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import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;

import java.io.IOException;
import java.io.InputStream;
import java.util.Scanner;

/** read and decode serial data */
public class SerialReader implements SerialPortEventListener {
    InputStream in;
    SorterGUI th;
    private byte[] buffer = new byte[1024];
    
    public SerialReader ( InputStream in, SorterGUI th )    {
        this.in = in;
        this.th = th;
    }
    
    @Override
    public void serialEvent(SerialPortEvent arg0) {
        int data;          
          try{
              int len = 0;
              while ( ( data = in.read()) > -1 ){
                  if ( data == '\n' ) {
                      break;
                  }
                  buffer[len++] = (byte) data;
              }
                  
                  String sin = new String(buffer,0,len);
                  //System.out.println("in "+sin);
                  Scanner ins = new Scanner(sin);
                  if(ins.hasNextLine()){
                      String s = ins.nextLine();
                      System.out.println(s);
                      if(s.equals("STOP")){
                          th.motorStop();
                      }                      
                  }
          }catch ( IOException e ){
              e.printStackTrace();
              System.exit(-1);
          }
          
    }
}