countdown/main.c

#include "play_raw_audio.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

// debug pulse audio problems
#define PA_DEBUG 0

int main(int argc, char **argv) {
	int countdown_min_total;

	char *HOME = getenv("HOME");
	char audio_file_path[256] = "";
	if (HOME != NULL) {
		strcpy(audio_file_path, HOME);
		strcat(audio_file_path, "/music/alarm-clock-elapsed.wav");
	} else {
		printf ("Can't find environment variable HOME!\n");
		return 1;
	}

	if (argc > 1) {
		countdown_min_total = atoi(argv[1]);
	} else {
		if (PA_DEBUG) {
			countdown_min_total = 0;
		} else {
			puts ("Define your countdown length in minutes!");
			scanf ("%d", &countdown_min_total);
		}
	}

	int countdown_sec_total = countdown_min_total * 60;

	int countdown_sec;
	int countdown_min;

	write(1, "\033c", 3);

	while (countdown_sec_total > 0) {
		if (countdown_sec_total >= 60) {
			countdown_sec = countdown_sec_total % 60;
			countdown_min = (countdown_sec_total - countdown_sec) / 60;
		} else {
			countdown_sec = countdown_sec_total;
			countdown_min = 0;
		}

		write(1, "\033c", 3);

		printf ("%02d:%02d", countdown_min, countdown_sec);
		fflush(stdout);
		printf ("\r");

		sleep(1);
		countdown_sec_total--;
	}

	printf ("THE TIME IS UP!\n");
	
	play_manual_alarm();

	return 0;
}