(function () {
  "use strict";

  const ALLOWED_HOSTNAME = "bookly.codyborders.com";
  const DATADOG_AGENT_URL =
    "https://www.datadoghq-browser-agent.com/us1/v6/datadog-rum.js";
  const RUM_CONFIG = Object.freeze({
    applicationId: "ad60336f-85fe-4631-9469-973180243552",
    clientToken: "pube161402da279b685acbb640a4366129b",
    site: "datadoghq.com",
    service: "csb",
    env: "prod",
    version: "0.1",
    sessionSampleRate: 100,
    sessionReplaySampleRate: 100,
    trackResources: true,
    trackUserInteractions: true,
    trackLongTasks: true,
    defaultPrivacyLevel: "allow",
  });

  function initializeRum(win) {
    if (win.__booklyRumStarted === true) {
      return;
    }

    if (!win.DD_RUM) {
      console.error("Datadog RUM agent was not available after loading.");
      return;
    }

    win.DD_RUM.init(RUM_CONFIG);
    win.__booklyRumStarted = true;
    win.__booklyRumLoading = false;
  }

  function loadRumAgent(doc, win) {
    const headEl = doc.head;
    if (!headEl) {
      console.error("Datadog RUM was not loaded because document.head is missing.");
      return;
    }

    const scriptEl = doc.createElement("script");
    scriptEl.src = DATADOG_AGENT_URL;
    scriptEl.async = true;
    scriptEl.addEventListener("load", function () {
      initializeRum(win);
    });
    scriptEl.addEventListener("error", function () {
      win.__booklyRumLoading = false;
      console.error("Datadog RUM agent failed to load.");
    });

    win.__booklyRumLoading = true;
    headEl.appendChild(scriptEl);
  }

  if (window.location.hostname !== ALLOWED_HOSTNAME) {
    return;
  }

  if (window.__booklyRumStarted === true) {
    return;
  }

  if (window.__booklyRumLoading === true) {
    return;
  }

  if (window.DD_RUM) {
    initializeRum(window);
    return;
  }

  loadRumAgent(document, window);
})();