/*

  * Copyright 2007-2008 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.stats.dao.impl;

 import org.apache.ojb.broker.accesslayer.LookupException;

 import org.kuali.rice.core.api.util.ConcreteKeyValue;

 import org.kuali.rice.core.api.util.KeyValue;

 import org.kuali.rice.kew.stats.Stats;

 import org.kuali.rice.kew.stats.dao.StatsDAO;

 import org.kuali.rice.kew.util.KEWConstants;

 import javax.persistence.EntityManager;

 import javax.persistence.PersistenceContext;

 import javax.persistence.Query;

 import java.sql.SQLException;

 import java.sql.Timestamp;

 import java.util.ArrayList;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.List;

 /**

  * This is a description of what this class does - ddean don't forget to fill this in. 

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 // There isn't an obvious place to put these @NamedQueries since they are just doing select count(*) from various tables.

 // Thus I'm using the query literals in this class, move these NamedQuerys to wherever they need to go.

 // @NamedQueries({

 //    @NamedQuery(name="Stats.DocumentsRoutedReport",  query="select count(*) as count, drhv.docRouteStatus from DocumentRouteHeaderValue drhv where drhv.createDate between :beginDate and :endDate group by docRouteStatus"),

 //    @NamedQuery(name="Stats.NumActiveItemsReport",  query="select count(*) from ActionItem ai"),

 //    @NamedQuery(name="Stats.NumInitiatedDocsByDocTypeReport",  query="select count(*), dt.name from DocumentRouteHeaderValue drhv, DocumentType dt where drhv.createDate > :createDate and drhv.documentTypeId = dt.documentTypeId group by dt.name"),

 //    @NamedQuery(name="Stats.NumUsersReport",  query="select count(distinct workflowId) from UserOptions uo"),

 //    @NamedQuery(name="Stats.NumberOfDocTypesReport",  query="select count(*) from DocumentType dt where dt.currentInd = true")

 //  })

 public class StatsDaoJpaImpl implements StatsDAO {

     @PersistenceContext

     private EntityManager entityManager;

     @Override

         public void DocumentsRoutedReport(Stats stats, Date begDate, Date endDate) throws SQLException, LookupException {

         Query query = entityManager.createQuery("select count(*) as count, drhv.docRouteStatus from DocumentRouteHeaderValue drhv where drhv.createDate between :beginDate and :endDate group by docRouteStatus");

 //        Query query = entityManager.createNamedQuery("Stats.DocumentsRoutedReport");

         query.setParameter("beginDate", new Timestamp(begDate.getTime()));

         query.setParameter("endDate", new Timestamp(endDate.getTime()));

         @SuppressWarnings("unchecked")

         List<Object[]> resultList = query.getResultList();

         for (Object[] result : resultList) {

             String actionType = result[1].toString();

             String number = result[0].toString();

             if (actionType.equals(KEWConstants.ROUTE_HEADER_CANCEL_CD)) {

                 stats.setCanceledNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_DISAPPROVED_CD)) {

                 stats.setDisapprovedNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_ENROUTE_CD)) {

                 stats.setEnrouteNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_EXCEPTION_CD)) {

                 stats.setExceptionNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_FINAL_CD)) {

                 stats.setFinalNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_INITIATED_CD)) {

                 stats.setInitiatedNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_PROCESSED_CD)) {

                 stats.setProcessedNumber(number);

             } else if (actionType.equals(KEWConstants.ROUTE_HEADER_SAVED_CD)) {

                 stats.setSavedNumber(number);

             }

         }

     }

     @Override

         public void NumActiveItemsReport(Stats stats) throws SQLException, LookupException {

         stats.setNumActionItems(entityManager.createQuery("select count(*) from ActionItem ai").getSingleResult().toString());

 //        stats.setNumActionItems(entityManager.createNamedQuery("Stats.NumActiveItemsReport").getSingleResult().toString());

     }

     @Override

         public void NumInitiatedDocsByDocTypeReport(Stats stats) throws SQLException, LookupException {

         Query query = entityManager.createQuery("select count(*), dt.name from DocumentRouteHeaderValue drhv, DocumentType dt where drhv.createDate > :createDate and drhv.documentTypeId = dt.documentTypeId group by dt.name");

 //        Query query = entityManager.createNamedQuery("Stats.NumInitiatedDocsByDocTypeReport");

         Calendar calendar = Calendar.getInstance();

         calendar.add(Calendar.DAY_OF_YEAR, -29);

         calendar.set(Calendar.HOUR_OF_DAY, 0);

         calendar.set(Calendar.MINUTE, 0);

         calendar.set(Calendar.SECOND, 0);

         calendar.set(Calendar.MILLISECOND, 0);        

         query.setParameter("createDate", new Timestamp(calendar.getTime().getTime()));

         @SuppressWarnings("unchecked")

         List<Object[]> resultList = query.getResultList();

         List<KeyValue> numDocs = new ArrayList<KeyValue>(resultList.size());

         for (Object[] result : resultList) {

             numDocs.add(new ConcreteKeyValue(result[1].toString(),result[0].toString()));

         }

         stats.setNumInitiatedDocsByDocType(numDocs);

     }

     @Override

         public void NumUsersReport(Stats stats) throws SQLException, LookupException {

         stats.setNumUsers(entityManager.createQuery("select count(distinct uo.workflowId) from UserOptions uo").getSingleResult().toString());

 //        stats.setNumUsers(entityManager.createNamedQuery("Stats.NumUsersReport").getSingleResult().toString());

     }

     @Override

         public void NumberOfDocTypesReport(Stats stats) throws SQLException, LookupException {

         stats.setNumDocTypes(entityManager.createQuery("select count(*) from DocumentType dt where dt.currentInd = true").getSingleResult().toString());

 //        stats.setNumDocTypes(entityManager.createNamedQuery("Stats.NumberOfDocTypesReport").getSingleResult().toString());

     }

     public EntityManager getEntityManager() {

         return this.entityManager;

     }

     public void setEntityManager(EntityManager entityManager) {

         this.entityManager = entityManager;

     }

 }