391 Notification refactorings (#441)

* Refactor notifications to allow easier plugins

* Notification refactoring

* Formatting

* Move news to NewsService; cleanup of events

* More refactoring; added send email out for news item and the template

* Formatting

* Formatting

app/Notifications/Channels/MailChannel.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Notifications\Channels;
+
+use Illuminate\Notifications\Messages\MailMessage;
+
+trait MailChannel
+{
+    private $mailSubject;
+    private $mailTemplate;
+    private $mailTemplateArgs;
+
+    /**
+     * Set the arguments for the toMail() method
+     *
+     * @param string $subject  Email subject
+     * @param string $template Markdown template to use
+     * @param array  $args     Arguments to pass to the template
+     */
+    public function setMailable($subject, $template, $args)
+    {
+        $this->mailSubject = $subject;
+        $this->mailTemplate = $template;
+        $this->mailTemplateArgs = $args;
+    }
+
+    /**
+     * Get the mail representation of the notification.
+     *
+     * @param mixed $notifiable
+     *
+     * @return \Illuminate\Notifications\Messages\MailMessage
+     */
+    public function toMail($notifiable)
+    {
+        return (new MailMessage())
+            ->from(config('mail.from.address', 'no-reply@phpvms.net'))
+            ->subject($this->mailSubject)
+            ->markdown($this->mailTemplate, $this->mailTemplateArgs);
+    }
+}