const LINKEDIN_URL_REGEX = /^http(?:s)?:\/\/(?:www\.)?linkedin.com\//;

export const isLinkedinUrl = (url: string) => {
  if (!url) return;
  try {
    // Parse the URL to ensure it is valid
    const parsedUrl = new URL(url);
    if (!parsedUrl.href.match(LINKEDIN_URL_REGEX)) {
      return "URL must be from linkedin.com";
    }
  } catch {
    // If URL parsing fails, return false
    return "Must be a valid URL";
  }
};