import dayjs from 'dayjs';const {pageData} = window.config; export const HALF_MINUTE = 30 * 1000;export const ONE_MINUTE = 60 * 1000;export const ONE_HOUR = 60 * ONE_MINUTE;export const ONE_DAY = 24 * ONE_HOUR; const ABSOLUTE_DATETIME_FORMAT = new Intl.DateTimeFormat(navigator.language, {  year: 'numeric',  month: 'short',  day: 'numeric',  hour: '2-digit',  minute: '2-digit',  timeZoneName: 'short',});const FALLBACK_DATETIME_FORMAT = new Intl.RelativeTimeFormat(navigator.language, {style: 'long'}); /** * A list of plural rules for all languages. * `plural_rules.go` defines the index for each of the 14 known plural rules. * * `pageData.PLURAL_RULE_LANG` is the index of the plural rule for the current language. * `pageData.PLURAL_RULE_FALLBACK` is the index of the plural rule for the default language, * to be used when a string is not translated in the current language. * * Each plural rule is a function that maps an amount `n` to the appropriate plural form index. * Which index means which rule is specific for each language and also defined in `plural_rules.go`. * The actual strings are in `pageData.PLURALSTRINGS_LANG` and `pageData.PLURALSTRINGS_FALLBACK` * respectively, which is an array indexed by the plural form index. * * Links to the language plural rule and form definitions: * https://codeberg.org/forgejo/forgejo/src/branch/forgejo/modules/translation/plural_rules.go * https://www.unicode.org/cldr/charts/46/supplemental/language_plural_rules.html * https://translate.codeberg.org/languages/$LANGUAGE_CODE/#information * https://github.com/WeblateOrg/language-data/blob/main/languages.csv */const PLURAL_RULES = [  // [ 0] Common 2-form, e.g. English, German  function (n) { return n !== 1 ? 1 : 0 },   // [ 1] Bengali 2-form  function (n) { return n > 1 ? 1 : 0 },   // [ 2] Icelandic 2-form  function (n) { return n % 10 !== 1 || n % 100 === 11 ? 1 : 0 },   // [ 3] Filipino 2-form  function (n) { return n !== 1 && n !== 2 && n !== 3 && (n % 10 === 4 || n % 10 === 6 || n % 10 === 9) ? 1 : 0 },   // [ 4] One form  function (_) { return 0 },   // [ 5] Czech 3-form  function (n) { return (n === 1) ? 0 : (n >= 2 && n <= 4) ? 1 : 2 },   // [ 6] Russian 3-form  function (n) { return n % 10 === 1 && n % 100 !== 11 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2 },   // [ 7] Polish 3-form  function (n) { return n === 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2 },   // [ 8] Latvian 3-form  function (n) { return (n % 10 === 0 || n % 100 >= 11 && n % 100 <= 19) ? 0 : ((n % 10 === 1 && n % 100 !== 11) ? 1 : 2) },   // [ 9] Lithunian 3-form  function (n) { return (n % 10 === 1 && (n % 100 < 11 || n % 100 > 19)) ? 0 : ((n % 10 >= 2 && n % 10 <= 9 && (n % 100 < 11 || n % 100 > 19)) ? 1 : 2) },   // [10] French 3-form  function (n) { return (n === 0 || n === 1) ? 0 : ((n !== 0 && n % 1000000 === 0) ? 1 : 2) },   // [11] Catalan 3-form  function (n) { return (n === 1) ? 0 : ((n !== 0 && n % 1000000 === 0) ? 1 : 2) },   // [12] Slovenian 4-form  function (n) { return n % 100 === 1 ? 0 : n % 100 === 2 ? 1 : n % 100 === 3 || n % 100 === 4 ? 2 : 3 },   // [13] Arabic 6-form  function (n) { return n === 0 ? 0 : n === 1 ? 1 : n === 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5 },]; /** * Look up the correct localized plural form for amount `n` for the string with the translation key `key`. * If the current language does not contain a translation for this key, fallback to the browser's formatting. */function GetPluralizedStringOrFallback(key, n, unit) {  const translation = pageData.PLURALSTRINGS_LANG[key]?.[PLURAL_RULES[pageData.PLURAL_RULE_LANG](n)];  if (translation) return translation.replace('%d', n);  return FALLBACK_DATETIME_FORMAT.format(-n, unit);} /** * Update the displayed text of the given relative-time DOM element with its * human-readable, localized relative time string. * Returns the recommended interval in milliseconds until the object should be updated again, * or null if the object is invalid. */export function DoUpdateRelativeTime(object, now) {  const absoluteTime = object.getAttribute('datetime');  if (!absoluteTime) {    return null;  // Object does not contain a datetime.  }   if (!now) now = Date.now();   const nowJS = dayjs(now);  const thenJS = dayjs(absoluteTime);   object.setAttribute('data-tooltip-content', ABSOLUTE_DATETIME_FORMAT.format(thenJS.toDate()));   if (nowJS.isBefore(thenJS)) {    // Datetime is in the future.    object.textContent = pageData.DATETIMESTRINGS.FUTURE;    return -Math.floor(nowJS.diff(thenJS, 'millisecond'));  }   const years = Math.floor(nowJS.diff(thenJS, 'year'));  if (years >= 1) {    // Datetime is at least one year ago.    if (years === 1 && pageData.DATETIMESTRINGS['relativetime.1year']) {      // Datetime is one year ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.1year'];    } else if (years === 2 && pageData.DATETIMESTRINGS['relativetime.2years']) {      // Datetime is two year ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.2years'];    } else {      // Datetime is more than a year ago.      object.textContent = GetPluralizedStringOrFallback('relativetime.years', years, 'year');    }    return ONE_DAY;  }   const months = Math.floor(nowJS.diff(thenJS, 'month'));  if (months >= 1) {    // Datetime is at least one month but less than a year ago.    if (months === 1 && pageData.DATETIMESTRINGS['relativetime.1month']) {      // Datetime is one month ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.1month'];    } else if (months === 2 && pageData.DATETIMESTRINGS['relativetime.2months']) {      // Datetime is two months ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.2months'];    } else {      // Datetime is several months ago (but less than a year).      object.textContent = GetPluralizedStringOrFallback('relativetime.months', months, 'month');    }    return ONE_DAY;  }   const weeks = Math.floor(nowJS.diff(thenJS, 'week'));  if (weeks >= 1) {    // Datetime is at least one week but less than a month ago.    if (weeks === 1 && pageData.DATETIMESTRINGS['relativetime.1week']) {      // Datetime is one week ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.1week'];    } else if (weeks === 2 && pageData.DATETIMESTRINGS['relativetime.2weeks']) {      // Datetime is two week ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.2weeks'];    } else {      // Datetime is several weeks ago (but less than a month).      object.textContent = GetPluralizedStringOrFallback('relativetime.weeks', weeks, 'week');    }    return ONE_DAY;  }   const days = Math.floor(nowJS.diff(thenJS, 'day'));  if (days >= 1) {    if (days === 1 && pageData.DATETIMESTRINGS['relativetime.1day']) {      // Datetime is one day ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.1day'];    } else if (days === 2 && pageData.DATETIMESTRINGS['relativetime.2days']) {      // Datetime is two days ago.      object.textContent = pageData.DATETIMESTRINGS['relativetime.2days'];    } else {      // Datetime is several days but less than a week ago.      object.textContent = GetPluralizedStringOrFallback('relativetime.days', days, 'day');    }    return ONE_DAY;  }   const hours = Math.floor(nowJS.diff(thenJS, 'hour'));  if (hours >= 1) {    // Datetime is one or more hours but less than a day ago.    object.textContent = GetPluralizedStringOrFallback('relativetime.hours', hours, 'hour');    return ONE_HOUR;  }   const minutes = Math.floor(nowJS.diff(thenJS, 'minute'));  if (minutes >= 1) {    // Datetime is one or more minutes but less than an hour ago.    object.textContent = GetPluralizedStringOrFallback('relativetime.mins', minutes, 'minute');    return ONE_MINUTE;  }   // Datetime is very recent.  object.textContent = pageData.DATETIMESTRINGS.NOW;  return HALF_MINUTE;} window.customElements.define('relative-time', class extends HTMLElement {  static observedAttributes = ['datetime'];   alive = false;  contentSpan = null;   update = (recurring) => {    if (!this.alive) return;     if (!this.shadowRoot) {      this.attachShadow({mode: 'open'});      this.contentSpan = document.createElement('span');      this.shadowRoot.append(this.contentSpan);    }     const next = DoUpdateRelativeTime(this);    if (recurring && next !== null) setTimeout(() => { this.update(true) }, next);  };   connectedCallback() {    this.alive = true;    this.update(true);  }   disconnectedCallback() {    this.alive = false;  }   attributeChangedCallback(name, oldValue, newValue) {    if (name === 'datetime' && oldValue !== newValue) this.update(false);  }   set textContent(value) {    if (this.contentSpan) this.contentSpan.textContent = value;  }  get textContent() {    return this.contentSpan?.textContent;  }});