From def3e0b6b2b2b9297027dd05072668733f4b9645 Mon Sep 17 00:00:00 2001
From: Adam Wathan <adam.wathan@gmail.com>
Date: Fri, 26 Jan 2018 13:40:58 -0500
Subject: [PATCH] 165 - Splitting Payments with Stripe

---
 app/Billing/StripePaymentGateway.php           |  7 ++++++-
 .../Billing/PaymentGatewayContractTests.php    | 16 ++++++++--------
 .../Unit/Billing/StripePaymentGatewayTest.php  | 18 ++++++++++++++++++
 3 files changed, 32 insertions(+), 9 deletions(-)

diff --git a/app/Billing/StripePaymentGateway.php b/app/Billing/StripePaymentGateway.php
index 317c9d2..179c1f8 100644
--- a/app/Billing/StripePaymentGateway.php
+++ b/app/Billing/StripePaymentGateway.php
@@ -15,18 +15,23 @@ class StripePaymentGateway implements PaymentGateway
         $this->apiKey = $apiKey;
     }
 
-    public function charge($amount, $token)
+    public function charge($amount, $token, $destinationAccountId)
     {
         try {
             $stripeCharge = \Stripe\Charge::create([
                 'amount' => $amount,
                 'source' => $token,
                 'currency' => 'usd',
+                'destination' => [
+                    'account' => $destinationAccountId,
+                    'amount' => $amount * .9,
+                ]
             ], ['api_key' => $this->apiKey]);
 
             return new Charge([
                 'amount' => $stripeCharge['amount'],
                 'card_last_four' => $stripeCharge['source']['last4'],
+                'destination' => $destinationAccountId,
             ]);
         } catch (InvalidRequest $e) {
             throw new PaymentFailedException;
diff --git a/tests/Unit/Billing/PaymentGatewayContractTests.php b/tests/Unit/Billing/PaymentGatewayContractTests.php
index 667a2cc..5068e5c 100644
--- a/tests/Unit/Billing/PaymentGatewayContractTests.php
+++ b/tests/Unit/Billing/PaymentGatewayContractTests.php
@@ -14,7 +14,7 @@ trait PaymentGatewayContractTests
         $paymentGateway = $this->getPaymentGateway();
 
         $newCharges = $paymentGateway->newChargesDuring(function ($paymentGateway) {
-            $paymentGateway->charge(2500, $paymentGateway->getValidTestToken(), 'test_acct_1234');
+            $paymentGateway->charge(2500, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
         });
 
         $this->assertCount(1, $newCharges);
@@ -26,11 +26,11 @@ trait PaymentGatewayContractTests
     {
         $paymentGateway = $this->getPaymentGateway();
 
-        $charge = $paymentGateway->charge(2500, $paymentGateway->getValidTestToken($paymentGateway::TEST_CARD_NUMBER), 'test_acct_1234');
+        $charge = $paymentGateway->charge(2500, $paymentGateway->getValidTestToken($paymentGateway::TEST_CARD_NUMBER), env('STRIPE_TEST_PROMOTER_ID'));
 
         $this->assertEquals(substr($paymentGateway::TEST_CARD_NUMBER, -4), $charge->cardLastFour());
         $this->assertEquals(2500, $charge->amount());
-        $this->assertEquals('test_acct_1234', $charge->destination());
+        $this->assertEquals(env('STRIPE_TEST_PROMOTER_ID'), $charge->destination());
     }
 
     /** @test */
@@ -40,7 +40,7 @@ trait PaymentGatewayContractTests
 
         $newCharges = $paymentGateway->newChargesDuring(function ($paymentGateway) {
             try {
-                $paymentGateway->charge(2500, 'invalid-payment-token', 'test_acct_1234');
+                $paymentGateway->charge(2500, 'invalid-payment-token', env('STRIPE_TEST_PROMOTER_ID'));
             } catch (PaymentFailedException $e) {
                 return;
             }
@@ -55,12 +55,12 @@ trait PaymentGatewayContractTests
     function can_fetch_charges_created_during_a_callback()
     {
         $paymentGateway = $this->getPaymentGateway();
-        $paymentGateway->charge(2000, $paymentGateway->getValidTestToken(), 'test_acct_1234');
-        $paymentGateway->charge(3000, $paymentGateway->getValidTestToken(), 'test_acct_1234');
+        $paymentGateway->charge(2000, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
+        $paymentGateway->charge(3000, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
 
         $newCharges = $paymentGateway->newChargesDuring(function ($paymentGateway) {
-            $paymentGateway->charge(4000, $paymentGateway->getValidTestToken(), 'test_acct_1234');
-            $paymentGateway->charge(5000, $paymentGateway->getValidTestToken(), 'test_acct_1234');
+            $paymentGateway->charge(4000, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
+            $paymentGateway->charge(5000, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
         });
 
         $this->assertCount(2, $newCharges);
diff --git a/tests/Unit/Billing/StripePaymentGatewayTest.php b/tests/Unit/Billing/StripePaymentGatewayTest.php
index 974b84f..cf8f988 100644
--- a/tests/Unit/Billing/StripePaymentGatewayTest.php
+++ b/tests/Unit/Billing/StripePaymentGatewayTest.php
@@ -16,4 +16,22 @@ class StripePaymentGatewayTest extends TestCase
     {
         return new StripePaymentGateway(config('services.stripe.secret'));
     }
+
+    /** @test */
+    function ninety_percent_of_the_payment_is_transferred_to_the_destination_account()
+    {
+        $paymentGateway = new StripePaymentGateway(config('services.stripe.secret'));
+
+        $paymentGateway->charge(5000, $paymentGateway->getValidTestToken(), env('STRIPE_TEST_PROMOTER_ID'));
+
+        $lastStripeCharge = array_first(\Stripe\Charge::all([
+            'limit' => 1
+        ], ['api_key' => config('services.stripe.secret')])['data']);
+
+        $this->assertEquals(5000, $lastStripeCharge['amount']);
+        $this->assertEquals(env('STRIPE_TEST_PROMOTER_ID'), $lastStripeCharge['destination']);
+
+        $transfer = \Stripe\Transfer::retrieve($lastStripeCharge['transfer'], ['api_key' => config('services.stripe.secret')]);
+        $this->assertEquals(4500, $transfer['amount']);
+    }
 }