#ifndef ETHERLIB_PACKET_H
#define ETHERLIB_PACKET_H

#include <stdint.h>

#include <stdbool.h>

/**
 * \struct RawPckt
 * \brief Raw packet received on wire
 */
 typedef struct {
     uint8_t * payload; ///> Pointer to raw packet payload.
     uint32_t size; ///> Raw packet size.
     union {
         struct {
             uint32_t time_s; ///> Timestamp seconds field
             uint32_t time_ns; ///> Timestamp nanoseconds field
         } rx;
         struct {
             void(*txTsCb)(uint32_t ts_s, uint32_t ts_ns, uint32_t tag); ///> Transmit timestamp callback pointer
             uint32_t arg; ///> User-defined argument
         } tx;
     } ext; ///> Extensions
     struct {
        bool calculate_ethernet_CRC : 1; ///> Instruct the packet assembler to always computer FCS regardless of device capabilities
     } opts;
 } RawPckt;

struct PcktHeaderElement_;

/**
 * @struct Pckt
 * @brief Generic packet
 *
 * Fields have been reordered so that fields are aligned.
 */
typedef struct {
    uint64_t time_s; ///< Timestamp seconds part
    uint32_t time_ns; ///< Timestamp nanoseconds part.
    struct PcktHeaderElement_ * header; ///< Pointer to packet header. Points to the innermost header
    const uint8_t * payload; ///< Pointer to (innermost) payload.
    uint16_t headerSize; ///< Packet header size in bytes.
    uint16_t payloadSize; ///< Payload size in bytes.
    //uint16_t type; ///< Packet class indicator (e.g. UDP, TCP, IPv4 etc.)
} Pckt;

// typedef struct {
//     uint64_t time_s; ///< Timestamp seconds part
//     uint32_t time_ns; ///< Timestamp nanoseconds part.
//     struct PcktHeaderElement_ * header; ///< Pointer to packet header. Points to the innermost header
//     const uint8_t * payload; ///< Pointer to (innermost) payload.
//     uint16_t headerSize; ///< Packet header size in bytes.
//     uint16_t payloadSize; ///< Payload size in bytes.
//     //uint16_t type; ///< Packet class indicator (e.g. UDP, TCP, IPv4 etc.)
// } ConstPckt;

#endif //ETHERLIB_PACKET_H