(async () => {
  const base = 'https://xnbpklxsihmimfcvyoqp.supabase.co/rest/v1';
  const key = 'sb_publishable_BEkV8W7J37srrg1oTF9TgA_94vBAQBW';
  const headers = { apikey: key, Authorization: `Bearer ${key}` };
  const get = table => fetch(`${base}/${table}?select=*`, { headers }).then(r => {
    if (!r.ok) throw new Error(`${table}: ${r.status}`);
    return r.json();
  });
  if (sessionStorage.getItem('supabase-sync-done') === '1') return;
  if (sessionStorage.getItem('supabase-sync-running') === '1') return;
  sessionStorage.setItem('supabase-sync-running', '1');
  try {
    const [products, categories, settingsRows, vitrineRows] = await Promise.all([
      get('products'), get('categories'), get('store_settings'), get('store_vitrine')
    ]);
    const settings = settingsRows[0] || {};
    const remote = {
      products: products.map(p => ({ ...p, images: p.images || [], colors: p.colors || [] })),
      categories: categories.map(c => ({ name: c.name, active: c.active })),
      vitrine: (vitrineRows[0] && vitrineRows[0].product_ids) || [],
      settings: {
        name: settings.name || '', phone: settings.phone || '', email: settings.email || '',
        instagram: settings.instagram || '', location: settings.location || '', hours: settings.hours || '',
        heroTitle: settings.hero_title || '', heroText: settings.hero_text || '', about: settings.about || '',
        message: settings.message || '', aboutImage: settings.about_image || ''
      }
    };
    localStorage.setItem('lar-modelo-v1', JSON.stringify(remote));
    sessionStorage.removeItem('supabase-sync-running');
    sessionStorage.setItem('supabase-sync-done', '1');
    if (location.search.includes('supabase=1')) {
      history.replaceState(null, '', location.pathname + location.hash);
      location.reload();
    }
  } catch (error) {
    console.warn('Supabase indisponível; usando cache local.', error);
    sessionStorage.removeItem('supabase-sync-running');
  }
})();