/*
 * 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.tika.parser.recognition.tf;

import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.Collections;
import java.util.Set;

import javax.ws.rs.core.UriBuilder;

import org.apache.tika.Tika;
import org.apache.tika.config.Field;
import org.apache.tika.config.TikaConfig;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.mime.MimeType;
import org.apache.tika.mime.MimeTypeException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Tensor Flow video recogniser which has high performance.
 * This implementation uses Tensorflow via REST API.
 * <p>
 * NOTE : //TODO: link to wiki page here
 *
 * @since Apache Tika 1.15
 */
public class TensorflowRESTVideoRecogniser extends TensorflowRESTRecogniser{

    private static final Logger LOG = LoggerFactory.getLogger(TensorflowRESTRecogniser.class);

	private static final Set<MediaType> SUPPORTED_MIMES = Collections.singleton(MediaType.video("mp4"));;

    @Field
    private URI apiUri = URI.create("http://localhost:8764/inception/v4/classify/video?topk=10");

    @Override
    public Set<MediaType> getSupportedMimes() {
        return SUPPORTED_MIMES;
    }
    
    @Override
    protected URI getApiUri(Metadata metadata){
    	
    	TikaConfig config = TikaConfig.getDefaultConfig();
    	String ext = null;
    	//Find extension for video. It's required for OpenCv in InceptionAPI to decode video 
		try {
			MimeType mimeType = config.getMimeRepository().forName(metadata.get("Content-Type"));
			ext = mimeType.getExtension();
			
			return UriBuilder.fromUri(apiUri).queryParam("ext", ext).build();
			
		} catch (MimeTypeException e) {
			LOG.error("Can't find extension from metadata");
			return apiUri;
		}
    }
    
    
}