import { getDomain } from "tldts";

/**
 * Extract eTLD+1 domain from a URL string.
 * Returns null for invalid URLs.
 */
export function extractDomain(url: string): string | null {
  try {
    const normalized = url.startsWith("http") ? url : "https://" + url;
    const parsed = getDomain(normalized);
    return parsed ?? null;
  } catch {
    return null;
  }
}

/**
 * Get displayable domain from a URL string.
 */
export function getDisplayDomain(url: string): string {
  try {
    const normalized = url.startsWith("http") ? url : "https://" + url;
    const { hostname } = new URL(normalized);
    return hostname;
  } catch {
    return url;
  }
}