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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\Channel\AfterAnalysisChannel; |
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use Churn\Event\Channel\AfterFileAnalysisChannel; |
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use Churn\Event\Channel\BeforeAnalysisChannel; |
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/** |
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* @internal |
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*/ |
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final class BrokerImpl implements Broker |
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{ |
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/** |
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* @var array<string, array<callable>> |
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* @psalm-var array<class-string, array<callable>> |
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*/ |
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private $subscribers = []; |
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/** |
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* @var array<\Churn\Event\Channel> |
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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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new AfterAnalysisChannel(), |
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new AfterFileAnalysisChannel(), |
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new BeforeAnalysisChannel(), |
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]; |
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} |
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/** |
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* @param object $subscriber A subscriber object. |
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*/ |
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public function subscribe($subscriber): void |
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{ |
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foreach ($this->channels as $channel) { |
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if (!$channel->accepts($subscriber)) { |
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continue; |
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} |
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$this->subscribers[$channel->getEventClassname()][] = $channel->buildEventHandler($subscriber); |
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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
