0 is out of stock and nothing is available from now on

src/views/shop.rs

@@ -34,6 +34,8 @@ pub fn product_card(
         "currency": product.currency,
         "sku": representative.sku,
         "stock": representative.stock,
+        "tracked": representative.tracked(),
+        "in_stock": representative.in_stock(),
         "variant_count": variant_count,
         "has_options": variant_count > 1,
         "published": product.published,
@@ -49,7 +51,8 @@ pub fn variant_option(variant: &product_variants::Model, priced: &PricedProduct)
         "label": variant.label,
         "sku": variant.sku,
         "stock": variant.stock,
-        "in_stock": variant.stock > 0,
+        "tracked": variant.tracked(),
+        "in_stock": variant.in_stock(),
         "price": format_price(priced.price_cents),
         "on_sale": priced.is_reduced(),
         "regular_price": format_price(priced.regular_cents),