export const getWebSocketUrl = (endpoint = '') => {
  const protocol = window.location.protocol;
  const host = window.location.host;
  
  // 自动识别协议：HTTPS用wss，HTTP用ws
  const wsProtocol = protocol === 'https:' ? 'wss:' : 'ws:';
  const websocketPath = import.meta.env.VITE_APP_WEBSOCKET_PATH;
  
  return `${wsProtocol}//${host}${websocketPath}${endpoint}`;
};