server.js

import * as http from 'http';
import * as fs from 'fs';
import * as path from 'path';

const PORT = process.env.PORT || 8000;
const PUBLIC_DIR = '.';

const MIME_TYPES = {
    '.html': 'text/html',
    '.css': 'text/css',
    '.js': 'text/javascript',
    '.json': 'application/json',
    '.png': 'image/png',
    '.jpg': 'image/jpeg',
    '.gif': 'image/gif',
    '.svg': 'image/svg+xml',
    '.ico': 'image/x-icon',
};

const server = http.createServer((req, res) => {
    // Remove query strings and decode URI
    const filePath = path.join(
        PUBLIC_DIR,
        decodeURIComponent(req.url.split('?')[0] === '/'
            ? 'index.html'
            : req.url.split('?')[0])
    );

    const extname = path.extname(filePath).toLowerCase();
    const contentType = MIME_TYPES[extname] || 'application/octet-stream';

    fs.readFile(filePath, (err, content) => {
        if (err) {
            if (err.code === 'ENOENT') {
                // File not found
                res.writeHead(404);
                res.end('404 Not Found');
            } else {
                // Server error
                res.writeHead(500);
                res.end(`Server Error: ${err.code}`);
            }
        } else {
            // Success
            res.writeHead(200, { 'Content-Type': contentType });
            res.end(content);
        }
    });
});

server.listen(PORT, () => {
    console.log(`Server running at http://localhost:${PORT}/`);
});

process.on('SIGTERM', () => {
    server.close(() => {
        process.exit(0);
    });
});

process.on('SIGINT', () => {
    server.close(() => {
        process.exit(0);
    });
});