/**
 * BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
 * 
 * Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
 *
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 3.0 of the License, or (at your option) any later
 * version.
 * 
 * BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.bigbluebutton.presentation.imp;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

import org.bigbluebutton.presentation.PageConverter;
import org.bigbluebutton.presentation.UploadedPresentation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.artofsolving.jodconverter.*;
import com.artofsolving.jodconverter.openoffice.connection.*;
import com.artofsolving.jodconverter.openoffice.converter.*;

public class Office2PdfPageConverter implements PageConverter {
  private static Logger log = LoggerFactory.getLogger(Office2PdfPageConverter.class);

  public boolean convert(File presentationFile, File output, int page, UploadedPresentation pres){
    SocketOpenOfficeConnection connection = new SocketOpenOfficeConnection(8100);

    try {
      connection.connect();

      log.debug("Converting " + presentationFile.getAbsolutePath() + " to " + output.getAbsolutePath());

      DefaultDocumentFormatRegistry registry = new DefaultDocumentFormatRegistry();
      OpenOfficeDocumentConverter converter = new OpenOfficeDocumentConverter(connection, registry);

      DocumentFormat pdf = registry.getFormatByFileExtension("pdf");
      Map<String, Object> pdfOptions = new HashMap<String, Object>();
      pdfOptions.put("ReduceImageResolution", Boolean.TRUE);
      pdfOptions.put("MaxImageResolution", Integer.valueOf(300));
      pdf.setExportOption(DocumentFamily.TEXT, "FilterData", pdfOptions);

      converter.convert(presentationFile, output, pdf);
      connection.disconnect();

      if (output.exists()) {
        return true;
      } else {
        log.warn("Failed to convert: " + output.getAbsolutePath() + " does not exist.");
        return false;
      }

    } catch(Exception e) {
      log.error("Exception: Failed to convert " + output.getAbsolutePath());
      return false;
    }
  }

}