/*
    * Licensed under the GPL License. You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    *
    * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
    * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE.
   */
  package psiprobe.controllers;
  
  import java.net.InetAddress;
  import java.net.UnknownHostException;
  import java.util.List;
  import java.util.Locale;
  import java.util.Properties;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  import psiprobe.PostParameterizableViewController;
  import psiprobe.Utils;
  
  /**
   * The Class DecoratorController.
   */
  @Controller
  public class DecoratorController extends PostParameterizableViewController {
  
    /** The messages basename. */
    private String messagesBasename;
  
    /**
     * Gets the messages basename.
     *
     * @return the messages basename
     */
    public String getMessagesBasename() {
      return messagesBasename;
    }
  
    /**
     * Sets the messages basename.
     *
     * @param messagesBasename the new messages basename
     */
    @Value("/WEB-INF/messages")
    public void setMessagesBasename(String messagesBasename) {
      this.messagesBasename = messagesBasename;
    }
  
    @RequestMapping(path = "/decorator.htm")
    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws Exception {
      return super.handleRequest(request, response);
    }
  
    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
  
      try {
        request.setAttribute("hostname", InetAddress.getLocalHost().getHostName());
      } catch (UnknownHostException e) {
        request.setAttribute("hostname", "unknown");
        logger.trace("", e);
      }
  
      Properties version = (Properties) getApplicationContext().getBean("version");
      request.setAttribute("version", version.getProperty("probe.version"));
  
      //
      // Work out the language of the interface by matching resource files that we have
      // to the request locale.
      //
      String lang = "en";
      for (String fileName : getMessageFileNamesForLocale(request.getLocale())) {
        if (getServletContext().getResource(fileName + ".properties") != null) {
          lang = fileName.substring(messagesBasename.length() + 1);
          break;
        }
      }
  
      request.setAttribute("lang", lang);
  
      return super.handleRequestInternal(request, response);
    }
  
    /**
     * Gets the message file names for locale.
     *
     * @param locale the locale
    *
    * @return the message file names for locale
    */
   private List<String> getMessageFileNamesForLocale(Locale locale) {
     return Utils.getNamesForLocale(messagesBasename, locale);
   }
 
   @Value("decorators/probe")
   @Override
   public void setViewName(String viewName) {
     super.setViewName(viewName);
   }
 
 }