/**
    * Copyright 2005-2012 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.opensource.org/licenses/ecl2.php
    *
   * 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.rice.kew.lookup.valuefinder;
  
  import org.kuali.rice.core.api.util.ConcreteKeyValue;
  import org.kuali.rice.core.api.util.KeyValue;
  import org.kuali.rice.kew.api.KewApiConstants;
  import org.kuali.rice.krad.keyvalues.KeyValuesBase;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  /**
   * This is a description of what this class does - chris don't forget to fill this in.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class DocumentRouteStatusValuesFinder extends KeyValuesBase {
  
  	private static
  	<T extends Comparable<? super T>> List<T> asSortedList(Collection<T> c) {
  	  List<T> list = new ArrayList<T>(c);
  	  java.util.Collections.sort(list);
  	  return list;
  	}
  
  	/**
  	 * @see org.kuali.rice.krad.keyvalues.KeyValuesFinder#getKeyValues()
  	 */
  	@Override
  	public List<KeyValue> getKeyValues() {
  		List<KeyValue> keyValues = new ArrayList<KeyValue>();
  		List<String> docStatusParentKeys = asSortedList(KewApiConstants.DOCUMENT_STATUS_PARENT_TYPES.keySet());
  
  		for (String parentKey : docStatusParentKeys) {
  			KeyValue keyLabel = new ConcreteKeyValue(parentKey,parentKey + " Statuses");
  			keyValues.add(keyLabel);
  
  			// each parent key, pending, successful, unsuccessful each has a sub list of real document statuses
  			List<String> docStatusCodes = KewApiConstants.DOCUMENT_STATUS_PARENT_TYPES.get(parentKey);
  			for(String docStatusCode : docStatusCodes){
  				KeyValue docStat = new ConcreteKeyValue(docStatusCode, "- "+ KewApiConstants.DOCUMENT_STATUSES.get(docStatusCode));
  				keyValues.add(docStat);
  			}
  		}
  		return keyValues;
  	}
  
  }