#ifndef H_UTIL
#define H_UTIL

#include <stdbool.h>
#include <stdint.h>
#include <time.h>

#define ONE_MINUTE 60
#define ONE_HOUR (60 * ONE_MINUTE)
#define ONE_DAY (24 * ONE_HOUR)

void set_time(const struct tm *time);

bool is_clock_24h(void);

// A day of a month, either an exact day or a "nth X-day of month"
struct month_relative_day {
	bool is_exact_day;
	union {
		uint8_t exact_day;
		struct {
			uint8_t weekday; // 0 = sunday, ..., 6 = saturday
			uint8_t weeknum;
		};
	};
};

uint8_t get_exact_day(const struct month_relative_day *mrday, uint8_t month, uint24_t year);

long lmax(long a, long b);

#endif