union {

        float float_data;

        uint8_t byte_data[4];

    } data;

}  protocol_message_t;

typedef enum {

    ESTOP = 0x00,

    SILENCE_BUS = 0x01,

    SET_OUTPUT = 0X10,

    GET_DATA = 0x11,

    CONFIG = 0x12,

    CALIBRATE = 0x13,

} protocol_command_t;

typedef enum {

    MASTER = 0x00,

    AIRSENSE = 0x01,

    RELAYDRIVE = 0X02,

    WATERSENSE = 0x03,

    PROTOMODULE = 0x04,

} protocol_device_t;

typedef enum {

    NONE = 0x0000,

    DIGITAL_INPUT = 0x0001,

    FREQ_INPUT = 0x0002,

    ANALOG_INPUT = 0x0003,

    DIGITAL_OUTPUT = 0x0004,

    PWM_OUTPUT = 0x0005,

    ANALOG_OUTPUT = 0x0006,

    AIR_TEMP = 0x0007,

    AIR_HUMIDITY = 0x0008,

    AIR_PRESSURE = 0x0009,

    AMBIENT_LIGHT = 0x000A,

    WATER_TEMP = 0x000B,

    WATER_LEVEL = 0x000C,

    WATER_CONDUCTIVITY = 0x000D,

    WATER_PH = 0x000E,

    CAN_ID = 0x0100,

    DATA_RATE = 0x0101,

    LED_BRIGHTNESS = 0x0102,

    INPUT = 0x0103,

    OUTPUT = 0x0104,

} protocol_data_key_t;

void protocol_init(protocol_device_t device);

flash_settings_t* protocol_get_settings(void);

bool protocol_receive_message(CanRxMsgTypeDef* can_message);

bool protocol_send_message(protocol_message_t* message);

bool protocol_process_message(protocol_message_t* message);

bool protocol_send_data(protocol_data_key_t key, uint8_t sensor, float data);

bool protocol_send_test();

bool _protocol_config(protocol_message_t* message);

bool protocol_estop(bool value);

bool protocol_set_output(protocol_message_t* message);

bool protocol_get_data(protocol_message_t* message);

bool protocol_config(protocol_message_t* message);

#endif //_PROTOCOL_H_