// #include <stdio.h>
#include <string.h>
#include "FreeRTOS.h"
#include "task.h"
#include "hart.h"
#include "gpio.h"

void hart_send(UART_HandleTypeDef *huart, uint8_t *data)
{
    usart_printf(huart, (char *)data);
}

void parse_scom_hart(st_scom *scom)
{
    if (scom == &scom1_hart)
    {
        scom->rx_flag = FALSE;

        if ((scom->rx_buff[0] == 0xff) && (scom->rx_buff[1] == 0xff) && (scom->rx_buff[scom->rx_len - 1] == 0xAA))
        {
            ;
        }
        scom->tx_flag = TRUE;
        scom->rx_len = 0;
    }
}

void hart_communicate(st_scom *scom)
{
    uint8_t hart_data_test[18] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xaa};

    HART_RTS(RTS_OFF);

    if (scom->rx_flag == TRUE)
    {
        scom->rx_flag = FALSE;
        parse_scom_hart(scom);
    }

    // scom->tx_flag = TRUE;
    if (scom->tx_flag == TRUE)
    {
        scom->tx_flag = FALSE;
        HART_RTS(RTS_ON);
        vTaskDelay(5);
        memcpy(scom->tx_buff, hart_data_test, sizeof(hart_data_test));
        hart_send(&huart1, scom->tx_buff);
        HART_RTS(RTS_OFF);
    }
}

//DEVICE <---SIG---> PC
//将来自设备的HART数据装载至com485_tx，将comhart_tx的HART数据发送至设备
void transparent_hart(st_scom *scom)
{
    if (scom != &scom1_hart) return;

    HART_RTS(RTS_OFF);

    //DEVICE -> SIG
    if (scom->rx_flag == TRUE)
    {
        scom->rx_flag = FALSE;
        
        //中断内接收到的数据是否符合HART数据报，符合则写入com485_tx，准备发送至PC
        if ((scom->rx_buff[0] == 0xff) && (scom->rx_buff[1] == 0xff) && (scom->rx_buff[scom->rx_len - 1] == 0xAA))
        {
            //SIG -> PC
            memcpy(scom2_rs485.tx_buff, scom->rx_buff, sizeof(scom->rx_buff));
            scom2_rs485.tx_len = scom->rx_len;
            scom2_rs485.tx_flag = TRUE;
        }
        scom->rx_len = 0;
    }

    //SIG -> DEVICE
    if (scom->tx_flag == TRUE)
    {
        scom->tx_flag = FALSE;
        HART_RTS(RTS_ON);
        vTaskDelay(5);

        hart_send(&huart1, scom->tx_buff);

        HART_RTS(RTS_OFF);
    }
}