/**
    * Copyright 2004-2013 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.hr.time.position.dao;
  
  import java.sql.Date;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.common.collect.ImmutableList;
  import org.apache.commons.lang.StringUtils;
  import org.apache.ojb.broker.query.Criteria;
  import org.apache.ojb.broker.query.Query;
  import org.apache.ojb.broker.query.QueryFactory;
  import org.apache.ojb.broker.query.ReportQueryByCriteria;
  import org.kuali.hr.core.util.OjbSubQueryUtil;
  import org.kuali.hr.time.position.Position;
  import org.kuali.hr.time.util.TKUtils;
  import org.kuali.rice.core.framework.persistence.ojb.dao.PlatformAwareDaoBaseOjb;
  
  public class PositionDaoSpringOjbImpl extends PlatformAwareDaoBaseOjb implements PositionDao {
      private static final ImmutableList<String> EQUAL_TO_FIELDS = new ImmutableList.Builder<String>()
              .add("positionNumber")
              .build();
  
      @Override
      public Position getPosition(String hrPositionId) {
          Criteria crit = new Criteria();
          crit.addEqualTo("hrPositionId", hrPositionId);
  
          Query query = QueryFactory.newQuery(Position.class, crit);
          return (Position) this.getPersistenceBrokerTemplate().getObjectByQuery(query);
      }
  
  
      @Override
      public Position getPosition(String positionNumber, Date effectiveDate) {
          Criteria root = new Criteria();
  
          root.addEqualTo("positionNumber", positionNumber);
          root.addEqualTo("effectiveDate", OjbSubQueryUtil.getEffectiveDateSubQuery(Position.class, effectiveDate, EQUAL_TO_FIELDS, false));
          root.addEqualTo("timestamp", OjbSubQueryUtil.getTimestampSubQuery(Position.class, EQUAL_TO_FIELDS, false));
  
          Criteria activeFilter = new Criteria(); // Inner Join For Activity
          activeFilter.addEqualTo("active", true);
          root.addAndCriteria(activeFilter);
  
          Query query = QueryFactory.newQuery(Position.class, root);
          return (Position) this.getPersistenceBrokerTemplate().getObjectByQuery(query);
      }
  
  	@Override
      @SuppressWarnings("unchecked")
      public List<Position> getPositions(String positionNum, String workArea, String description, Date fromEffdt, Date toEffdt, 
      								   String active, String showHistory) {
          
          List<Position> results = new ArrayList<Position>();
          
      	Criteria root = new Criteria();
  
          if (StringUtils.isNotBlank(positionNum)) {
              root.addLike("positionNumber", positionNum);
          }
          
          if (StringUtils.isNotBlank(workArea)) {
              root.addLike("workArea", workArea);
          }
  
          if (StringUtils.isNotBlank(description)) {
              root.addLike("description", description);
          }
          
          Criteria effectiveDateFilter = new Criteria();
          if (fromEffdt != null) {
              effectiveDateFilter.addGreaterOrEqualThan("effectiveDate", fromEffdt);
          }
          if (toEffdt != null) {
              effectiveDateFilter.addLessOrEqualThan("effectiveDate", toEffdt);
          }
          if (fromEffdt == null && toEffdt == null) {
              effectiveDateFilter.addLessOrEqualThan("effectiveDate", TKUtils.getCurrentDate());
          }
          root.addAndCriteria(effectiveDateFilter);
          
          if (StringUtils.isNotBlank(active)) {
          	Criteria activeFilter = new Criteria();
              if (StringUtils.equals(active, "Y")) {
                 activeFilter.addEqualTo("active", true);
             } else if (StringUtils.equals(active, "N")) {
                 activeFilter.addEqualTo("active", false);
             }
             root.addAndCriteria(activeFilter);
         }
 
         if (StringUtils.equals(showHistory, "N")) {
             root.addEqualTo("effectiveDate", OjbSubQueryUtil.getEffectiveDateSubQueryWithFilter(Position.class, effectiveDateFilter, EQUAL_TO_FIELDS, false));
             root.addEqualTo("timestamp", OjbSubQueryUtil.getTimestampSubQuery(Position.class, EQUAL_TO_FIELDS, false));
         }
         
         Query query = QueryFactory.newQuery(Position.class, root);
         results.addAll(getPersistenceBrokerTemplate().getCollectionByQuery(query));
 
         return results;
     }
 
     /*@Override
     public PositionNumber getNextUniquePositionNumber() {
         Criteria crit = new Criteria();
         ReportQueryByCriteria query = QueryFactory.newReportQuery(PositionNumber.class, crit);
         query.setAttributes(new String[]{"max(id)"});
         return (PositionNumber) this.getPersistenceBrokerTemplate().getObjectByQuery(query);
     }
 
     @Override
     public void saveOrUpdate(PositionNumber positionNumber) {
         this.getPersistenceBrokerTemplate().store(positionNumber);
     }*/
 
 }