#pragma once

#include <stdint.h>

typedef int32_t	time_t;

struct datetime {
	uint16_t	year;
	uint8_t		month;	// 0..11
	uint8_t		day;	// 0..30
	uint8_t		hour;	// 0..23
	uint8_t		minute;	// 0..59
	uint8_t		second;	// 0..59
};

typedef struct datetime datetime_t;

#define UTCH_CHECK		0
#define UTCH_CHANGING	1
#define UTCH_CHANGED	2


typedef int (*unix_time_changing_t)(int step,time_t oldtime,time_t newtime);


int		unix2datetime(time_t unix,datetime_t* datetime);
time_t	datetime2unix(datetime_t *datetime);

void unixtime_set(uint32_t _unixtime);
uint32_t unixtime(void);

uint32_t seconds_from_midnight(datetime_t *datetime);

static inline int daysfromyearstart(int month){
	switch (month){
		case 0:
			return 0;
		case 1:
			return 31;
		case 2:
			return 59;
		case 3:
			return 90;
		case 4:
			return 120;
		case 5:
			return 151;
		case 6:
			return 181;
		case 7:
			return 212;
		case 8:
			return 243;
		case 9:
			return 273;
		case 10:
			return 304;
		case 11:
			return 334;
		default:
			return 0;
	};
};