/*
 * 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 opennlp.tools.cmdline.tokenizer;

import java.io.File;
import java.io.IOException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import opennlp.tools.cmdline.BasicCmdLineTool;
import opennlp.tools.cmdline.CLI;
import opennlp.tools.cmdline.CmdLineUtil;
import opennlp.tools.cmdline.PerformanceMonitor;
import opennlp.tools.cmdline.SystemInputStreamFactory;
import opennlp.tools.tokenize.Detokenizer;
import opennlp.tools.tokenize.DictionaryDetokenizer;
import opennlp.tools.tokenize.WhitespaceTokenizer;
import opennlp.tools.util.ObjectStream;
import opennlp.tools.util.PlainTextByLineStream;

public final class DictionaryDetokenizerTool extends BasicCmdLineTool {

  private static final Logger logger = LoggerFactory.getLogger(DictionaryDetokenizerTool.class);

  @Override
  public String getShortDescription() {
    return "Normalizes tokenized text according to rules defined in a detokenizer dictionary";
  }

  @Override
  public String getHelp() {
    return "Usage: " + CLI.CMD + " " + getName() + " detokenizerDictionary";
  }

  @Override
  public void run(String[] args) {
    if (args.length != 1) {
      logger.info(getHelp());
    } else {
      try {
        Detokenizer detokenizer = new DictionaryDetokenizer(
            new DetokenizationDictionaryLoader().load(new File(args[0])));

        try (ObjectStream<String> tokenizedLineStream =
            new PlainTextByLineStream(new SystemInputStreamFactory(), SystemInputStreamFactory.encoding())) {

          PerformanceMonitor perfMon = new PerformanceMonitor("sent");
          perfMon.start();

          String tokenizedLine;
          while ((tokenizedLine = tokenizedLineStream.read()) != null) {

            // white space tokenize line
            String[] tokens = WhitespaceTokenizer.INSTANCE.tokenize(tokenizedLine);

            logger.info(detokenizer.detokenize(tokens, null));

            perfMon.incrementCounter();
          }
          perfMon.stopAndPrintFinalResult();
        }
      }
      catch (IOException e) {
        CmdLineUtil.handleStdinIoError(e);
      }
    }
  }
}
