/*
    * 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.googleapi.web;
  
  import fr.paris.lutece.plugins.googleapi.business.FeedProvider;
  import fr.paris.lutece.plugins.googleapi.business.Item;
  import fr.paris.lutece.plugins.googleapi.service.FeedsService;
  import fr.paris.lutece.portal.service.i18n.I18nService;
  import fr.paris.lutece.portal.service.plugin.Plugin;
  import fr.paris.lutece.portal.service.template.AppTemplateService;
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.portal.web.xpages.XPage;
  import fr.paris.lutece.portal.web.xpages.XPageApplication;
  import fr.paris.lutece.util.html.HtmlTemplate;
  
  import org.xml.sax.SAXException;
  
  import java.io.IOException;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Locale;
  
  import javax.servlet.http.HttpServletRequest;
  
  import javax.xml.parsers.ParserConfigurationException;
  
  
  /**
   * Google Base API Application
   *
   */
  public class GoogleApiApp implements XPageApplication
  {
      private static final String TEMPLATE_PROJECT = "skin/plugins/googleapi/home.html";
      private static final String KEY_PAGE_TITLE = "googleapi.pageTitle";
      private static final String KEY_PAGE_PATH = "googleapi.pagePath";
      private static final String MARK_QUERY = "query";
      private static final String MARK_PROVIDER = "provider";
      private static final String MARK_ITEMS_LIST = "items_list";
      private static final String MARK_FEEDS_LIST = "feeds_list";
      private static final String PARAMETER_SEARCH = "search";
      private static final String PARAMETER_PROVIDER = "provider";
  
      /**
       * Build the XPage
       * @param request The HTTP request
       * @param nMode The current mode
       * @param plugin The current plugin
       * @return The XPage
       */
      public XPage getPage( HttpServletRequest request, int nMode, Plugin plugin )
      {
          XPage page = new XPage(  );
  
          Locale locale = request.getLocale(  );
          HashMap model = new HashMap(  );
  
          String strQuery = request.getParameter( PARAMETER_SEARCH );
          String strProvider = request.getParameter( PARAMETER_PROVIDER );
  
          FeedProvider fp = FeedsService.getInstance(  ).getProvider( strProvider );
  
          List<Item> listItems = new ArrayList<Item>(  );
  
          if ( strQuery != null )
          {
             try
             {
                 FeedsService.getInstance(  ).getItems( strQuery, listItems, fp );
             }
             catch ( ParserConfigurationException e )
             {
                 AppLogService.error( "Error retrieving items : " + e.getMessage(  ), e );
             }
             catch ( SAXException e )
             {
                 AppLogService.error( "Error retrieving items : " + e.getMessage(  ), e );
             }
             catch ( IOException e )
             {
                 AppLogService.error( "Error retrieving items : " + e.getMessage(  ), e );
             }
         }
 
         model.put( MARK_QUERY, ( strQuery != null ) ? strQuery : "" );
         model.put( MARK_PROVIDER, ( strProvider != null ) ? strProvider : "" );
         model.put( MARK_ITEMS_LIST, listItems );
         model.put( MARK_FEEDS_LIST, FeedsService.getInstance(  ).getProviders(  ) );
 
         HtmlTemplate template = AppTemplateService.getTemplate( TEMPLATE_PROJECT, locale, model );
         page.setContent( template.getHtml(  ) );
 
         // Set page title and path
         Object[] args = { model.get( "name" ) };
         String strTitle = I18nService.getLocalizedString( KEY_PAGE_TITLE, args, locale );
         String strPath = I18nService.getLocalizedString( KEY_PAGE_PATH, args, locale );
         page.setTitle( strTitle );
         page.setPathLabel( strPath );
 
         return page;
     }
 }