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// s: DD-MM-YYYY, return: Date
function stringToDate(s) {
const date = s.split("-");
return new Date(`${date[2].padStart(4, "0")}-${date[1].padStart(2, "0")}-${date[0].padStart(2, "0")}`);
}
const isBetweenDates = (date, date1, date2) => {
date = floorDate(date);
date1 = floorDate(date1);
date2 = floorDate(date2);
return ((date.getTime() >= date1.getTime())
&& (date.getTime() <= date2.getTime()));
};
function floorDate(d)
{
return new Date(`${d.getFullYear()}-${(d.getMonth() + 1).toString().padStart(2, "0")}-${d.getDate().toString().padStart(2, "0")}`);
}
function weekdayToNumber(s)
{
const weekdays = [
/ma.*/i,
/ti.*/i,
/ke.*/i,
/to.*/i,
/pe.*/i,
/la.*/i,
/su.*/i
];
for(let day = 0; day < weekdays.length; day++)
{
if (s.match(weekdays[day]))
return day;
}
}
function run_at_monday_mornings(func) {
const ms_in_h = 60/*min*/ * 60/*s*/ * 1000/*ms*/;
const d = new Date();
const hour = d.getHours(); // eg. fri 17:20 -> 17
const weekday = d.getDay() || 7; // 1 = monday, 7 = sunday
days_to_elapse = 8 - weekday;
ms_to_elapse = ms_in_h * (
days_to_elapse * 24/*hours in a day*/
- hour + 1.5 // removes unneccessary hours so that we update it at 1:30 am
// 1:30 just in case the foods aren't updated instantly to the city's
// servers.
);
setTimeout(() => run_at_monday_mornings(func), ms_to_elapse);
if (weekday === 1)
func();
}
module.exports = {
fromString: stringToDate,
between: isBetweenDates,
weekdayToNumber: weekdayToNumber,
run_at_monday_mornings: run_at_monday_mornings
}
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