const { spawn } = require("child_process");

module.exports = async function getISP(ip_address) {
  return new Promise((resolve, reject) => {
    const task = spawn("whois", [ip_address]);
    let data = "";
    task.stdout.on("data", (d) => {
      data += d.toString();
    });
    task.on("close", () => {
      resolve(
        data
          .split("\n")
          .filter((l) => l.includes("role:"))
          .join("|")
      );
    });
    task.on("error", () => reject());
  });
};