(function () {
  "use strict";

  var STORAGE_KEY = "mltv_cookie_consent";
  var COOKIE_NAME = "mltv_cookie_consent";
  var COOKIE_MAX_AGE = 365 * 24 * 60 * 60;

  function readConsent() {
    try {
      var raw = localStorage.getItem(STORAGE_KEY);
      if (!raw) return null;
      return JSON.parse(raw);
    } catch (e) {
      return null;
    }
  }

  function writeConsent(consent) {
    var payload = {
      necessary: true,
      analytics: !!consent.analytics,
      ts: Date.now()
    };
    try {
      localStorage.setItem(STORAGE_KEY, JSON.stringify(payload));
    } catch (e) { /* ignore */ }
    var value = payload.analytics ? "all" : "necessary";
    document.cookie =
      COOKIE_NAME + "=" + value +
      "; path=/; max-age=" + COOKIE_MAX_AGE +
      "; SameSite=Lax" +
      (location.protocol === "https:" ? "; Secure" : "");
    return payload;
  }

  function measurementId() {
    return document.body && document.body.getAttribute("data-ga-id");
  }

  function loadGoogleAnalytics() {
    var id = measurementId();
    if (!id || window.__mltvGaLoaded) return;

    window.dataLayer = window.dataLayer || [];
    function gtag() { window.dataLayer.push(arguments); }
    window.gtag = gtag;

    gtag("consent", "default", {
      analytics_storage: "denied",
      ad_storage: "denied",
      ad_user_data: "denied",
      ad_personalization: "denied",
      functionality_storage: "granted",
      security_storage: "granted"
    });

    gtag("consent", "update", { analytics_storage: "granted" });

    var script = document.createElement("script");
    script.async = true;
    script.src = "https://www.googletagmanager.com/gtag/js?id=" + encodeURIComponent(id);
    script.onload = function () {
      gtag("js", new Date());
      gtag("config", id, { anonymize_ip: true, allow_google_signals: false });
    };
    document.head.appendChild(script);
    window.__mltvGaLoaded = true;
  }

  function applyConsent(consent) {
    if (consent && consent.analytics) {
      loadGoogleAnalytics();
    }
  }

  function hideBanner(banner) {
    if (!banner) return;
    banner.hidden = true;
    banner.setAttribute("aria-hidden", "true");
  }

  function showBanner(banner) {
    if (!banner) return;
    banner.hidden = false;
    banner.removeAttribute("aria-hidden");
  }

  function bindBanner(banner) {
    var acceptAll = banner.querySelector("[data-cookie-accept-all]");
    var reject = banner.querySelector("[data-cookie-reject]");

    if (acceptAll) {
      acceptAll.addEventListener("click", function () {
        var c = writeConsent({ analytics: true });
        applyConsent(c);
        hideBanner(banner);
      });
    }

    if (reject) {
      reject.addEventListener("click", function () {
        writeConsent({ analytics: false });
        hideBanner(banner);
      });
    }
  }

  function init() {
    var banner = document.getElementById("cookie-banner");
    var consent = readConsent();

    if (consent) {
      applyConsent(consent);
      hideBanner(banner);
    } else {
      showBanner(banner);
    }

    bindBanner(banner);

    document.querySelectorAll("[data-cookie-manage]").forEach(function (el) {
      el.addEventListener("click", function (e) {
        e.preventDefault();
        showBanner(banner);
      });
    });
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", init);
  } else {
    init();
  }
})();