#ifndef _CAN_BUFFER_H
#define _CAN_BUFFER_H

#include <string.h>
#include "system.h"

#define CAN_BUFFER_SIZE 8

typedef enum CanBufferStatus {CAN_BUFFER_OK, CAN_BUFFER_EMPTY, CAN_BUFFER_FULL} CanBufferStatus;

typedef struct CanBuffer
{
    volatile CanRxMsgTypeDef data[CAN_BUFFER_SIZE];
    volatile uint8_t head;
    volatile uint8_t tail;
    volatile uint8_t count;
} CanBuffer;

void can_buffer_init(volatile CanBuffer *buffer);
CanBufferStatus can_buffer_add(volatile CanBuffer *buffer, CanRxMsgTypeDef *msg);
volatile CanRxMsgTypeDef* can_buffer_remove(volatile CanBuffer *buffer);
bool can_buffer_is_empty(volatile CanBuffer *buffer);
uint8_t can_buffer_size(volatile CanBuffer *buffer);

#endif //_CAN_BUFFER_H