Discounts usage added.

app/Services/Cart/CartCalculationData.php

@@ -24,10 +24,11 @@ public function getDiscounts(){
         return $this->discounts;
     }
 
-    public function setDiscount($discountName, $discountValue){
+    public function setDiscount($discountName, $discountValue, $discountType){
         $this->discounts[] = [
             'name' => $discountName,
             'discount' => $discountValue,
+            'type' => $discountType
         ];
     }
 

app/Services/Cart/CartService.php

@@ -2,6 +2,7 @@
 
 namespace App\Services\Cart;
 
+use App\Services\Cart\Cost\NewYearCost;
 use App\Services\Cart\Cost\PromoCodeCost;
 use App\Services\Cart\Cost\SimpleCost;
 use App\Services\Cart\Interfaces\CartServiceInterface;
@@ -12,6 +13,6 @@ class CartService implements CartServiceInterface
     public Cart $cart;
 
     public function __construct(){
-        $this->cart = new Cart((new CartSessionStorageService), (new PromoCodeCost(new SimpleCost(), new CouponSessionStorage())));
+        $this->cart = new Cart((new CartSessionStorageService), (new NewYearCost(new PromoCodeCost(new SimpleCost(), new CouponSessionStorage()))));
     }
 }

app/Services/Cart/Cost/NewYearCost.php

+<?php
+
+namespace App\Services\Cart\Cost;
+
+use App\Services\Cart\Cost\Interfaces\CartCostCalculator;
+use App\Services\Coupon\Interface\CouponStorageInterface;
+
+class NewYearCost implements CartCostCalculator
+{
+    public function __construct(CartCostCalculator $calculator){
+        $this->next = $calculator;
+    }
+
+    public function getCost(array $items){
+        $cartData = $this->next->getCost($items);
+        if(date('m') == 9){
+            $newYearDiscount = $cartData->getSubTotal() * 0.05;
+            $cartData->setTotal($cartData->getTotal() - $newYearDiscount);
+            $cartData->setDiscount('Happy New Year! 5% off on all products <3.', $newYearDiscount, 'value');
+        }
+        return $cartData;
+    }
+}

app/Services/Cart/Cost/PromoCodeCost.php

@@ -17,7 +17,7 @@ public function getCost(array $items){
         if($cartCoupon !== null){
             $couponDiscount = $cartCoupon->calculateCoupon($cartData->getSubTotal());
             $cartData->setTotal($cartData->getTotal() - $couponDiscount);
-            $cartData->setDiscount($cartCoupon->getCouponName(), $couponDiscount);
+            $cartData->setDiscount($cartCoupon->getCouponName(), $couponDiscount, 'coupon');
         }
         return $cartData;
     }

resources/views/shop/cart.blade.php

@@ -126,11 +126,13 @@
                                     <li class="d-flex flex-row align-items-center justify-content-start">
                                         <div class="cart_total_title">
                                             <span>{{$discount['name']}}</span>
-                                            <form action="{{ route('shop.cart.coupon.removeCoupon') }}" method="POST" style="display: inline">
-                                                @csrf
-                                                @method('DELETE')
-                                                <button type="submit">Remove</button>
-                                            </form>
+                                            @if($discount['type'] === 'coupon')
+                                                <form action="{{ route('shop.cart.coupon.removeCoupon') }}" method="POST" style="display: inline">
+                                                    @csrf
+                                                    @method('DELETE')
+                                                    <button type="submit">Remove</button>
+                                                </form>
+                                            @endif
                                         </div>
                                         <div class="cart_total_value ml-auto">-{{$discount['discount']}}</div>
                                     </li>