/*
 * 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.beam.sdk.extensions.ml;

import com.google.cloud.videointelligence.v1.Feature;
import com.google.cloud.videointelligence.v1.VideoAnnotationResults;
import com.google.cloud.videointelligence.v1.VideoContext;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import org.apache.beam.sdk.annotations.Experimental;
import org.apache.beam.sdk.values.PCollectionView;

/**
 * Implementation of AnnotateVideoFn accepting Strings as contents of input PCollection. Annotates
 * videos found on GCS based on URIs from input PCollection.
 */
@Experimental
@SuppressWarnings({
  "nullness" // TODO(https://issues.apache.org/jira/browse/BEAM-10402)
})
class AnnotateVideoFromURIFn extends AnnotateVideoFn<String> {

  public AnnotateVideoFromURIFn(
      PCollectionView<Map<String, VideoContext>> contextSideInput, List<Feature> featureList) {
    super(contextSideInput, featureList);
  }

  /** ProcessElement implementation. */
  @Override
  public void processElement(ProcessContext context)
      throws ExecutionException, InterruptedException {
    String elementURI = context.element();
    VideoContext videoContext = null;
    if (contextSideInput != null) {
      videoContext = context.sideInput(contextSideInput).get(elementURI);
    }
    List<VideoAnnotationResults> annotationResultsList =
        getVideoAnnotationResults(elementURI, null, videoContext);
    context.output(annotationResultsList);
  }
}
