/*
 *	Experiments with the serial input 
 *	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include  <stdio.h>
#include  <stdlib.h>
#include  <strings.h>
#include  <ctype.h>
#include  <time.h>
#include  <unistd.h>			//Used for UART
#include  <fcntl.h>			//Used for UART
#include  <errno.h>
#include  <termios.h>			//Used for UART
#include  <getopt.h>

#include  "serial.h"

int	verbosity;

/* ---------------------------------------------------------------- */
int loop(int sfd, int iters)
{
int		count, foo;
long		temps;
char		ligne[200];
float		datas[4];
struct tm       *p_tms;

for (count=0; count<iters; count++) {
	foo = getline_to(sfd, ligne, 100, 0);
	//
	if (verbosity) {
		/* fprintf(stderr, "getline #%d on %d -> %d\n",
					count, iters, foo); */
		fprintf(stderr, "%s\n", ligne);
		}
	foo = parse4values(ligne, 'T', datas);
	// 
	if (foo >= 0) {
		temps = time(NULL);
		values2temperature(datas);
		printf("%ld %f %f %f %f\n", temps,
				datas[0], datas[1], datas[2], datas[3]);
		fflush(stdout);
		}
	else	{
		fprintf(stderr, "%s: parse -> %d\n", __func__, foo);
		}
	//
	if (verbosity > 1)
		{
		p_tms = localtime(&temps);
		(void)strftime(ligne, 19, "%H:%M:%S", p_tms);
		fprintf(stderr, "\t%s\n", ligne);
		}
	}
return 0;
}
/* ---------------------------------------------------------------- */
void help(int k)
{
puts("options : ");
puts("\t-d\tserial device to read.");
puts("\t-n\tnumber of records to grab.");
puts("\t-v\tincrease verbosity.");
}
/* ---------------------------------------------------------------- */
int main (int argc, char *argv[])
{
int		serial_in;
char		*device = "/dev/ttyACM0";
int		nbre, speed, opt;

/* set some default values */
verbosity	= 0;
nbre		= 25;
speed		= 9600;

while ((opt = getopt(argc, argv, "d:n:vh")) != -1) {
	switch (opt) {
		case 'v':	verbosity++;		break;
		case 'n':	nbre = atoi(optarg);	break;
		case 'd':	device = optarg;	break;
		case 'h':	help(0);		exit(0);
		default:
			fprintf(stderr, "%s : uh ?", argv[0]);
			exit(1);
			break;
		}

	}

if (verbosity) {
	fprintf(stderr, "Testing Serial Software - compiled "	\
				__DATE__ " " __TIME__ "\n");
	}

serial_in = prepare_UART(device, speed);
if (serial_in < 0) {
	fprintf(stderr, "%s : open device : error %d on %s\n",
				argv[0], serial_in, device);
	exit(1);
	}

fprintf(stderr, "going to listen on %d\n", serial_in);

(void)loop(serial_in, nbre);

return 0;
}

/* ---------------------------------------------------------------- */