import argon2 from "argon2";
import { PrismaClient, UserRole } from "@prisma/client";

const prisma = new PrismaClient();

const tenantName = process.env.SEED_TENANT ?? "Default Tenant";
const email = process.env.SEED_ADMIN_EMAIL ?? process.env.SEED_EMAIL ?? "admin@example.com";
const password = process.env.SEED_ADMIN_PASSWORD ?? process.env.SEED_PASSWORD ?? "change-me-please";
const role = (process.env.SEED_ROLE as UserRole | undefined) ?? "ADMIN";

const main = async () => {
  const hash = await argon2.hash(password);
  const tenantId = process.env.SEED_TENANT_ID ?? "seed-tenant";
  const tenant = await prisma.tenant.upsert({
    where: { id: tenantId },
    update: { name: tenantName },
    create: { id: tenantId, name: tenantName }
  });

  const existing = await prisma.user.findUnique({ where: { email } });
  if (existing) {
    await prisma.user.update({
      where: { email },
      data: { password: hash, role, tenantId: tenant.id }
    });
    process.stdout.write("Seed admin updated.\n");
    return;
  }

  await prisma.user.create({
    data: { tenantId: tenant.id, email, password: hash, role }
  });

  process.stdout.write("Seeded admin user.\n");
};

main()
  .catch((err) => {
    process.stderr.write(`${err instanceof Error ? err.message : String(err)}\n`);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });