Separated laravel app to its own folder (#540)

api/app/Notifications/Subscription/FailedPaymentNotification.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Notifications\Subscription;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Notifications\Messages\MailMessage;
+use Illuminate\Notifications\Notification;
+
+class FailedPaymentNotification extends Notification implements ShouldQueue
+{
+    use Queueable;
+
+    /**
+     * Get the notification's delivery channels.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function via($notifiable)
+    {
+        return ['mail'];
+    }
+
+    /**
+     * Get the mail representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return \Illuminate\Notifications\Messages\MailMessage
+     */
+    public function toMail($notifiable)
+    {
+        return (new MailMessage())
+            ->subject('Your Payment Failed')
+            ->greeting(__('We tried to charge your card for your OpenForm subscription but the payment but did not work.'))
+            ->line(__('Please go to OpenForm, click on your name on the top right corner, and click on "Billing".
+            You will then be able to update your card details. To avoid any service disruption, you can reply to this email whenever
+            you updated your card details, and we\'ll manually attempt to charge your card.'))
+            ->action(__('Go to OpenForm'), front_url('/'));
+    }
+}