import stamp.core.*;

public class SerialController
{
  public int SerialPinInput = CPU.pin1;
  public int SerialPinOutput = CPU.pin2;
  public int SerialBaud = Uart.speed2400;
  public StringBuffer Buffer = null;
  public int recByte = 0;
  public int sendByte = 0;
  static Uart SerSen = null;
  static Uart SerRec = null;
  public Timer time = null;


  public boolean SerOut()
  {
    return SerOut(Buffer.toString());
  }

  public boolean SerOut(int timeout)
  {
    return SerOut(Buffer.toString(), timeout);
  }

  public boolean SerOut(String value)
  {
    SerSen.setDirection(Uart.dirTransmit);
    SerSen.sendString(value);

    return SerSen.sendBufferEmpty();
  }

  public boolean SerOut(String value, int timeout)
  {
    SerSen.sendString(value);

    time.mark();
    while (!SerSen.sendBufferEmpty() && !time.timeout(timeout));

    return SerSen.sendBufferEmpty();
  }


  public boolean SerIn(int expects, int timeout)
  {
    Buffer.clear();

    time.mark();
    while (Buffer.length() < expects && !time.timeout(timeout))
    {

    while (SerRec.byteAvailable())
    {
      recByte = SerRec.receiveByte();
      Buffer.append((char)recByte);
      //Buffer.append(recByte);
    }

    }

    if (Buffer.length() == 0) return false;
    return true;
  }


  public boolean SerIn()
  {
    Buffer.clear();

    while (SerRec.byteAvailable())
    {
      recByte = SerRec.receiveByte();
      Buffer.append((char)recByte);
      //Buffer.append(recByte);
    }
    if (Buffer.length() == 0) return false;
    return true;
  }

  public void Dispose()
  {
    time = null;
    SerRec = null;
    SerSen = null;
    Buffer = null;
  }
  public SerialController(int ipin, int opin, int baud)
  {
    Buffer = new StringBuffer(255);
    SerialPinInput = ipin;
    SerialPinOutput = opin;
    SerialBaud = baud;
    time = new Timer();
    SerSen = new Uart(Uart.dirTransmit,SerialPinOutput,Uart.invert,SerialBaud,Uart.stop1);
    SerRec = new Uart(Uart.dirReceive,SerialPinInput,Uart.invert,SerialBaud,Uart.stop1);
  }

} 