#include <stdio.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "driver/uart.h"
#include "esp_log.h"

static const char *TAG = "uart_cmdr";
static QueueHandle_t uart0_queue;

#define BUF_SIZE (1024)
#define RD_BUF_SIZE (BUF_SIZE)

static void uart_event_task(void *pvParameters) {
  uart_event_t event;
  uint8_t *dtmp = (uint8_t*) malloc(RD_BUF_SIZE);
  uint8_t size = 0;

  bzero(dtmp, RD_BUF_SIZE);

  for(;;) {
    //Waiting for UART event.
    if(xQueueReceive(uart0_queue, (void * )&event, (portTickType)portMAX_DELAY)) {
      switch(event.type) {
        case UART_DATA:
          uart_read_bytes(UART_NUM_0, dtmp + size, event.size, portMAX_DELAY);
          //uart_write_bytes(UART_NUM_0, (const char*) dtmp + size, event.size);

          size += event.size;

          if(dtmp[size - 1] == '\n' || dtmp[size - 1] == '\r') {
            //uart_write_bytes(UART_NUM_0, (const char*) dtmp, size);

            bzero(dtmp, RD_BUF_SIZE);
          }

          break;

          case UART_BREAK:
          case UART_BUFFER_FULL:
          case UART_FIFO_OVF:
          case UART_FRAME_ERR:
          case UART_PARITY_ERR:
          case UART_DATA_BREAK:
          case UART_PATTERN_DET:
          case UART_EVENT_MAX:
          break;
      }
    }
  }
}