/**
  * Connection Handler for the RS232 serial connection to the sfm
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Philipp Dassow, NLST, 2018-01-29
  */

#pragma once

#include <QObject>
#include <QTcpSocket>

#include <LtsUtilsCore/sfm_bytemessage_converter.h>
#include "logger.h"


class QTimer;

namespace EffectShowClient
{

class ConnectionHandlerTcp : public QObject
{
  Q_OBJECT

public:
  explicit ConnectionHandlerTcp(QObject *parent = nullptr);
  ~ConnectionHandlerTcp();

  bool init();
  bool send(const QByteArray &message);
  bool open();
  void close();

  bool isOpen() const;

signals:
  /**
   * @brief received emits a byte pair with command and payload byte when a available. It is guaranteed that there will be 2 bytes
   * @param ba is a byte pair, with command 1st and payload 2nd.
   */
  void received(const QByteArray &ba);
  void connectedToSerialConverter();

private slots:
  void read();
  void handleError(QAbstractSocket::SocketError error);


private:
  bool isValidCommandByte(const unsigned char command);
  bool isValidPayloadByte(const unsigned char payload);
  QTcpSocket *m_socket;
  QTimer     *m_timer;
  QByteArray   m_currentDataRead;
  NGL::INGLLogger &m_logger;
};
} // namespace EffectShowClient