package org.kuali.ole.ingest.function;
   
   import org.apache.log4j.Logger;
   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 {
      private static final Logger LOG = Logger.getLogger(OleCurrentDateComparison.class);
      /**
       * This method takes the request and invoke the methods to checkMembershipExpirationDate.
       * @param arguments
       * @return  Object
       */
      @Override
      public Object invoke(Object... arguments) {
          LOG.info(" --------- Inside OleCurrentDateComparison ------------");
          boolean comparison = false;
          if(arguments!=null && arguments.length==1){
              Object object = arguments[0];
              if(object==null)
                  return false;
              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)object;
              }
              comparison =checkMembershipExpirationDate(expirationDate);
          }
  
          return comparison;
      }
  
      /**
       *  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;
      }
  }