/*
    * Copyright (c) 2002-2020, City of 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.lutecetools.web;
  
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.commons.fileupload.FileItem;
  
  import fr.paris.lutece.plugins.lutecetools.service.Globals;
  import fr.paris.lutece.plugins.lutecetools.service.LutecetoolsAsynchronousUploadHandler;
  import fr.paris.lutece.plugins.lutecetools.service.XMLParser;
  import fr.paris.lutece.portal.service.spring.SpringContextService;
  import fr.paris.lutece.portal.util.mvc.commons.annotations.Action;
  import fr.paris.lutece.portal.util.mvc.commons.annotations.View;
  import fr.paris.lutece.portal.util.mvc.xpage.MVCApplication;
  import fr.paris.lutece.portal.util.mvc.xpage.annotations.Controller;
  import fr.paris.lutece.portal.web.xpages.XPage;
  
  /**
   * This class provides a simple implementation of an XPage
   */
  @Controller( xpageName = "pomupdate", pageTitleI18nKey = "lutecetools.xpage.pomupdate.pageTitle", pagePathI18nKey = "lutecetools.xpage.pomupdate.pagePath" )
  public class PomUpdateApp extends MVCApplication
  {
      private static final long serialVersionUID = 1871701739284867751L;
      private static final String TEMPLATE_XPAGE = "/skin/plugins/lutecetools/pomupdate.html";
      private static final String VIEW_HOME = "home";
  
      private static final String MARK_OUTPUT = "output";
      private static final String MARK_HANDLER = "handler";
      private static final String MARK_WARNING = "warning";
  
      private static final String INPUT_FIELD_NAME = "source";
      private static final String ACTION_PROCESS = "process";
  
      private static final String ERROR_XML_PARSING = "Parsing error";
      private static final String CANCELLED = "Cancelled";
      private static final String ERROR_FILE_EXTENSION = "Wrong file extension";
      private static final String ERROR_EMPTY_FIELD = "Empty field";
  
      private LutecetoolsAsynchronousUploadHandler _lutecetoolsAsynchronousUploadHandler = SpringContextService
              .getBean( LutecetoolsAsynchronousUploadHandler.BEAN_NAME );
      private String _strOutput = "";
  
      /**
       * Returns the content of the page pomupdate.
       * 
       * @param request
       *            The HTTP request
       * @return The view
       */
      @View( value = VIEW_HOME, defaultView = true )
      public XPage viewHome( HttpServletRequest request )
      {
          Map<String, Object> model = getModel( );
  
          if ( !Globals._strWarningPomMessage.isEmpty( ) )
          {
              model.put( MARK_WARNING, Globals._strWarningPomMessage );
              Globals._strWarningPomMessage = "";
          }
          model.put( MARK_HANDLER, _lutecetoolsAsynchronousUploadHandler );
          model.put( MARK_OUTPUT, _strOutput );
  
          return getXPage( TEMPLATE_XPAGE, request.getLocale( ), model );
      }
 
     @Action( ACTION_PROCESS )
     public XPage process( HttpServletRequest request )
     {
         FileItem fileInput = _lutecetoolsAsynchronousUploadHandler.getFile( request, INPUT_FIELD_NAME );
 
         if ( fileInput != null )
         {
             if ( fileInput.getContentType( ).endsWith( "xml" ) )
             {
                 _strOutput = XMLParser.updatePOM( fileInput );
                 if ( _strOutput.isEmpty( ) )
                 {
                     _strOutput = ERROR_XML_PARSING;
                 }
                 else
                     if ( _strOutput.equals( CANCELLED ) )
                     {
                         _strOutput = CANCELLED;
                     }
             }
             else
             {
                 _strOutput = ERROR_FILE_EXTENSION;
             }
         }
         else
         {
             _strOutput = ERROR_EMPTY_FIELD;
         }
 
         return redirectView( request, VIEW_HOME );
     }
 }