package eu.fbk.dkm.pikes.naflib;
   
   import java.io.File;
   
   import com.google.common.base.Charsets;
   import com.google.common.io.Files;
   
   import eu.fbk.utils.core.EasySpan;
   import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import ixa.kaflib.KAFDocument;
  
  import eu.fbk.utils.core.CommandLine;
  
  /**
   * Created by alessio on 25/03/15.
   */
  
  public class NafOffsetReader {
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(NafOffsetReader.class);
  
  	public static void main(String[] args) {
  		final CommandLine cmd = CommandLine
  				.parser()
  				.withName("naf-offset-reader")
  				.withHeader("Read offset from a file")
  				.withOption("s", "start", "starting offset", "NUM", CommandLine.Type.INTEGER, true, false, true)
  				.withOption("e", "end", "ending offset", "NUM", CommandLine.Type.INTEGER, true, false, true)
  				.withOption("n", "naf", "file", "FILE", CommandLine.Type.FILE_EXISTING, true, false, true)
  				.withLogger(LoggerFactory.getLogger("eu.fbk.fssa")).parse(args);
  
  		final Integer start = cmd.getOptionValue("s", Integer.class);
  		final Integer end = cmd.getOptionValue("e", Integer.class);
  		final File nafFile = cmd.getOptionValue("n", File.class);
  
  		try {
  			String text;
  			try {
  				KAFDocument document = KAFDocument.createFromFile(nafFile);
  				text = document.getRawText();
  			} catch (Exception e) {
  				text = Files.toString(nafFile, Charsets.UTF_8);
  			}
  			EasySpan span = new EasySpan(start, end);
  			String piece = span.apply(text, false);
  
  			System.out.println(span);
  			System.out.println("===" + piece + "===");
  		} catch (Exception e) {
  			LOGGER.error(e.getMessage());
  		}
  	}
  }