/*
    * 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.provisioning.java.job.notification;
  
  import java.util.Optional;
  import org.apache.syncope.core.persistence.api.DomainHolder;
  import org.apache.syncope.core.provisioning.api.job.JobDelegate;
  import org.apache.syncope.core.provisioning.api.job.JobManager;
  import org.apache.syncope.core.provisioning.api.notification.NotificationJobDelegate;
  import org.apache.syncope.core.provisioning.java.job.AbstractInterruptableJob;
  import org.apache.syncope.core.spring.security.AuthContextUtils;
  import org.apache.syncope.core.spring.security.SecurityProperties;
  import org.quartz.JobExecutionContext;
  import org.quartz.JobExecutionException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Periodically checks for notification to send.
   *
   * @see org.apache.syncope.core.persistence.api.entity.task.NotificationTask
   */
  public class NotificationJob extends AbstractInterruptableJob {
  
      public enum Status {
  
          SENT,
          NOT_SENT
  
      }
  
      protected static final Logger LOG = LoggerFactory.getLogger(NotificationJob.class);
  
      public static final String DEFAULT_CRON_EXP = "0 0/5 * * * ?";
  
      protected final SecurityProperties securityProperties;
  
      protected final DomainHolder domainHolder;
  
      protected final NotificationJobDelegate delegate;
  
      public NotificationJob(
              final SecurityProperties securityProperties,
              final DomainHolder domainHolder,
              final NotificationJobDelegate delegate) {
  
          this.securityProperties = securityProperties;
          this.domainHolder = domainHolder;
          this.delegate = delegate;
      }
  
      @Override
      public JobDelegate getDelegate() {
          return delegate;
      }
  
      @Override
      public void execute(final JobExecutionContext context) throws JobExecutionException {
          LOG.debug("Waking up...");
          String executor = Optional.ofNullable(context.getMergedJobDataMap().getString(JobManager.EXECUTOR_KEY)).
                  orElse(securityProperties.getAdminUser());
          for (String domain : domainHolder.getDomains().keySet()) {
              try {
                  AuthContextUtils.callAsAdmin(domain, () -> {
                      try {
                          delegate.execute(executor);
                      } catch (Exception e) {
                          LOG.error("While sending out notifications", e);
                          throw new RuntimeException(e);
                      }
  
                      return null;
                  });
              } catch (RuntimeException e) {
                  LOG.error("While sending out notifications", e);
                  throw new JobExecutionException("While sending out notifications", e);
              }
          }
  
          LOG.debug("Sleeping again...");
      }
  }