a.js

const express = require('express');
const fs = require('fs');
const path = require('path');
const os = require('os');

const app = express();
const PORT = 4000;

// Target log directory (in home dir)
const logDir = path.join(os.homedir(), 'irandra-api', 'log');

app.get('/', (req, res) => {
  fs.readdir(logDir, (err, files) => {
    if (err) {
      return res.status(500).send('Cannot read log directory');
    }

    const selectedFile = req.query.file;
    let fileContent = '';

    if (selectedFile && files.includes(selectedFile)) {
      const filePath = path.join(logDir, selectedFile);

      try {
        const data = fs.readFileSync(filePath, 'utf8');
        fileContent = `<h2>Contents of: ${selectedFile}</h2><pre>${data.replace(/</g, '&lt;')}</pre>`;
      } catch (e) {
        fileContent = `<p style="color:red;">Error reading file: ${selectedFile}</p>`;
      }
    }

    const fileLinks = files.map(f =>
      `<li><a href="/?file=${encodeURIComponent(f)}">${f}</a></li>`
    ).join('');

    res.send(`
      <h1>Log Viewer - ~/irandra-api/log</h1>
      <ul>${fileLinks}</ul>
      ${fileContent}
    `);
  });
});

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