text: const compression = require('compression');
  const serveStatic = require('serve-static');
  const bodyParser = require('body-parser');
  const path = require('path');
  const user = require('./user');
  const github = require('./github');
  const pdf = require('./pdf');
  const pandoc = require('./pandoc');
  const conf = require('./conf');
  
  const resolvePath = pathToResolve => path.join(__dirname, '..', pathToResolve);
  
  module.exports = (app, serveV4) => {
    if (process.env.NODE_ENV === 'production') {
      // Enable CORS for fonts
      app.all('*', (req, res, next) => {
        if (/\.(eot|ttf|woff2?|svg)$/.test(req.url)) {
          res.header('Access-Control-Allow-Origin', '*');
        }
        next();
      });
  
      // Use gzip compression
      app.use(compression());
    }
  
    app.get('/oauth2/githubToken', github.githubToken);
    app.get('/conf', (req, res) => res.send(conf.publicValues));
    app.get('/userInfo', user.userInfo);
    app.post('/pdfExport', pdf.generate);
    app.post('/pandocExport', pandoc.generate);
    app.post('/paypalIpn', bodyParser.urlencoded({
      extended: false,
    }), user.paypalIpn);
  
    if (serveV4) {
      /* eslint-disable global-require, import/no-unresolved */
      app.post('/sshPublish', require('../stackedit_v4/app/ssh').publish);
      app.post('/picasaImportImg', require('../stackedit_v4/app/picasa').importImg);
      app.get('/downloadImport', require('../stackedit_v4/app/download').importPublic);
      /* eslint-enable global-require, import/no-unresolved */
    }
  
    // Serve landing.html
    app.get('/', (req, res) => res.sendFile(resolvePath('static/landing/index.html')));
    // Serve sitemap.xml
    app.get('/sitemap.xml', (req, res) => res.sendFile(resolvePath('static/sitemap.xml')));
    // Serve callback.html
    app.get('/oauth2/callback', (req, res) => res.sendFile(resolvePath('static/oauth2/callback.html')));
    // Google Drive action receiver
    app.get('/googleDriveAction', (req, res) =>
      res.redirect(`./app#providerId=googleDrive&state=${encodeURIComponent(req.query.state)}`));
  
    // Serve static resources
    if (process.env.NODE_ENV === 'production') {
      if (serveV4) {
        // Serve editor.html in /viewer
        app.get('/editor', (req, res) => res.sendFile(resolvePath('stackedit_v4/views/editor.html')));
        // Serve viewer.html in /viewer
        app.get('/viewer', (req, res) => res.sendFile(resolvePath('stackedit_v4/views/viewer.html')));
      }
  
      // Serve index.html in /app
      app.get('/app', (req, res) => res.sendFile(resolvePath('dist/index.html')));
  
      // Serve style.css with 1 day max-age
      app.get('/style.css', (req, res) => res.sendFile(resolvePath('dist/style.css'), {
        maxAge: '1d',
      }));
  
      // Serve the static folder with 1 year max-age
      app.use('/static', serveStatic(resolvePath('dist/static'), {
        maxAge: '1y',
      }));
  
      app.use(serveStatic(resolvePath('dist')));
  
      if (serveV4) {
        app.use(serveStatic(path.dirname(resolvePath('stackedit_v4/public/cache.manifest'))));
  
        // Error 404
        app.use((req, res) => res.status(404).sendFile(resolvePath('stackedit_v4/views/error_404.html')));
      }
    }
  };
  