// In my case, this goes into functions/src/functions/stripe-webhook.ts

import * as logger from 'firebase-functions/logger';
import { onRequest } from 'firebase-functions/v2/https';
import Stripe from 'stripe';
import { handleSubscriptionUpdated } from '../services/stripe';

export const stripeWebhook = onRequest(async (request, response) => {
  const stripe = new Stripe(process.env.STRIPE_SECRET_KEY || '', {
    apiVersion: '2025-02-24.acacia',
  });

  const sig = request.headers['stripe-signature'];

  if (!sig) {
    response.status(400).send('Missing stripe-signature header');
    return;
  }

  try {
    const event = stripe.webhooks.constructEvent(request.rawBody, sig, process.env.STRIPE_WEBHOOK_SECRET || '');

    // Handle the event
    switch (event.type) {
      case 'customer.subscription.created':
      case 'customer.subscription.updated':
      case 'customer.subscription.deleted':
      case 'customer.subscription.paused':
      case 'customer.subscription.resumed':
        await handleSubscriptionUpdated(event);
        break;
      default:
        logger.info(`Unhandled event type ${event.type}`);
    }

    response.json({ received: true });
  } catch (err: unknown) {
    logger.error('Error processing webhook:', err);
    response.status(400).send(`Webhook Error: ${err instanceof Error ? err.message : 'Unknown error'}`);
  }
});