Finalisation du panier

src/cart/CartActions.ts

@@ -9,7 +9,7 @@ export function addToCart(cart: Product[], dispatch: Dispatch<ActionType>, produ
 
     if (existingProduct) {
         existingProduct.quantity = existingProduct.quantity ? existingProduct.quantity + 1 : 1;
-        existingProduct.stockPrice = existingProduct.stockPrice ? existingProduct.stockPrice + existingProduct.price : existingProduct.price;
+        existingProduct.stockPrice = existingProduct.price * existingProduct.quantity;
         return setCart(newCart, dispatch);
     }
 
@@ -24,11 +24,12 @@ export function removeFromCart(cart: Product[], dispatch: Dispatch<ActionType>,
     const existingProduct = newCart.find(p => p.name === product.name);
     if (existingProduct) {
         existingProduct.quantity = existingProduct.quantity ? existingProduct.quantity - 1 : 0;
-        existingProduct.stockPrice = existingProduct.stockPrice ? existingProduct.stockPrice - existingProduct.price : existingProduct.price;
+        existingProduct.stockPrice = existingProduct.price * existingProduct.quantity;
         // If quantity is 0, remove product from cart
         if (existingProduct.quantity === 0) {
             return setCart(newCart.filter(p => p.name !== product.name), dispatch);
         }
+        return setCart(newCart, dispatch);
     }
 
     return setCart(cart, dispatch);
@@ -41,6 +42,12 @@ export function updateProductQuantity(cart: Product[], dispatch: Dispatch<Action
     const existingProduct = newCart.find(p => p.name === product.name);
     if (existingProduct) {
         existingProduct.quantity = quantity;
+        existingProduct.stockPrice = existingProduct.price * quantity;
+
+        if (existingProduct.quantity === 0) {
+            return setCart(newCart.filter(p => p.name !== product.name), dispatch);
+        }
+        return setCart(newCart, dispatch);
     }
 
     return setCart(newCart, dispatch);