import type {
  WhoIsResponse,
  WhoIsData,
  WhoIsEvent,
  WhoIsIpAddresses,
} from "@/types";

function checkEvents(events: WhoIsEvent[]): boolean {
  for (const event of events) {
    if (event.eventAction === "registration" && event.eventDate === "") {
      return true;
    }
  }
  return false;
}

function checkIpAddresses(ipAddresses: WhoIsIpAddresses): boolean {
  return ipAddresses.v4.length === 0 && ipAddresses.v6.length === 0;
}

function checkWhoIsData(data: WhoIsData): boolean {
  return (
    checkEvents(data.events) &&
    checkIpAddresses(data.ipAddresses) &&
    data.nameservers.length === 0
  );
}

export async function isDomainAvailable(domain: string): Promise<boolean> {
  try {
    const response = await fetch(
      `https://whois.klemek.fr/api/lookup/${domain}`,
    );
    const content: WhoIsResponse = await response.json();
    return checkWhoIsData(content.data);
  } catch {
    return false;
  }
}