import { pathToFileURL } from 'node:url';
import { readConfig } from './config.mjs';
import { openStore } from './db.mjs';
import { buildApp } from './app.mjs';

export async function startServer(env = process.env) {
  const config = readConfig(env);
  const store = openStore({ dbPath: config.dbPath });
  let app;
  let stopping;
  const shutdown = () => {
    stopping ??= app.close().catch(() => { process.stderr.write('Server shutdown failed\n'); process.exitCode = 1; });
    return stopping;
  };
  try {
    app = await buildApp({ store, distRoot: config.distRoot, publicOrigin: config.publicOrigin });
    app.addHook('onClose', async () => {
      process.removeListener('SIGTERM', shutdown);
      process.removeListener('SIGINT', shutdown);
    });
    await app.listen({ host: config.host, port: config.port });
    process.once('SIGTERM', shutdown);
    process.once('SIGINT', shutdown);
  } catch (error) {
    if (app) await app.close(); else store.close();
    throw error;
  }
  return app;
}

if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
  startServer().catch(() => { process.stderr.write('Server startup failed; check configuration, private storage and build\n'); process.exitCode = 1; });
}