/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.apache.syncope.core.persistence.jpa.dao;
  
  import java.util.List;
  import javax.persistence.TypedQuery;
  import org.apache.syncope.common.lib.types.TaskType;
  import org.apache.syncope.core.persistence.api.dao.NotificationDAO;
  import org.apache.syncope.core.persistence.api.dao.TaskDAO;
  import org.apache.syncope.core.persistence.api.entity.Implementation;
  import org.apache.syncope.core.persistence.api.entity.MailTemplate;
  import org.apache.syncope.core.persistence.api.entity.Notification;
  import org.apache.syncope.core.persistence.api.entity.task.Task;
  import org.apache.syncope.core.persistence.jpa.entity.JPANotification;
  import org.springframework.transaction.annotation.Transactional;
  
  public class JPANotificationDAO extends AbstractDAO<Notification> implements NotificationDAO {
  
      protected final TaskDAO taskDAO;
  
      public JPANotificationDAO(final TaskDAO taskDAO) {
          this.taskDAO = taskDAO;
      }
  
      @Transactional(readOnly = true)
      @Override
      public Notification find(final String key) {
          return entityManager().find(JPANotification.class, key);
      }
  
      @Transactional(readOnly = true)
      @Override
      public List<Notification> findByTemplate(final MailTemplate template) {
          TypedQuery<Notification> query = entityManager().createQuery(
                  "SELECT e FROM " + JPANotification.class.getSimpleName() + " e "
                  + "WHERE e.template=:template", Notification.class);
          query.setParameter("template", template);
          return query.getResultList();
      }
  
      @Override
      public List<Notification> findByRecipientsProvider(final Implementation recipientsProvider) {
          TypedQuery<Notification> query = entityManager().createQuery(
                  "SELECT e FROM " + JPANotification.class.getSimpleName()
                  + " e WHERE e.recipientsProvider=:recipientsProvider", Notification.class);
          query.setParameter("recipientsProvider", recipientsProvider);
  
          return query.getResultList();
      }
  
      @Transactional(readOnly = true)
      @Override
      public List<Notification> findAll() {
          TypedQuery<Notification> query = entityManager().createQuery(
                  "SELECT e FROM " + JPANotification.class.getSimpleName() + " e", Notification.class);
          return query.getResultList();
      }
  
      @Override
      public Notification save(final Notification notification) {
          ((JPANotification) notification).list2json();
          return entityManager().merge(notification);
      }
  
      @Override
      public void delete(final String key) {
          Notification notification = find(key);
          if (notification == null) {
              return;
          }
  
          taskDAO.findAll(
                  TaskType.NOTIFICATION, null, notification, null, null, -1, -1, List.of()).
                  stream().map(Task::getKey).forEach(this::delete);
  
          entityManager().remove(notification);
      }
  }