import { BRANCH_ONLY_NAV_GROUP, type NavGroupId } from "@/lib/sidebar-nav";

/** Cafe owner (HQ) — billing, taxes, branches. */
export function isCafeOwner(role: string | undefined): boolean {
  return role === "Owner";
}

/** Logged in as a branch-scoped employee (JWT branchId). */
export function isBranchAccount(branchId: string | null | undefined): boolean {
  return !!branchId;
}

export const OWNER_ONLY_NAV_KEYS = ["subscription", "taxes", "branches"] as const;

export function canSeeNavGroup(
  groupId: NavGroupId,
  role: string | undefined,
  branchId: string | null | undefined
): boolean {
  if (isBranchAccount(branchId) && groupId !== BRANCH_ONLY_NAV_GROUP) {
    return false;
  }
  return true;
}

export function canSeeNavItem(
  key: string,
  role: string | undefined,
  branchId: string | null | undefined
): boolean {
  if ((OWNER_ONLY_NAV_KEYS as readonly string[]).includes(key) && !isCafeOwner(role)) {
    return false;
  }
  if (key === "branches" && isBranchAccount(branchId)) {
    return false;
  }
  return true;
}