/*
    * Copyright (c) 2002-2018, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.stock.modules.billetterie.web;
  
  import fr.paris.lutece.plugins.stock.modules.tickets.service.IShowService;
  import fr.paris.lutece.portal.service.spring.SpringContextService;
  
  import org.apache.commons.io.IOUtils;
  import org.apache.commons.lang.StringUtils;
  
  import org.apache.log4j.Logger;
  
  import java.io.IOException;
  
  import javax.servlet.ServletException;
  import javax.servlet.ServletOutputStream;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * Used for special solr queries
   *
   * @author abataille
   */
  public class PosterImageServlet extends HttpServlet
  {
      private static final String ERROR_MESSAGE = "Appel de PosterImageServlet avec un id de produit null";
      private static final String CONTENT_TYPE_IMAGE_JPEG = "image/jpeg";
      private static final String PARAMETER_TB = "tb";
      private static final String PARAMETER_REAL_IMAGE = "img_real";
      private static final String PARAMETER_PRODUCT_ID = "product_id";
      private static final String BEAN_STOCK_TICKETS_SHOW_SERVICE = "stock-tickets.showService";
  
      /**
       *
       */
      private static final long serialVersionUID = -1165966480942742905L;
      private static final Logger LOGGER = Logger.getLogger( PosterImageServlet.class );
  
      /** The product service. */
      private IShowService _productService = (IShowService) SpringContextService.getBean( BEAN_STOCK_TICKETS_SHOW_SERVICE );
  
      /**
       * Returns poster image
       *
       * @param request
       *            the request
       * @param response
       *            the response
       * @throws ServletException
       *             the servlet exception
       * @throws IOException
       *             Signals that an I/O exception has occurred.
       */
      protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException
      {
          String sIdProduct = request.getParameter( PARAMETER_PRODUCT_ID );
  
          if ( StringUtils.isNotEmpty( sIdProduct ) )
          {
              Integer idProduct = Integer.parseInt( sIdProduct );
              boolean isThumbnail = ( request.getParameter( PARAMETER_TB ) != null ) && request.getParameter( PARAMETER_TB ).equals( String.valueOf( true ) );
              boolean isImageReal = ( request.getParameter( PARAMETER_REAL_IMAGE ) != null )
                      && request.getParameter( PARAMETER_REAL_IMAGE ).equals( String.valueOf( true ) );
              byte [ ] bImage;
  
              if ( isImageReal )
             {
                 bImage = _productService.getRealImage( idProduct );
             }
             else
             {
                 if ( isThumbnail )
                 {
                     bImage = _productService.getTbImage( idProduct );
                 }
                 else
                 {
                     bImage = _productService.getImage( idProduct );
                 }
             }
             response.setContentLength( bImage.length );
             response.setContentType( CONTENT_TYPE_IMAGE_JPEG );
 
             ServletOutputStream os = response.getOutputStream( );
             IOUtils.write( bImage, os );
             os.flush( );
             os.close( );
         }
         else
         {
             LOGGER.error( ERROR_MESSAGE );
         }
     }
 }