/**
 * *** NOTE ON IMPORTING FROM ANGULAR AND NGUNIVERSAL IN THIS FILE ***
 *
 * If your application uses third-party dependencies, you'll need to
 * either use Webpack or the Angular CLI's `bundleDependencies` feature
 * in order to adequately package them for use on the server without a
 * node_modules directory.
 *
 * However, due to the nature of the CLI's `bundleDependencies`, importing
 * Angular in this file will create a different instance of Angular than
 * the version in the compiled application code. This leads to unavoidable
 * conflicts. Therefore, please do not explicitly import from @angular or
 * @nguniversal in this file. You can export any needed resources
 * from your application's main.server.ts file, as seen below with the
 * import for `ngExpressEngine`.
 */

import 'zone.js/dist/zone-node';
import 'reflect-metadata';

import * as express from 'express';
import { join } from 'path';
import { REQUEST, RESPONSE } from '@nguniversal/express-engine/tokens';
import * as bodyParser from 'body-parser';
import * as cookieParser from 'cookie-parser';

// Express server
const app = express();

const PORT = process.env.PORT || 3000;
const DIST_FOLDER = join(process.cwd(), 'dist/browser');

// * NOTE :: leave this as require() since this file is built Dynamically from webpack
const { ServerAppModuleNgFactory, LAZY_MODULE_MAP, ngExpressEngine, provideModuleMap } = require('./dist/server/main');

app.use(cookieParser());
app.use(bodyParser.json());

app.engine('html', (_, options, callback) =>
  ngExpressEngine({
    bootstrap: ServerAppModuleNgFactory,
    providers: [
      {
        provide: REQUEST,
        useValue: (options as any).req,
      },
      {
        provide: RESPONSE,
        useValue: (options as any).req.res,
      },
      provideModuleMap(LAZY_MODULE_MAP)
    ],
  })(_, options, callback)
);

app.set('view engine', 'html');
app.set('views', DIST_FOLDER);

// Example Express Rest API endpoints
// app.get('/api/**', (req, res) => { });
// Serve static files from /browser
app.get('*.*', express.static(DIST_FOLDER, {
  maxAge: '1y'
}));

// All regular routes use the Universal engine
app.get('*', (req, res) => {
  res.render('index', { req });
});

// Start up the Node server
app.listen(PORT, () => {
  console.log(`Node Express server listening on http://localhost:${PORT}`);
});