#include "usart.h"
#include <cstdio>
#include <cstring>
#include <signal.h>

class Top : public BaseLayer {
  static constexpr int max = 1024;
  volatile unsigned index;
  int  passcnt;
  char buffer [max];
  public:
    explicit Top () : BaseLayer(), index(0u), passcnt(0) {}
    void puts (const char * str) {
      const unsigned l = strlen(str);
      Down(str, l);
    }
    uint32_t Up(const char * data, const uint32_t len) override {
      for (unsigned n=0; n<len; n++) {
        const char c = data [n];
        buffer [index++] = c;
        if (c == '\n') {
          buffer [index - 2] = '\0';
          printf("Rx (%d) %s\n", passcnt++, buffer);
          index = 0u;
        }
      }
      return len;
    }
};
static const char * TestString = "THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG'S BACK 1234567890\r\n";
static volatile bool loop = false;
static void Handler (int) {
  loop = false;
}
int main (void) {
  loop = true;
  signal (SIGINT, Handler);
  UsartClass usart ("/dev/serial/by-id/usb-Kizarm_Labs._USB__=__USART_0002-if00", 9600);
  Top top;
  top += usart;
  while (loop) {
    top.puts(TestString);
  }
  return 0;
}