/**
  * The Pacemaker class implements functionality to publish Service states in DDS.
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Hannes Baeuerle, SLSE, 29.02.2016
  */

#pragma once

#include <QtCore/QObject>
#include <QtCore/QThread>
#include <DDS/Core/core_dts_types.h>
#include "core_export.h"

namespace DDSConnector
{
class DdsConnector;
}
class QTimer;
namespace NGL
{
class INGLLogger;
}

namespace Core
{
class CORE_CLIENT_EXPORT Pacemaker final : public QObject
{
  Q_OBJECT
public:
  explicit Pacemaker(const std::shared_ptr<DDSConnector::DdsConnector> &ddsConnector)
    : Pacemaker(ddsConnector.get())
  {}

  explicit Pacemaker(DDSConnector::DdsConnector *ddsConnector);
  ~Pacemaker();

  void startTimer();

public Q_SLOTS:
  void setNewState(Core::RunningState newState, const QString &errorString = QString());
  void addPort(unsigned short number, Core::PortType portType, const QString &properties = QStringLiteral(""));

  // only public for special purposes, not needed to call explicitly by default
  void publishState();

private:
  void init(DDSConnector::DdsConnector *ddsConnector);
  void setNewStateInternal(Core::RunningState newState, const QString &errorString = QString());
  void addPortInternal(unsigned short number, Core::PortType portType, const QString &properties = QStringLiteral(""));
private:
  static constexpr const int m_publishTimerDelay = 3000;

  CurrentRunningState  m_state;
  QTimer              *m_publishTimer = nullptr;
  QThread             *m_paceThread = nullptr;

  DTS::CurrentRunningStateImpl *m_dtsCurrentRunningState;
  NGL::INGLLogger &m_logger;
};
} // namespace Core