create or replace function public.is_company_admin(account_slug text)
returns boolean
set search_path = ''
language plpgsql
as $$
declare
  is_owner boolean;
begin
  select exists (
    select 1
    from public.accounts_memberships am
    join public.accounts a on a.id = am.account_id
    where am.user_id = auth.uid()
      and am.account_role = 'owner'
      and a.slug = account_slug
  ) into is_owner;

  return is_owner;
end;
$$;

grant execute on function public.is_company_admin(text) to authenticated, service_role;