%% @hidden
-module(ra_machine_simple).
-behaviour(ra_machine).

-export([
         init/1,
         apply/3
         ]).

init(#{simple_fun := Fun,
       initial_state := Initial}) ->
    {simple, Fun, Initial}.

apply(_, Cmd, {simple, Fun, State}) ->
    Next = Fun(Cmd, State),
    %% return the next state as the reply as well
    {{simple, Fun, Next}, Next}.