donutbrowser/src/lib/flag-utils.ts

/**
 * Get flag icon CSS class for a country code (ISO 3166-1 alpha-2)
 */
export function getFlagIconClass(countryCode: string): string {
  if (!countryCode || countryCode.length !== 2) {
    return "";
  }
  return `fi fi-${countryCode.toLowerCase()}`;
}

/**
 * Format relative time (e.g., "2 minutes ago", "1 hour ago")
 */
export function formatRelativeTime(timestamp: number): string {
  const now = Math.floor(Date.now() / 1000);
  const secondsAgo = now - timestamp;

  if (secondsAgo < 60) {
    return "just now";
  }

  const minutesAgo = Math.floor(secondsAgo / 60);
  if (minutesAgo < 60) {
    return `${minutesAgo} minute${minutesAgo !== 1 ? "s" : ""} ago`;
  }

  const hoursAgo = Math.floor(minutesAgo / 60);
  if (hoursAgo < 24) {
    return `${hoursAgo} hour${hoursAgo !== 1 ? "s" : ""} ago`;
  }

  const daysAgo = Math.floor(hoursAgo / 24);
  return `${daysAgo} day${daysAgo !== 1 ? "s" : ""} ago`;
}