package org.kuali.ole.ingest.function;
   
   import org.kuali.rice.krms.framework.engine.Function;
   
   import java.text.DateFormat;
   import java.text.ParseException;
   import java.text.SimpleDateFormat;
   import java.util.ArrayList;
   import java.util.Date;
  
  /**
   * PatronMembershipExpiration is used for validating checkMembershipExpirationDate
   */
  public class OleCurrentDateComparison implements Function {
      /**
       * This method takes the request and invoke the methods to checkMembershipExpirationDate.
       * @param arguments
       * @return  Object
       */
      @Override
      public Object invoke(Object... arguments) {
          Object argument = arguments[0];
          Object object = ((ArrayList) argument).get(0);
          Date expirationDate = null;
          if(object instanceof String){
              DateFormat formatter = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
              try {
                  expirationDate= (Date)formatter.parse((String)object);
              } catch (ParseException e) {
                  e.printStackTrace();
              }
  
          }else{
              expirationDate =(Date)((ArrayList) argument).get(0);
          }
  
          return checkMembershipExpirationDate(expirationDate);
      }
  
      /**
       *  This method check the membership ExpiryDate with current date.
       * @param expDate
       * @return  boolean
       */
      private boolean checkMembershipExpirationDate(Date expDate){
          Date curDat = new Date();
          if(expDate!=null && curDat.compareTo(expDate)>=0){
              return  true;
          }
          return false;
      }
  }