add should reschedule for (#104)

Co-authored-by: atymic <atymicq@gmail.com>

src/Events/NotificationRescheduled.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Thomasjohnkane\Snooze\Events;
+
+use Illuminate\Queue\SerializesModels;
+use Thomasjohnkane\Snooze\Models\ScheduledNotification;
+
+class NotificationRescheduled
+{
+    use SerializesModels;
+
+    public $scheduledNotification;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param  \Thomasjohnkane\Snooze\Models\ScheduledNotification  $scheduledNotification
+     * @return void
+     */
+    public function __construct(ScheduledNotification $scheduledNotification)
+    {
+        $this->scheduledNotification = $scheduledNotification;
+    }
+}

src/Models/ScheduledNotification.php

@@ -5,6 +5,7 @@
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Model;
 use Thomasjohnkane\Snooze\Events\NotificationInterrupted;
+use Thomasjohnkane\Snooze\Events\NotificationRescheduled;
 use Thomasjohnkane\Snooze\Events\NotificationSent;
 use Thomasjohnkane\Snooze\Exception\NotificationAlreadySentException;
 use Thomasjohnkane\Snooze\Exception\NotificationCancelledException;
@@ -66,6 +67,13 @@ public function send(): void
             return;
         }
 
+        if ($sendAt = $this->shouldRescheduleFor($notification, $notifiable)) {
+            $this->reschedule($sendAt);
+            event(new NotificationRescheduled($this));
+
+            return;
+        }
+
         $notifiable->notify($notification);
 
         $this->sent_at = Carbon::now();
@@ -96,6 +104,28 @@ public function shouldInterrupt(?object $notification = null, ?object $notifiabl
         return false;
     }
 
+    /**
+     * @param  object|null  $notification
+     * @param  object|null  $notifiable
+     * @return \DateTimeInterface|string|null
+     */
+    public function shouldRescheduleFor(?object $notification = null, ?object $notifiable = null)
+    {
+        if (! $notification) {
+            $notification = $this->serializer->unserialize($this->notification);
+        }
+
+        if (! $notifiable) {
+            $notifiable = $this->serializer->unserialize($this->target);
+        }
+
+        if (method_exists($notification, 'shouldRescheduleFor')) {
+            return $notification->shouldRescheduleFor($notifiable);
+        }
+
+        return null;
+    }
+
     /**
      * @return void
      *

src/ScheduledNotification.php

@@ -314,6 +314,14 @@ public function shouldInterrupt(): bool
         return $this->scheduleNotificationModel->shouldInterrupt();
     }
 
+    /**
+     * @return \DateTimeInterface|string|null
+     */
+    public function shouldRescheduleFor()
+    {
+        return $this->scheduleNotificationModel->shouldRescheduleFor();
+    }
+
     private static function getScheduledNotificationModelClass(): string
     {
         return config('snooze.model') ?? ScheduledNotificationModel::class;

tests/CanRescheduleNotificationTest.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Thomasjohnkane\Snooze\Tests;
+
+use Carbon\Carbon;
+use Illuminate\Support\Facades\Event;
+use Illuminate\Support\Facades\Notification;
+use Thomasjohnkane\Snooze\Events\NotificationRescheduled;
+use Thomasjohnkane\Snooze\Models\ScheduledNotification;
+use Thomasjohnkane\Snooze\Tests\Models\User;
+use Thomasjohnkane\Snooze\Tests\Notifications\TestReschedulableNotification;
+
+class CanRescheduleNotificationTest extends TestCase
+{
+    public function testNotificationIsRescheduled()
+    {
+        Notification::fake();
+        Event::fake();
+
+        // User id 1 should be interrupted
+        $target = User::find(1);
+        $notification = $target->notifyAt(new TestReschedulableNotification(User::find(2)), Carbon::now()->subSeconds(10));
+        $this->assertDatabaseHas('scheduled_notifications', ['id' => $notification->getId()]);
+
+        $this->artisan('snooze:send');
+
+        $notification->refresh();
+        $this->assertFalse($notification->isSent());
+        $this->assertFalse($notification->isCancelled());
+        $this->assertNotNull($notification->shouldRescheduleFor());
+
+        Notification::assertNothingSent();
+        Event::assertDispatched(NotificationRescheduled::class, 1);
+    }
+
+    public function testNotificationIsNotRescheduled()
+    {
+        Notification::fake();
+        Event::fake();
+
+        // User id 2 should NOT be rescheduled.
+        $target = User::find(2);
+
+        $notification = $target->notifyAt(new TestReschedulableNotification(User::find(2)), Carbon::now()->subSeconds(10));
+        $this->assertDatabaseHas('scheduled_notifications', ['id' => $notification->getId()]);
+        $this->artisan('snooze:send');
+
+        $notification->refresh();
+        $this->assertTrue($notification->isSent());
+        $this->assertFalse($notification->isCancelled());
+        $this->assertNull($notification->shouldRescheduleFor());
+    }
+
+    public function testInterruptMethodReceivesNotifiable()
+    {
+        $target = User::find(3);
+
+        $notificationMock = $this->createMock(TestReschedulableNotification::class);
+        $notificationMock
+            ->expects($this->once())
+            ->method('shouldRescheduleFor')
+            ->with($target)
+            ->willReturn(null);
+
+        $model = new ScheduledNotification();
+        $model->shouldRescheduleFor($notificationMock, $target);
+    }
+}

tests/Notifications/TestReschedulableNotification.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Thomasjohnkane\Snooze\Tests\Notifications;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Notifications\Messages\MailMessage;
+use Illuminate\Notifications\Notification;
+use Thomasjohnkane\Snooze\Tests\Models\User;
+
+class TestReschedulableNotification extends Notification implements ShouldQueue
+{
+    use Queueable;
+
+    /** @var User */
+    public $newUser;
+
+    /**
+     * @param  User  $newUser
+     */
+    public function __construct(User $newUser)
+    {
+        $this->newUser = $newUser;
+    }
+
+    /**
+     * Get the notification's channels.
+     *
+     * @param  mixed  $notifiable
+     * @return array|string
+     */
+    public function via($notifiable)
+    {
+        return ['mail'];
+    }
+
+    public function toMail($notifiable): MailMessage
+    {
+        return (new MailMessage)
+            ->subject('New User')
+            ->line(sprintf('Email: %s', $this->newUser->email));
+    }
+
+    public function shouldRescheduleFor(object $notifiable)
+    {
+        if ($notifiable->id === 1) {
+            return now()->addMinutes(5);
+        }
+
+        return null;
+    }
+}