const { buildApp } = require("./app");

async function main() {
  const app = await buildApp();

  const { host, port } = app.config;
  await app.listen({ host, port });

  let shuttingDown = false;
  const shutdown = async (signal) => {
    if (shuttingDown) return;
    shuttingDown = true;

    app.log.info({ signal }, "Graceful shutdown start");

    const timeoutMs = 10_000;
    const forceTimer = setTimeout(() => {
      app.log.error({ timeoutMs }, "Graceful shutdown timeout, force exit");
      process.exit(1);
    }, timeoutMs);
    forceTimer.unref?.();

    try {
      await app.close();
      app.log.info("Graceful shutdown completed");
      process.exit(0);
    } catch (error) {
      app.log.error({ err: error }, "Graceful shutdown failed");
      process.exit(1);
    }
  };

  process.on("SIGTERM", () => shutdown("SIGTERM"));
  process.on("SIGINT", () => shutdown("SIGINT"));
}

main().catch((err) => {
  // eslint-disable-next-line no-console
  console.error(err);
  process.exit(1);
});