#ifndef CLOCK_H
#define CLOCK_H

#include "ns3/object.h"
#include "ns3/nstime.h"

namespace ns3
{

class Clock: public Object
{
  public:
    /**
     * \brief Get the TypeId
     *
     * \return The TypeId for this class
     */
    static TypeId GetTypeId();

    /**
     * \brief Create a Clock
     */
    Clock();

    /**
     * Destroy a Clock
     *
     * This is the destructor for the Clock.
     */
    ~Clock();

    // Delete copy constructor and assignment operator to avoid misuse
    Clock& operator=(const Clock&) = delete;
    Clock(const Clock&) = delete;

    void AddClockCorrectionCallback(Callback<void> cb);
    void TriggerCorrectionCallback();

    virtual Time GetLocalTime();
    virtual Time GetUncorrectedLocalTime();
    /**
    *
    * \brief Get Clock time at instant t in the simulator/perfect time base
    *
    * \params t Timestamp in the simulator/perfect time base
    * \return clock time at instant t
    */
    virtual Time GetTimeAt(Time t);
    /**
    *
    * \brief Get duration in the clock timebase from duration in the simulator/perfect time base
    *
    * \params d duration in the simulator/perfect time base
    * \return duration in the clock timebase
    */
    virtual Time GetDuration(Time d);
    virtual void UpdateTime();
    void SetOffsetTime(Time offset);

  protected:
    Time m_correctionOffset = Time(0);
    Time m_granularity;
  private:

    std::vector<Callback<void>> m_callbacks;

};

}
#endif /* CLOCK_H */