/* Add custom JS code below */ 
/* 21 Days IELTS — home and logo navigation, v3.
 * Replace the older 21 Days IELTS navigation block with this code in
 * Salla's custom JavaScript field. Do not include <script> tags.
 * Run on the published 21daysielts.com storefront only.
 */
(function () {
  'use strict';

  var MARKETING_HOME = 'https://21daysielts.com/';
 var STORE_HOSTS = ['shop.21daysielts.com'];
  var current = new URL(window.location.href);

  function isStoreHost(url) {
    return STORE_HOSTS.indexOf(url.hostname.toLowerCase()) !== -1 &&
      (url.protocol === 'https:' || url.protocol === 'http:') && !url.port;
  }

  function isEmbedded() {
    try { return window.top !== window.self; } catch (_) { return true; }
  }

  function isPreview(url) {
    var preview = false;
    url.searchParams.forEach(function (_, key) {
      if (/^(identifier|version_id|draft|draft_id|theme_id|preview|preview_id|is_preview|assets_url|with_editor|editor|signature|access_token|ws_port)$/i.test(key)) {
        preview = true;
      }
    });
    return preview || /\/(preview|editor)(\/|$)/i.test(url.pathname);
  }

  function isProtectedRoute(url) {
    return /^\/(?:ar\/|en\/)?(?:auth|login|logout|register|signup|account|customer|customers|cart|checkout|order|orders|payment|payments|oauth|callback|thank-you|thankyou)(\/|$)/i.test(url.pathname);
  }

  // Preview/editor and purchase/account flows must stay inside Salla.
  if (!isStoreHost(current) || isEmbedded() || isPreview(current) || isProtectedRoute(current)) return;
  if (window.__ielts21NavigationV3) return;
  window.__ielts21NavigationV3 = true;

  function isTrackingKey(key) {
    return /^utm_[a-z0-9_]+$/i.test(key) ||
      /^(gclid|dclid|fbclid|msclkid|ttclid|twclid|srsltid|gbraid|wbraid|_gl|mc_cid|mc_eid)$/i.test(key);
  }

  function hasOnlyTrackingParameters(url) {
    var safe = true;
    url.searchParams.forEach(function (_, key) {
      if (!isTrackingKey(key)) safe = false;
    });
    return safe;
  }

  function isPlainHome(url) {
    return isStoreHost(url) && url.pathname === '/' && !url.hash &&
      hasOnlyTrackingParameters(url);
  }

  function marketingUrl(source) {
    var destination = new URL(MARKETING_HOME);
    source.searchParams.forEach(function (value, key) {
      // Never carry session, customer, payment or sign-in parameters across.
      if (isTrackingKey(key)) destination.searchParams.append(key, value);
    });
    return destination.href;
  }

  if (isPlainHome(current)) {
    // replace avoids a Back-button loop between the store and marketing home.
    window.location.replace(marketingUrl(current));
    return;
  }

  var homeLinkSelectors = [
    'a[data-testid="store-header-logo"][href]',
    '.store-header a.navbar-brand[href]',
    '.store-header a[href]',
    '[data-testid="store-header"] a[href]',
    'custom-main-menu a[href]',
    '#mobile-menu a[href]',
    '.breadcrumbs a[href]',
    '.breadcrumb a[href]',
    'salla-breadcrumb a[href]'
  ].join(',');

  function updateHomeLinks() {
    document.querySelectorAll(homeLinkSelectors).forEach(function (link) {
      var href = link.getAttribute('href');
      if (!href || /^\s*#/.test(href)) return;
      try {
        var destination = new URL(href, current.href);
        if (!isPlainHome(destination)) return;
        var nextHref = marketingUrl(destination);
        if (href !== nextHref) link.setAttribute('href', nextHref);
      } catch (_) { /* Preserve non-URL links. */ }
    });
  }

  var pendingUpdate = null;
  function scheduleUpdate() {
    if (pendingUpdate !== null) return;
    pendingUpdate = window.setTimeout(function () {
      pendingUpdate = null;
      updateHomeLinks();
    }, 80);
  }

  function start() {
    updateHomeLinks();
    if (!document.body) return;
    // Keep working when Salla rebuilds the header after a logo/menu update.
    // Observe only new nodes and href changes; no click interception.
    var observer = new MutationObserver(scheduleUpdate);
    observer.observe(document.body, {
      childList: true,
      subtree: true,
      attributes: true,
      attributeFilter: ['href']
    });
    window.addEventListener('pageshow', scheduleUpdate);
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', start, { once: true });
  } else {
    start();
  }
})();
/* Append to the existing Salla JavaScript field. */
;(function () {
  'use strict';
  if (window.__ielts21TopbarFixV5) return;
  window.__ielts21TopbarFixV5 = true;

  function hideTopBar() {
    document.querySelectorAll('.store-header > .top-navbar').forEach(function (bar) {
      bar.style.setProperty('display', 'none', 'important');
    });
  }

  function start() {
    hideTopBar();
    new MutationObserver(hideTopBar).observe(document.body, {
      childList: true,
      subtree: true
    });
  }

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