feat(i18n): full relative time

packages/i18n/src/i18n.ts

@@ -128,10 +128,60 @@ export class GecutI18N implements I18nInterface {
  return this.msg('just_now');
  }
 
+ rtf(_origin: string | Date, _destination: string | Date = new Date()): string {
+ const SECOND = 1000;
+ const MINUTE = 60 * SECOND;
+ const HOUR = 60 * MINUTE;
+ const DAY = 24 * HOUR;
+ const MONTH = 30 * DAY;
+ const YEAR = 365 * DAY;
+
+ const units: Record<DateTimeRelativeKey, number> = {
+ years: YEAR,
+ months: MONTH,
+ days: DAY,
+ hours: HOUR,
+ minutes: MINUTE,
+ seconds: SECOND,
+ };
+
+ const origin = new Date(_origin);
+ const destination = new Date(_destination);
+
+ let elapsed = destination.getTime() - origin.getTime();
+
+ const timeUnits: Record<string, number> = {};
+
+ for (const [unit, amount] of Object.entries(units)) {
+ const count = Math.floor(elapsed / amount);
+ if (count > 0) {
+ timeUnits[unit] = count;
+ elapsed -= count * amount;
+ }
+ }
+
+ const timeStrings: string[] = [];
+
+ for (const [unit, count] of Object.entries(timeUnits)) {
+ const resourceKey = GecutI18N.getResourcesKeyForRelativeTime(count, unit as DateTimeRelativeKey);
+
+ timeStrings.push(this.msg(resourceKey, {'{0}': count.toString()}));
+ }
+
+ if (timeStrings.length === 0) {
+ return this.msg('just_now');
+ }
+
+ return timeStrings.join(' ' + this.msg('and') + ' ');
+ }
+
  private static getResourcesKeyForRelativeTime(count: number, unit: DateTimeRelativeKey): string {
  if (count === 1) {
  return `one_${unit}`;
  }
+ if (unit === 'seconds') {
+ return 'other_seconds_ago';
+ }
  return `other_${unit}`;
  }
 }

packages/i18n/src/types.ts

@@ -19,7 +19,13 @@ export interface LocaleType {
 
 type __DateTimeRelativeKey = 'year' | 'month' | 'day' | 'hour' | 'minute' | 'second';
 
-export type BaseTranslationsKeys = `one_${__DateTimeRelativeKey}s` | `other_${__DateTimeRelativeKey}s` | 'just_now';
+export type BaseTranslationsKeys =
+ | `one_${__DateTimeRelativeKey}s_ago`
+ | `other_${__DateTimeRelativeKey}s_ago`
+ | `one_${__DateTimeRelativeKey}s`
+ | `other_${__DateTimeRelativeKey}s`
+ | 'and'
+ | 'just_now';
 
 export type DateTimeRelativeKey = `${__DateTimeRelativeKey}s`;