// Giscus functionality
function loadGiscus() {
  const script = document.createElement("script");
  script.src = "https://giscus.app/client.js";
  script.setAttribute("data-repo", "ultralytics/ultralytics");
  script.setAttribute("data-repo-id", "R_kgDOH-jzvQ");
  script.setAttribute("data-category", "Docs");
  script.setAttribute("data-category-id", "DIC_kwDOH-jzvc4CWLkL");
  script.setAttribute("data-mapping", "pathname");
  script.setAttribute("data-strict", "1");
  script.setAttribute("data-reactions-enabled", "1");
  script.setAttribute("data-emit-metadata", "0");
  script.setAttribute("data-input-position", "top");
  script.setAttribute("data-theme", "preferred_color_scheme");
  script.setAttribute("data-lang", "en");
  script.setAttribute("data-loading", "lazy");
  script.setAttribute("crossorigin", "anonymous");
  script.setAttribute("async", "");

  const giscusContainer = document.getElementById("giscus-container");
  if (giscusContainer) {
    giscusContainer.appendChild(script);

    // Synchronize Giscus theme with palette
    var palette = __md_get("__palette");
    if (palette && typeof palette.color === "object") {
      var theme = palette.color.scheme === "slate" ? "dark" : "light";
      script.setAttribute("data-theme", theme);
    }

    // Register event handlers for theme changes
    var ref = document.querySelector("[data-md-component=palette]");
    if (ref) {
      ref.addEventListener("change", function () {
        var palette = __md_get("__palette");
        if (palette && typeof palette.color === "object") {
          var theme = palette.color.scheme === "slate" ? "dark" : "light";

          // Instruct Giscus to change theme
          var frame = document.querySelector(".giscus-frame");
          if (frame) {
            frame.contentWindow.postMessage(
              { giscus: { setConfig: { theme } } },
              "https://giscus.app",
            );
          }
        }
      });
    }
  }
}

// MkDocs specific: Load Giscus when the page content is fully loaded
document.addEventListener("DOMContentLoaded", function () {
  var observer = new MutationObserver(function (mutations) {
    if (document.getElementById("giscus-container")) {
      loadGiscus();
      observer.disconnect();
    }
  });

  observer.observe(document.body, { childList: true, subtree: true });
});