/**
 * Cookie Consent Handler
 *
 * Handles cookie consent acceptance for GDPR compliance.
 * Sets a cookie that expires in 1 year when the user accepts.
 */

// Track if click listener has been added to prevent duplicates
let clickListenerAdded = false;

export function initCookieConsent() {
  // Check if consent cookie already exists
  if (hasConsentCookie()) {
    hideBanner();
  }

  // Only add click listener once (on initial page load)
  if (!clickListenerAdded) {
    document.addEventListener('click', (event) => {
      if (event.target.matches('[data-cookie-consent="accept"]') ||
          event.target.closest('[data-cookie-consent="accept"]')) {
        acceptCookies();
      }
    });
    clickListenerAdded = true;
  }
}

function hasConsentCookie() {
  return document.cookie.split('; ').some(cookie => cookie.startsWith('cookie_consent=accepted'));
}

function hideBanner() {
  const banner = document.getElementById('cookie-consent-banner');
  if (banner) {
    banner.style.display = 'none';
  }
}

function acceptCookies() {
  // Set cookie that expires in 1 year
  const expiryDate = new Date();
  expiryDate.setFullYear(expiryDate.getFullYear() + 1);

  // Only add Secure flag in production (requires HTTPS)
  const isProduction = window.location.protocol === 'https:';
  const secureFlag = isProduction ? '; Secure' : '';

  document.cookie = `cookie_consent=accepted; expires=${expiryDate.toUTCString()}; path=/; SameSite=Lax${secureFlag}`;

  // Hide the banner with animation
  const banner = document.getElementById('cookie-consent-banner');
  if (banner) {
    banner.classList.add('opacity-0', 'translate-y-4');
    setTimeout(() => {
      banner.remove();
    }, 200);
  }
}