72 lines
2.1 KiB
PHP
72 lines
2.1 KiB
PHP
<?php declare(strict_types = 1);
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namespace MailPoet\Automation\Engine\Validation\AutomationRules;
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use MailPoet\Automation\Engine\Data\Automation;
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use MailPoet\Automation\Engine\Data\Step;
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use MailPoet\Automation\Engine\Exceptions;
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use MailPoet\Automation\Engine\Registry;
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use MailPoet\Automation\Engine\Validation\AutomationGraph\AutomationNode;
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use MailPoet\Automation\Engine\Validation\AutomationGraph\AutomationNodeVisitor;
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class ValidStepOrderRule implements AutomationNodeVisitor {
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/** @var Registry */
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private $registry;
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public function __construct(
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Registry $registry
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) {
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$this->registry = $registry;
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}
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public function initialize(Automation $automation): void {
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}
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public function visitNode(Automation $automation, AutomationNode $node): void {
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$step = $node->getStep();
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$registryStep = $this->registry->getStep($step->getKey());
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if (!$registryStep) {
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return;
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}
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// triggers don't require any subjects (they provide them)
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if ($step->getType() === Step::TYPE_TRIGGER) {
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return;
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}
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$requiredSubjectKeys = $registryStep->getSubjectKeys();
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if (!$requiredSubjectKeys) {
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return;
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}
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$subjectKeys = $this->collectSubjectKeys($automation, $node->getParents());
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$missingSubjectKeys = array_diff($requiredSubjectKeys, $subjectKeys);
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if (count($missingSubjectKeys) > 0) {
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throw Exceptions::missingRequiredSubjects($step, $missingSubjectKeys);
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}
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}
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public function complete(Automation $automation): void {
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}
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/**
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* @param Step[] $parents
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* @return string[]
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*/
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private function collectSubjectKeys(Automation $automation, array $parents): array {
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$triggers = array_filter($parents, function (Step $step) {
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return $step->getType() === Step::TYPE_TRIGGER;
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});
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$subjectKeys = [];
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foreach ($triggers as $trigger) {
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$registryTrigger = $this->registry->getTrigger($trigger->getKey());
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if (!$registryTrigger) {
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throw Exceptions::automationTriggerNotFound($automation->getId(), $trigger->getKey());
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}
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$subjectKeys = array_merge($subjectKeys, $registryTrigger->getSubjectKeys());
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}
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return array_unique($subjectKeys);
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}
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}
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