/*
    * 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.systeminfo.web;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  import fr.paris.lutece.portal.business.right.Right;
  import fr.paris.lutece.portal.business.right.RightHome;
  import fr.paris.lutece.portal.business.user.AdminUser;
  import fr.paris.lutece.portal.service.dashboard.DashboardComponent;
  import fr.paris.lutece.portal.service.database.AppConnectionService;
  import fr.paris.lutece.portal.service.plugin.Plugin;
  import fr.paris.lutece.portal.service.plugin.PluginService;
  import fr.paris.lutece.portal.service.template.AppTemplateService;
  import fr.paris.lutece.util.html.HtmlTemplate;
  import fr.paris.lutece.util.url.UrlItem;
  
  /**
   * SystemInfo Dashboard Component
   */
  public class SystemInfoDashboardComponent extends DashboardComponent
  {
      private static final String TEMPLATE_DASHBOARD = "/admin/plugins/systeminfo/systeminfo_dashboard.html";
      private static final String MARK_MEMORY = "memory";
      private static final String MARK_CONNECTIONS = "connections";
      private static final String MARK_URL = "url";
      private static final String MARK_ICON = "icon";
      private static final String PLUGIN_NAME = "plugin_name";
  
      /**
       * The HTML code of the component
       * 
       * @param user  The Admin User
       * @param request The HTTP request
       * 
       * @return The dashboard component
       */
      @Override
      public String getDashboardData( AdminUser user, HttpServletRequest request )
      {
          Right right = RightHome.findByPrimaryKey( getRight( ) );
          Plugin plugin = PluginService.getPlugin( right.getPluginName( ) );
          UrlItem url = new UrlItem( right.getUrl( ) );
          url.addParameter( PLUGIN_NAME, right.getPluginName( ) );
  
          Map<String, Object> model = new HashMap<String, Object>( );
          model.put( MARK_MEMORY, getMemory( ) );
          model.put( MARK_CONNECTIONS, AppConnectionService.getPoolManager( ).getPoolsInfos( ) );
          model.put( MARK_URL, url.getUrl( ) );
          model.put( MARK_ICON, plugin.getIconUrl( ) );
  
          HtmlTemplate t = AppTemplateService.getTemplate( TEMPLATE_DASHBOARD, user.getLocale( ), model );
  
          return t.getHtml( );
      }
  
      /**
       * Get Memory information
       * @return The Memory information
       */
      private String getMemory( )
      {
          int nUsedMemory = (int) ( Runtime.getRuntime( ).totalMemory( ) / 1000000L );
          int nMaxMemory = (int) ( Runtime.getRuntime( ).maxMemory( ) / 1000000L );
  
         return "" + nUsedMemory + " / " + nMaxMemory;
     }
 }