[Typescript] Add promotion to basket

typescript/src/world-company-remuneration/basket-informations.ts

@@ -9,20 +9,32 @@ export class BasketInformations {
     // The product of the basket
     static map: Map<string, number> = new Map<string, number>()
 
-    addProductToBasket(product: string, price: number) {
-        BasketInformations.map.set(product, price)
+    // The fact that the basket has promo code
+    static codeDePromotion: boolean = false
+
+
+    addProductToBasket(product: string, price: number, promoCode: boolean = false) {
+        if (promoCode) {
+            BasketInformations.codeDePromotion = true
+        } else {
+            BasketInformations.map.set(product, price)
+        }
     }
 
     getBasketPrice(inCents: boolean): Number {
         var v = 0;
         for (let s of Array.from(BasketInformations.map.values())) {
             v += s;
         }
+        if (BasketInformations.codeDePromotion) {
+            v -= 100;
+        }
         return inCents ? new Number(v * 100) : Number(v)
     }
 
     resetBasket() {
         this.buyBasket();
+        BasketInformations.codeDePromotion = false;
     }
 
     buyBasket() {

typescript/test/world-company-remuneration/basket-informations.test.ts

@@ -9,7 +9,7 @@ describe("a basket should cost", () => {
     test("1000 otherwise", () => {
         let basketInformations = new BasketInformations();
         basketInformations.resetBasket()
-        basketInformations.addProductToBasket("Toto", 1000)
+        basketInformations.addProductToBasket("Toto", 1000) // Promo = false
         expect(basketInformations.getBasketPrice(false)).toBe(1000);
     });