// uses ctxContext()

// returns true when rule "matched"

static bool ctxProcessRule(S ruleName) {

  if (ruleName == null) false;

  ctxContext().rulesFired.add(ruleName);

  ++ctxContext().safetyCounter;

  WoodyRule rule = woodyBot().getRule(ruleName);

  if (rule == null) { print("Rule not found: " + ruleName); false; }

  printObjectWithFields(rule, "fullName", "condition", "body", "properties");

  print("Processing rule " + rule.fullName);

  S a = rule.properties.get("ANALYZER");

  if (a != null)

    ctxContext().activeAnalyzer = a;

  // evaluate condition again to set MATCH1

  rule.parsedCondition.get();

  // fake

  if (eqic(ruleName, "Agent#EVENT.NEWUSER")) {

    S theGoto = ctxFindFirstGoto(rule.body);

    print("NEWUSER -> Goto: " + theGoto);

    ctxContext().nextRule = theGoto;

    true;

  }

  if (neq(rule.properties.get("ACTIONSELECTOR"), "SWITCH"))

    // multi-action rules (RANDOMLOOP/TILLEND)

    if (ctxDoNextActionInRule(rule)) {

      if (!ctxPostRule())

        // continue with this rule

        ctxContext().setActiveRule(rule.fullName);

      true;

    }

  // SWITCH

  L<CtxCase> cases = ctxCases(rule.body);

  if (nempty(cases)) {

    for (CtxCase c : cases) {

      Bool b = c.condition == null /* default */

        || ctxEvalCondition(c.condition);

      print("case " + c.condition + " -> " + b + (b ? " (input: " + quote(ctxContext().input) + ")" : ""));

      if (isTrue(b)) {

        ctxContext().nextRule = mapGet(c.properties, "GOTO");

        a = mapGet(c.properties, "ANALYZER");

        if (a != null) {

          print("Setting analyzer to " + a + " by case in rule " + rule.fullName);

          ctxContext().activeAnalyzer = a;

        }

        ctxProcessAction(c.action);

        ctxPostRule();

        true;

      }

    }

    false;

  }

  print("Unknown rule type: " + ruleName);

  false;

}