#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include <console.h>
#include <rtc.h>

#include <shell/rtc.h>

int shell_date(struct console *con, size_t argc, const char **argv)
{
	struct tm now;

	(void)argv;
	(void)argc;

	rtc_get_time(&now);

	fprintf(con->fp, "%02d:%02d:%02d %02d-%02d-%d\n",
		now.tm_hour, now.tm_min, now.tm_sec,
		now.tm_mday, now.tm_mon + 1, now.tm_year + 1900);

	return 0;
}

int shell_time(struct console *con, size_t argc, const char **argv)
{
	struct tm now;

	(void)argv;
	(void)argc;

	rtc_get_time(&now);

	fprintf(con->fp, "%ld\n", mktime(&now));

	return 0;
}

int shell_set_time(struct console *con, size_t argc, const char **argv)
{
	struct tm now;
	time_t time;

	if (argc < 1) {
		fprintf(con->fp, "usage: set-time <seconds>\n");
		return -1;
	}

	time = (time_t)strtoul(argv[0], NULL, 0);
	gmtime_r(&time, &now);
	rtc_init(&now);

	fprintf(con->fp, "%02d:%02d:%02d %02d-%02d-%d\n",
		now.tm_hour, now.tm_min, now.tm_sec,
		now.tm_mday, now.tm_mon + 1, now.tm_year + 1900);

	return 0;
}

int shell_set_date(struct console *con, size_t argc, const char **argv)
{
	struct tm now;

	if (argc < 2) {
		fprintf(con->fp, "usage: set-date <format> <date>\n");
		return -1;
	}

	rtc_get_time(&now);

	if (!strptime(argv[1], argv[0], &now)) {
		fprintf(con->fp, "error\n");
		return -1;
	}

	rtc_init(&now);

	fprintf(con->fp, "%02d:%02d:%02d %02d-%02d-%d\n",
		now.tm_hour, now.tm_min, now.tm_sec,
		now.tm_mday, now.tm_mon + 1, now.tm_year + 1900);

	return 0;
}