const LOCAL_API_BASE_URL = "http://127.0.0.1:8787";

function isLocalLikeHostname(hostname: string) {
  return (
    hostname === "localhost" ||
    hostname === "127.0.0.1" ||
    hostname === "0.0.0.0" ||
    /^10\./.test(hostname) ||
    /^192\.168\./.test(hostname) ||
    /^172\.(1[6-9]|2\d|3[0-1])\./.test(hostname)
  );
}

export function resolveApiBaseUrl() {
  if (import.meta.env.DEV) {
    return LOCAL_API_BASE_URL;
  }

  if (typeof window !== "undefined" && isLocalLikeHostname(window.location.hostname)) {
    return LOCAL_API_BASE_URL;
  }

  return import.meta.env.VITE_API_BASE_URL || LOCAL_API_BASE_URL;
}