package org.kuali.ole.ingest.function;
   
   //import org.kuali.incubator.SolrRequestReponseHandler;
   
   import org.apache.log4j.Logger;
   import org.kuali.ole.DataCarrierService;
   import org.kuali.ole.OLEConstants;
   import org.kuali.ole.editor.service.DiscoveryHelperService;
   import org.kuali.ole.ingest.ISBNUtil;
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.rice.krms.framework.engine.Function;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * ISBNFunction takes the request,normalize tha isbn and sets the bibRecordFromSOLRResponse into dataCarrierService
   */
  public class ISBNFunction implements Function {
  
      private DiscoveryHelperService discoveryHelperService;
      private static final Logger LOG = Logger.getLogger(ISBNFunction.class);
  
      /**
       *  This method takes the request and normalize the isbn and  sets the bibRecordFromSOLRResponse into dataCarrierService.
       * @param arguments
       * @return  Object
       */
      @Override
      public Object invoke(Object... arguments) {
          LOG.info(" -----------------> inside isbn function ------------> ");
          DataCarrierService dataCarrierService = GlobalResourceLoader.getService(OLEConstants.DATA_CARRIER_SERVICE);
          Object argument = arguments[0];
          String existingDocstoreField = (String)((ArrayList) argument).get(0);
          String isbn = (String)((ArrayList) argument).get(1);
          String normalizedISBN = null;
          try {
              normalizedISBN = new ISBNUtil().normalizeISBN(isbn);
          } catch (Exception e) {
              System.out.println(e.getMessage());
          }
          List list = getDiscoveryHelperService().getResponseFromSOLR(existingDocstoreField, normalizedISBN);
          LOG.info(" ---------------> list.size ------------> " + list.size());
          if(list.size() >= 1){
              LOG.info(" inside if condition of list --------------------> ");
              dataCarrierService.addData(OLEConstants.BIB_INFO_LIST_FROM_SOLR_RESPONSE, list);
              return true;
          }
          return false;
      }
  
      /**
       *  Gets the discoveryHelperService instances
       * @return  DiscoveryHelperService
       */
      public DiscoveryHelperService getDiscoveryHelperService() {
          if (null == discoveryHelperService) {
              discoveryHelperService = new DiscoveryHelperService();
          }
          return discoveryHelperService;
      }
  
      /**
       *   Sets the discoveryHelperService attribute value.
       * @param discoveryHelperService
       */
      public void setDiscoveryHelperService(DiscoveryHelperService discoveryHelperService) {
          this.discoveryHelperService = discoveryHelperService;
      }
  }