/*
    * Copyright (c) 2002-2014, 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.dila.service.impl;
  
  import fr.paris.lutece.plugins.dila.business.fichelocale.dao.ILocalFolderDAO;
  import fr.paris.lutece.plugins.dila.business.fichelocale.dto.LocalFolderDTO;
  import fr.paris.lutece.plugins.dila.service.IDilaLocalFolderService;
  
  import java.io.Serializable;
  import java.util.List;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.xml.parsers.DocumentBuilder;
  
  import org.apache.commons.lang.StringUtils;
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.NodeList;
  
  
  /**
   * Implementation of {@link IDilaLocalFolderService}
   */
  public class DilaLocalFolderService implements IDilaLocalFolderService, Serializable
  {
      private static final String SEQ_ATTRIBUTE = "seq";
      private static final String TITLE_TAG = "Titre";
      private static final String ID_ATTRIBUTE = "ID";
      private static final String FOLDER_TAG = "Dossier";
  
      /** The serial ID */
      private static final long serialVersionUID = -8207832026211506607L;
      @Inject
      @Named( "dilaLocalFolderDAO" )
      private ILocalFolderDAO _dilaLocalFolderDAO;
  
      /**
       * {@inheritDoc}
       */
      @Override
      public Long create( LocalFolderDTO dossier )
      {
          return _dilaLocalFolderDAO.create( dossier );
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public Long findFolderIdByLocalId( String idLocal )
      {
          return _dilaLocalFolderDAO.findFolderIdByLocalId( idLocal );
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void delete( Long localFolderId )
      {
          _dilaLocalFolderDAO.delete( localFolderId );
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
     public LocalFolderDTO findFolderByLocalId( Long idLocal )
     {
         return _dilaLocalFolderDAO.findFolderByLocalId( idLocal );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void update( LocalFolderDTO folder )
     {
         _dilaLocalFolderDAO.store( folder );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public Document insertFolderLinks( String parentId, DocumentBuilder builder, Document document )
     {
         List<LocalFolderDTO> folderList = this.findLocalFoldersByParentTheme( parentId );
 
         for ( LocalFolderDTO currentFolder : folderList )
         {
             NodeList folders = document.getElementsByTagName( FOLDER_TAG );
             Element newFolder = document.createElement( FOLDER_TAG );
             newFolder.setAttribute( ID_ATTRIBUTE, currentFolder.getLocalDTO( ).getId( ).toString( ) );
 
             Element newTitle = document.createElement( TITLE_TAG );
             newTitle.setTextContent( currentFolder.getLocalDTO( ).getTitle( ) );
             newFolder.appendChild( newTitle );
 
             boolean hasToShift = false;
 
             for ( int i = 0; i < folders.getLength( ); i++ )
             {
                 Element folderElement = (Element) folders.item( i );
                 String seq = folderElement.getAttribute( SEQ_ATTRIBUTE );
 
                 if ( folderElement.getAttribute( ID_ATTRIBUTE ).equals( currentFolder.getSiblingFolderId( ) ) )
                 {
                     if ( currentFolder.getPosition( ) == 1 )
                     {
                         if ( StringUtils.isNotBlank( seq ) )
                         {
                             newFolder.setAttribute( SEQ_ATTRIBUTE, "" + Integer.parseInt( seq ) );
                             folderElement.setAttribute( SEQ_ATTRIBUTE, "" + ( Integer.parseInt( seq ) + 1 ) );
                         }
 
                         folderElement.getParentNode( ).insertBefore( newFolder, folderElement );
                     }
                     else
                     {
                         if ( StringUtils.isNotBlank( seq ) )
                         {
                             newFolder.setAttribute( SEQ_ATTRIBUTE, "" + ( Integer.parseInt( seq ) + 1 ) );
                         }
 
                         folderElement.getParentNode( ).insertBefore( newFolder, folderElement.getNextSibling( ) );
                     }
 
                     i++;
                     hasToShift = true;
                 }
                 else if ( hasToShift && ( StringUtils.isNotBlank( seq ) ) )
                 {
                     folderElement.setAttribute( SEQ_ATTRIBUTE, "" + ( Integer.parseInt( seq ) + 1 ) );
                 }
             }
             //if folder was not added, we add it at the end
             if ( !hasToShift )
             {
                 Element folderElement = (Element) folders.item( folders.getLength( ) - 1 );
                 folderElement.getParentNode( ).insertBefore( newFolder, null );
             }
 
             document.getDocumentElement( ).normalize( );
         }
 
         return document;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public List<LocalFolderDTO> findLocalFoldersByParentTheme( String idParent )
     {
         return _dilaLocalFolderDAO.findLocalFoldersByParentTheme( idParent );
     }
 }