first upload all files

Modules/Coupon/Http/Controllers/CartCouponController.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Modules\Coupon\Http\Controllers;
+
+use Modules\Cart\Facades\Cart;
+use Illuminate\Pipeline\Pipeline;
+use Modules\Coupon\Entities\Coupon;
+use Modules\Coupon\Checkers\ValidCoupon;
+use Modules\Coupon\Checkers\CouponExists;
+use Modules\Coupon\Checkers\MaximumSpend;
+use Modules\Coupon\Checkers\MinimumSpend;
+use Modules\Coupon\Checkers\AlreadyApplied;
+use Modules\Coupon\Checkers\ExcludedProducts;
+use Modules\Coupon\Checkers\ApplicableProducts;
+use Modules\Coupon\Checkers\ExcludedCategories;
+use Modules\Coupon\Checkers\UsageLimitPerCoupon;
+use Modules\Coupon\Checkers\ApplicableCategories;
+use Modules\Coupon\Checkers\UsageLimitPerCustomer;
+
+class CartCouponController
+{
+    private $checkers = [
+        CouponExists::class,
+        AlreadyApplied::class,
+        ValidCoupon::class,
+        MinimumSpend::class,
+        MaximumSpend::class,
+        ApplicableProducts::class,
+        ExcludedProducts::class,
+        ApplicableCategories::class,
+        ExcludedCategories::class,
+        UsageLimitPerCoupon::class,
+        UsageLimitPerCustomer::class,
+    ];
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store()
+    {
+        $coupon = Coupon::findByCode(request('coupon'));
+
+        resolve(Pipeline::class)
+            ->send($coupon)
+            ->through($this->checkers)
+            ->then(function ($coupon) {
+                Cart::applyCoupon($coupon);
+            });
+
+        return Cart::instance();
+    }
+
+    /**
+     * Destroy resources by given ids.
+     *
+     * @return void
+     */
+    public function destroy()
+    {
+        Cart::removeCoupon();
+
+        return Cart::instance();
+    }
+}