import fs from 'node:fs';
import path from 'node:path';
import { spawnSync } from 'node:child_process';

const root = path.resolve(import.meta.dirname, '..');
const workspaceRoot = path.resolve(root, '..');
function workspaceTemps() {
  return new Set(fs.readdirSync(workspaceRoot, { withFileTypes: true })
    .filter(entry => entry.name.startsWith('.tmp-'))
    .map(entry => entry.name));
}
function collect(directory, found = []) {
  for (const entry of fs.readdirSync(directory, { withFileTypes: true })) {
    const file = path.join(directory, entry.name);
    if (entry.isDirectory()) collect(file, found);
    else if (entry.name.endsWith('.test.mjs')) found.push(file);
  }
  return found;
}
const tests = collect(path.join(root, 'mcp', 'src')).sort();
if (!tests.length) throw new Error('No tests found.');
const before = workspaceTemps();
const result = spawnSync(process.execPath, ['--test', ...tests], { cwd: root, stdio: 'inherit' });
const created = [...workspaceTemps()].filter(name => !before.has(name));
if (created.length) {
  console.error(`Tests polluted the workspace root: ${created.join(', ')}`);
  process.exit(1);
}
process.exit(result.status || 0);