erp-system/app/api/customers/[id]/contacts/route.ts

// /opt/erp-system/app/api/customers/[id]/contacts/route.ts
import { NextResponse } from 'next/server';
import prisma from '../../../../../lib/prisma';

export async function POST(request: Request, context: { params: Promise<{ id: string }> }) {
  try {
    const params = await context.params;
    const body = await request.json();
    
    const contact = await prisma.customerContact.create({
      data: {
        firstName: body.firstName,
        lastName: body.lastName,
        email: body.email,
        phone: body.phone || null,
        customerId: parseInt(params.id)
      }
    });
    
    return NextResponse.json(contact, { status: 201 });
  } catch (error) {
    return NextResponse.json({ error: 'Fehler beim Erstellen' }, { status: 500 });
  }
}

export async function DELETE(request: Request, context: { params: Promise<{ id: string }> }) {
  try {
    const { searchParams } = new URL(request.url);
    const contactId = searchParams.get('contactId');
    
    if (!contactId) return NextResponse.json({ error: 'Kontakt-ID fehlt' }, { status: 400 });

    await prisma.customerContact.delete({
      where: { id: parseInt(contactId) }
    });
    
    return NextResponse.json({ success: true });
  } catch (error) {
    return NextResponse.json({ error: 'Löschen fehlgeschlagen' }, { status: 500 });
  }
}