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import {$gettext, $gettextInterpolate} from "./gettext";
class DateTime
{
/**
* A helper method for padding parts of dates with leading zeros.
* @param item The part of a date string to pad.
* @param target_length The length of the string to output.
* @returns {string} A padded version of $what.
*/
pad(item: number, target_length: number = 2) : string {
const target: string = `00000000${item}`;
return target.substring(target.length - target_length);
}
/**
* Returns an ISO representation of the specified Date object.
* in the format YYYY-MM-DD.
*
* @param date The Date object to format as ISO date.
* @returns {string} The ISO date string of the Date object.
*/
getISODate(date: Date) : string {
return date.getFullYear() + '-' + this.pad(date.getMonth() + 1) + '-' + this.pad(date.getDate());
}
/**
* Returns a formatted version of the specified Date object
* in the Stud.IP date formatting.
*
* @param date The Date object to be formatted.
* @param relative_value Whether to return a relative time value (true)
* or an absolute one (false). Defaults to false.
* @param date_only Whether to return the date only (true) or date and time (false).
* Defaults to false. Only regarded when $relative_value is false.
* @param html Whether to format the date as HTML (true) or as plain text (false). Defaults to false.
*
* @returns {*|string} The date, formatted according to the Stud.IP format for dates.
*/
getStudipDate(
date: Date,
relative_value: boolean = false,
date_only: boolean = false,
html: boolean = false) : string {
if (relative_value) {
const now: number = Date.now();
const date_ts: number = date.getMilliseconds();
if (now - date_ts < 60 * 1000) {
return $gettext('Jetzt');
}
if (now - date_ts < 2 * 60 * 60 * 1000) {
return $gettextInterpolate(
'Vor %{ minutes } Minuten',
{minutes: Math.floor((now - date_ts) / (1000 * 60))}
);
}
return this.pad(date.getHours()) + ':' + this.pad(date.getMinutes());
}
if (date_only) {
if (html) {
return '<span class="day">'
+ this.pad(date.getDate())
+ '.</span><span class="month">'
+ this.pad(date.getMonth() + 1)
+ '.</span><span class="year">'
+ date.getFullYear()
+ '</span>';
} else {
return this.pad(date.getDate()) + '.' + this.pad(date.getMonth() + 1) + '.' + date.getFullYear();
}
}
if (html) {
return '<span class="day">'
+ this.pad(date.getDate())
+ '.</span><span class="month">'
+ this.pad(date.getMonth() + 1)
+ '.</span><span class="year">'
+ date.getFullYear()
+ '</span> <span class="time">'
+ this.pad(date.getHours()) + ':' + this.pad(date.getMinutes())
+ '</span>';
} else {
return this.pad(date.getDate()) + '.' + this.pad(date.getMonth() + 1) + '.' + date.getFullYear() + ' ' + this.pad(date.getHours()) + ':' + this.pad(date.getMinutes());
}
}
getDayOfWeekName(dow: number, short: boolean = false): string {
if (dow === 0 || dow === 7) {
if (short) {
return $gettext('So.');
} else {
return $gettext('Sonntag');
}
} else if (dow === 1) {
if (short) {
return $gettext('Mo.');
} else {
return $gettext('Montag');
}
} else if (dow === 2) {
if (short) {
return $gettext('Di.');
} else {
return $gettext('Dienstag');
}
} else if (dow === 3) {
if (short) {
return $gettext('Mi.');
} else {
return $gettext('Mittwoch');
}
} else if (dow === 4) {
if (short) {
return $gettext('Do.');
} else {
return $gettext('Donnerstag');
}
} else if (dow === 5) {
if (short) {
return $gettext('Fr.');
} else {
return $gettext('Freitag');
}
} else if (dow === 6) {
if (short) {
return $gettext('Sa.');
} else {
return $gettext('Samstag');
}
} else {
return '';
}
}
}
export default DateTime;
export const datetime: DateTime = new DateTime();
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