import express from 'express';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { config, ensureRuntimeDirectories } from './src/config.js';
import { openDatabase } from './src/database.js';
import { createApiRouter } from './src/routes/api.js';
import { notFoundHandler, errorHandler } from './src/middleware/errors.js';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
ensureRuntimeDirectories();
const db = openDatabase();
const app = express();

app.disable('x-powered-by');
app.use(express.json({
  limit: config.maxJsonBodyBytes,
  type: ['application/json', 'application/*+json', 'text/json']
}));
app.use(express.urlencoded({ extended: true, limit: '2mb' }));
app.use('/api', createApiRouter(db));
app.use(express.static(path.join(__dirname, 'public'), { extensions: ['html'] }));
app.use(notFoundHandler);
app.use(errorHandler);

const server = app.listen(config.port, config.host, () => {
  console.log(`Wegwichtel läuft auf http://${config.host}:${config.port}`);
});

function shutdown(signal) {
  console.log(`${signal}: Server wird beendet.`);
  server.close(() => {
    db.close();
    process.exit(0);
  });
}
process.on('SIGINT', () => shutdown('SIGINT'));
process.on('SIGTERM', () => shutdown('SIGTERM'));