/**
 * Creates an empty script tag
 */
const createScriptTag = () => {
  const scriptTag = document.createElement("script");
  return scriptTag;
};

/**
 * Returns a script tag with a src url
 * @param src src url of the script
 * @param isAsync script load async
 */
export const getScriptTagWithSrc = (
  src: string,
  isAsync: boolean = false
): HTMLScriptElement => {
  if (!src) throw "No src passed.";

  const scriptTag = createScriptTag();
  scriptTag.src = src;
  scriptTag.async = isAsync;
  return scriptTag;
};

/**
 * Returns a script tag with provided script injected
 * @param script content to be injected into a script tag
 */
export const getScriptTagWithContent = (script: string): HTMLScriptElement => {
  if (!script) throw "No script content passed.";

  const scriptTag = createScriptTag();
  scriptTag.innerHTML = script;
  return scriptTag;
};

/**
 * Injects the provided script tag into the head
 * @param scriptTag script tag to inject into head
 */
export const injectScriptTagIntoHead = (scriptTag: HTMLScriptElement): void => {
  if (!scriptTag) throw "No script tag passed.";
  window.document.head.appendChild(scriptTag);
};