sourceFile = new File(sourceFilePath);}
      catch(Exception e){throw new RuntimeException(sourceFilePath + " file access error.",e);}
      // Target file.
      try{targetFile = new File(targetFilePath);}
      catch(Exception e){throw new RuntimeException(targetFilePath + " file access error.",e);}
    }
    Document targetDocument = targetFile.getDocument();

    // 2. Append the source document's pages to the target document!
    new PageManager(targetDocument).add(sourceFile.getDocument());

    // (boilerplate metadata insertion -- ignore it)
    loader.buildAccessories(targetDocument,this.getClass(),"Merge","concatenating two (or possibly more) documents");

    // 3. Serialize the PDF file (again, boilerplate code -- see the PDFClownSampleLoader class source code)!
    loader.serialize(targetFile,this.getClass().getSimpleName());
  }
}