export const formatBytes = (bytes) => {
  const units = ['B', 'KB', 'MB', 'GB'];
  let size = bytes;
  let unitIndex = 0;
  while (size >= 1024 && unitIndex < units.length - 1) {
    size /= 1024;
    unitIndex++;
  }
  return `${size.toFixed(1)} ${units[unitIndex]}`;
};