import { cp, mkdtemp, rm } from 'node:fs/promises';
import { tmpdir } from 'node:os';
import { dirname, join, resolve } from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';

const root = resolve(dirname(fileURLToPath(import.meta.url)), '..');
const sourceDist = join(root, 'dist');
const sandbox = await mkdtemp(join(tmpdir(), 'maestro-worker-contract-'));
const stagedDist = join(sandbox, 'dist');

try {
  await cp(sourceDist, stagedDist, { recursive: true });
  const selector = await import(pathToFileURL(join(stagedDist, 'answer-workers', 'select-answer-worker.js')).href);
  if (typeof selector.selectAnswerWorker !== 'function') {
    throw new Error('dist selector did not resolve selectAnswerWorker');
  }
  console.log('answer-worker dist runtime smoke OK');
} finally {
  await rm(sandbox, { recursive: true, force: true });
}