package org.kuali.ole.service;
   
   import org.kuali.ole.loan.bo.OleLoanDocument;
   import org.kuali.ole.patron.bo.OlePatronBo;
   import org.kuali.ole.patron.bo.OlePatronDocument;
   import org.kuali.rice.krad.service.KRADServiceLocator;
   
   import java.sql.Timestamp;
   import java.text.ParseException;
  import java.text.SimpleDateFormat;
  import java.util.*;
  
  /**
   * Created with IntelliJ IDEA.
   * User: Bala.km
   * Date: 7/2/12
   * Time: 2:04 PM
   * Service class to provide input to the krms rule engine for loans circulation policy
   */
  public class OleCirculationPolicyServiceImpl implements OleCirculationPolicyService {
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(OleLocationServiceImpl.class);
  
      /**
       *  This method checks valid patron code using patron barcode.
       * @param patronBarcode
       * @return boolean
       */
      @Override
      public boolean isValidBarcode(String patronBarcode) {
          return true;
      }
  
      /**
       *  This method returns MembershipExpireDate using patronBarcode.
       * @param patronBarcode
       * @return Date
       */
      @Override
      public Date getPatronMembershipExpireDate(String patronBarcode) {
          Date expirationDate=null;
          try{
              Map<String, String> criteria = new HashMap<String, String>();
              criteria.put("barcode", patronBarcode);
              List<OlePatronDocument> olePatronDocument = (List<OlePatronDocument>)  KRADServiceLocator.getBusinessObjectService().findMatching(OlePatronDocument.class,criteria);
              if(olePatronDocument.size()==1) {
                  expirationDate = olePatronDocument.get(0).getExpirationDate();
              }
          }catch(Exception e){
              LOG.error(e.getMessage());
          }
          return expirationDate;
      }
  
      /**
       *  This method returns number of items loaned for a particular patron id.
       * @param olePatronId
       * @return int
       */
      @Override
      public int getNoOfItemsLoaned(String olePatronId) {
          Map<String, String> criteria = new HashMap<String, String>();
          Collection<OleLoanDocument> oleLoanDocuments=null;
          try{
              criteria.put("patronId", olePatronId);
              oleLoanDocuments = KRADServiceLocator.getBusinessObjectService().findMatching(OleLoanDocument.class,criteria);
          }catch(Exception e){
              LOG.error(e.getMessage());
          }
          return oleLoanDocuments!=null ?oleLoanDocuments.size()+1:0;
      }
  
      /**
       *  This method returns loan due date using loan period.
       * @param loanPeriod
       * @return  Timestamp
       */
      @Override
      public Timestamp calculateLoanDueDate(String loanPeriod) {
          String loanPeriodType[]=null;
          Timestamp dueDate = null;
          Calendar calendar = Calendar.getInstance();
          if(loanPeriod != null && loanPeriod.trim().length()>0){
              loanPeriodType =  loanPeriod.split("-");
              int loanPeriodValue =  Integer.parseInt(loanPeriodType[0].toString());
              String loanPeriodTypeValue =  loanPeriodType[1].toString();
              if(loanPeriodTypeValue.equalsIgnoreCase("MINUTE")){
                  calendar.add(Calendar.MINUTE, loanPeriodValue);
              } else if(loanPeriodTypeValue.equalsIgnoreCase("HOUR")) {
                  calendar.add(Calendar.HOUR, loanPeriodValue);
              } else if(loanPeriodTypeValue.equalsIgnoreCase("WEEK")) {
                  calendar.add(Calendar.WEEK_OF_MONTH, loanPeriodValue);
              } else {
                  calendar.add(Calendar.DATE, loanPeriodValue);
              }
              dueDate =  new java.sql.Timestamp(calendar.getTime().getTime());
          }
          return dueDate;
      }
  }