/*
 * Copyright (C) 2021  P. J. McDermott
 *
 * This file is part of @
 *
 * @ is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @ is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with @.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include "datetime.h"

int
main(int argc, const char *argv[])
{
	time_t arg;
	time_t now;
	time_t dif;

	if (datetime_parse(argc - 1, argv + 1, &arg) < 0) {
		return EXIT_FAILURE;
	}

	setvbuf(stdout, NULL, _IONBF, 0);
	time(&now);
	while (arg > now) {
		dif = arg - now;
		printf("\r%02d:%02d:%02d",
				(int) dif / 60 / 60,
				(int) dif / 60 % 60,
				(int) dif      % 60);
		sleep(1);
		time(&now);
	}
	puts("");

	return EXIT_SUCCESS;
}