/*
    * Copyright (c) 2002-2016, 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.avatarserver.web.rs;
  
  import fr.paris.lutece.plugins.avatarserver.business.Avatar;
  import fr.paris.lutece.plugins.avatarserver.business.AvatarHome;
  import fr.paris.lutece.plugins.rest.service.RestConstants;
  import fr.paris.lutece.portal.service.util.AppPropertiesService;
  
  import org.apache.log4j.Logger;
  
  import java.io.IOException;
  import java.io.OutputStream;
  
  import javax.servlet.http.HttpServletResponse;
  
  import javax.ws.rs.GET;
  import javax.ws.rs.Path;
  import javax.ws.rs.PathParam;
  import javax.ws.rs.Produces;
  import javax.ws.rs.core.Context;
  import javax.ws.rs.core.HttpHeaders;
  
  /**
   *
   * @author martinlo
   */
  @Path( RestConstants.BASE_PATH + "avatarserver/" )
  public class AvatarRest
  {
      private static final String PROPERTY_DEFAULT_AVATAR_URL = "avatarserver.default.avatar.url";
      @Context
      HttpHeaders _header;
      @Context
      HttpServletResponse _response;
      private Logger _logger = Logger.getLogger( RestConstants.REST_LOGGER );
  
      /**
       * Return the avatar for a given hash
       * 
       * @param strHash
       *            The hash
       * @return The avatar's image
       * @throws IOException
       *             if an error occurs
       */
      @GET
      @Path( "/{hash}" )
      @Produces( "image/*" )
      public String getAvatar( @PathParam( "hash" ) String strHash ) throws IOException
      {
          _logger.debug( "Avatar requested for hash = " + strHash );
  
          Avatar avatar = AvatarHome.findByHash( strHash );
  
          if ( avatar != null )
          {
              _response.setContentType( "images/jpg" );
              _response.setHeader( "Content-Type", avatar.getMimeType( ) );
              _response.setHeader( "Content-Disposition", "inline; filename=\"" + "avatar" + "\"" );
  
              OutputStream out = _response.getOutputStream( );
              out.write( avatar.getValue( ) );
              out.close( );
          }
          else
          {
              String strDefaultAvatarUrl = AppPropertiesService.getProperty( PROPERTY_DEFAULT_AVATAR_URL );
             _response.sendRedirect( strDefaultAvatarUrl );
         }
 
         return "";
     }
 }