//
// Created by yelv1 on 24-12-31.
//

#ifndef RS485_PROTOCOL_H
#define RS485_PROTOCOL_H

#include "gd32e23x.h"
#include "systick.h"
#include "gd32e23x_libopt.h"
#include "board_config.h"
#include "usart.h"
#include "fwdgt.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ultrasonic_analog.h"

/******************************************************************************/

#define PROTOCOL_PACKAGE_HEADER   0xD5
#define PROTOCOL_BOARD_TYPE       0x04
#define PROTOCOL_PACKAGE_LENGTH   0x02

#define MAX_SERIAL_CMD_SIZE       16
#define MAX_SERIAL_CMD_COUNT      8

/******************************************************************************/

typedef enum
{
    VALIDATION_SUCCESS = 0,
    VALIDATION_CRC_ERROR = 1,
    VALIDATION_HEADER_ERROR = 2,
    VALIDATION_TYPE_ERROR = 4,
    VALIDATION_LENGTH_ERROR = 8
} validation_result_t;

typedef enum {
    PS_LEN,
    PS_TYPE,
    PS_PAYLOAD,
    PS_CRC,
    PS_NULL
}packet_state_t;

/******************************************************************************/

// void process_command(uint8_t* cmd, size_t length);

bool code_seen(char code);

float code_value(void);

uint8_t calculate_crc(uint8_t data[], uint8_t data_length);

validation_result_t validate_package_crc(uint8_t* data, uint8_t data_length);

validation_result_t validate_package_header(uint8_t* data);

validation_result_t validate_package_type(uint8_t* data);

validation_result_t validate_data_length(uint8_t* data);

void gd60914_tempture_report(void);

void ultrasonic_distance_report(void);

void start_communication(void);

void get_command(void);

void prcess_command(void);

#endif //RS485_PROTOCOL_H