#ifndef GPTP_HEADER_H
#define GPTP_HEADER_H

#include "ns3/header.h"

namespace ns3
{
  /**
   * \ingroup ethernet
   * \brief Packet header for Ethernet
   *
   * This class can be used to add a header to Ethernet packet.
   */

class GptpHeader : public Header
{
  public:
    /**
     * \brief Construct a gPTP header.
     */
    GptpHeader();

    /**
     * \brief Destroy a gPTP header.
     */
    ~GptpHeader() override;

    /**
     * \brief Get the TypeId
     *
     * \return The TypeId for this class
     */
    static TypeId GetTypeId();

    /**
     * \brief Get the TypeId of the instance
     *
     * \return The TypeId for this instance
     */
    TypeId GetInstanceTypeId() const override;

    void Print(std::ostream& os) const override;
    void Serialize(Buffer::Iterator start) const override;
    uint32_t Deserialize(Buffer::Iterator start) override;
    uint32_t GetSerializedSize() const override;



    void SetMessageType(uint8_t messageType);
    void SetMessageLenght(uint8_t messageLenght);
    void SetDomainNumber(uint8_t domainNumber);
    void SetTwoStepFlag(bool twoStepFlag);
    void SetCorrectionField(uint64_t correctionField);
    void SetClockIdentity(uint64_t clockIdentity);
    void SetPortIdentity(uint16_t portIdentity);
    void SetSequenceId(uint16_t sequenceId);
    void SetLogMessageInterval(uint8_t logMessageInterval);

    uint8_t GetMessageType();
    uint8_t GetDomainNumber();
    bool GetTwoStepFlag();
    uint64_t GetCorrectionField();
    uint64_t GetClockIdentity();
    uint16_t GetPortIdentity();
    uint16_t GetSequenceId();
    uint8_t GetLogMessageInterval();


  private:

    //STD 802.1AS-2020 : Talbe 10-7 - PTP message header
    uint8_t m_majorSdoId =  1;
    uint8_t m_messageType = 0;
    uint8_t m_minorVersionPTP = 0;
    uint8_t m_versionPTP = 2;
    uint16_t m_messageLenght = 0;
    uint8_t m_domainNumber = 0;
    uint8_t m_minorSdoId =  0;
    //Flags :
    bool m_alternateMasterFlag = false;
    bool m_twoStepFlag = false;
    bool m_unicastFlag = false;
    bool m_ptpProfifilSpecific1Flag = false;
    bool m_ptpProfifilSpecific2Flag = false;
    bool m_leap61 = false;
    bool m_leap59 = false;
    bool m_currentUtcOffsetValid = false;
    bool m_ptpTimescale = false;
    bool m_timeTraceable = false;
    bool m_frequencyTraceable = false;

    uint64_t m_correctionField = 0;
    uint32_t m_messageTypeSpecific = 0;
    //SourceClockIdentity
    uint64_t m_clockIndentity = 0;
    uint16_t m_portIdentity = 0;

    uint16_t m_sequenceId = 0;
    uint8_t m_controlField = 0;
    uint8_t m_logMessageInterval = 0;
};

}
#endif /* GPTP_HEADER_H */