Merge pull request #79 from atlp-rwanda/fix-discount-payment

[FIX]: Implemented discount while adding to cart

Author: leandreAlly

src/__test__/cart.test.ts

@@ -395,4 +395,23 @@ describe("CART API TEST", () => {
 			"Cannot delete the product because it is linked to other records.",
 		);
 	});
+
+	it("should return 500 when adding to cart", async () => {
+		await database_models.Product.update(
+			{ isAvailable },
+			{ where: { id: product_id } },
+		);
+
+		jest
+			.spyOn(cartService, "findCartByUserIdService")
+			.mockImplementationOnce(() => {
+				throw new Error("Internal server error");
+			});
+
+		const { body } = await Jest_request.post(`/api/v1/carts/`)
+			.set("Authorization", `Bearer ${token}`)
+			.send({ productId: product_id, quantity: 10 });
+		expect(body.status).toStrictEqual("ERROR");
+		expect(body.message).toStrictEqual("Internal Server error");
+	});
 });

src/__test__/sales.test.ts

@@ -381,6 +381,17 @@ describe("SALE API TEST", () => {
 		expect(body.message).toStrictEqual("Sale not found");
 	});
 
+	it(" should return 404 when find a single sale", async () => {
+		const { body } = await Jest_request.get(
+			"/api/v1/sales/9e555bd6-0f36-454a-a3d5-89edef4ff9d1",
+		)
+			.set("Authorization", `Bearer ${seller_token}`)
+			.expect(404);
+
+		expect(body.status).toStrictEqual("NOT FOUND");
+		expect(body.message).toStrictEqual("Sale not found");
+	});
+
 	it("should return error when status value is neither cancelled, delivered nor pending", async () => {
 		const { body } = await Jest_request.patch(`/api/v1/sales/${sale_id}/status`)
 			.set("Authorization", `Bearer ${seller_token}`)

src/controllers/cartController.ts

@@ -24,12 +24,14 @@ const addItemToCart = async (req: ExpandedRequest, res: Response) => {
 			condition,
 		);
 
-		const newprice = product!.price * quantity;
+		const newprice =
+			(product!.price - (product?.price * product?.discount) / 100) * quantity;
 
 		const item = {
 			id: product!.id,
 			name: product!.name,
 			image: product!.images[0],
+			discount: product?.discount,
 			quantity: quantity,
 			price: product!.price,
 			totalPrice: newprice,

src/controllers/orderController.ts

@@ -16,7 +16,7 @@ const include = [
 			{
 				model: Product,
 				as: "soldProducts",
-				attributes: ["name", "images", "price"],
+				attributes: ["name", "images", "price", "discount"],
 			},
 		],
 	},

src/mock/static.ts

@@ -189,7 +189,7 @@ export const new_product = {
 	name: "BMW",
 	price: 49900,
 	images: [image_one_path, image_two_path, image_three_path, image_four_path],
-	discount: 100,
+	discount: 10,
 	quantity: 356,
 	expiryDate: "2324-04-30T00:00:00.000Z",
 };

src/services/payment.services.ts

@@ -60,7 +60,9 @@ export const lineCartItems = (cart: cartModelAttributes) => {
 					name: product.name,
 					images: [product.image],
 				},
-				unit_amount: Math.floor(product.price),
+				unit_amount: Math.floor(
+					product.price - (product.price * product.discount) / 100,
+				),
 			},
 			quantity: product.quantity,
 		};
@@ -125,7 +127,7 @@ export const orderItems = async (cart: cartModelAttributes) => {
 					{
 						model: Product,
 						as: "soldProducts",
-						attributes: ["name", "price", "images", "isAvailable"],
+						attributes: ["name", "price", "images", "isAvailable", "discount"],
 					},
 				],
 			},

src/types/cart.ts

@@ -2,6 +2,7 @@ export type cartItem = {
 	id: string;
 	name: string;
 	image: string;
+	discount: number;
 	quantity: number;
 	price: number;
 	totalPrice: number;