import { createCanaryGateway } from './canary-gateway.js';
import { readCanaryRuntimeOptions } from './canary-runtime.js';

const gateway = createCanaryGateway(readCanaryRuntimeOptions(process.env));

let stopping = false;
async function stop(signal: string): Promise<void> {
  if (stopping) return;
  stopping = true;
  process.stdout.write(`Stopping canary gateway (${signal})\n`);
  await gateway.stop();
}

process.once('SIGINT', () => void stop('SIGINT'));
process.once('SIGTERM', () => void stop('SIGTERM'));

try {
  await gateway.start();
  process.stdout.write(`Canary gateway listening at ${gateway.origin}\n`);
} catch (error) {
  process.stderr.write(`${error instanceof Error ? error.message : String(error)}\n`);
  process.exitCode = 1;
}