!752

static Action lastAction;

concepts.

concept History {
  new RefL events;
}

abstract concept Input {
}

Input > TextInput {
  S line;
  
  *() {}
  *(S *line) { change(); }
}

abstract concept Action {
  Bool good; // true, false or null
}

Action > NoAction {}

Action > PrintAction {
  S text;
  
  *() {}
  *(S *text) { change(); }
}

static History historyObj() { ret uniq(History); }

static L<Concept> history() { ret historyObj().events; }
static void historyAdd(Concept event) { historyObj().events.add(event); }

p-awt {
  concepts();
  
  showControls(jcenteredLine(
    jbutton("Good!", "good"),
    jbutton("Bad!", "bad")));
  
  makeBot();
}

synchronized answer {
  historyAdd(new TextInput(s));
  if "hello" {
    S answer = "Hello!";
    historyAdd(new PrintAction(answer));
    ret answer;
  }
}

static Action lastAction() {
  Concept last = last(history());
  if (!last << Action) {
    historyAdd(last = new NoAction);
    print("I'm assuming you mean my lack of action?");
  }
  ret last/Action;
}

svoid good {
  Action action = lastAction();
  if (action == null) ret;
  if (isTrue(action.good))
    print("Thanks, I know! :-)");
  else {
    cset(action, good := true);
    print("Thanks, saved!");
  }
}

svoid bad {
  Action action = lastAction();
  if (action == null) ret;
  if (isFalse(action.good))
    print("I heard that before...");
  else {
    cset(action, good := false);
    print("I don't know what I did wrong yet, but I'll save this feedback!");
  }
}