#define SPLITTER .

new MonthTimes[12][4] =
{
        { 31, 31, 2678400, 2678400 },
        { 28, 29, 2419200, 2505600 },
        { 31, 31, 2678400, 2678400 },
        { 30, 30, 2592000, 2592000 },
        { 31, 31, 2678400, 2678400 },
        { 30, 30, 2592000, 2592000 },
        { 31, 31, 2678400, 2678400 },
        { 31, 31, 2678400, 2678400 },
        { 30, 30, 2592000, 2592000 },
        { 31, 31, 2678400, 2678400 },
        { 30, 30, 2592000, 2592000 },
        { 31, 31, 2678400, 2678400 }
};

stock IsLeapYear(year)
{
        if(year % 4 == 0) return 1;
        else return 0;
}

stock TimestampToDate(Timestamp, &year, &month, &day, &hour, &minute, &second, HourGMT, MinuteGMT = 0)
{
        new tmp = 2;
        year = 1970;
        month = 1;
        Timestamp -= 172800;
        for(;;)
        {
                if(Timestamp >= 31536000)
                {
                        year ++;
                        Timestamp -= 31536000;
                        tmp ++;
                        if(tmp == 4)
                        {
                                if(Timestamp >= 31622400)
                                {
                                        tmp = 0;
                                        year ++;
                                        Timestamp -= 31622400;
                                }
                                else break;
                        }
                }
                else break;
        }
        for(new i = 0; i < 12; i ++)
        {
                if(Timestamp >= MonthTimes[i][2 + IsLeapYear(year)])
                {
                        month ++;
                        Timestamp -= MonthTimes[i][2 + IsLeapYear(year)];
                }
                else break;
        }
        day = 1 + (Timestamp / 86400);
        Timestamp %= 86400;
        hour = HourGMT + (Timestamp / 3600);
        Timestamp %= 3600;
        minute = MinuteGMT + (Timestamp / 60);
        second = (Timestamp % 60);
        if(minute > 59)
        {
                minute = 0;
                hour ++;
        }
        if(hour > 23)
        {
                hour -= 24;
                day ++;
        }
        if(day > MonthTimes[month][IsLeapYear(year)])
        {
                day = 1;
                month ++;
        }
        if(month > 12)
        {
                month = 1;
                year ++;
        }
        return 1;
}

stock DateToTimestamp(str[11])
{
        new date[3];
        if(!sscanf(str,"p<"#SPLITTER">ddd",date[0],date[1],date[2]))
        {
                new total = 0, tmp = 0;
                total += date[0] * 86400;
                if(date[1] == 2 && date[0] < 29) tmp = ((date[2] - 1968) / 4 - 2);
                else tmp = ((date[2] - 1968) / 4 - 1);
                total += tmp * 31622400;
                total += (date[2] - 1970 - tmp) * 31536000;
                for(new i = 1; i < date[1]; i ++) total += MonthTimes[i][0 + IsLeapYear(date[2])] * 86400;
                return total;
        }
        else return -1;
}
stock GetFormattedDate(timestamp)
{
	new year, month, day, hour, minute, second, dest[40];
	TimestampToDate(timestamp, year, month, day, hour, minute, second, 1, 0);
	format(dest, sizeof(dest), "%02d.%02d.%d %02d:%02d:%02d", day, month, year, hour, minute, second);
	return dest;
}

stock GetRelativeDate(timestamp)
{
	new dest[40];
	if(timestamp == 0) return format(dest, sizeof(dest), "Nigdy"), dest;
	else
	{
		new year, month, day, hour, minute, second, t_year, t_month, t_day, t_hour, t_minute, t_second;
		TimestampToDate(timestamp, t_year, t_month, t_day, t_hour, t_minute, t_second, 1, 0);
		TimestampToDate(gettime(), year, month, day, hour, minute, second, 1, 0);
		if(t_year == year && t_month == month && t_day == day) return format(dest, sizeof(dest), "dziś, %02d:%02d", t_hour, t_minute), dest;
		TimestampToDate(gettime()-86400, year, month, day, hour, minute, second, 1, 0);
		if(t_year == year && t_month == month && t_day == day) return format(dest, sizeof(dest), "wczoraj, %02d:%02d", t_hour, t_minute), dest;
		return format(dest, sizeof(dest), "%02d.%02d.%02d, %02d:%02d", t_day, t_month, t_year, t_hour, t_minute),  dest;
	}
}