server.js

const http = require('http');
const fs = require('fs');
const path = require('path');
const { render } = require('./renderer');
const { getHotels } = require('./api');

const PORT = process.env.PORT || 3000;

function serveStatic(res, filePath, contentType) {
  try {
    const content = fs.readFileSync(filePath, 'utf-8');
    res.writeHead(200, { 'Content-Type': contentType });
    res.end(content);
  } catch {
    res.writeHead(404);
    res.end('Not found');
  }
}

const server = http.createServer((req, res) => {
  if (req.url === '/styles.css') {
    return serveStatic(res, path.join(__dirname, 'public', 'styles.css'), 'text/css');
  }

  if (req.url === '/') {
    try {
      const html = render(path.join(__dirname, 'content', 'index.md'));
      res.writeHead(200, { 'Content-Type': 'text/html' });
      res.end(html);
    } catch (err) {
      res.writeHead(500);
      res.end(`Error: ${err.message}`);
    }
    return;
  }

  if (req.url === '/hotels') {
    getHotels()
      .then(products => {
        const markdownPath = path.join(__dirname, 'content', 'hotels.md');
        const html = render(markdownPath, { products });
        res.writeHead(200, { 'Content-Type': 'text/html' });
        res.end(html);
      })
      .catch(err => {
        console.error('API error:', err);
        res.writeHead(500);
        res.end(`Error fetching hotels: ${err.message}`);
      });
    return;
  }

  if (req.url.startsWith('/source')) {
    const ejs = require('ejs');
    const params = new URL(req.url, 'http://localhost').searchParams;
    const filePath = params.get('file');
    if (!filePath) { res.writeHead(400); res.end('Missing file param'); return; }
    const safePath = path.resolve(__dirname, filePath);
    if (!safePath.startsWith(__dirname)) { res.writeHead(403); res.end('Forbidden'); return; }
    try {
      const content = fs.readFileSync(safePath, 'utf-8');
      const filename = path.basename(safePath);
      const templatePath = path.join(__dirname, 'views', 'source-page.ejs');
      const template = fs.readFileSync(templatePath, 'utf-8');
      const html = ejs.render(template, { filename, content, filePath }, { filename: templatePath });
      res.writeHead(200, { 'Content-Type': 'text/html' });
      res.end(html);
    } catch {
      res.writeHead(404);
      res.end('File not found');
    }
    return;
  }

  if (req.url === '/extras') {
    try {
      const html = render(path.join(__dirname, 'content', 'extras.md'));
      res.writeHead(200, { 'Content-Type': 'text/html' });
      res.end(html);
    } catch (err) {
      res.writeHead(500);
      res.end(`Error: ${err.message}`);
    }
    return;
  }

  res.writeHead(404);
  res.end('Not found');
});

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