Integrate Mail, Nexmo and Slack notifications into Cachet

app/Bus/Handlers/Events/IncidentUpdate/SendIncidentUpdateEmailNotificationHandler.php

@@ -0,0 +1,80 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Bus\Handlers\Events\IncidentUpdate;
+
+use CachetHQ\Cachet\Bus\Events\IncidentUpdate\IncidentUpdateWasReportedEvent;
+use CachetHQ\Cachet\Models\Subscriber;
+use CachetHQ\Cachet\Notifications\IncidentUpdate\IncidentUpdatedNotification;
+
+class SendIncidentUpdateEmailNotificationHandler
+{
+    /**
+     * The subscriber instance.
+     *
+     * @var \CachetHQ\Cachet\Models\Subscriber
+     */
+    protected $subscriber;
+
+    /**
+     * Create a new send incident email notification handler.
+     *
+     * @param \CachetHQ\Cachet\Models\Subscriber $subscriber
+     *
+     * @return void
+     */
+    public function __construct(Subscriber $subscriber)
+    {
+        $this->subscriber = $subscriber;
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param \CachetHQ\Cachet\Bus\Events\IncidentUpdate\IncidentUpdateWasReportedEvent $event
+     *
+     * @return void
+     */
+    public function handle(IncidentUpdateWasReportedEvent $event)
+    {
+        $update = $event->update;
+        $incident = $update->incident;
+
+        // Only send emails for public incidents.
+        if (!$incident->visible) {
+            return;
+        }
+
+        // First notify all global subscribers.
+        $globalSubscribers = $this->subscriber->isVerified()->isGlobal()->get();
+
+        $globalSubscribers->map(function ($subscriber) use ($update) {
+            $subscriber->notify(new IncidentUpdatedNotification($update));
+        });
+
+        if (!$incident->component) {
+            return;
+        }
+
+        $notified = $globalSubscribers->pluck('id')->all();
+
+        // Notify the remaining component specific subscribers.
+        $componentSubscribers = $this->subscriber
+            ->isVerified()
+            ->forComponent($incident->component->id)
+            ->get()
+            ->reject(function ($subscriber) use ($notified) {
+                return in_array($subscriber->id, $notified);
+            })->map(function ($subscriber) use ($incident) {
+                $subscriber->notify(new IncidentUpdatedNotification($incident));
+            });
+    }
+}