async function main() {
  try {
    const [ny4, ipsb, speedtestcn, ipapiis] = await Promise.all([
      fetchAsync("https://ip.ny4.dev/api/v1/ip"),
      fetchAsync("https://api.ip.sb/geoip"),
      fetchAsync("https://api-v3.speedtest.cn/ip"),
      fetchAsync("https://api.ipapi.is/"),
    ]);

    updateDom("check-ny4-ip", ny4.ip);
    updateDom("check-ny4-location", [
      ny4.city,
      ny4.region,
      ny4.country,
      ny4.organization,
    ]);

    updateDom("check-ipsb-ip", ipsb.ip);
    updateDom("check-ipsb-location", [
      ipsb.city,
      ipsb.region,
      ipsb.country,
      ipsb.isp,
    ]);

    updateDom("check-speedtestcn-ip", speedtestcn.data.ip);
    updateDom("check-speedtestcn-location", [
      speedtestcn.data.city,
      speedtestcn.data.province,
      speedtestcn.data.country,
      speedtestcn.data.isp,
    ]);

    updateDom("check-ipapiis-ip", ipapiis.ip);
    updateDom("check-ipapiis-location", [
      ipapiis.location.city,
      ipapiis.location.state,
      ipapiis.location.country,
      ipapiis.company.name,
    ]);
  } catch (error) {
    console.log("Error fetching data:", error);
  }
}

async function fetchAsync(url) {
  try {
    const response = await fetch(url);
    if (!response.ok) {
      throw new Error(`HTTP error! Status: ${response.status}`);
    }
    return await response.json();
  } catch (error) {
    console.log("Fetch error:", error);
    throw error;
  }
}

function updateDom(elementId, content) {
  document.getElementById(elementId).innerHTML = Array.isArray(content)
    ? content.join(", ")
    : content;
}

window.onload = main;