import { NextRequest, NextResponse } from "next/server";
import bcrypt from "bcryptjs";
import { prisma } from "../../../lib/prisma";

export async function POST(req: NextRequest) {
  const { name, email, password } = await req.json() as { name?: string; email?: string; password?: string };

  if (!name?.trim() || !email?.trim() || !password || password.length < 6) {
    return NextResponse.json({ error: "Champs invalides (mot de passe min. 6 caractères)" }, { status: 400 });
  }

  const existing = await prisma.user.findUnique({ where: { email: email.toLowerCase() } });
  if (existing) {
    return NextResponse.json({ error: "Cet email est déjà utilisé" }, { status: 409 });
  }

  const hashed = await bcrypt.hash(password, 10);
  const user = await prisma.user.create({
    data: { name: name.trim(), email: email.toLowerCase(), password: hashed },
  });

  return NextResponse.json({ id: user.id, name: user.name, email: user.email }, { status: 201 });
}