import type { SessionData } from "./useSession.ts";

/**
 * Check if the current user is an admin based on VITE_ADMIN_DIDS environment variable.
 * VITE_ADMIN_DIDS should be a comma-separated list of DIDs.
 */
export function isAdmin(session: SessionData | null): boolean {
  if (!session?.authenticated || !session.user?.did) {
    return false;
  }

  const adminDids = import.meta.env.VITE_ADMIN_DIDS;
  if (!adminDids) {
    return false;
  }

  const adminList = adminDids
    .split(",")
    .map((did: string) => did.trim())
    .filter(Boolean);

  return adminList.includes(session.user.did);
}

/**
 * Check if the current user is the owner of a slice or an admin.
 *
 * @param slice - The slice object with did and actorHandle fields
 * @param session - The current user session
 * @returns true if the user is the owner or an admin, false otherwise
 */
export function isSliceOwner(
  slice: { did?: string | null; actorHandle?: string | null } | null | undefined,
  session: SessionData | null,
): boolean {
  if (!session?.authenticated || !session.user) {
    return false;
  }

  // Check if user is an admin
  if (isAdmin(session)) {
    return true;
  }

  // Check if user is the slice owner
  if (!slice) {
    return false;
  }

  return (
    slice.did === session.user.did ||
    slice.actorHandle === session.user.handle
  );
}