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 },
  );
}