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<?php |
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declare(strict_types=1); |
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namespace Churn\Event; |
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use Churn\Event\Event\AfterAnalysisEvent; |
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use Churn\Event\Event\AfterFileAnalysisEvent; |
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use Churn\Event\Event\BeforeAnalysisEvent; |
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use Churn\Event\Subscriber\AfterAnalysis; |
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use Churn\Event\Subscriber\AfterFileAnalysis; |
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use Churn\Event\Subscriber\BeforeAnalysis; |
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/** |
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* @internal |
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*/ |
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class Broker |
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{ |
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/** |
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* @var array<string, array<callable>> |
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*/ |
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private $subscribers; |
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/** |
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* @var array<array<string>> |
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*/ |
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private $channels; |
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/** |
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* Class constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->channels = [ |
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[AfterAnalysis::class, 'onAfterAnalysis', AfterAnalysisEvent::class], |
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[AfterFileAnalysis::class, 'onAfterFileAnalysis', AfterFileAnalysisEvent::class], |
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[BeforeAnalysis::class, 'onBeforeAnalysis', BeforeAnalysisEvent::class], |
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]; |
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} |
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/** |
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* @param mixed $subscriber A subscriber object. |
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*/ |
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public function subscribe($subscriber): void |
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{ |
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foreach ($this->channels as [$class, $method, $eventClass]) { |
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if (!$subscriber instanceof $class) { |
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continue; |
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} |
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$this->subscribers[$eventClass][] = static function (Event $event) use ($subscriber, $method): void { |
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$subscriber->$method($event); |
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}; |
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} |
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} |
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/** |
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* @param Event $event The triggered event. |
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*/ |
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public function notify(Event $event): void |
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{ |
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foreach ($this->subscribers as $eventClass => $subscribers) { |
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if (!$event instanceof $eventClass) { |
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continue; |
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} |
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$this->notifyAll($event, $subscribers); |
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} |
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} |
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/** |
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* @param Event $event The triggered event. |
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* @param array<callable> $subscribers The subscribers to notify. |
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*/ |
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private function notifyAll(Event $event, array $subscribers): void |
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{ |
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foreach ($subscribers as $subscriber) { |
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$subscriber($event); |
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} |
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} |
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} |
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bmitch /
churn-php
