/*
    * 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.grustorageelastic.util;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.Map.Entry;
  
  import org.apache.commons.lang.StringUtils;
  
  import com.fasterxml.jackson.core.JsonGenerationException;
  import com.fasterxml.jackson.databind.JsonMappingException;
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  import fr.paris.lutece.plugins.libraryelastic.business.search.BoolQuery;
  import fr.paris.lutece.plugins.libraryelastic.business.search.MatchLeaf;
  import fr.paris.lutece.plugins.libraryelastic.business.search.SearchRequest;
  import fr.paris.lutece.plugins.libraryelastic.business.suggest.CompletionSuggestRequest;
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.portal.service.util.AppPropertiesService;
  
  /**
   * Util class for elastic request
   */
  public final class ElasticSearchParameterUtil
  {
      // MARKERS
      public static final String MARKER_AUTOCOMPLETE = "autocomplete";
      public static final String MARKER_ITEM = "item";
      public static final String MARKER_ELEMENTS = "elements";
      public static final String MARKER_PAYLOAD = "payload";
  
      // CONSTANTS
      private static final String SIZE_ELK_SEARCH_PARAM_VALUE = "grustorage-elastics.sizeSearchParamValue";
  
      // PROPERTIES KEYS
      private static final String URL_ELK_SERVER = "grustorage-elastics.urlElk";
      private static final String PATH_ELK_INDEX = "grustorage-elastics.index";
      private static final String PATH_ELK_TYPE_USER = "grustorage-elastics.typeUser";
  
      // PATHS
      public static final String PROP_URL_ELK_SERVER = AppPropertiesService.getProperty( URL_ELK_SERVER );
      public static final String PROP_PATH_ELK_INDEX = AppPropertiesService.getProperty( PATH_ELK_INDEX );
      public static final String PROP_PATH_ELK_TYPE_USER = AppPropertiesService.getProperty( PATH_ELK_TYPE_USER );
  
      /**
       * Instantiates a new GRU elastics constants.
       */
      private ElasticSearchParameterUtil( )
      {
      }
  
      /**
       * Format auto complete search.
       *
       * @param champ
       *            the champ
       * @return the string
       * @throws JsonGenerationException
       *             the json generation exception
       * @throws JsonMappingException
       *             the json mapping exception
       * @throws IOException
       *             Signals that an I/O exception has occurred.
       */
      public static CompletionSuggestRequest buildAutoCompleteSearch( String champ )
      {
         CompletionSuggestRequest suggest = new CompletionSuggestRequest( );
         suggest.setMatchType( "text" );
         suggest.setMatchValue( champ );
         suggest.setSize( 15 );
 
         return suggest;
     }
 
     /**
      * Build a search requet for elasticsearch.
      *
      * @param map
      *            the map
      * @return the string
      * @throws JsonGenerationException
      *             the json generation exception
      * @throws JsonMappingException
      *             the json mapping exception
      * @throws IOException
      *             Signals that an I/O exception has occurred.
      */
     public static SearchRequest buildSearchRequest( Map<String, String> map )
     {
         SearchRequest root = new SearchRequest( );
         BoolQuery query = new BoolQuery( );
         for ( Entry<String, String> searchParam : map.entrySet( ) )
         {
             query.addShould( new MatchLeaf( searchParam.getKey( ), searchParam.getValue( ) ) );
         }
 
         root.setSearchQuery( query );
 
         if ( StringUtils.isNotBlank( AppPropertiesService.getProperty( SIZE_ELK_SEARCH_PARAM_VALUE ) ) )
         {
             root.setSize( Integer.parseInt( AppPropertiesService.getProperty( SIZE_ELK_SEARCH_PARAM_VALUE ) ) );
         }
 
         return root;
     }
 
     /**
      * Sets the json to json tree.
      *
      * @param strJson
      *            the str json
      * @return the json node
      */
     public static JsonNode setJsonToJsonTree( String strJson )
     {
         ObjectMapper mapper = new ObjectMapper( );
         JsonNode tmp = null;
 
         try
         {
             tmp = mapper.readTree( strJson );
         }
         catch( IOException ex )
         {
             AppLogService.error( ex + " :" + ex.getMessage( ), ex );
         }
 
         return tmp;
     }
 
 }