export const getApiBaseUrl = (): string => {
  const envVal = import.meta.env.VITE_API_BASE_URL;

  // If env variable is set and not a localhost fallback, use it directly
  if (envVal && !envVal.includes('localhost') && !envVal.includes('127.0.0.1')) {
    return envVal;
  }

  // Fallback: use the current window origin (works on HuggingFace since
  // frontend and backend are served from the same domain via Nginx proxy)
  return window.location.origin;
};

export const getWsUrl = (): string => {
  const envVal = import.meta.env.VITE_WS_URL;

  let url = (envVal && !envVal.includes('localhost')) ? envVal : getApiBaseUrl();

  // SockJS requires 'http:' or 'https:' scheme, not 'ws:' or 'wss:'
  if (url.startsWith('ws://')) {
    url = url.replace(/^ws:\/\//i, 'http://');
  } else if (url.startsWith('wss://')) {
    url = url.replace(/^wss:\/\//i, 'https://');
  }

  return url;
};