loadScript.js

const isBrowser =
  typeof window !== "undefined" && typeof window.document !== "undefined";

export default function loadScript(src, onSuccess, onError) {
  if (!isBrowser) return;

  const scriptEl = document.createElement("script");
  scriptEl.setAttribute("src", src);

  scriptEl.addEventListener("load", onSuccess);
  scriptEl.addEventListener("error", onError);

  document.body.appendChild(scriptEl);

  return () => {
    scriptEl.removeEventListener("load", onSuccess);
    scriptEl.removeEventListener("error", onError);
  };
}

export function removeScript(src) {
  const existing = document.body.querySelectorAll(`script[src="${src}"]`);
  existing.forEach((el) => {
    document.body.removeChild(el);
  });
}