/**
    * Copyright 2012 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.
   *
   * Created by venkat on 11/27/12
   */
  package org.kuali.student.enrollment.class1.state.impl;
  
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.student.enrollment.courseoffering.dto.FormatOfferingInfo;
  import org.kuali.student.enrollment.courseoffering.service.CourseOfferingService;
  import org.kuali.student.r2.common.dto.ContextInfo;
  import org.kuali.student.r2.common.exceptions.DoesNotExistException;
  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.common.util.constants.CourseOfferingServiceConstants;
  import org.kuali.student.r2.core.class1.state.service.RelatedObjectHelper;
  
  import javax.xml.namespace.QName;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * This class implements RelatedObjectHelper to provide relation logic for Course Offerings and Format Offerings
   *
   * @author Kuali Student Team
   */
  public class RelatedObjectHelperCOtoFOImpl implements RelatedObjectHelper {
  
      private CourseOfferingService courseOfferingService;
  
      @Override
      public Map<String, String> getRelatedObjectsIdAndState(String entityId, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {
          //TODO - FIXME - these are expensive calls to get ids and states (should be done with one DB call using search)
          List<FormatOfferingInfo> formatOfferingInfos = getCourseOfferingService().getFormatOfferingsByCourseOffering(entityId, contextInfo);
          Map<String,String> idsAndState = new HashMap<String, String>();
          for (FormatOfferingInfo formatOfferingInfo : formatOfferingInfos) {
              idsAndState.put(formatOfferingInfo.getId(), formatOfferingInfo.getStateKey());
          }
          return idsAndState;
      }
  
      protected CourseOfferingService getCourseOfferingService(){
          if (courseOfferingService == null){
              courseOfferingService = (CourseOfferingService) GlobalResourceLoader.getService(new QName(CourseOfferingServiceConstants.NAMESPACE, CourseOfferingServiceConstants.SERVICE_NAME_LOCAL_PART));
          }
          return  courseOfferingService;
      }
  
  
  }