export function formatElapsedTime(timestamp: string): string {
  const now = Date.now();
  const then = new Date(timestamp).getTime();
  const diffMs = now - then;

  const minutes = Math.floor(diffMs / 60000);
  const hours = Math.floor(minutes / 60);
  const days = Math.floor(hours / 24);

  if (minutes < 1) return 'just now';
  if (minutes < 60) return `${minutes}m ago`;
  if (hours < 24) return `${hours}h ago`;
  if (days === 1) return '1 day ago';
  return `${days} days ago`;
}

export function isStale(timestamp: string, thresholdDays: number = 3): boolean {
  const now = Date.now();
  const then = new Date(timestamp).getTime();
  const diffDays = (now - then) / (1000 * 60 * 60 * 24);
  return diffDays > thresholdDays;
}