/*
    * Copyright (c) 2002-2017, 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.chatbot.modules.stationnement.web;
  
  import java.io.IOException;
  import java.util.HashMap;
  import java.util.Map;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.commons.io.IOUtils;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.portal.service.util.AppPropertiesService;
  import fr.paris.lutece.util.httpaccess.HttpAccess;
  import fr.paris.lutece.util.httpaccess.HttpAccessException;
  
  public class StationnementChatServlet extends HttpServlet
  {
  
      private static final String PROPERTY_TOKEN = "chatbot-stationnement.recast.token";
      private static final String PROPERTY_DIALOG_API_URL = "recast.dialog.api.url";
  
      private static final long serialVersionUID = -2387659805321292878L;
      
      @Override
      protected void service( HttpServletRequest request, HttpServletResponse response )
          throws ServletException, IOException
      {
          String strBody = IOUtils.toString(request.getReader());
          AppLogService.info ("Stationnement chat got request:" + strBody);
  
          String strToken = AppPropertiesService.getProperty( PROPERTY_TOKEN );
          
          HttpAccess client = new HttpAccess();
          String strURL = AppPropertiesService.getProperty(PROPERTY_DIALOG_API_URL);
  
          Map<String, String> headers = new HashMap<>();
          headers.put( "Authorization", "Token " + strToken);
  
          String strRecastResponse = null;
          try
          {
              strRecastResponse = client.doPostJSON(strURL, strBody, headers, null);
          }
          catch (HttpAccessException ex)
          {
              AppLogService.error( "Error accessing recast API : " + ex.getMessage() , ex);
          }
  
          response.getWriter().print(strRecastResponse);
      }
  }