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

 /*

  * Copyright 2007 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 1.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.opensource.org/licenses/ecl1.php

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 import org.apache.commons.lang.StringUtils;

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

 import org.kuali.rice.core.api.util.ConcreteKeyValue;

 import org.kuali.rice.core.api.util.KeyValue;

 import org.kuali.rice.krad.keyvalues.KeyValuesBase;

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

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

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

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

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

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

 import javax.xml.namespace.QName;

 import java.io.Serializable;

 import java.util.ArrayList;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.List;

 public class TermKeyValues extends KeyValuesBase implements Serializable {

     private static final long serialVersionUID = 1L;

     private transient AcademicCalendarService acalService;

     @Override

     /*

      * Return a list of terms that belong to the Academic Year with the start year equal to the current year.

      *

      * From Bonnie: The current implementation has some problems.

      * For instance, in Jan 2012, although we are still in Academic Calendar 2011 - 2012, probably the term of

      * Spring 2012, the current implementation can't display terms of Academic Calendar 2011 - 2012, but can

      * only display terms of Academic Calendar 2012 - 2013.

      */

     public List<KeyValue> getKeyValues() {

         List<AcademicCalendarInfo> acals = new ArrayList<AcademicCalendarInfo>();

         ContextInfo context = new ContextInfo();

         List<TermInfo> terms = new ArrayList<TermInfo>();

         try {

             Calendar nowCal = Calendar.getInstance();

             nowCal.setTime(new Date());

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

             acals.addAll(getAcalService().getAcademicCalendarsByStartYear(year - 1, context));

             acals.addAll(getAcalService().getAcademicCalendarsByStartYear(year, context));

             acals.addAll(getAcalService().getAcademicCalendarsByStartYear(year+1, context));

             for (AcademicCalendarInfo acal : acals) {

                 if (StringUtils.equals(acal.getStateKey(), AtpServiceConstants.ATP_OFFICIAL_STATE_KEY)){

                     terms.addAll(getAcalService().getTermsForAcademicCalendar(acal.getId(), context));

                 }

             }

             // TODO: remove this when we figure out why KRAD defaultValue property is not working

             for (TermInfo term : terms) {

                 if ("testTermId1".equals(term.getId())) {

                     terms.remove(term);

                     terms.add(0, term);

                     break;

                 }

             }

         } catch (DoesNotExistException e) {

             throw new RuntimeException("No Terms found for current AcademicCalendar(s)! There should be some in the database.", e);

         } catch (InvalidParameterException e) {

             throw new RuntimeException(e);

         } catch (MissingParameterException e) {

             throw new RuntimeException(e);

         } catch (OperationFailedException e) {

             throw new RuntimeException(e);

         } catch (PermissionDeniedException e) {

             throw new RuntimeException(e);

         }

         List<KeyValue> keyValues = new ArrayList<KeyValue>();

         for(TermInfo term : terms) {

             keyValues.add(new ConcreteKeyValue(term.getId(), term.getName()));

         }

         return keyValues;

     }

     protected AcademicCalendarService getAcalService() {

         if(acalService == null) {

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

         }

         return this.acalService;

     }

 }