/*
    * Copyright (C) 2003-2008 eXo Platform SAS.
    *
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Affero General Public License
    * as published by the Free Software Foundation; either version 3
    * of the License, or (at your option) any later version.
    *
    * This program 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, see<http://www.gnu.org/licenses/>.
   */
  package org.exoplatform.services.cms.thumbnail.impl;
  
  import java.awt.image.BufferedImage;
  import java.io.File;
  import java.io.InputStream;
  import java.util.List;
  
  import javax.imageio.ImageIO;
  import javax.jcr.Node;
  
  import org.apache.commons.io.FileUtils;
  import org.apache.commons.lang.CharSet;
  import org.apache.commons.lang.StringUtils;
  import org.apache.tika.io.IOUtils;
  import org.exoplatform.container.component.ComponentPlugin;
  import org.exoplatform.container.xml.InitParams;
  import org.exoplatform.services.cms.jodconverter.JodConverterService;
  import org.exoplatform.services.cms.mimetype.DMSMimeTypeResolver;
  import org.exoplatform.services.cms.thumbnail.ThumbnailPlugin;
  import org.exoplatform.services.jcr.RepositoryService;
  import org.exoplatform.services.log.ExoLogger;
  import org.exoplatform.services.log.Log;
  import org.exoplatform.services.pdfviewer.PDFViewerService;
  import org.exoplatform.services.wcm.core.NodetypeConstant;
  import org.exoplatform.services.wcm.utils.WCMCoreUtils;
  import org.icepdf.core.pobjects.Document;
  import org.icepdf.core.pobjects.Page;
  import org.icepdf.core.util.GraphicsRenderingHints;
  
  /**
   * Created by The eXo Platform SARL
   * Author : Dang Van Minh
   *          minh.dang@exoplatform.com
   * OCt 22, 2009
   * 2:20:33 PM
   */
  public class OfficeDocumentThumbnailPlugin implements ComponentPlugin, ThumbnailPlugin {
  
    private ThumbnailType config;
    private String description;
    private String name;
    private JodConverterService jodConverter_;
  
    private static final Log LOG = ExoLogger.getExoLogger(OfficeDocumentThumbnailPlugin.class.getName());
  
    public OfficeDocumentThumbnailPlugin(JodConverterService jodConverter, InitParams initParams) throws Exception {
      config = initParams.getObjectParamValues(ThumbnailType.class).get(0);
      this.jodConverter_ = jodConverter;
    }
  
    public String getDescription() {
      return description;
    }
  
    public String getName() {
      return name;
    }
  
    public void setDescription(String description) {
      this.description = description;
    }
  
    public void setName(String name) {
      this.name = name;
    }
  
    public BufferedImage getBufferedImage(Node contentNode, String nodePath) throws Exception {
      if(contentNode.isNodeType(NodetypeConstant.NT_RESOURCE)) contentNode = contentNode.getParent();
      String extension = null;
      if (contentNode.hasProperty("jcr:content/jcr:mimeType")) {
        String mimeType = contentNode.getProperty("jcr:content/jcr:mimeType").getString();
        extension = DMSMimeTypeResolver.getInstance().getExtension(mimeType);
      } else if(contentNode.getName().contains(".")) {
        String fileName = contentNode.getName();
        extension = fileName.substring(fileName.lastIndexOf('.') + 1);
      } else {
        extension = ".officeDocument.tmp";
      }
      File in = File.createTempFile(name + "_tmp", "." + extension);
      InputStream documentStream = contentNode.getProperty("jcr:content/jcr:data").getStream();
      FileUtils.copyInputStreamToFile(documentStream, in);
      File out = File.createTempFile(name + "_tmp", ".jpg");
      boolean success = jodConverter_.convert(in, out,"jpg");
     if (success) {
       return ImageIO.read(out);
     } else {
       return null;
     }
   }
 
 
   public List<String> getMimeTypes() {
     return config.getMimeTypes();
   }
 
 }