text: import 'zone.js/dist/zone-node';
  
  import { ngExpressEngine } from '@nguniversal/express-engine';
  import * as express from 'express';
  import { join } from 'path';
  
  import { AppServerModule } from './src/main.server';
  import { APP_BASE_HREF } from '@angular/common';
  import { existsSync } from 'fs';
  
  import { REQUEST, RESPONSE } from '@nguniversal/express-engine/tokens';
  import { NgxRequest, NgxResponse } from '@gorniv/ngx-universal';
  import * as compression from 'compression';
  import * as cookieparser from 'cookie-parser';
  import { exit } from 'process';
  
  // for debug
  require('source-map-support').install();
  
  // for tests
  const test = process.env['TEST'] === 'true';
  
  // ssr DOM
  const domino = require('domino');
  const fs = require('fs');
  const path = require('path');
  // index from browser build!
  const template = fs.readFileSync(path.join('.', 'dist/ngBlogSite', 'index.html')).toString();
  // for mock global window by domino
  const win = domino.createWindow(template);
  // mock
  global['window'] = win;
  // not implemented property and functions
  Object.defineProperty(win.document.body.style, 'transform', {
    value: () => {
      return {
        enumerable: true,
        configurable: true,
      };
    },
  });
  // mock documnet
  global['document'] = win.document;
  // othres mock
  global['CSS'] = null;
  // global['XMLHttpRequest'] = require('xmlhttprequest').XMLHttpRequest;
  global['Prism'] = null;
  
  // The Express app is exported so that it can be used by serverless Functions.
  export function app() {
    const server = express();
    const distFolder = join(process.cwd(), 'dist/ngBlogSite');
    const indexHtml = existsSync(join(distFolder, 'index.original.html'))
      ? 'index.original.html'
      : 'index';
  
    // redirects!
    const redirectowww = false;
    const redirectohttps = false;
    const wwwredirecto = true;
    server.use((req, res, next) => {
      // for domain/index.html
      if (req.url === '/index.html') {
        res.redirect(301, 'https://' + req.hostname);
      }
  
      // check if it is a secure (https) request
      // if not redirect to the equivalent https url
      if (
        redirectohttps &&
        req.headers['x-forwarded-proto'] !== 'https' &&
        req.hostname !== 'localhost'
      ) {
        // special for robots.txt
        if (req.url === '/robots.txt') {
          next();
          return;
        }
        res.redirect(301, 'https://' + req.hostname + req.url);
      }
  
      // www or not
      if (redirectowww && !req.hostname.startsWith('www.')) {
        res.redirect(301, 'https://www.' + req.hostname + req.url);
      }
  
      // www or not
      if (wwwredirecto && req.hostname.startsWith('www.')) {
        const host = req.hostname.slice(4, req.hostname.length);
        res.redirect(301, 'https://' + host + req.url);
      }
  
      // for test
      if (test && req.url === '/test/exit') {
        res.send('exit');
        exit(0);
      }
  
      next();
    });
  
    // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
    server.engine(
      'html',
      ngExpressEngine({
        bootstrap: AppServerModule,
      }),
    );
  
    server.set('view engine', 'html');
    server.set('views', distFolder);
  
    // Example Express Rest API endpoints
    // server.get('/api/**', (req, res) => { });
    // Serve static files from /browser
    server.get(
      '*.*',
      express.static(distFolder, {
        maxAge: '1y',
      }),
    );
  
    // All regular routes use the Universal engine
    server.get('*', (req, res) => {
      global['navigator'] = { userAgent: req['headers']['user-agent'] } as Navigator;
      const http =
        req.headers['x-forwarded-proto'] === undefined ? 'http' : req.headers['x-forwarded-proto'];
  
      res.render(indexHtml, {
        req,
        providers: [
          { provide: APP_BASE_HREF, useValue: req.baseUrl },
  
          // for http and cookies
          {
            provide: REQUEST,
            useValue: req,
          },
          {
            provide: RESPONSE,
            useValue: res,
          },
          /// for cookie
          {
            provide: NgxRequest,
            useValue: req,
          },
          {
            provide: NgxResponse,
            useValue: res,
          },
          // for absolute path
          {
            provide: 'ORIGIN_URL',
            useValue: `${http}://${req.headers.host}`,
          },
        ],
      });
    });
  
    return server;
  }
  
  function run() {
    const port = process.env.PORT || 4000;
  
    // Start up the Node server
    const server = app();
    // gzip
    server.use(compression());
    // cokies
    server.use(cookieparser());
  
    server.listen(port, () => {
      console.log(`Node Express server listening on http://localhost:${port}`);
    });
  }
  
  // Webpack will replace 'require' with '__webpack_require__'
  // '__non_webpack_require__' is a proxy to Node 'require'
  // The below code is to ensure that the server is run only when not requiring the bundle.
  declare const __non_webpack_require__: NodeRequire;
  const mainModule = __non_webpack_require__.main;
  const moduleFilename = (mainModule && mainModule.filename) || '';
  if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
    run();
  }
  
  export * from './src/main.server';
  