registry = $registry; } public function initialize(Automation $automation): void { } public function visitNode(Automation $automation, AutomationNode $node): void { $step = $node->getStep(); $registryStep = $this->registry->getStep($step->getKey()); if (!$registryStep) { return; } $subjects = $this->collectSubjects($automation, $node->getParents()); $args = new StepValidationArgs($automation, $step, $subjects); $registryStep->validate($args); } public function complete(Automation $automation): void { } /** * @param Step[] $parents * @return Subject[] */ private function collectSubjects(Automation $automation, array $parents): array { $triggers = array_filter($parents, function (Step $step) { return $step->getType() === Step::TYPE_TRIGGER; }); $subjectKeys = []; foreach ($triggers as $trigger) { $registryTrigger = $this->registry->getTrigger($trigger->getKey()); if (!$registryTrigger) { throw Exceptions::automationTriggerNotFound($automation->getId(), $trigger->getKey()); } $subjectKeys = array_merge($subjectKeys, $registryTrigger->getSubjectKeys()); } $subjects = []; foreach (array_unique($subjectKeys) as $key) { $subject = $this->registry->getSubject($key); if (!$subject) { throw Exceptions::subjectNotFound($key); } $subjects[] = $subject; } return $subjects; } }