/*
    * 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.directory.utils.sort;
  
  import fr.paris.lutece.plugins.directory.business.EntryTypeGeolocation;
  import fr.paris.lutece.plugins.directory.business.IEntry;
  import fr.paris.lutece.plugins.directory.business.Record;
  import fr.paris.lutece.plugins.directory.business.RecordField;
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.util.sort.AttributeComparator;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.Date;
  import java.util.List;
  
  /**
   *
   * RecordComparator
   *
   */
  public class RecordComparator implements Comparator<Record>
  {
      private static final String CONSTANT_VALUE = "value";
      private static final String EMPTY_STRING = "";
      private IEntry _entry;
      private boolean _bIsAscSort;
  
      /**
       * Constructor
       * 
       * @param entry
       *            the entry to compare
       * @param bIsAscSort
       *            true if it is sorted asc, false otherwise
       */
      public RecordComparator( IEntry entry, boolean bIsAscSort )
      {
          _entry = entry;
          _bIsAscSort = bIsAscSort;
      }
  
      /**
       * Compare two records
       * 
       * @param r1
       *            Record 1
       * @param r2
       *            Record 2
       * @return negative value if r1 is before r2 in the alphabetical order, 0 if r1 equals r2, positive value if r1 is after r2
       */
      @Override
      public int compare( Record r1, Record r2 )
      {
          int nStatus = 0;
          RecordField rf1 = getRecordFieldToCompare( r1 );
          RecordField rf2 = getRecordFieldToCompare( r2 );
  
          if ( ( rf1 != null ) && ( rf2 != null ) )
          {
              if ( _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeDate )
              {
                  try
                  {
                      Long lTime1 = Long.parseLong( rf1.getValue( ) );
                      Date date1 = new Date( lTime1 );
                      Long lTime2 = Long.parseLong( rf2.getValue( ) );
                     Date date2 = new Date( lTime2 );
                     nStatus = date1.compareTo( date2 );
                 }
                 catch( Exception e )
                 {
                     AppLogService.error( e );
                 }
             }
             else
                 if ( _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeNumbering )
                 {
                     try
                     {
                         nStatus = Integer.parseInt( rf1.getValue( ) ) - Integer.parseInt( rf2.getValue( ) );
                     }
                     catch( Exception e )
                     {
                         AppLogService.error( e );
                     }
                 }
                 else
                 {
                     if ( ( rf1.getValue( ) == null ) && ( rf2.getValue( ) != null ) )
                     {
                         nStatus = -1;
                     }
                     else
                         if ( ( rf1.getValue( ) != null ) && ( rf2.getValue( ) == null ) )
                         {
                             nStatus = 1;
                         }
                         else
                             if ( ( rf1.getValue( ) != null ) && ( rf2.getValue( ) != null ) )
                             {
                                 nStatus = rf1.getValue( ).compareToIgnoreCase( rf2.getValue( ) );
                             }
                 }
         }
 
         if ( !_bIsAscSort )
         {
             nStatus = nStatus * ( -1 );
         }
 
         return nStatus;
     }
 
     /**
      * Get the record field
      * 
      * @param r
      *            Record
      * @return RecordField
      */
     private RecordField getRecordFieldToCompare( Record r )
     {
         RecordField rf = null;
 
         if ( _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeCheckBox
                 || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeSelect )
         {
             List<RecordField> listRecordFields = new ArrayList<RecordField>( );
 
             for ( RecordField recordField : r.getListRecordField( ) )
             {
                 if ( recordField.getEntry( ).getIdEntry( ) == _entry.getIdEntry( ) )
                 {
                     if ( recordField.getValue( ) == null )
                     {
                         recordField.setValue( EMPTY_STRING );
                     }
 
                     listRecordFields.add( recordField );
                 }
             }
 
             Collections.sort( listRecordFields, new AttributeComparator( CONSTANT_VALUE, _bIsAscSort ) );
 
             if ( listRecordFields.size( ) > 0 )
             {
                 rf = listRecordFields.get( 0 );
             }
         }
         else
             if ( _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeGeolocation )
             {
                 for ( RecordField recordField : r.getListRecordField( ) )
                 {
                     if ( ( recordField.getEntry( ).getIdEntry( ) == _entry.getIdEntry( ) )
                             && recordField.getField( ).getTitle( ).equals( EntryTypeGeolocation.CONSTANT_ADDRESS ) )
                     {
                         rf = recordField;
                     }
                 }
             }
             else
                 if ( _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeDate
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeDirectory
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeMail
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeUrl
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeNumbering
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeSQL
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeText
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeTextArea
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeRadioButton
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeRichText
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeInternalLink
                         || _entry instanceof fr.paris.lutece.plugins.directory.business.EntryTypeMyLuteceUser )
                 {
                     for ( RecordField recordField : r.getListRecordField( ) )
                     {
                         if ( recordField.getEntry( ).getIdEntry( ) == _entry.getIdEntry( ) )
                         {
                             rf = recordField;
                         }
                     }
                 }
 
         return rf;
     }
 }