AMQPEventListener.php
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	<?php

	namespace Nasqueron\Notifications\Listeners;

	use Nasqueron\Notifications\Events\GitHubPayloadEvent;
	use Nasqueron\Notifications\Events\NotificationEvent;
	use Nasqueron\Notifications\Analyzers\GitHub\GitHubPayloadAnalyzer;
	use Nasqueron\Notifications\Jobs\SendMessageToBroker;
	use Nasqueron\Notifications\Notification;

	use Config;

	class AMQPEventListener {
	///
	/// GitHub events
	///

	/**
	* Gets routing key, to allow consumers to select the topic they subscribe to.
	*
	* @param GitHubPayloadEvent $event the payload event
	*/
	protected static function getGitHubEventRoutingKey (GitHubPayloadEvent $event) : string {
	$key = [
	strtolower($event->door),
	self::getGroup($event),
	$event->event
	];
	return implode('.', $key);
	}

	protected static function getAnalyzer (GitHubPayloadEvent $event) : GitHubPayloadAnalyzer {
	return new GitHubPayloadAnalyzer(
	$event->door,
	$event->event,
	$event->payload
	);
	}

	/**
	* Gets the group for a specific payload
	*
	* @return string the group, central part of the routing key
	*/
	protected static function getGroup (GitHubPayloadEvent $event) : string {
	$analyzer = self::getAnalyzer($event);
	return $analyzer->getGroup();
	}

	/**
	* Handles a GitHub payload event.
	*
	* @param GitHubPayloadEvent $event
	*/
	public function onGitHubPayload(GitHubPayloadEvent $event) : void {
	$this->sendRawPayload($event);
	}

	/**
	* This is our gateway GitHub Webhooks -> Broker
	*
	* @param GitHubPayloadEvent $event
	*/
	protected function sendRawPayload(GitHubPayloadEvent $event) : void {
	$target = Config::get('broker.targets.github_events');
	$routingKey = static::getGitHubEventRoutingKey($event);
	$message = json_encode($event->payload);

	$job = new SendMessageToBroker($target, $routingKey, $message);
	$job->handle();
	}

	///
	/// Notifications
	///

	/**
	* Handles a notification event.
	*
	* @param NotificationEvent $event
	*/
	public function onNotification(NotificationEvent $event) : void {
	$this->sendNotification($event);
	}

	/**
	* Gets routing key, to allow consumers to select the topic they subscribe to.
	*
	* @param NotificationEvent $event
	*/
	protected static function getNotificationRoutingKey (Notification $notification) : string {
	$key = [
	$notification->project,
	$notification->group,
	$notification->service,
	$notification->type
	];

	return strtolower(implode('.', $key));
	}

	/**
	* This is our gateway specialized for distilled notifications
	*
	* @param NotificationEvent $event
	*/
	protected function sendNotification(NotificationEvent $event) : void {
	$notification = $event->notification;

	$target = Config::get('broker.targets.notifications');
	$routingKey = static::getNotificationRoutingKey($notification);
	$message = json_encode($notification);

	$job = new SendMessageToBroker($target, $routingKey, $message);
	$job->handle();
	}

	///
	/// Events listening
	///

	/**
	* Register the listeners for the subscriber.
	*
	* @param \Illuminate\Events\Dispatcher $events
	*/
	public function subscribe (\Illuminate\Events\Dispatcher $events) : void {
	$class = 'Nasqueron\Notifications\Listeners\AMQPEventListener';
	$events->listen(
	'Nasqueron\Notifications\Events\GitHubPayloadEvent',
	"$class@onGitHubPayload"
	);
	$events->listen(
	'Nasqueron\Notifications\Events\NotificationEvent',
	"$class@onNotification"
	);
	}
	}

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