import { NextResponse } from 'next/server';
import { headers } from 'next/headers';
import { storeReceiptId } from '../../../lib/receipts';

export async function POST(req: Request) {
  try {
    const body = await req.text();
    const headersList = await headers();
    const signature = headersList.get('stripe-signature');

    if (!signature) {
      console.error('No Stripe signature found');
      return NextResponse.json({ error: 'No signature' }, { status: 400 });
    }

    // For now, we'll process the webhook without signature verification
    // In production, you should verify the signature using Stripe's webhook secret
    const event = JSON.parse(body);
    console.log('Stripe webhook event:', event.type);

    if (event.type === 'checkout.session.completed') {
      const session = event.data.object;
      const sessionId = session.id;
      const paymentIntentId = session.payment_intent;
      const boxId = session.metadata?.boxId;

      console.log('Payment completed:', {
        sessionId,
        paymentIntentId,
        boxId,
        amount: session.amount_total,
        currency: session.currency,
      });

      // Store the payment intent ID as the receipt ID
      if (paymentIntentId) {
        storeReceiptId(sessionId, paymentIntentId);
        console.log(`Stored receipt ID ${paymentIntentId} for session ${sessionId}`);
      }
    }

    return NextResponse.json({ received: true });
  } catch (error) {
    console.error('Webhook error:', error);
    return NextResponse.json(
      { error: 'Webhook handler failed' },
      { status: 400 }
    );
  }
}