I have a node.js server im running locally and wanting to setup for functionality. Ill paste you the code after the colon. Can you tell me if its setup for serving static webpages here as well:
import fs from 'fs';
import path from 'path';
import express from 'express';
import { exec } from 'child_process';
import axios from 'axios';
import tmi from 'tmi.js';
import bodyParser from 'body-parser';
import open from 'open';
import http from 'http'; // Add this line
import { Server } from 'socket.io'; // Add this line

const app = express();
const port = 3000;

const twitchClientId = 'lnsd8p8r1he47ik10xao0799ik20cd';
const twitchClientSecret = 'uq47e2ec7nf6rgzuysocwna7r4nnx8'; // for bot mystglobe in twitch developer dashboard
const redirectUri = 'http://localhost:3000/auth/twitch/callback';
const tokenFilePath = path.join(process.cwd(), 'tokens.json');

let userAccessToken = null;
let refreshToken = null;
let tokenExpirationTimer = null;

app.use(bodyParser.urlencoded({ extended: true }));

// Set up Twitch client
const twitchOptions = {
  options: { debug: true },
  connection: {
    reconnect: true,
    secure: true,
  },
  identity: {
    username: 'mysterabot',
    password: '',
  },
  channels: ['xaelisonfire'], // Replace 'target_channel' with the channel you want to join
};

const twitchClient = new tmi.client(twitchOptions);

// Load tokens from file on startup
loadTokensFromFile();

app.get('/', async (req, res) => {
  if (!userAccessToken) {
    // If the app doesn't have a user access token, open the authorization URL in a browser
    const authUrl = `https://id.twitch.tv/oauth2/authorize?client_id=${encodeURIComponent(twitchClientId)}&redirect_uri=${encodeURIComponent(redirectUri)}&response_type=code&scope=chat:read+chat:edit`;

    // Output the authUrl to the console
    console.log('Authorization URL:', authUrl);

    try {
      await open(authUrl);
      res.send('Authorization window opened. Check your browser.');
    } catch (error) {
      console.error('Error opening browser:', error.message);
      res.status(500).send('Internal Server Error');
    }
  } else {
    res.send(`User access token: ${userAccessToken}`);
  }
});

app.get('/auth/twitch/callback', async (req, res) => {
  const code = req.query.code;

  // Exchange authorization code for user access token
  const tokenResponse = await axios.post('https://id.twitch.tv/oauth2/token', null, {
    params: {
      client_id: twitchClientId,
      client_secret: twitchClientSecret,
      code,
      grant_type: 'authorization_code',
      redirect_uri: redirectUri,
    },
  });

  userAccessToken = tokenResponse.data.access_token;
  refreshToken = tokenResponse.data.refresh_token;

  // Save tokens to file
  saveTokensToFile();

  // Use the obtained user access token for Twitch chat authentication
  twitchOptions.identity.password = `oauth:${userAccessToken}`;
  twitchClient.connect();

  // Set up a timer to refresh the token every 2 weeks (in milliseconds)
  const twoWeeksInMillis = 2 * 7 * 24 * 60 * 60 * 1000;
  tokenExpirationTimer = setTimeout(refreshTokenIfNeeded, twoWeeksInMillis);

  res.send('Authorization successful! You can close the browser window and go back to the app.');
});

// Listen for Twitch chat messages
twitchClient.on('message', (channel, userstate, message, self) => {
  console.log(`${userstate.username}: ${message}`);
});

function refreshTokenIfNeeded() {
  // Check if a refresh token exists and if the token expiration timer is set
  if (refreshToken && tokenExpirationTimer) {
    // Clear the previous timer
    clearTimeout(tokenExpirationTimer);

    // Exchange the refresh token for a new access token
    axios.post('https://id.twitch.tv/oauth2/token', null, {
      params: {
        client_id: twitchClientId,
        client_secret: twitchClientSecret,
        refresh_token: refreshToken,
        grant_type: 'refresh_token',
      },
    })
      .then((response) => {
        // Update the user access token and refresh token
        userAccessToken = response.data.access_token;
        refreshToken = response.data.refresh_token;

        // Save tokens to file
        saveTokensToFile();

        // Set up a new timer for the next refresh
        tokenExpirationTimer = setTimeout(refreshTokenIfNeeded, twoWeeksInMillis);
      })
      .catch((error) => {
        console.error('Error refreshing token:', error.message);
      });
  }
}

function saveTokensToFile() {
  const tokens = {
    userAccessToken,
    refreshToken,
  };

  fs.writeFileSync(tokenFilePath, JSON.stringify(tokens), 'utf-8');
}

function loadTokensFromFile() {
  try {
    const tokensPath = path.join(process.cwd(), 'tokens.json');

    if (!fs.existsSync(tokensPath)) {
      // Create an empty tokens file if it doesn't exist
      fs.writeFileSync(tokensPath, '{}', 'utf-8');
    }

    const tokens = JSON.parse(fs.readFileSync(tokensPath, 'utf-8'));
    if (tokens && tokens.userAccessToken && tokens.refreshToken) {
      userAccessToken = tokens.userAccessToken;
      refreshToken = tokens.refreshToken;
    }
  } catch (error) {
    console.error('Error loading tokens from file:', error.message);
  }
}

// Socket.IO setup
const server = http.createServer(app); // Create an HTTP server
const io = new Server(server); // Initialize Socket.IO with the server

io.on('connection', (socket) => {
  console.log('A user connected to the Socket.IO server');
  
  // Handle Socket.IO events here
  socket.on('some_event', (data) => {
    console.log('Received some_event with data:', data);
    // You can emit events back to the client if needed
    socket.emit('some_response', { message: 'Response from server' });
  });
});

// Start the HTTP server with Socket.IO
server.listen(port, () => {
  console.log(`Server listening at http://localhost:${port}`);
});