import { promises as fs } from "node:fs";
import path from "node:path";

const target = path.resolve("packages/features/builder/src/domain.ts");
const content = await fs.readFile(target, "utf8");

if (!content.includes("Readonly<") || !content.includes("Object.freeze")) {
  console.error("Immutability check failed in builder domain");
  process.exit(1);
}

console.log("Immutability check passed");