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/**
 * 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.server.resource;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.IOException;
import java.io.InputStream;

import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

import org.apache.commons.io.IOUtils;
import org.apache.tika.langdetect.OptimaizeLangDetector;
import org.apache.tika.language.detect.LanguageResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Path("/language")
public class LanguageResource {
	private static final Logger LOG = LoggerFactory.getLogger(LanguageResource.class);

	@PUT
	@POST
	@Path("/stream")
	@Consumes("*/*")
	@Produces("text/plain")
	public String detect(final InputStream is) throws IOException {
		String fileTxt = IOUtils.toString(is, UTF_8);
		LanguageResult language = new OptimaizeLangDetector().loadModels().detect(fileTxt);
		String detectedLang = language.getLanguage();
		LOG.info("Detecting language for incoming resource: [{}]", detectedLang);
		return detectedLang;
	}

	@PUT
	@POST
	@Path("/string")
	@Consumes("*/*")
	@Produces("text/plain")
	public String detect(final String string) throws IOException {
		LanguageResult language = new OptimaizeLangDetector().loadModels().detect(string);
		String detectedLang = language.getLanguage();
		LOG.info("Detecting language for incoming resource: [{}]", detectedLang);
		return detectedLang;
	}

}