// Media Core module implements media source url behavior.
const HTTP_URL_RE = /^https?:\/\//i;
const MXC_URL_RE = /^mxc:\/\//i;
const BUFFER_URL_RE = /^buffer:\/\//i;

/** Returns true for remote media URLs that should stay URL-backed instead of local-file-backed. */
export function isPassThroughRemoteMediaSource(value: string | null | undefined): boolean {
  const normalized = value?.trim() ?? "";
  return (
    Boolean(normalized) &&
    (HTTP_URL_RE.test(normalized) || MXC_URL_RE.test(normalized) || BUFFER_URL_RE.test(normalized))
  );
}