export const dynamic = 'force-dynamic';

import { NextResponse } from 'next/server';
import { prisma } from '@/lib/db';
import bcrypt from 'bcryptjs';

export async function POST(request: Request) {
  try {
    const body = await request.json();
    const { email, password, firstName, lastName } = body ?? {};

    if (!email || !password) {
      return NextResponse.json({ error: 'Email and password required' }, { status: 400 });
    }

    const existing = await prisma.user.findUnique({ where: { email } });
    if (existing) {
      return NextResponse.json({ error: 'User already exists' }, { status: 400 });
    }

    const hashedPassword = await bcrypt.hash(password, 10);
    const user = await prisma.user.create({
      data: {
        email,
        password: hashedPassword,
        firstName: firstName ?? null,
        lastName: lastName ?? null,
      },
    });

    return NextResponse.json({ id: user.id, email: user.email }, { status: 201 });
  } catch (error) {
    console.error('Signup error:', error);
    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
  }
}