const http = require('http');
const fs = require('fs');
const path = require('path');

const PORT = 4002;
const ROOT = __dirname;

const mime = {
  '.html': 'text/html',
  '.css':  'text/css',
  '.js':   'text/javascript',
};

http.createServer((req, res) => {
  const urlPath = req.url === '/' ? '/index.html' : req.url;
  const file = path.join(ROOT, urlPath);

  fs.readFile(file, (err, data) => {
    if (err) {
      res.writeHead(404);
      res.end('Not found');
      return;
    }
    const ext = path.extname(file);
    res.writeHead(200, { 'Content-Type': mime[ext] || 'text/plain' });
    res.end(data);
  });
}).listen(PORT, () => {
  console.log(`Anki FC Creator running at http://localhost:${PORT}`);
});