/* Licensed under the Apache 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.apache.org/licenses/LICENSE-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.activiti.engine.impl.persistence.entity;

import java.util.List;

import org.activiti.engine.history.HistoricDetail;
import org.activiti.engine.impl.HistoricDetailQueryImpl;
import org.activiti.engine.impl.Page;
import org.activiti.engine.impl.history.HistoryLevel;
import org.activiti.engine.impl.persistence.AbstractManager;


/**
 * @author Tom Baeyens
 */
public class HistoricDetailManager extends AbstractManager {

  @SuppressWarnings({ "unchecked", "rawtypes" })
  public void deleteHistoricDetailsByProcessInstanceId(String historicProcessInstanceId) {
    if (getHistoryManager().isHistoryLevelAtLeast(HistoryLevel.AUDIT)) {
      List<HistoricDetailEntity> historicDetails = (List) getDbSqlSession()
        .createHistoricDetailQuery()
        .processInstanceId(historicProcessInstanceId)
        .list();
      
      for (HistoricDetailEntity historicDetail: historicDetails) {
        historicDetail.delete();
      }
    }
  }
  
  public long findHistoricDetailCountByQueryCriteria(HistoricDetailQueryImpl historicVariableUpdateQuery) {
    return (Long) getDbSqlSession().selectOne("selectHistoricDetailCountByQueryCriteria", historicVariableUpdateQuery);
  }

  @SuppressWarnings("unchecked")
  public List<HistoricDetail> findHistoricDetailsByQueryCriteria(HistoricDetailQueryImpl historicVariableUpdateQuery, Page page) {
    return getDbSqlSession().selectList("selectHistoricDetailsByQueryCriteria", historicVariableUpdateQuery, page);
  }

  public void deleteHistoricDetailsByTaskId(String taskId) {
    if (getHistoryManager().isHistoryLevelAtLeast(HistoryLevel.FULL)) {
      HistoricDetailQueryImpl detailsQuery = 
        (HistoricDetailQueryImpl) new HistoricDetailQueryImpl().taskId(taskId);
      List<HistoricDetail> details = detailsQuery.list();
      for(HistoricDetail detail : details) {
        ((HistoricDetailEntity) detail).delete();
      }
    }
  }
}