const express = require('express');
const fetch = require('node-fetch');
const router = express.Router();

// Fetch cover from iTunes API to avoid frontend CORS issues
router.get('/', async (req, res) => {
  const q = req.query.q;
  if (!q) return res.status(400).json({ error: 'Missing q parameter' });
  
  try {
    const url = `https://itunes.apple.com/search?term=${encodeURIComponent(q)}&media=music&entity=song&limit=1`;
    const response = await fetch(url);
    const data = await response.json();
    
    if (data.results && data.results[0] && data.results[0].artworkUrl100) {
      const src = data.results[0].artworkUrl100.replace('100x100bb', '300x300bb');
      return res.json({ url: src });
    }
    
    res.json({ url: null });
  } catch (err) {
    console.error('iTunes cover fetch error', err);
    res.status(500).json({ error: 'Server error fetching cover' });
  }
});

module.exports = router;