import { NextRequest, NextResponse } from "next/server"
import { getStripeClient } from "@/lib/stripe/client"
import Stripe from "stripe"

// This is your Stripe CLI webhook secret
const webhookSecret = process.env.STRIPE_WEBHOOK_SECRET

async function handler(req: NextRequest) {
  const body = await req.text()
  const signature = req.headers.get("stripe-signature") || ""

  const stripe = getStripeClient()

  let event: Stripe.Event

  try {
    event = stripe.webhooks.constructEvent(body, signature, webhookSecret!)
  } catch (err) {
    console.error("Webhook signature verification failed:", err)
    return NextResponse.json({ error: "Invalid signature" }, { status: 400 })
  }

  // Handle the event
  switch (event.type) {
    case "checkout.session.completed":
      const checkoutSession = event.data.object as Stripe.Checkout.Session
      console.log("Payment received for session:", checkoutSession.id)
      console.log("Customer email:", checkoutSession.customer_email)
      console.log("Amount:", checkoutSession.amount_total)
      // TODO: Create order record in database
      // TODO: Send confirmation email to customer
      // TODO: Update inventory for physical products
      break

    case "payment_intent.succeeded":
      const paymentIntent = event.data.object as Stripe.PaymentIntent
      console.log("Payment succeeded for intent:", paymentIntent.id)
      // TODO: Handle any post-payment logic
      break

    case "payment_intent.payment_failed":
      const failedPayment = event.data.object as Stripe.PaymentIntent
      console.log("Payment failed for intent:", failedPayment.id)
      console.log("Failure reason:", failedPayment.last_payment_error?.message)
      // TODO: Handle failed payment (notify customer, etc.)
      break

    case "invoice.payment_succeeded":
      const invoice = event.data.object as Stripe.Invoice
      console.log("Invoice payment succeeded for invoice:", invoice.id)
      // TODO: Handle recurring payment success
      break

    case "invoice.payment_failed":
      const failedInvoice = event.data.object as Stripe.Invoice
      console.log("Invoice payment failed for invoice:", failedInvoice.id)
      // TODO: Handle recurring payment failure
      break

    default:
      console.log(`Unhandled event type: ${event.type}`)
  }

  return NextResponse.json({ received: true })
}

export { handler as POST }