#pragma once

#include <cstdint>
#include <limits>

namespace RDM {

using PID = uint16_t;       //!< 16-bit number that identifies a specific type of Parameter Data

// Table A-13: Sensor Unit Defines
const uint8_t UNITS_NONE                         = 0x00; //!< dimentionless
const uint8_t UNITS_CENTIGRADE                   = 0x01; //!< termodynamic temperature
const uint8_t UNITS_VOLTS_DC                     = 0x02; //!< electric potential
const uint8_t UNITS_VOLTS_AC_PEAK                = 0x03; //!< electric potential
const uint8_t UNITS_VOLTS_AC_RMS                 = 0x04; //!< electric potential
const uint8_t UNITS_AMPERE_DC                    = 0x05; //!< electric current
const uint8_t UNITS_AMPERE_AC_PEAK               = 0x06; //!< electric current
const uint8_t UNITS_AMPERE_AC_RMS                = 0x07; //!< electric current
const uint8_t UNITS_HERTZ                        = 0x08; //!< frequency
const uint8_t UNITS_OHM                          = 0x09; //!< electrical resistance
const uint8_t UNITS_WATT                         = 0x0A; //!< power or radiant flux
const uint8_t UNITS_KILOGRAM                     = 0x0B; //!< mass (1 000 grams)
const uint8_t UNITS_METERS                       = 0x0C; //!< length
const uint8_t UNITS_METERS_SQUARED               = 0x0D; //!< area
const uint8_t UNITS_METERS_CUBED                 = 0x0E; //!< volume
const uint8_t UNITS_KILOGRAMES_PER_METER_CUBED   = 0x0F; //!< density
const uint8_t UNITS_METERS_PER_SECOND            = 0x10; //!< speed
const uint8_t UNITS_METERS_PER_SECOND_SQUARED    = 0x11; //!< acceleration
const uint8_t UNITS_NEWTON                       = 0x12; //!< force
const uint8_t UNITS_JOULE                        = 0x13; //!< energy
const uint8_t UNITS_PASCAL                       = 0x14; //!< pressure (1 N/m²)
const uint8_t UNITS_SECOND                       = 0x15; //!< time
const uint8_t UNITS_DEGREE                       = 0x16; //!< plane angle
const uint8_t UNITS_STERADIAN                    = 0x17; //!< solid angle
const uint8_t UNITS_CANDELA                      = 0x18; //!< luminous intensity
const uint8_t UNITS_LUMEN                        = 0x19; //!< luminous flux
const uint8_t UNITS_LUX                          = 0x1A; //!< illuminance
const uint8_t UNITS_IRE                          = 0x1B; //!< video signal energy
const uint8_t UNITS_BYTE                         = 0x1C; //!< digital information

// Table A-14: Sensor Unit Prefix
const uint8_t PREFIX_NONE    = 0x00;        //!< 1
const uint8_t PREFIX_DECI    = 0x01;        //!< 0.1
const uint8_t PREFIX_CENTI   = 0x02;        //!< 0.01
const uint8_t PREFIX_MILLI   = 0x03;        //!< 0.001
const uint8_t PREFIX_MICRO   = 0x04;        //!< 0.000 001
const uint8_t PREFIX_NANO    = 0x05;        //!< 0.000 000 001
const uint8_t PREFIX_PICO    = 0x06;        //!< 0.000 000 000 001
const uint8_t PREFIX_FEMPTO  = 0x07;        //!< 0.000 000 000 000 001
const uint8_t PREFIX_ATTO    = 0x08;        //!< 0.000 000 000 000 000 001
const uint8_t PREFIX_ZEPTO   = 0x09;        //!< 0.000 000 000 000 000 000 001
const uint8_t PREFIX_YOCTO   = 0x0a;        //!< 0.000 000 000 000 000 000 000 001
const uint8_t PREFIX_DECA    = 0x11;        //!< 10
const uint8_t PREFIX_HECTO   = 0x12;        //!< 100
const uint8_t PREFIX_KILO    = 0x13;        //!< 1 000
const uint8_t PREFIX_MEGA    = 0x14;        //!< 1 000 000
const uint8_t PREFIX_GIGA    = 0x15;        //!< 1 000 000 000
const uint8_t PREFIX_TERA    = 0x16;        //!< 1 000 000 000 000
const uint8_t PREFIX_PETA    = 0x17;        //!< 1 000 000 000 000 000
const uint8_t PREFIX_EXA     = 0x18;        //!< 1 000 000 000 000 000 000
const uint8_t PREFIX_ZETTA   = 0x19;        //!< 1 000 000 000 000 000 000 000
const uint8_t PREFIX_YOTTA   = 0x1a;        //!< 1 000 000 000 000 000 000 000 000

// Table A-15: Data Type Defines
const uint8_t DS_NOT_DEFINED     = 0x00;    //!< Data is undefined
const uint8_t DS_BIT_FIELD       = 0x01;    //!< Data is bit packed
const uint8_t DS_ASCII           = 0x02;    //!< Data is a string
const uint8_t DS_UNSIGNED_BYTE   = 0x03;    //!< Data is an array of unsigned bytes
const uint8_t DS_SIGNED_BYTE     = 0x04;    //!< Data is an array of signed bytes
const uint8_t DS_UNSIGNED_WORD   = 0x05;    //!< Data is an array of unsigned 16-bit words
const uint8_t DS_SIGNED_WORD     = 0x06;    //!< Data is an array of signed 16-bit words
const uint8_t DS_UNSIGNED_DWORD  = 0x07;    //!< Data is an array of unsigned 32-bit words
const uint8_t DS_SIGNED_DWORD    = 0x08;    //!< Data is an array of signed 32-bit words

// Table A-16 Parameter Description Command Class
const uint8_t CC_DISC    = 0b100; //!< PID supports DISCOVERY only \note Non-Standard value
const uint8_t CC_GET     = 0b001; //!< PID supports GET only
const uint8_t CC_SET     = 0b010; //!< PID supports SET only
const uint8_t CC_GET_SET = 0b011; //!< PID supports both GET and SET

/**
 * @brief The Parameter Description class
 */
struct ParameterDescription
{
  PID pid                = 0;               //!< PID #
  /// Defined PDL sizes are the minimum reqired length.
  /// \note Optional data lengths must be verified in the PID Action
  struct {
    uint8_t get          = 0;               // use get size for discovery size
    uint8_t get_response = 0;               // use get_response size for discovery response size
    uint8_t set          = 0;
    uint8_t set_response = 0;
  } pdl;                                    //!< PDL field
  uint8_t data_type      = DS_NOT_DEFINED;  //!< Table A-15 field code.
  uint8_t command_class  = -1;              //!< Table A-16 field code.
  const uint8_t type     = 0;               //!< no longer has any meaning
  uint8_t unit           = UNITS_NONE;      //!< Table A-13 SI unit.
  uint8_t prefix         = PREFIX_NONE;     //!< Table A-14 SI prefix.
  uint32_t minimum_value = 0;               //!< The lowest value that data can reach.
  uint32_t maximum_value = std::numeric_limits<uint32_t>::max(); //!< The hightest value that data can reach.
  uint32_t default_value = 0;               //!< the default value of that data.
  char description[32]   = {0};             //!< Describe the function of the specified PID.
};


} // namespace RDM