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import SystemZone from "./zones/systemZone.js";
import IANAZone from "./zones/IANAZone.js";
import Locale from "./impl/locale.js";
import { normalizeZone } from "./impl/zoneUtil.js";
import { validateWeekSettings } from "./impl/util.js";
let now = () => Date.now(),
defaultZone = "system",
defaultLocale = null,
defaultNumberingSystem = null,
defaultOutputCalendar = null,
twoDigitCutoffYear = 60,
throwOnInvalid,
defaultWeekSettings = null;
/**
* Settings contains static getters and setters that control Luxon's overall behavior. Luxon is a simple library with few options, but the ones it does have live here.
*/
export default class Settings {
/**
* Get the callback for returning the current timestamp.
* @type {function}
*/
static get now() {
return now;
}
/**
* Set the callback for returning the current timestamp.
* The function should return a number, which will be interpreted as an Epoch millisecond count
* @type {function}
* @example Settings.now = () => Date.now() + 3000 // pretend it is 3 seconds in the future
* @example Settings.now = () => 0 // always pretend it's Jan 1, 1970 at midnight in UTC time
*/
static set now(n) {
now = n;
}
/**
* Set the default time zone to create DateTimes in. Does not affect existing instances.
* Use the value "system" to reset this value to the system's time zone.
* @type {string}
*/
static set defaultZone(zone) {
defaultZone = zone;
}
/**
* Get the default time zone object currently used to create DateTimes. Does not affect existing instances.
* The default value is the system's time zone (the one set on the machine that runs this code).
* @type {Zone}
*/
static get defaultZone() {
return normalizeZone(defaultZone, SystemZone.instance);
}
/**
* Get the default locale to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static get defaultLocale() {
return defaultLocale;
}
/**
* Set the default locale to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static set defaultLocale(locale) {
defaultLocale = locale;
}
/**
* Get the default numbering system to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static get defaultNumberingSystem() {
return defaultNumberingSystem;
}
/**
* Set the default numbering system to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static set defaultNumberingSystem(numberingSystem) {
defaultNumberingSystem = numberingSystem;
}
/**
* Get the default output calendar to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static get defaultOutputCalendar() {
return defaultOutputCalendar;
}
/**
* Set the default output calendar to create DateTimes with. Does not affect existing instances.
* @type {string}
*/
static set defaultOutputCalendar(outputCalendar) {
defaultOutputCalendar = outputCalendar;
}
/**
* @typedef {Object} WeekSettings
* @property {number} firstDay
* @property {number} minimalDays
* @property {number[]} weekend
*/
/**
* @return {WeekSettings|null}
*/
static get defaultWeekSettings() {
return defaultWeekSettings;
}
/**
* Allows overriding the default locale week settings, i.e. the start of the week, the weekend and
* how many days are required in the first week of a year.
* Does not affect existing instances.
*
* @param {WeekSettings|null} weekSettings
*/
static set defaultWeekSettings(weekSettings) {
defaultWeekSettings = validateWeekSettings(weekSettings);
}
/**
* Get the cutoff year after which a string encoding a year as two digits is interpreted to occur in the current century.
* @type {number}
*/
static get twoDigitCutoffYear() {
return twoDigitCutoffYear;
}
/**
* Set the cutoff year after which a string encoding a year as two digits is interpreted to occur in the current century.
* @type {number}
* @example Settings.twoDigitCutoffYear = 0 // cut-off year is 0, so all 'yy' are interpreted as current century
* @example Settings.twoDigitCutoffYear = 50 // '49' -> 1949; '50' -> 2050
* @example Settings.twoDigitCutoffYear = 1950 // interpreted as 50
* @example Settings.twoDigitCutoffYear = 2050 // ALSO interpreted as 50
*/
static set twoDigitCutoffYear(cutoffYear) {
twoDigitCutoffYear = cutoffYear % 100;
}
/**
* Get whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals
* @type {boolean}
*/
static get throwOnInvalid() {
return throwOnInvalid;
}
/**
* Set whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals
* @type {boolean}
*/
static set throwOnInvalid(t) {
throwOnInvalid = t;
}
/**
* Reset Luxon's global caches. Should only be necessary in testing scenarios.
* @return {void}
*/
static resetCaches() {
Locale.resetCache();
IANAZone.resetCache();
}
}