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!7

set flag DynModule.

sclass TelegramFactsBot > AbstractTelegramThinkBot {
  S evalExp(Exp e) {
    S code = nlLogic_text(e);
    print("Eval'ing: " + code);
    temp tempAdd(hotwire_copyOver_after, voidfunc(Class c) { copyFields(mc(), c, 'telegram_msg_tl) });
    S result = str(javaEval(code));
    print("Result: " + shorten(result, 100));
    ret result;
  }

  void thinkAbout(fS s) {
    NLLogicChecker_v2 c = new NLLogicChecker_v2 {
      L<S> entities;
      
      bool checkExpression(Exp e, Matching m) {
        new Matches mm;
        if (e cast Func) {
          if (eq(e.name, "verbPhraseFromThirdPerson"))
            ret nlLogic_stringFunction(f ai_verbPhraseFromThirdPerson, e, m.matches);
          else if (eq(e.name, "singular"))
            ret nlLogic_stringFunction(f singular, e, m.matches);
          else if (eq(e.name, 'eval))
            ret eq("true", evalExp(e.arg));
          else if (eq(e.name, 'entity)) {
            if (entities == null) {
              long time = sysNow();
              S switched = switcheroo(s);
              print("Switched >> " + switched);
              entities = mapMethod('text, ai_extractEntities_v1(switched));
              print("Entities (" + elapsedMS(time) + " ms): " + joinWithComma(entities));
            }
            for (S entity : entities)
              if (matcher.match(nlLogic_text(e.arg), entity, m.matches)) true;
          } else if (startsWith(e.name, "line", mm) && isInteger(mm.rest())) {
            int n = parseInt(mm.rest())-nlLogic_numberOfLinesReferenced(checkingRule->in);
            S line = n == 0 ? s : getString(get(recentHistory, l(recentHistory)+n), 'text);
            print("Recent: " + recentHistory);
            S pat = nlLogic_text(e.arg);
            print("n=" + n + ", Matching " + e + " with " + line);
            ret matcher.match(pat, line, m.matches);
          } else if (eq(e.name, 'unknownIf)) {
            S statement = nlLogic_text(apply(e.arg, m));
            print("Checking statement: " + statement);
            ret !cic(facts, statement) && !cic(facts, "Untrue: " + statement);
          } else if (eq(e.name, 'inputContainsTokens))
            ret jcontains(s, nlLogic_text(e.arg));
          else if (eq(e.name, 'inputStartsWith))
            ret startsWith(s, nlLogic_text(e.arg));
        }
        
        if (e cast Eq) {
          Exp r = e.right;
          S var = nlLogic_text(e.left);
          if (r cast Func) pcall {
            if (eq(r.name, 'eval))
              ret new NLStringMatcher_singleDollarVar().match(var, evalExp(r.arg), m.matches);
          }
        }
        
        ret super.checkExpression(e, m);
      }
    };
    c.matcher = new NLStringMatcher_dollarVars_underscores;
    c.input = s;
    c.facts = mL_facts();
    
    L<PairS> unparsedRules = combineWithGlobalIDs(ai_unparsedTalkRules());
    unparsedRules = sortedByCalculatedField(unparsedRules, func(Pair<S> p) { jcontains(p.b, "entity(") });
    L<Pair<S, IfThen>> rules = mapPairB_pcall nlLogic_parseRule(unparsedRules);
    
    for (Pair<S, IfThen> p : rules) {
      IfThen r = p.b;
      continue if r == null;
      Exp out = r.out;
      if (out cast Func)
        if (eq(out.name, "sayIfTrue")) {
          r.out = Func('output, out.arg);
          r.in = And(r.in, Func('fact, out.arg));
          print(r);
        }
    }
    
    applyNLLogicFacts_v3(c, voidfunc(Exp e) {
      if (e cast Func) {
        if (eq(e.name, 'output))
          postMessage(nlLogic_text(e.arg));
        else if (eq(e.name, 'fact)) {
          S fact = nlLogic_text(e.arg);
          if (!contains(mL("Random facts"), fact) && mech_changed(addToMechList("Derived facts", fact)))
            postMessage("Storing fact: " + fact);
        }
      }
    }, rules);
  }
}