Improve post-purchase flow

routes/web.php

@@ -106,7 +106,7 @@
             ],
             'quantity' => 1,
         ]],
-        'success_url' => route('course').'?purchased=1',
+        'success_url' => route('cart.success').'?session_id={CHECKOUT_SESSION_ID}',
         'cancel_url' => route('course'),
         'customer' => $user->stripe_id,
         'metadata' => $metadata,

tests/Feature/CoursePageTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests\Feature;
 
+use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use PHPUnit\Framework\Attributes\Test;
 use Tests\TestCase;
@@ -48,4 +49,61 @@ public function course_checkout_redirects_guests_to_login(): void
             ->post(route('course.checkout'))
             ->assertRedirect(route('customer.login'));
     }
+
+    #[Test]
+    public function course_checkout_redirects_to_stripe_with_cart_success_url(): void
+    {
+        $user = User::factory()->create(['stripe_id' => 'cus_test123']);
+
+        $stripeSessionUrl = 'https://checkout.stripe.com/test-session';
+        $capturedParams = null;
+
+        $mockCheckoutSessions = new class($stripeSessionUrl, $capturedParams)
+        {
+            public function __construct(
+                private string $url,
+                private &$capturedParams,
+            ) {}
+
+            public function create(array $params): object
+            {
+                $this->capturedParams = $params;
+
+                return (object) [
+                    'id' => 'cs_test123',
+                    'url' => $this->url,
+                ];
+            }
+        };
+
+        $mockCheckout = new \stdClass;
+        $mockCheckout->sessions = $mockCheckoutSessions;
+
+        $mockCustomers = new class
+        {
+            public function retrieve(): \Stripe\Customer
+            {
+                return \Stripe\Customer::constructFrom([
+                    'id' => 'cus_test123',
+                    'name' => 'Test User',
+                    'email' => 'test@example.com',
+                ]);
+            }
+        };
+
+        $mockStripeClient = $this->createMock(\Stripe\StripeClient::class);
+        $mockStripeClient->checkout = $mockCheckout;
+        $mockStripeClient->customers = $mockCustomers;
+
+        $this->app->bind(\Stripe\StripeClient::class, fn () => $mockStripeClient);
+
+        $this
+            ->actingAs($user)
+            ->post(route('course.checkout'))
+            ->assertRedirect($stripeSessionUrl);
+
+        $this->assertNotNull($capturedParams, 'Stripe checkout session should have been created');
+        $this->assertStringContainsString(route('cart.success'), $capturedParams['success_url']);
+        $this->assertStringContainsString('{CHECKOUT_SESSION_ID}', $capturedParams['success_url']);
+    }
 }