/*
    * 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.graphql.event;
  
  
  import org.opencastproject.elasticsearch.api.SearchResult;
  import org.opencastproject.elasticsearch.api.SearchResultItem;
  import org.opencastproject.elasticsearch.index.objects.event.Event;
  import org.opencastproject.graphql.type.output.OffsetPageInfo;
  
  import java.util.Arrays;
  import java.util.List;
  import java.util.stream.Collectors;
  
  import graphql.annotations.annotationTypes.GraphQLDescription;
  import graphql.annotations.annotationTypes.GraphQLField;
  import graphql.annotations.annotationTypes.GraphQLName;
  import graphql.annotations.annotationTypes.GraphQLNonNull;
  
  @GraphQLName(GqlEventList.TYPE_NAME)
  @GraphQLNonNull
  @GraphQLDescription("A list of events")
  public class GqlEventList {
  
    public static final String TYPE_NAME = "EventList";
  
    protected final SearchResult<Event> searchResult;
  
    public GqlEventList(SearchResult<Event> searchResult) {
      this.searchResult = searchResult;
    }
  
    @GraphQLField
    @GraphQLNonNull
    public Long totalCount() {
      return searchResult.getHitCount();
    }
  
    @GraphQLField
    @GraphQLNonNull
    public OffsetPageInfo pageInfo() {
      return OffsetPageInfo.from(searchResult);
    }
  
    @GraphQLField
    @GraphQLNonNull
    public List<GqlEvent> nodes() {
      return Arrays.stream(searchResult.getItems())
          .map(SearchResultItem::getSource)
          .map(GqlEvent::new)
          .collect(Collectors.toList());
    }
  
  }