import type { useI18n } from '../i18n';

type Translate = ReturnType<typeof useI18n>['t'];

export function formatRelativeTime(iso: string, t: Translate): string {
  const diff = Date.now() - new Date(iso).getTime();
  const mins = Math.floor(diff / 60000);
  if (mins < 1) return t('time.justNow');
  if (mins < 60) return t('time.minutesAgo', { count: mins });
  const hours = Math.floor(mins / 60);
  if (hours < 24) return t('time.hoursAgo', { count: hours });
  const days = Math.floor(hours / 24);
  if (days < 7) return t('time.daysAgo', { count: days });
  return new Date(iso).toLocaleDateString();
}