/*
    * 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.playlist.datafetcher;
  
  import org.opencastproject.graphql.datafetcher.ContextDataFetcher;
  import org.opencastproject.graphql.exception.GraphQLRuntimeException;
  import org.opencastproject.graphql.exception.OpencastErrorType;
  import org.opencastproject.graphql.execution.context.OpencastContext;
  import org.opencastproject.graphql.playlist.type.output.GqlPlaylist;
  import org.opencastproject.playlists.Playlist;
  import org.opencastproject.playlists.PlaylistService;
  import org.opencastproject.security.api.UnauthorizedException;
  import org.opencastproject.util.NotFoundException;
  
  import java.util.Objects;
  
  import graphql.schema.DataFetchingEnvironment;
  
  public class PlaylistDataFetcher implements ContextDataFetcher<GqlPlaylist> {
  
    private final String playlistId;
  
    public PlaylistDataFetcher(String playlistId) {
      Objects.requireNonNull(playlistId, "Playlist identifier must not be null.");
      this.playlistId = playlistId;
    }
  
    @Override
    public GqlPlaylist get(OpencastContext opencastContext, DataFetchingEnvironment dataFetchingEnvironment) {
      PlaylistService playlistService = opencastContext.getService(PlaylistService.class);
  
      try {
        Playlist playlist = playlistService.getPlaylistById(playlistId);
        if (playlist == null) {
          return null;
        }
        try {
          //playlist = playlistService.enrich(playlist).toPlaylist();
        } catch (Throwable ignored) {
        }
        return new GqlPlaylist(playlist);
      } catch (NotFoundException e) {
        return null;
      } catch (UnauthorizedException e) {
        throw new GraphQLRuntimeException("Unauthorized", OpencastErrorType.Unauthorized, e);
      } catch (Exception e) {
        throw new GraphQLRuntimeException("Error fetching playlist", OpencastErrorType.InternalError, e);
      }
    }
  }