const express = require('express');
const ejs = require('ejs');
const fs = require('fs');
const path = require('path');
const app = express();
const port = 3000;

//process.env.FLAG exists

// Set EJS as the view engine
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));

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

app.get('/', (req, res) => {
  const sourceCode = fs.readFileSync(__filename, 'utf8');
  res.type('text/plain').send(sourceCode);
});

app.get('/home', (req, res) => {
  let userName = req.query.input || 'guest';
  let userTemplate = `Welcome ${userName}`;
  try {
    const output = ejs.render(userTemplate);
    res.send(output);
  } catch (err) {
    res.status(500).send('Error rendering template');
  }
});

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