package org.kuali.student.enrollment.class2.acal.service;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.Map;

 import javax.xml.namespace.QName;

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

 import org.kuali.rice.krad.maintenance.MaintenanceDocument;

 import org.kuali.rice.krad.maintenance.MaintainableImpl;

 import org.kuali.rice.krad.util.KRADConstants;

 import org.kuali.student.enrollment.acal.service.AcademicCalendarService;

 import org.kuali.student.enrollment.acal.dto.AcademicCalendarInfo;

 import org.kuali.student.r2.common.dto.ContextInfo;

 import org.kuali.student.r2.common.exceptions.*;

 import org.kuali.student.r2.common.util.constants.AtpServiceConstants;

 public class AcademicCalendarInfoMaintainableImpl extends MaintainableImpl {

         private static final long serialVersionUID = 1L;        

     public final static String ACADEMIC_CALENDAR_KEY_PREFIX = "kuali.academic.calendar.";

     public final static String CREDENTIAL_PROGRAM_TYPE_KEY_PREFIX = "kuali.lu.type.credential.";

     private transient AcademicCalendarService academicCalendarService;

     @Override

     public void saveDataObject() {

         AcademicCalendarInfo academicCalendarInfo = (AcademicCalendarInfo)getDataObject();

         String academicCalendarKey = getAcademicCalendarKey (academicCalendarInfo);

         academicCalendarInfo.setId(academicCalendarKey);

         academicCalendarInfo.setStateKey(AtpServiceConstants.ATP_OFFICIAL_STATE_KEY);

         System.out.println(">>>>adminOrgId = "+academicCalendarInfo.getAdminOrgId());

         try{

                 if(getMaintenanceAction().equals(KRADConstants.MAINTENANCE_NEW_ACTION) ||

                 getMaintenanceAction().equals(KRADConstants.MAINTENANCE_COPY_ACTION)) {   

                         getAcademicCalendarService().createAcademicCalendar(academicCalendarKey, academicCalendarInfo, new ContextInfo());

                 }

                 else {

                         getAcademicCalendarService().updateAcademicCalendar(academicCalendarKey, academicCalendarInfo, new ContextInfo());

                 }

         }catch (DataValidationErrorException dvee){

         }catch (InvalidParameterException ipe){

         }catch (MissingParameterException mpe){

         }catch (OperationFailedException ofe){

         }catch (PermissionDeniedException pde){

         }catch (ReadOnlyException roe){

         }catch (DoesNotExistException dee){

         }catch (VersionMismatchException vme){

         }       

     }

     @Override

     public Object retrieveObjectForEditOrCopy(MaintenanceDocument document, Map<String, String> dataObjectKeys) {

             ContextInfo context = new ContextInfo();

             try{

                     return getAcademicCalendarService().getAcademicCalendar(dataObjectKeys.get("key"), context);

         }catch (InvalidParameterException ipe){

         }catch (MissingParameterException mpe){

         }catch (OperationFailedException ofe){

         }catch (PermissionDeniedException pde){

         }catch (DoesNotExistException dee){

         }

         return null;

     }

     /**

      * @see org.kuali.rice.kns.maintenance.KualiMaintainableImpl#prepareForSave()

      */

     @Override

     public void prepareForSave() {

             System.out.println (">>> in prepareForSave ");

         if (getMaintenanceAction().equalsIgnoreCase(KRADConstants.MAINTENANCE_NEW_ACTION)) {

                 AcademicCalendarInfo newAcal = (AcademicCalendarInfo)getDataObject();           

                 newAcal.setTypeKey("kuali.atp.type.AcademicCalendar");

             newAcal.setStateKey(AtpServiceConstants.ATP_OFFICIAL_STATE_KEY);

         }

         super.prepareForSave();

     }

     protected AcademicCalendarService getAcademicCalendarService() {

          if(academicCalendarService == null) {

                  academicCalendarService = (AcademicCalendarService) GlobalResourceLoader.getService(new QName("http://student.kuali.org/wsdl/acal","AcademicCalendarService"));

         }

         return academicCalendarService;

     }

     /*

      *  Based on Norm's suggestion at 

      *  https://wiki.kuali.org/display/STUDENT/How+to+Calculate+Keys+for+Academic+Calendar+Entities

      *  AcademicCalendarKey should be 

      *  kuali.academic.calendar.<last part of credentialProgramTypeKey>.<yearOfStartDate>-<yearOfEndDate>

      */

     private String getAcademicCalendarKey(AcademicCalendarInfo academicCalendarInfo){

         String academicCalendarKey = new String (ACADEMIC_CALENDAR_KEY_PREFIX);

         String adminOrg;

         String adminOrgId = academicCalendarInfo.getAdminOrgId();

         if (adminOrgId.startsWith(CREDENTIAL_PROGRAM_TYPE_KEY_PREFIX)){

             adminOrg  = adminOrgId.substring(25);

         }

         else {

             adminOrg = adminOrgId;

         }        

         String yearOfStartDate = getYearFromDate(academicCalendarInfo.getStartDate());

         String yearOfEndDate = getYearFromDate(academicCalendarInfo.getEndDate());

         academicCalendarKey = academicCalendarKey.concat(adminOrg.toLowerCase()+"."+yearOfStartDate+"-"+yearOfEndDate);

         return academicCalendarKey;       

     }

     private String getYearFromDate(Date date){

             Calendar cal = Calendar.getInstance();

             cal.setTime(date);

             int year = cal.get(Calendar.YEAR);

             return new Integer(year).toString();

     }

 }