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

 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.uif.control.UifKeyValuesFinderBase;

 import org.kuali.rice.krad.uif.view.ViewModel;

 import org.kuali.student.enrollment.acal.constants.AcademicCalendarServiceConstants;

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

 import org.kuali.student.enrollment.class2.acal.dto.AcademicTermWrapper;

 import org.kuali.student.enrollment.class2.acal.form.AcademicCalendarForm;

 import org.kuali.student.r2.common.constants.CommonServiceConstants;

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

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

 import org.kuali.student.r2.core.type.dto.TypeInfo;

 import javax.xml.namespace.QName;

 import java.io.Serializable;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 public class AcademicTermTypeKeyValues extends UifKeyValuesFinderBase implements Serializable {

     private static final long serialVersionUID = 1L;

     private transient AcademicCalendarService acalService;

     private static List<TypeInfo> acalTermTypes;

     @Override

     public List<KeyValue> getKeyValues(ViewModel model) {

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

         List<String> availableTermTypes = new ArrayList();

         if (model instanceof AcademicCalendarForm){

             AcademicCalendarForm acalForm = (AcademicCalendarForm)model;

             for (AcademicTermWrapper termWrapper : acalForm.getTermWrapperList()) {

                  availableTermTypes.add(termWrapper.getTermType());

             }

         }

         keyValues.add(new ConcreteKeyValue("", "Select Term Type"));

         List<TypeInfo> types = null;

         try {

             types = getAcalTermTypes();

             for (TypeInfo type : types) {

                 if (!availableTermTypes.contains(type.getKey())){

                     ConcreteKeyValue keyValue = new ConcreteKeyValue();

                     keyValue.setKey(type.getKey());

                     keyValue.setValue(type.getName());

                     keyValues.add(keyValue);

                 }

             }

         } catch (Exception e) {

             throw new RuntimeException(e);

         }

         return keyValues;

     }

     private List<TypeInfo> getAcalTermTypes() throws InvalidParameterException, MissingParameterException, DoesNotExistException, PermissionDeniedException, OperationFailedException {

         if(acalTermTypes == null) {

             //TODO:Build real context.

             ContextInfo context = new ContextInfo();

             acalTermTypes = Collections.unmodifiableList(getAcalService().getTermTypesForAcademicCalendarType(AcademicCalendarServiceConstants.ACADEMIC_CALENDAR_TYPE_KEY, context));

         }

         return acalTermTypes;  //To change body of created methods use File | Settings | File Templates.

     }

     public AcademicCalendarService getAcalService() {

         if(acalService == null) {

             acalService = (AcademicCalendarService) GlobalResourceLoader.getService(new QName(CommonServiceConstants.REF_OBJECT_URI_GLOBAL_PREFIX + "acal", "AcademicCalendarService"));

         }

         return this.acalService;

     }

 }