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start(Module):-start(Module, localhost).
start(Module, Host):-start(Module, Host, 8068).
start(Module, Host, Port):-
socket('AF_INET', Socket),
hostname_address(Host, HostAddress),
socket_connect(Socket, 'AF_INET'(HostAddress, Port),
StreamIn, StreamOut),
launch(Module, StreamIn, StreamOut),
socket_close(Socket).
launch(Module, StreamIn, StreamOut) :-
atom_concat('rules/', Module, Path), consult(Path),
do(StreamIn, StreamOut, Module, [], []).
do(_, _, _, _, [e|_]) :- !.
do(StreamIn, StreamOut, Module, ModuleState, Hist) :-
call(Module, Hist, ModuleDecision, ModuleState, NewModuleState),
write(StreamOut, ModuleDecision), flush_output(StreamOut),
loop(StreamIn, StreamOut, Module, NewModuleState, Hist).
loop(StreamIn, StreamOut, Module, ModuleState, Hist) :-
get_code(StreamIn, ChoiceCode), byte_to_atom(ChoiceCode, Choice),
write(Choice),
do(StreamIn, StreamOut, Module, ModuleState, [Choice|Hist]).
% -1 = EOF
byte_to_atom(-1, e):-!.
byte_to_atom(Byte, Atom):-name(Atom, [Byte]).
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