// uses global variable conversation
static void ctxProcessRule(S ruleName) {
  if (ruleName == null) ret;
  ++ctxContext().safetyCounter;
  WoodyRule rule = bot.getRule(ruleName);
  printObjectWithFields(rule, "fullName", "condition", "body", "properties");
  
  // fake
  if (eqic(ruleName, "Agent#EVENT.NEWUSER")) {
    S theGoto = ctxFindFirstGoto(rule.body);
    print("NEWUSER -> Goto: " + theGoto);
    ctxContext().nextRule = theGoto;
    ret;
  }
  
  if (ctxDoNextActionInRule(rule)) ret;

  SS cases = ctxCaseGotos(rule.body);
  if (nempty(cases)) {
    S matched = null, nextRule = null;
    for (S cond, target : cases) {
      Bool b = ctxEvalCondition(cond);
      print(cond + " -> " + b);
      if (isTrue(b) && nextRule == null) {
        matched = cond;
        nextRule = target;
      }
    }
    ctxContext().nextRule = nextRule; // may be null
    if (matched != null) ret;
  }
  
  print("Unknown rule type");
}