!7

set flag DynModule.

sclass CalculationBot > DynPrintLog {
  bool debug;
  LS entities = synchroList();
  LS facts = synchroList();
  SS questions = synchroCIMap();
  L<IfThen> rules;
  L<S> externalFacts;
  
  start {
    loadFunctions_preferCached();
    dm_useLocallyCopiedMechLists();
    
    Pair<L<IfThen>, LS> p = ai_activeRulesAndFacts();
    rules = p.a;
    rules.addAll(ai_parseRules(mL_raw("Data structures [Script]")));
    //print("Have rules:");
    //pnl(rules);
    externalFacts = p.b;
    
    entities.add("the dawn of time");
    new Thinking().step();
    print("done");
  }

  S evalExp(Exp e, NLLogicChecker_v2.Matching m) {
    S code = nlLogic_text(e);
    print("Eval'ing: " + code);
    S result = str(evalWithDollarVars(code, m.matches));
    print("Result: " + shorten(result, 100));
    ret result;
  }

  class Thinking {
    void step {
      final new NLLogicChecker_v3 c;

      c.entities = entities;
      c.evaluator = func(Exp e, NLLogicChecker_v2.Matching m) -> S { evalExp(e, m) };
      
      c.facts = concatLists(facts, externalFacts);

      applyNLLogicFacts_v4(c, voidfunc(IfThen rule, NLLogicChecker_v2.Matching m) {
        // Rule fired!
        
        print("Firing rule " + rule.globalID);
        executeRule(c, RuleWithParams(rule, m.matches));
      }, rules);
    }
    
    void executeRule(NLLogicChecker_v3 c, RuleWithParams r) {
      // Execute rule
      for (Exp e : nlLogic_unrollAnd(r.rule.out)) {
        e = c.apply(e, r.matches);
        if (e cast Func) {
          S name = e.name;
          if (eq(name, 'fact)) {
            S fact = nlLogic_text(e.arg);
            if (!containsNL(facts, fact))
              facts.add(fact);
          } else if (eq(name, 'entity)) {
            S ent = nlLogic_text(e.arg);
            if (!containsNL(entities, ent)) {
              entities.add(ent);
              print("New entity: " + ent);
            }
          } /*else if (eq(name, 'input)) {
            S x = nlLogic_text(e.arg);
            if (!rewrittenInputs.contains(x) && newRewrittenInputs.add(x))
              print("New rewritten input: " + x);
          } */else
            ret with print("Skipping rule with unknown RHS func: " + e.name);
        } else
          ret with print("Skipping rule with unknown RHS element: " + e);
      }
    }
  } // end class Thinking
}

Began life as a copy of #1017807