/*
    * The Kuali Financial System, a comprehensive financial management system for higher education.
    * 
    * Copyright 2005-2014 The Kuali Foundation
    * 
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Affero General Public License as
    * published by the Free Software Foundation, either version 3 of the
    * License, or (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   * 
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  package org.kuali.kfs.module.tem.businessobject.options;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.kfs.module.tem.TemConstants;
  import org.kuali.kfs.module.tem.TemPropertyConstants;
  import org.kuali.kfs.module.tem.businessobject.TemRegion;
  import org.kuali.kfs.module.tem.service.TravelService;
  import org.kuali.kfs.sys.KFSConstants;
  import org.kuali.kfs.sys.context.SpringContext;
  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.rice.krad.service.KeyValuesService;
  
  public class TemRegionCodeValuesFinder extends KeyValuesBase {
      protected static volatile KeyValuesService keyValuesService;
  
      /**
       * @see org.kuali.rice.krad.keyvalues.KeyValuesFinder#getKeyValues()
       */
      @SuppressWarnings("rawtypes")
      @Override
      public List<KeyValue> getKeyValues() {
  
          String tripTypeCode = KFSConstants.EMPTY_STRING;
  
  
  
          List<KeyValue> keyValues = new ArrayList<KeyValue>();
          keyValues.add(new ConcreteKeyValue(KFSConstants.EMPTY_STRING, KFSConstants.EMPTY_STRING));
          TravelService travelService = SpringContext.getBean(TravelService.class);
  
          List<TemRegion> usRegions = new ArrayList<TemRegion>();
  
  
          Map<String, Object> fieldValues = new HashMap<String, Object>();
          if (StringUtils.isEmpty(tripTypeCode) || tripTypeCode.equals(TemConstants.TemTripTypes.IN_STATE)) {
              fieldValues.put(TemPropertyConstants.TRIP_TYPE_CODE, TemConstants.TemTripTypes.IN_STATE);
              List<TemRegion> inRegions = (List<TemRegion>) getKeyValuesService().findMatching(TemRegion.class, fieldValues);
              usRegions.addAll(inRegions);
          }
  
          if (StringUtils.isEmpty(tripTypeCode) || tripTypeCode.equals(TemConstants.TemTripTypes.OUT_OF_STATE)) {
              fieldValues.put(TemPropertyConstants.TRIP_TYPE_CODE, TemConstants.TemTripTypes.OUT_OF_STATE);
              List<TemRegion> outRegions = (List<TemRegion>) getKeyValuesService().findMatching(TemRegion.class, fieldValues);
              Collections.sort(outRegions);
              usRegions.addAll(outRegions);
  
          }
  
  
  
          Iterator<TemRegion> it = usRegions.iterator();
  
          String key = KFSConstants.EMPTY_STRING;
          while (it.hasNext()){
              TemRegion temRegion = it.next();
  
              String tempKey = temRegion.getRegionName();
              if (!tempKey.equals(key)){
                  keyValues.add(new ConcreteKeyValue(temRegion.getRegionCode().toUpperCase(), temRegion.getRegionCode().toUpperCase()));
              }
              key = tempKey;
          }
  
  
          if (StringUtils.isEmpty(tripTypeCode) || tripTypeCode.equals(TemConstants.TemTripTypes.INTERNATIONAL)) {
  
              fieldValues.put(TemPropertyConstants.TRIP_TYPE_CODE, TemConstants.TemTripTypes.INTERNATIONAL);
              List<TemRegion> intRegions = (List<TemRegion>)getKeyValuesService().findMatching(TemRegion.class, fieldValues);
              Collections.sort(intRegions);
  
  
              keyValues.add(new ConcreteKeyValue("---", "---"));
             it = intRegions.iterator();
             while (it.hasNext()) {
                 TemRegion temRegion = it.next();
                 String tempKey = temRegion.getRegionName();
                 if (!tempKey.equals(key)) {
                     keyValues.add(new ConcreteKeyValue(temRegion.getRegionCode().toUpperCase(), temRegion.getRegionCode().toUpperCase()));
                 }
                 key = tempKey;
             }
         }
 
         return keyValues;
     }
 
     protected KeyValuesService getKeyValuesService() {
         if (keyValuesService == null) {
             keyValuesService = SpringContext.getBean(KeyValuesService.class);
         }
         return keyValuesService;
     }
 }