Stirpe checkout and webhook functions set up.

app/Http/Controllers/StripeController.php

@@ -2,7 +2,12 @@
 
 namespace App\Http\Controllers;
 
+use App\Enums\PaymentStatus;
+use App\Models\Invoice;
+use App\Models\Payment;
+use Illuminate\Http\Request;
 use Stripe\Stripe;
+use Stripe\Webhook;
 
 class StripeController extends Controller
 {
@@ -11,7 +16,71 @@ class StripeController extends Controller
         return view('stripe.index');
     }
 
-    public function checkout()
+    public function checkout(Invoice $invoice)
+    {
+        $session = \Stripe\Checkout\Session::create([
+            'payment_method_types' => ['card'],
+            'line_items' => [
+                [
+                    'price_data' => [
+                        'currency' => 'usd',
+                        'product_data' => [
+                            'name' => "Invoice {$invoice->invoice_number}",
+                        ],
+                        'unit_amount' => $invoice->balance_due * 100, // Already in cents from MoneyCast? Check this
+                    ],
+                    'quantity' => 1,
+                ],
+            ],
+            'mode' => 'payment',
+            'success_url' => route('checkout.success', $invoice),
+            'cancel_url' => route('invoice.show', $invoice),
+            'metadata' => [
+                'invoice_id' => $invoice->id, // Used by webhook to find the invoice
+            ],
+        ]);
+
+        return redirect($session->url);
+    }
+
+    public function webhook(Request $request)
+    {
+        $payload = $request->getContent();
+        $signature = $request->header('Stripe-Signature');
+
+        try {
+            $event = Webhook::constructEvent(
+                $payload,
+                $signature,
+                config('services.stripe.webhook_secret')
+            );
+        } catch (\Exception $e) {
+            return response('Invalid signature', 400);
+        }
+
+        if ($event->type === 'checkout.session.completed') {
+            $session = $event->data->object;
+
+            $invoice = Invoice::find($session->metadata->invoice_id);
+
+            if ($invoice) {
+                Payment::create([
+                    'invoice_id' => $invoice->id,
+                    'payment_date' => now(),
+                    'status' => PaymentStatus::COMPLETED,
+                    'payment_method' => PaymentMethod::CARD,
+                    'reference' => $session->payment_intent,
+                    'stripe_payment_intent_id' => $session->payment_intent,
+                    'amount' => $session->amount_total / 100, // Stripe sends cents
+                    'fee_amount' => 0, // Can retrieve actual fee via separate API call if needed
+                ]);
+            }
+        }
+
+        return response('OK', 200);
+    }
+
+    public function checkoutTutorial()
     {
         Stripe::setApiKey(config('stripe.sk'));