import path from 'node:path';
import express from 'express';
import cookieParser from 'cookie-parser';
import session from 'express-session';
import connectPgSimple from 'connect-pg-simple';
import { env } from './config/env.js';
import { apiRouter } from './routes/index.js';
import { platformStatusRouter } from './routes/health.js';
import { errorHandler } from './http/errors.js';
import { getPool } from './db/pool.js';
import { runMigrations } from './db/migrate.js';

const app = express();
const frontendDist = path.resolve(process.cwd(), 'frontend', 'dist');
const PgSession = connectPgSimple(session);

app.disable('x-powered-by');
app.set('trust proxy', 1);
app.use(express.json({ limit: '1mb' }));
app.use(cookieParser());
app.use(session({
  name: 'acs.sid',
  secret: env.sessionSecret,
  resave: false,
  saveUninitialized: false,
  store: new PgSession({
    pool: getPool(),
    tableName: 'user_sessions',
    createTableIfMissing: true,
  }),
  cookie: {
    httpOnly: true,
    sameSite: 'lax',
    secure: env.cookieSecure,
    maxAge: 1000 * 60 * 60 * 8,
  },
}));

app.use(platformStatusRouter);
app.use('/api', apiRouter);

app.use(express.static(frontendDist));
app.get('*', (_req, res) => {
  res.sendFile(path.join(frontendDist, 'index.html'));
});

app.use(errorHandler);

try {
  await runMigrations();
  app.listen(env.port, () => {
    console.log(`ACS Node app listening on port ${env.port}`);
  });
} catch (error) {
  console.error('ACS startup failed', error);
  process.exitCode = 1;
}