/*
    * Licensed to The Apereo Foundation under one or more contributor license
    * agreements. See the NOTICE file distributed with this work for additional
    * information regarding copyright ownership.
    *
    *
    * The Apereo Foundation licenses this file to you 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://opensource.org/licenses/ecl2.txt
   *
   * 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.opencastproject.job.api;
  
  import static org.opencastproject.util.data.Collections.nullToNil;
  import static org.opencastproject.util.data.functions.Misc.chuck;
  
  import org.opencastproject.serviceregistry.api.IncidentServiceException;
  import org.opencastproject.util.NotFoundException;
  
  import java.util.List;
  import java.util.stream.Collectors;
  
  import javax.xml.bind.annotation.XmlAccessType;
  import javax.xml.bind.annotation.XmlAccessorType;
  import javax.xml.bind.annotation.XmlElement;
  import javax.xml.bind.annotation.XmlRootElement;
  import javax.xml.bind.annotation.XmlType;
  
  /** 1:1 serialization of a {@link IncidentTreeImpl}. */
  @XmlAccessorType(XmlAccessType.NONE)
  @XmlType(name = "incidentTree", namespace = "http://job.opencastproject.org")
  @XmlRootElement(name = "incidentTree", namespace = "http://job.opencastproject.org")
  public final class JaxbIncidentTree {
    @XmlElement(name = JaxbIncidentUtil.ELEM_NESTED_INCIDENT)
    private List<JaxbIncident> incidents;
  
    @XmlElement(name = JaxbIncidentUtil.ELEM_NESTED_TREE)
    private List<JaxbIncidentTree> descendants;
  
    /** Constructor for JAXB */
    public JaxbIncidentTree() {
    }
  
    public JaxbIncidentTree(IncidentTree tree) throws IncidentServiceException, NotFoundException {
      this.incidents = tree.getIncidents().stream()
          .map(JaxbIncident::new)
          .collect(Collectors.toList());
  
      this.descendants = tree.getDescendants().stream()
          .map(t -> {
            try {
              return new JaxbIncidentTree(t);
            } catch (Exception e) {
              return chuck(e);
            }
          })
          .collect(Collectors.toList());
    }
  
    public IncidentTree toIncidentTree() {
      List<Incident> mappedIncidents = nullToNil(incidents).stream()
          .map(JaxbIncident::toIncident)
          .collect(Collectors.toList());
  
      List<IncidentTree> mappedDescendants = nullToNil(descendants).stream()
          .map(JaxbIncidentTree::toIncidentTree)
          .collect(Collectors.toList());
  
      return new IncidentTreeImpl(mappedIncidents, mappedDescendants);
    }
  }