import fs from 'node:fs';
import path from 'node:path';
export function writeExpressApiTemplate(targetDir, name) {
    fs.mkdirSync(path.join(targetDir, 'routes'), { recursive: true });
    fs.writeFileSync(path.join(targetDir, 'package.json'), `${JSON.stringify({
        name,
        version: '0.1.0',
        private: true,
        type: 'module',
        scripts: {
            dev: 'node --watch index.js',
            start: 'node index.js',
            test: 'echo "no tests yet" && exit 0',
        },
        dependencies: {
            express: '^5.0.0',
        },
    }, null, 2)}\n`);
    fs.writeFileSync(path.join(targetDir, 'index.js'), `import express from 'express';
import healthRouter from './routes/health.js';

const app = express();
app.use(express.json());
app.use('/api/health', healthRouter);

const port = process.env.PORT ?? 3000;
app.listen(port, () => {
  console.log(\`${name} listening on http://localhost:\${port}\`);
});
`);
    fs.writeFileSync(path.join(targetDir, 'routes', 'health.js'), `import { Router } from 'express';

const router = Router();

router.get('/', (_req, res) => {
  res.json({ status: 'ok' });
});

export default router;
`);
    fs.writeFileSync(path.join(targetDir, '.gitignore'), 'node_modules/\n');
    return targetDir;
}
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