/**
    * Copyright 2011-2014 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.mobility.computerlabs.dao;
  
  import org.apache.commons.collections.CollectionUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.kuali.mobility.computerlabs.entity.Lab;
  import org.kuali.mobility.computerlabs.entity.LabGroup;
  import org.kuali.mobility.computerlabs.entity.LabGroupImpl;
  import org.kuali.mobility.computerlabs.entity.Location;
  import org.kuali.mobility.computerlabs.util.*;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.ApplicationContextAware;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  public class ComputerLabsDaoImpl implements ComputerLabsDao, ApplicationContextAware {
  	private static final Logger LOG = LoggerFactory.getLogger(ComputerLabsDaoImpl.class);
  
  	private ApplicationContext applicationContext;
  	private List<? extends LabGroup> labGroups;
  
  	@Override
  	public Lab getLab( String labUid ) {
  		Lab myLab = null;
  		for( LabGroup g : getLabGroups() ) {
  			for( Location l : g.getLocations() ) {
  				Collection<? extends Lab> myLabs = CollectionUtils.select( l.getLabs(), new LabPredicate( null, labUid ) );
  				if( null != myLabs && myLabs.size() > 0 ) {
  					myLab = (Lab)(myLabs.toArray())[0];
  					break;
  				}
  			}
  		}
  		if( myLab == null ) {
  			LOG.error( "Lab not found for UID "+labUid );
  		}
  		return myLab;
  	}
  
  	@Override
  	public List<? extends Lab> getLabs( String locationId, String buildingCode ) {
  		List<? extends Lab> myLabs = new ArrayList<Lab>();
  		for( LabGroup g : getLabGroups() ) {
  			Collection<? extends Location> myLocations = CollectionUtils.select( g.getLocations(), new LocationPredicate( locationId ));
  			for( Location l : myLocations ) {
  				myLabs.addAll( CollectionUtils.select( l.getLabs(), new LabPredicate( buildingCode, null ) ) );
  			}
  		}
  		return myLabs;
  	}
  
  	@Override
  	public List<? extends Location> getLocations( String groupId ) {
  		List<? extends Location> myLocations;
          if( null == groupId ) {
              myLocations = new ArrayList<Location>();
              for( LabGroup group : getLabGroups() ) {
                  myLocations.addAll( CollectionUtils.collect(group.getLocations(),new LocationTransform()));
              }
          } else {
              LabGroup myGroup;
              myGroup = getLabGroup( groupId );
              myLocations = myGroup.getLocations();
          }
  		return myLocations;
  	}
  
  	@Override
  	public List<? extends LabGroup> getLabGroups() {
  		if( labGroups == null ) {
  			List<LabGroupImpl> myLabGroups = new ArrayList<LabGroupImpl>();
  			labGroups = myLabGroups;
  		}
  		return labGroups;
  	}
  
  	@Override
  	public LabGroup getLabGroup(String groupId) {
  		LabGroup myGroup = null;
  		Collection<? extends LabGroup> myGroups = CollectionUtils.select( getLabGroups(), new LabGroupPredicate( groupId ) );
  
  		if( myGroups != null ) {
 			if( myGroups.size() > 1 ) {
 				LOG.debug( "Multiple groups found for id. This shouldn't happen." );
 			} else {
 				LabGroupTransform transform = new LabGroupTransform();
 				for( Object obj : myGroups ) {
 					myGroup = transform.transform(obj);
 				}
 			}
 		}
 		return myGroup;
 	}
 
 	/**
 	 * @return the applicationContext
 	 */
 	public ApplicationContext getApplicationContext() {
 		return applicationContext;
 	}
 
 	/**
 	 * @param applicationContext the applicationContext to set
 	 */
 	public void setApplicationContext(ApplicationContext applicationContext) {
 		this.applicationContext = applicationContext;
 	}
 
 	@Override
 	public void setLabGroups(List<? extends LabGroup> labGroups) {
 		this.labGroups = labGroups;
 	}
 	
 	public void retrieveAndSaveSpreadsheetDataAsXML( String feedURL ) {
 	}
 	
 }