// OTel SDK bootstrap — loaded via --require ./dist/tracing.js before the app.
// Auto-configures from OTEL_* env vars set in score.yaml / Humanitec.
// No-ops gracefully when OTEL_EXPORTER_OTLP_ENDPOINT is absent (local dev).
import { NodeSDK } from '@opentelemetry/sdk-node';
import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node';

const endpoint = process.env.OTEL_EXPORTER_OTLP_ENDPOINT;
if (endpoint) {
  const sdk = new NodeSDK({
    instrumentations: [
      getNodeAutoInstrumentations({
        '@opentelemetry/instrumentation-fs': { enabled: false },
      }),
    ],
  });

  sdk.start();
  process.on('SIGTERM', () => sdk.shutdown().finally(() => process.exit(0)));
}