javascript for bloons json data regular mode

(level => {
  const data = JSON.parse(this); // 'this' is the JSON from the first urlfetch
  const lvl = parseInt(level.trim(), 10);
  if (isNaN(lvl) || lvl < 1) return "Please provide a valid level number (e.g., !bl 34)";
  const entry = data.find(row => row.level === lvl);
  if (!entry) return `Level ${lvl} not found or data is incomplete`;
  return `Round ${entry.level}: ${entry.bloons} - RBE: ${entry.rbe} - Cash: $${entry.cash} - Total Cash: $${entry.totalCash}`;
})(decodeURIComponent("$(querystring)")).substring(0, 400)