const isLocalhost = Boolean(
  window.location.hostname === 'localhost' ||
    // [::1] is the IPv6 localhost address.
    window.location.hostname === '[::1]' ||
    // 127.0.0.1/8 is considered localhost for IPv4.
    window.location.hostname.match(
      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
    )
);

export function generateInviteHref(invite: string): string {
  const postfix = invite ? `/check?inviteCode=${invite}` : '/check';
  if (isLocalhost) {
    return `${window.location.origin}${postfix}`
  }
  return `https://wapp.vic.yuanjin.net/#${postfix}`;
}