content: /*
   *  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.causeway.viewer.graphql.model.domain.rich.query;
  
  import graphql.schema.DataFetchingEnvironment;
  
  import static graphql.schema.GraphQLFieldDefinition.newFieldDefinition;
  
  import org.apache.causeway.core.config.CausewayConfiguration;
  import org.apache.causeway.core.metamodel.spec.feature.OneToOneAssociation;
  import org.apache.causeway.viewer.graphql.model.context.Context;
  import org.apache.causeway.viewer.graphql.model.domain.ElementCustom;
  import org.apache.causeway.viewer.graphql.model.domain.TypeNames;
  import org.apache.causeway.viewer.graphql.model.domain.common.interactors.MemberInteractor;
  import org.apache.causeway.viewer.graphql.model.fetcher.BookmarkedPojo;
  
  public class RichPropertyGetBlob
          extends ElementCustom {
  
      final MemberInteractor<OneToOneAssociation> memberInteractor;
  
      final RichPropertyGetBlobBytes blobName;
      final RichPropertyGetBlobMimeType blobMimeType;
      final RichPropertyGetBlobName blobBytes;
  
      private final CausewayConfiguration.Viewer.Graphql graphqlConfiguration;
  
      public RichPropertyGetBlob(
              final MemberInteractor<OneToOneAssociation> memberInteractor,
              final Context context) {
          super(TypeNames.propertyLobTypeNameFor(memberInteractor.getObjectSpecification(), memberInteractor.getObjectMember(), memberInteractor.getSchemaType()), context);
          this.memberInteractor = memberInteractor;
  
          this.graphqlConfiguration = context.causewayConfiguration.getViewer().getGraphql();
  
          if (isBuilt()) {
              // type already exists, nothing else to do.
              this.blobName = null;
              this.blobMimeType = null;
              this.blobBytes = null;
              return;
          }
  
          addChildFieldFor(blobName = new RichPropertyGetBlobBytes(memberInteractor, context));
          addChildFieldFor(blobMimeType = new RichPropertyGetBlobMimeType(memberInteractor, context));
          addChildFieldFor(blobBytes = isResourceNotForbidden() ? new RichPropertyGetBlobName(memberInteractor, context) : null);
  
          setField(newFieldDefinition()
                      .name("get")
                      .type(buildObjectType())
                      .build());
      }
  
      private boolean isResourceNotForbidden() {
          return graphqlConfiguration.getResources().getResponseType() != CausewayConfiguration.Viewer.Graphql.ResponseType.FORBIDDEN;
      }
  
      @Override
      protected Object fetchData(final DataFetchingEnvironment dataFetchingEnvironment) {
          return BookmarkedPojo.sourceFrom(dataFetchingEnvironment, context);
      }
  
      @Override
      protected void addDataFetchersForChildren() {
          if (blobName == null) {
              return;
          }
          blobName.addDataFetcher(this);
          blobMimeType.addDataFetcher(this);
          if (blobBytes != null) {
              blobBytes.addDataFetcher(this);
          }
      }
  
  }
  