import { NextResponse } from 'next/server';
import { prisma } from '@/lib/db';
import { getSettings } from '@/lib/settings';

export async function POST(
  request: Request,
  { params }: { params: { code: string } }
) {
  try {
    const bookingCode = params.code;
    const body = await request.json();
    const { paymentMethod } = body;

    if (!paymentMethod || !['TUNAI', 'QRIS'].includes(paymentMethod)) {
      return NextResponse.json({ error: 'Metode pembayaran tidak valid.' }, { status: 400 });
    }

    const booking = await prisma.booking.findUnique({
      where: { bookingCode },
    });

    if (!booking) {
      return NextResponse.json({ error: 'Pemesanan tidak ditemukan.' }, { status: 404 });
    }

    if (booking.status !== 'PENDING') {
      return NextResponse.json({ error: 'Pemesanan ini sudah lunas atau dibatalkan.' }, { status: 400 });
    }

    if (paymentMethod === 'TUNAI') {
      const updated = await prisma.booking.update({
        where: { bookingCode },
        data: {
          paymentMethod: 'TUNAI',
        },
      });
      return NextResponse.json({ success: true, booking: updated });
    } else {
      // QRIS via Pakasir
      const settings = await getSettings();
      const slug = settings.pakasirSlug;
      const apiKey = settings.pakasirApiKey;
      
      if (!slug || !apiKey) {
        return NextResponse.json({ error: 'Pembayaran QRIS belum dikonfigurasi lengkap oleh Admin.' }, { status: 400 });
      }

      // Record selection in DB
      await prisma.booking.update({
        where: { bookingCode },
        data: {
          paymentMethod: 'QRIS',
        },
      });

      return NextResponse.json({ success: true });
    }
  } catch (error) {
    console.error('Process payment error:', error);
    return NextResponse.json({ error: 'Gagal memproses metode pembayaran.' }, { status: 500 });
  }
}