/*
    * Copyright (c) 2002-2023, City of 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.ctv.web;
  
  import java.awt.image.BufferedImage;
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.util.Base64;
  
  import javax.imageio.ImageIO;
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import fr.paris.lutece.plugins.ctv.bo.Emprise;
  import fr.paris.lutece.plugins.ctv.business.IEmpriseService;
  import fr.paris.lutece.plugins.ctv.business.IStockageImageService;
  import fr.paris.lutece.portal.service.spring.SpringContextService;
  import fr.paris.lutece.portal.service.util.AppPropertiesService;
  
  public class EmpriseImageServlet extends HttpServlet
  {
  
      private static final long serialVersionUID = 1L;
  
      @Override
      public void doGet( HttpServletRequest request, HttpServletResponse resp ) throws ServletException, IOException
      {
  
          IStockageImageService stockageService = SpringContextService.getBean( "stockageImageService" );
          IEmpriseService empriseService = SpringContextService.getBean( "empriseService" );
  
          String pathFolder = AppPropertiesService.getProperty( "ctv.directory.upload" );
  
          int empriseId = Integer.parseInt( request.getParameter( "emprise_id" ) );
  
          Emprise emprise = empriseService.findEmpriseById( empriseId );
          String imageBase64 = stockageService.getImageFromServer( pathFolder, emprise.getEmpriseDateCreation( ), empriseId );
          OutputStream out = resp.getOutputStream( );
          writeOutputStream( imageBase64, out );
  
          resp.setContentType( "image/jpg" );
          resp.setHeader( "Pragma", "" );
          resp.setHeader( "Cache-Control", "" );
          resp.setHeader( "Content-Disposition", "inline; fileName=emprise.jpg" );
      }
  
      private void writeOutputStream( String value, OutputStream outputStream ) throws IOException
      {
          byte [ ] imgBytes = Base64.getDecoder( ).decode( value.replace( "data:image/jpeg;base64,", "" ) );
          BufferedImage bufImg = null;
          if ( imgBytes.length > 0 )
          {
              bufImg = ImageIO.read( new ByteArrayInputStream( imgBytes ) );
  
          }
          else
          {
              bufImg = new BufferedImage( 1, 1, BufferedImage.TYPE_INT_RGB );
          }
          ImageIO.write( bufImg, "jpg", outputStream );
  
      }
  
  }