/**
    * Copyright 2011 The Kuali Foundation Licensed under the
    * Educational Community License, Version 2.0 (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.osedu.org/licenses/ECL-2.0
    *
    * 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.
   */
  
  package org.kuali.student.krms.termresolver;
  
  import org.kuali.rice.krms.api.engine.TermResolutionException;
  import org.kuali.rice.krms.api.engine.TermResolver;
  import org.kuali.student.common.util.krms.RulesExecutionConstants;
  import org.kuali.student.enrollment.academicrecord.dto.StudentCourseRecordInfo;
  import org.kuali.student.enrollment.courseregistration.dto.CourseRegistrationInfo;
  import org.kuali.student.enrollment.courseregistration.service.CourseRegistrationService;
  import org.kuali.student.krms.util.KSKRMSExecutionConstants;
  import org.kuali.student.krms.util.KSKRMSExecutionUtil;
  import org.kuali.student.r2.common.dto.ContextInfo;
  import org.kuali.student.r2.common.exceptions.InvalidParameterException;
  import org.kuali.student.r2.common.exceptions.MissingParameterException;
  import org.kuali.student.r2.common.exceptions.OperationFailedException;
  import org.kuali.student.r2.common.exceptions.PermissionDeniedException;
  import org.kuali.student.r2.core.atp.dto.MilestoneInfo;
  import org.kuali.student.r2.core.atp.service.AtpService;
  
  import java.util.Calendar;
  import java.util.Collections;
  import java.util.Date;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  public class EnrolledCourseByTermTermResolver implements TermResolver<List<CourseRegistrationInfo>> {	
  
      private CourseRegistrationService courseRegistrationService;
      
      
      public CourseRegistrationService getAcademicRecordService() {
          return courseRegistrationService;
      }
  
      public void setCourseRegistrationService(CourseRegistrationService courseRegistrationService) {
          this.courseRegistrationService = courseRegistrationService;
      }
  
      @Override
      public Set<String> getPrerequisites() {
          return Collections.singleton(RulesExecutionConstants.CONTEXT_INFO_TERM_NAME);
      }
  
      @Override
      public String getOutput() {
          return "EnrolledCourseByTermTermResolver.getOutput()";
      }
  
      @Override
      public Set<String> getParameterNames() {
          Set<String> temp = new HashSet<String>(1);
          temp.add(KSKRMSExecutionConstants.PERSON_ID_TERM_PROPERTY);
          temp.add(KSKRMSExecutionConstants.TERM_ID_TERM_PROPERTY);
          return Collections.unmodifiableSet(temp);
      }
  
      @Override
      public int getCost() {
          // TODO Analyze, though probably not much to check here
          return 5;
      }
  
      @Override
      public List<CourseRegistrationInfo> resolve(Map<String, Object> resolvedPrereqs, Map<String, String> parameters) throws TermResolutionException {
          ContextInfo context = (ContextInfo) resolvedPrereqs.get(RulesExecutionConstants.CONTEXT_INFO_TERM_NAME);
          String personId = parameters.get(KSKRMSExecutionConstants.PERSON_ID_TERM_PROPERTY);
          String termId = parameters.get(KSKRMSExecutionConstants.TERM_ID_TERM_PROPERTY);
          
          List<CourseRegistrationInfo> result = null;
          try {
              result = courseRegistrationService.getCourseRegistrationsByStudentAndTerm(personId, termId, context);
          } catch (Exception e) {
              KSKRMSExecutionUtil.convertExceptionsToTermResolutionException(parameters, e, this);
          }
          return result;
      }
  }