import { buildApp } from './app.js';
import { config } from './config.js';
import { pruneExpiredSessions } from './control/sessions.js';
import { pruneStaleInvites } from './control/invites.js';
import { listAllWorkspaces } from './control/workspaces.js';
import { licenceNotice } from './licence/index.js';
import { openInstallation } from './tenancy/install.js';

const install = openInstallation();
const { control, registry } = install;

if (install.adoption.adopted) {
  const workspace = install.adoption.workspace!;
  console.log('');
  console.log(`  Wellformed adopted ${config.legacyDbPath} as its first workspace.`);
  console.log(`    address:  /w/${workspace.slug}`);
  console.log(`    accounts: ${install.adoption.accountsMoved} moved to the control database`);
  console.log('  Everyone signs in with the password they already had.');
  console.log('');
}

const app = await buildApp({ control, registry });

const housekeeping = setInterval(
  () => {
    pruneExpiredSessions(control);
    pruneStaleInvites(control);
    registry.sweep();
  },
  10 * 60 * 1000,
);
housekeeping.unref();

async function shutdown(signal: string): Promise<void> {
  app.log.info(`${signal} received, shutting down`);
  clearInterval(housekeeping);
  try {
    await app.close();
  } finally {
    install.close();
  }
  process.exit(0);
}

for (const signal of ['SIGINT', 'SIGTERM'] as const) {
  process.on(signal, () => {
    void shutdown(signal);
  });
}

try {
  await app.listen({ port: config.port, host: config.host });
  const origin = `http://${config.host}:${config.port}`;
  const workspaces = listAllWorkspaces(control);

  console.log(`[wellformed] listening on ${origin}`);
  console.log(`[wellformed] control ${config.controlDbPath}`);
  console.log(`[wellformed] workspaces ${config.tenantsDir} (${workspaces.length})`);
  for (const line of licenceNotice(config.licence)) console.log(line);

  if (workspaces.length === 0) {
    console.log('');
    if (config.signupsOpen) {
      console.log(`  No workspaces yet. Create the first one at ${origin}/signup`);
    } else {
      console.log('  No workspaces yet, and signups are closed. Create one with:');
      console.log('    npm run provision -- --email you@example.com --password <password>');
    }
    console.log('');
  }
} catch (err) {
  app.log.error(err);
  install.close();
  process.exit(1);
}