Shopify theme.liquid — Shopify.customerPrivacy state -> cart attribute consent snapshot sync

theme-liquid-consent-sync.liquid

{%- comment -%} theme.liquid, customer context bloğunun altına {%- endcomment -%}
<script>
(function () {
  function readConsent() {
    const cp = window.Shopify && window.Shopify.customerPrivacy;
    if (!cp || typeof cp.getVisitorConsent !== 'function') return null;
    const c = cp.getVisitorConsent();
    return {
      _analytics_consent: c.analytics === true ? 'granted' : 'denied',
      _marketing_consent: c.marketing === true ? 'granted' : 'denied',
      _preferences_consent: c.preferences === true ? 'granted' : 'denied',
      _sale_of_data_consent: c.sale_of_data === true ? 'granted' : 'denied'
    };
  }

  async function syncConsentToCart() {
    const desired = readConsent();
    if (!desired) return;

    try {
      const cart = await fetch('/cart.js', { credentials: 'same-origin' }).then(r => r.json());
      const current = cart.attributes || {};
      const diff = Object.keys(desired).some(k => current[k] !== desired[k]);
      if (!diff) return;

      await fetch('/cart/update.js', {
        method: 'POST',
        credentials: 'same-origin',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ attributes: desired })
      });
    } catch (err) {
      // non-critical path
    }
  }

  document.addEventListener('DOMContentLoaded', syncConsentToCart);
  document.addEventListener('visitorConsentCollected', syncConsentToCart);
})();
</script>