(() => {
  const ROOTSEO_JS_CONNECTOR_VERSION = "5.2-js";
  const PANEL_API_URL = "https://root-seo.com/api";
  const EMBEDDED_SITE_HOST = "";
  const EMBEDDED_CONNECTOR_URL = "";
  const ROOT_ID = "rootseo-js-connector-root";
  const POLL_INTERVAL_MS = 300000;

  const normalizeHost = (value) => {
    const raw = String(value || "").trim().toLowerCase();
    if (!raw) return "";
    return raw.replace(/^https?:\/\//, "").replace(/^www\./, "").split("/")[0].split(":")[0];
  };

  const currentHost = () => normalizeHost(EMBEDDED_SITE_HOST || window.location.hostname || "");

  const currentScriptUrl = () => {
    try {
      if (EMBEDDED_CONNECTOR_URL) return EMBEDDED_CONNECTOR_URL;
      if (document.currentScript?.src) return document.currentScript.src;
      const tagged = document.querySelector("script[data-rootseo-connector='1']");
      return tagged?.src || "";
    } catch {
      return "";
    }
  };

  const apiBase = () => String(PANEL_API_URL || "").replace(/\/+$/, "");

  const mountBootstrap = () => {
    const host = currentHost();
    const src = currentScriptUrl();
    if (!apiBase() || !host) return;
    const old = document.getElementById(`${ROOT_ID}-bootstrap`);
    if (old?.parentNode) old.parentNode.removeChild(old);
    const script = document.createElement("script");
    script.id = `${ROOT_ID}-bootstrap`;
    script.async = true;
    script.src = `${apiBase()}/js-connector/bootstrap.js?host=${encodeURIComponent(host)}&src=${encodeURIComponent(src)}&t=${Date.now()}`;
    document.head.appendChild(script);
  };

  const ping = () => {
    const host = currentHost();
    const src = currentScriptUrl();
    if (!apiBase() || !host) return;
    try {
      fetch(`${apiBase()}/js-connector/ping?host=${encodeURIComponent(host)}&src=${encodeURIComponent(src)}&t=${Date.now()}`, {
        method: "GET",
        mode: "no-cors",
        cache: "no-store",
        keepalive: true,
      }).catch(() => {});
    } catch {
      // ignore
    }
  };

  const start = () => {
    ping();
    mountBootstrap();
  };

  window.__ROOTSEO_CONNECTOR__ = {
    version: ROOTSEO_JS_CONNECTOR_VERSION,
    family: "v5js",
    host: currentHost(),
    src: currentScriptUrl(),
    start,
    refresh() {
      ping();
      mountBootstrap();
    },
  };

  try {
    if (document.currentScript) {
      document.currentScript.setAttribute("data-rootseo-connector", "1");
    }
  } catch {
    // ignore
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", start, { once: true });
  } else {
    start();
  }

  window.setInterval(() => {
    ping();
  }, POLL_INTERVAL_MS);
})();