Implement backend for blackjack game with Discord authentication, database integration, and WebSocket support

src/routes/stripe.js

@@ -0,0 +1,49 @@
+import express, { Router } from 'express';
+import Stripe from 'stripe';
+import { query } from '../db.js';
+
+const router = Router();
+const stripe = new Stripe(process.env.STRIPE_SECRET_KEY || '', {
+  apiVersion: '2024-06-20'
+});
+
+router.post('/api/stripe/webhook', express.raw({ type: 'application/json' }), async (req, res) => {
+  const signature = req.headers['stripe-signature'];
+  let event;
+
+  try {
+    event = stripe.webhooks.constructEvent(
+      req.body,
+      signature,
+      process.env.STRIPE_WEBHOOK_SECRET || ''
+    );
+  } catch (err) {
+    return res.status(400).send('Webhook alairas hiba.');
+  }
+
+  if (event.type === 'payment_intent.succeeded') {
+    const intent = event.data.object;
+    const amount = Number(intent.amount || 0);
+    const userId = Number(intent.metadata?.userId || 0);
+
+    if (userId && amount) {
+      const rows = await query(
+        'SELECT status FROM deposits WHERE stripe_payment_intent_id = ?',
+        [intent.id]
+      );
+      const status = rows[0]?.status;
+
+      if (status !== 'succeeded') {
+        await query(
+          'UPDATE deposits SET status = ? WHERE stripe_payment_intent_id = ?',
+          ['succeeded', intent.id]
+        );
+        await query('UPDATE users SET balance = balance + ? WHERE id = ?', [amount, userId]);
+      }
+    }
+  }
+
+  return res.json({ received: true });
+});
+
+export default router;