/* =========================================================================
   cookie-consent.js — GDPR-style consent manager.
   Non-essential scripts must be added to the page as:
     <script type="text/plain" data-cookiecategory="analytics"> ... </script>
   They stay inert until the visitor grants that category, at which point this
   module reactivates them. Consent is stored in localStorage.
   ========================================================================= */
(function () {
  "use strict";

  var STORAGE_KEY = "cookieConsent";
  var CATEGORIES = ["necessary", "analytics", "marketing"];

  function readConsent() {
    try {
      return JSON.parse(localStorage.getItem(STORAGE_KEY) || "null");
    } catch (e) {
      return null;
    }
  }

  function writeConsent(consent) {
    consent.necessary = true; // always on
    consent.ts = Date.now();
    try {
      localStorage.setItem(STORAGE_KEY, JSON.stringify(consent));
    } catch (e) {
      /* ignore */
    }
    activateScripts(consent);
  }

  function activateScripts(consent) {
    var nodes = document.querySelectorAll(
      'script[type="text/plain"][data-cookiecategory]'
    );
    Array.prototype.forEach.call(nodes, function (node) {
      if (node.getAttribute("data-cookie-activated") === "1") return;
      var cat = node.getAttribute("data-cookiecategory");
      if (!consent[cat]) return;

      var s = document.createElement("script");
      for (var i = 0; i < node.attributes.length; i++) {
        var attr = node.attributes[i];
        if (attr.name === "type" || attr.name === "data-cookiecategory") continue;
        s.setAttribute(attr.name, attr.value);
      }
      s.type = "text/javascript";
      if (!node.src) {
        s.text = node.textContent;
      }
      node.parentNode.insertBefore(s, node.nextSibling);
      node.setAttribute("data-cookie-activated", "1");
    });
  }

  function banner() {
    return document.getElementById("cookie-consent");
  }

  function showBanner() {
    var b = banner();
    if (b) b.hidden = false;
  }

  function hideBanner() {
    var b = banner();
    if (b) b.hidden = true;
  }

  function acceptAll() {
    var consent = { necessary: true };
    CATEGORIES.forEach(function (c) {
      consent[c] = true;
    });
    writeConsent(consent);
    hideBanner();
  }

  function rejectNonEssential() {
    var consent = { necessary: true, analytics: false, marketing: false };
    writeConsent(consent);
    hideBanner();
  }

  function savePreferences() {
    var b = banner();
    var consent = { necessary: true };
    CATEGORIES.forEach(function (c) {
      if (c === "necessary") return;
      var box = b
        ? b.querySelector('[data-cc-category="' + c + '"]')
        : null;
      consent[c] = !!(box && box.checked);
    });
    writeConsent(consent);
    hideBanner();
  }

  function toggleManage() {
    var b = banner();
    if (!b) return;
    var panel = b.querySelector("[data-cc-panel]");
    if (panel) panel.hidden = !panel.hidden;
  }

  function init() {
    var b = banner();
    var existing = readConsent();

    if (existing) {
      activateScripts(existing);
      if (b) b.hidden = true;
    } else if (b) {
      b.hidden = false;
    }

    if (!b) return;

    var accept = b.querySelector("[data-cc-accept-all]");
    if (accept) accept.addEventListener("click", acceptAll);

    var reject = b.querySelector("[data-cc-reject]");
    if (reject) reject.addEventListener("click", rejectNonEssential);

    var save = b.querySelector("[data-cc-save]");
    if (save) save.addEventListener("click", savePreferences);

    var manage = b.querySelector("[data-cc-manage]");
    if (manage) manage.addEventListener("click", toggleManage);
  }

  // Public: reopen the consent banner (used by footer / cookie-policy links).
  window.openCookieSettings = function () {
    var existing = readConsent();
    var b = banner();
    if (b && existing) {
      CATEGORIES.forEach(function (c) {
        if (c === "necessary") return;
        var box = b.querySelector('[data-cc-category="' + c + '"]');
        if (box) box.checked = !!existing[c];
      });
      var panel = b.querySelector("[data-cc-panel]");
      if (panel) panel.hidden = false;
    }
    showBanner();
  };

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