import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { config as loadEnv } from 'dotenv';

// Load repo-root .env so DATABASE_URL is visible when this script runs from
// any CWD (pnpm invokes it from packages/db).
const here = path.dirname(fileURLToPath(import.meta.url));
loadEnv({ path: path.resolve(here, '../../../.env') });

const { PrismaClient, UserRole } = await import('@prisma/client');
const prisma = new PrismaClient();

const DEMO_TENANT_NAME = 'Demo Factory';
const DEMO_ADMIN_EMAIL = 'admin@demo.local';

async function main() {
  // Idempotent: if a prior run created the demo tenant, wipe it and recreate.
  // Cascade deletes on the relations handle the children.
  const existing = await prisma.tenant.findFirst({ where: { name: DEMO_TENANT_NAME } });
  if (existing) {
    await prisma.tenant.delete({ where: { id: existing.id } });
  }

  const tenant = await prisma.tenant.create({
    data: { name: DEMO_TENANT_NAME },
  });

  await prisma.user.create({
    data: {
      tenantId: tenant.id,
      email: DEMO_ADMIN_EMAIL,
      role: UserRole.ADMIN,
    },
  });

  await prisma.workstation.createMany({
    data: [
      { tenantId: tenant.id, code: 'WS-001', name: 'Assembly A', area: 'Floor 1' },
      { tenantId: tenant.id, code: 'WS-002', name: 'Packaging B', area: 'Floor 2' },
    ],
  });

  console.warn(
    `Seed complete — tenant=${tenant.id} (${tenant.name}), admin=${DEMO_ADMIN_EMAIL}, workstations=2`,
  );
}

main()
  .catch((err) => {
    console.error('Seed failed:', err);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });