1 files changed, 124 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/utils/datetime/timeago_utility.js b/app/assets/javascripts/lib/utils/datetime/timeago_utility.js
new file mode 100644
index 00000000000..512b1f079a1
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/datetime/timeago_utility.js
@@ -0,0 +1,124 @@
+import $ from 'jquery';
+import * as timeago from 'timeago.js';
+import { languageCode, s__ } from '../../../locale';
+import { formatDate } from './date_format_utility';
+
+window.timeago = timeago;
+
+/**
+ * Timeago uses underscores instead of dashes to separate language from country code.
+ *
+ * see https://github.com/hustcc/timeago.js/tree/v3.0.0/locales
+ */
+const timeagoLanguageCode = languageCode().replace(/-/g, '_');
+
+/**
+ * Registers timeago locales
+ */
+const memoizedLocaleRemaining = () => {
+  const cache = [];
+
+  const timeAgoLocaleRemaining = [
+    () => [s__('Timeago|just now'), s__('Timeago|right now')],
+    () => [s__('Timeago|just now'), s__('Timeago|%s seconds remaining')],
+    () => [s__('Timeago|1 minute ago'), s__('Timeago|1 minute remaining')],
+    () => [s__('Timeago|%s minutes ago'), s__('Timeago|%s minutes remaining')],
+    () => [s__('Timeago|1 hour ago'), s__('Timeago|1 hour remaining')],
+    () => [s__('Timeago|%s hours ago'), s__('Timeago|%s hours remaining')],
+    () => [s__('Timeago|1 day ago'), s__('Timeago|1 day remaining')],
+    () => [s__('Timeago|%s days ago'), s__('Timeago|%s days remaining')],
+    () => [s__('Timeago|1 week ago'), s__('Timeago|1 week remaining')],
+    () => [s__('Timeago|%s weeks ago'), s__('Timeago|%s weeks remaining')],
+    () => [s__('Timeago|1 month ago'), s__('Timeago|1 month remaining')],
+    () => [s__('Timeago|%s months ago'), s__('Timeago|%s months remaining')],
+    () => [s__('Timeago|1 year ago'), s__('Timeago|1 year remaining')],
+    () => [s__('Timeago|%s years ago'), s__('Timeago|%s years remaining')],
+  ];
+
+  return (number, index) => {
+    if (cache[index]) {
+      return cache[index];
+    }
+    cache[index] = timeAgoLocaleRemaining[index] && timeAgoLocaleRemaining[index]();
+    return cache[index];
+  };
+};
+
+const memoizedLocale = () => {
+  const cache = [];
+
+  const timeAgoLocale = [
+    () => [s__('Timeago|just now'), s__('Timeago|right now')],
+    () => [s__('Timeago|just now'), s__('Timeago|in %s seconds')],
+    () => [s__('Timeago|1 minute ago'), s__('Timeago|in 1 minute')],
+    () => [s__('Timeago|%s minutes ago'), s__('Timeago|in %s minutes')],
+    () => [s__('Timeago|1 hour ago'), s__('Timeago|in 1 hour')],
+    () => [s__('Timeago|%s hours ago'), s__('Timeago|in %s hours')],
+    () => [s__('Timeago|1 day ago'), s__('Timeago|in 1 day')],
+    () => [s__('Timeago|%s days ago'), s__('Timeago|in %s days')],
+    () => [s__('Timeago|1 week ago'), s__('Timeago|in 1 week')],
+    () => [s__('Timeago|%s weeks ago'), s__('Timeago|in %s weeks')],
+    () => [s__('Timeago|1 month ago'), s__('Timeago|in 1 month')],
+    () => [s__('Timeago|%s months ago'), s__('Timeago|in %s months')],
+    () => [s__('Timeago|1 year ago'), s__('Timeago|in 1 year')],
+    () => [s__('Timeago|%s years ago'), s__('Timeago|in %s years')],
+  ];
+
+  return (number, index) => {
+    if (cache[index]) {
+      return cache[index];
+    }
+    cache[index] = timeAgoLocale[index] && timeAgoLocale[index]();
+    return cache[index];
+  };
+};
+
+timeago.register(timeagoLanguageCode, memoizedLocale());
+timeago.register(`${timeagoLanguageCode}-remaining`, memoizedLocaleRemaining());
+
+export const getTimeago = () => timeago;
+
+/**
+ * For the given elements, sets a tooltip with a formatted date.
+ * @param {JQuery} $timeagoEls
+ * @param {Boolean} setTimeago
+ */
+export const localTimeAgo = ($timeagoEls, setTimeago = true) => {
+  $timeagoEls.each((i, el) => {
+    $(el).text(timeago.format($(el).attr('datetime'), timeagoLanguageCode));
+  });
+
+  if (!setTimeago) {
+    return;
+  }
+
+  function addTimeAgoTooltip() {
+    $timeagoEls.each((i, el) => {
+      // Recreate with custom template
+      el.setAttribute('title', formatDate(el.dateTime));
+    });
+  }
+
+  requestIdleCallback(addTimeAgoTooltip);
+};
+
+/**
+ * Returns remaining or passed time over the given time.
+ * @param {*} time
+ * @param {*} expiredLabel
+ */
+export const timeFor = (time, expiredLabel) => {
+  if (!time) {
+    return '';
+  }
+  if (new Date(time) < new Date()) {
+    return expiredLabel || s__('Timeago|Past due');
+  }
+  return timeago.format(time, `${timeagoLanguageCode}-remaining`).trim();
+};
+
+window.gl = window.gl || {};
+window.gl.utils = {
+  ...(window.gl.utils || {}),
+  localTimeAgo,
+};