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Extract "Date" functions into "date.ts" util

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schroda
2024-05-03 16:19:20 +02:00
parent 29ade85f7f
commit d3999123ab
3 changed files with 34 additions and 49 deletions
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52
src/util/date.ts
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@@ -22,55 +22,65 @@ export const dateTimeFormatter = new Intl.DateTimeFormat(navigator.language, {
minute: '2-digit',
});
export const isWithinLastXMillis = (date: Date, timeMS: number) => {
const timeDifference = Date.now() - date.getTime();
return timeDifference <= timeMS;
export const epochToDate = (epoch: number): Date => {
const date = new Date(0); // The 0 there is the key, which sets the date to the epoch
date.setUTCSeconds(epoch);
return date;
};
export const getElapsedTimeSinceStartOfDay = (date: Date) => {
const startOfDay = new Date(date.getFullYear(), date.getMonth(), date.getDate());
return date.getTime() - startOfDay.getTime();
};
export const isTheSameDay = (first: Date, second: Date): boolean =>
first.getDate() === second.getDate() &&
first.getMonth() === second.getMonth() &&
first.getFullYear() === second.getFullYear();
/**
* Returns a string in localized format for the passed date.
*
* In case the date is from today or yesterday a special string will be returned including "Today"
* or "Yesterday" with the localized time of the passed date.
* or "Yesterday".
* Optionally this special string can include the localized time of the passed date ("Today/Yesterday at HH:mm").
*
* @example
* const today = new Date();
* const yesterday = new Date(today.getTime() - 1000 * 60 * 60 * 24);
* const someDate = new Date(1337, 4, 20);
*
* const todayAsString = getDateString(today); // => "Today at 02:50 AM"
* const yesterdayAsString = getDateString(yesterday) // => "Yesterday at 02:50 AM"
* const todayAsString = getDateString(today); // => "Today"
* const yesterdayAsString = getDateString(yesterday, true) // => "Yesterday at 02:50 AM"
* const someDate = getDateString(someDate) // => "04/20/1337"
*
*
* @param date
* @param withTime
*/
export const getUploadDateString = (date: Date | number) => {
const uploadDate = date instanceof Date ? date : new Date(date);
export const getDateString = (date: Date | number, withTime: boolean = false) => {
const actualDate = date instanceof Date ? date : new Date(date);
const today = new Date();
const todayElapsedTime = getElapsedTimeSinceStartOfDay(today);
const yesterday = new Date(today.getTime() - todayElapsedTime - 1000 * 60 * 60 * 24);
const elapsedTimeSinceYesterday = today.getTime() - yesterday.getTime();
const yesterday = new Date();
yesterday.setDate(today.getDate() - 1);
const wasUploadedToday = isWithinLastXMillis(uploadDate, todayElapsedTime);
const wasUploadedYesterday = isWithinLastXMillis(uploadDate, elapsedTimeSinceYesterday);
const wasUploadedToday = isTheSameDay(today, actualDate);
const wasUploadedYesterday = isTheSameDay(yesterday, actualDate);
const addTimeString = wasUploadedToday || wasUploadedYesterday;
const timeString = addTimeString ? timeFormatter.format(uploadDate) : '';
const timeString = addTimeString ? timeFormatter.format(actualDate) : '';
if (wasUploadedToday) {
return t('global.date.label.today_at', { timeString });
if (withTime) {
return t('global.date.label.today_at', { timeString });
}
return t('global.date.label.today');
}
if (wasUploadedYesterday) {
return t('global.date.label.yesterday_at', { timeString });
if (withTime) {
return t('global.date.label.yesterday_at', { timeString });
}
return t('global.date.label.yesterday');
}
return dateFormatter.format(uploadDate);
return dateFormatter.format(actualDate);
};