From 424b41822a700fcdddf58d4a113b228c7c5608b4 Mon Sep 17 00:00:00 2001
From: Mariano Goldman <mariano.goldman@puntodev.com.ar>
Date: Wed, 27 Nov 2024 21:09:29 -0300
Subject: [PATCH] Allow sending discounts

---
 src/OrderBuilder.php       | 25 ++++++++++++++--
 tests/OrderBuilderTest.php | 59 ++++++++++++++++++++++++++++++++++++++
 tests/PayPalApiTest.php    | 14 ++++-----
 3 files changed, 89 insertions(+), 9 deletions(-)

diff --git a/src/OrderBuilder.php b/src/OrderBuilder.php
index 119c8e0..9af35e8 100644
--- a/src/OrderBuilder.php
+++ b/src/OrderBuilder.php
@@ -9,6 +9,7 @@ class OrderBuilder
     private string $externalId = '';
     private string $currency = '';
     private float $amount = 0;
+    private float $discount = 0;
     private string $description = '';
     private string $brandName = '';
     private string $locale = 'es-AR';
@@ -48,6 +49,12 @@ public function amount(float $amount): OrderBuilder
         return $this;
     }
 
+    public function discount(float $discount): OrderBuilder
+    {
+        $this->discount = $discount;
+        return $this;
+    }
+
     /**
      * @param string $description
      * @return OrderBuilder
@@ -100,14 +107,20 @@ public function cancelUrl(string $cancelUrl): OrderBuilder
 
     public function make(): array
     {
-        return [
+        $arr = [
             'intent' => 'CAPTURE',
             'purchase_units' => [
                 [
                     'custom_id' => $this->externalId,
                     'amount' => [
                         'currency_code' => $this->currency,
-                        'value' => round($this->amount, 2),
+                        'value' => round($this->amount - $this->discount, 2),
+                        'breakdown' => [
+                            'item_total' => [
+                                'currency_code' => $this->currency,
+                                'value' => round($this->amount, 2),
+                            ],
+                        ],
                     ],
                     'description' => $this->description,
                     'payment_options' => [
@@ -127,5 +140,13 @@ public function make(): array
                 'cancel_url' => $this->cancelUrl
             ],
         ];
+
+        if ($this->discount > 0) {
+            $arr['purchase_units'][0]['amount']['breakdown']['discount'] = [
+                'currency_code' => $this->currency,
+                'value' => round($this->discount, 2),
+            ];
+        }
+        return $arr;
     }
 }
diff --git a/tests/OrderBuilderTest.php b/tests/OrderBuilderTest.php
index cea6f00..c08fc23 100644
--- a/tests/OrderBuilderTest.php
+++ b/tests/OrderBuilderTest.php
@@ -29,6 +29,65 @@ public function create_order_with_int_amount()
                     'amount' => [
                         'currency_code' => 'USD',
                         'value' => 23.21,
+                        'breakdown' => [
+                            'item_total' => [
+                                'currency_code' => 'USD',
+                                'value' => 23.21,
+                            ],
+                        ]
+                    ],
+                    'description' => 'My custom product',
+                    'payment_options' => [
+                        'allowed_payment_method' => 'INSTANT_FUNDING_SOURCE'
+                    ],
+                ]
+            ],
+            'application_context' => [
+                'brand_name' => 'My brand name',
+                'locale' => 'es-AR',
+                'user_action' => 'PAY_NOW',
+                'payment_method' => [
+                    'payee_preferred' => 'IMMEDIATE_PAYMENT_REQUIRED',
+                ],
+                'shipping_preference' => 'NO_SHIPPING',
+                'return_url' => 'http://localhost:8080/return',
+                'cancel_url' => 'http://localhost:8080/cancel'
+            ],
+        ], $order);
+    }
+
+    #[Test]
+    public function create_order_with_discount()
+    {
+        $order = (new OrderBuilder())
+            ->externalId('31fe5538-8589-437d-8823-3b0574186a5f')
+            ->currency('USD')
+            ->amount(23.99)
+            ->discount(3.98)
+            ->description('My custom product')
+            ->brandName('My brand name')
+            ->returnUrl('http://localhost:8080/return')
+            ->cancelUrl('http://localhost:8080/cancel')
+            ->make();
+
+        $this->assertEquals([
+            'intent' => 'CAPTURE',
+            'purchase_units' => [
+                [
+                    'custom_id' => '31fe5538-8589-437d-8823-3b0574186a5f',
+                    'amount' => [
+                        'currency_code' => 'USD',
+                        'value' => 20.01,
+                        'breakdown' => [
+                            'item_total' => [
+                                'currency_code' => 'USD',
+                                'value' => 23.99,
+                            ],
+                            'discount' => [
+                                'currency_code' => 'USD',
+                                'value' => 3.98,
+                            ],
+                        ]
                     ],
                     'description' => 'My custom product',
                     'payment_options' => [
diff --git a/tests/PayPalApiTest.php b/tests/PayPalApiTest.php
index f1c2fa7..69fa575 100644
--- a/tests/PayPalApiTest.php
+++ b/tests/PayPalApiTest.php
@@ -26,12 +26,12 @@ public function setUp(): void
         );
     }
 
-    protected function getEnvironmentSetUp($app)
-    {
-        $app['config']->set('paypal.client_id', env('PAYPAL_API_CLIENT_ID'));
-        $app['config']->set('paypal.client_secret', env('PAYPAL_API_CLIENT_SECRET'));
-        $app['config']->set('paypal.use_sandbox', env('SANDBOX_GATEWAYS'));
-    }
+//    protected function getEnvironmentSetUp($app)
+//    {
+//        $app['config']->set('paypal.client_id', env('PAYPAL_API_CLIENT_ID'));
+//        $app['config']->set('paypal.client_secret', env('PAYPAL_API_CLIENT_SECRET'));
+//        $app['config']->set('paypal.use_sandbox', env('SANDBOX_GATEWAYS'));
+//    }
 
     #[Test]
     public function verify_ipn()
@@ -50,6 +50,7 @@ public function create_order()
             ->externalId($this->faker->uuid)
             ->currency('USD')
             ->amount(23.20)
+            ->discount(2.19999)
             ->description('My custom product')
             ->brandName('My brand name')
             ->returnUrl('http://localhost:8080/return')
@@ -69,7 +70,6 @@ public function create_order()
         $this->assertStringStartsWith('https://www.sandbox.paypal.com/checkoutnow', $link['href']);
     }
 
-
     /**
      * @return void
      * @throws Exception