From de1717893a825ac2746a4f7fbfd95d8bbbea0a06 Mon Sep 17 00:00:00 2001
From: Chris Lloyd <chrislloyd403@gmail.com>
Date: Thu, 10 Aug 2023 09:14:05 +0100
Subject: [PATCH] Filter out abstract event handlers

---
 src/Support/DiscoverEventHandlers.php                    | 2 ++
 .../AutoDiscoverEventHandlers/AbstractProjector.php      | 9 +++++++++
 .../AutoDiscoverEventHandlers/AbstractReactor.php        | 9 +++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 tests/TestClasses/AutoDiscoverEventHandlers/AbstractProjector.php
 create mode 100644 tests/TestClasses/AutoDiscoverEventHandlers/AbstractReactor.php

diff --git a/src/Support/DiscoverEventHandlers.php b/src/Support/DiscoverEventHandlers.php
index 151de93b..7a713da4 100644
--- a/src/Support/DiscoverEventHandlers.php
+++ b/src/Support/DiscoverEventHandlers.php
@@ -4,6 +4,7 @@
 
 use Illuminate\Support\Collection;
 use Illuminate\Support\Str;
+use ReflectionClass;
 use Spatie\EventSourcing\EventHandlers\EventHandler;
 use Spatie\EventSourcing\Projectionist;
 use SplFileInfo;
@@ -64,6 +65,7 @@ public function addToProjectionist(Projectionist $projectionist)
             ->reject(fn (SplFileInfo $file) => in_array($file->getPathname(), $this->ignoredFiles))
             ->map(fn (SplFileInfo $file) => $this->fullQualifiedClassNameFromFile($file))
             ->filter(fn (string $eventHandlerClass) => is_subclass_of($eventHandlerClass, EventHandler::class))
+            ->filter(fn (string $eventHandlerClass) => (new ReflectionClass($eventHandlerClass))->isInstantiable())
             ->pipe(function (Collection $eventHandlers) use ($projectionist) {
                 $projectionist->addEventHandlers($eventHandlers->toArray());
             });
diff --git a/tests/TestClasses/AutoDiscoverEventHandlers/AbstractProjector.php b/tests/TestClasses/AutoDiscoverEventHandlers/AbstractProjector.php
new file mode 100644
index 00000000..e33c57c1
--- /dev/null
+++ b/tests/TestClasses/AutoDiscoverEventHandlers/AbstractProjector.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Spatie\EventSourcing\Tests\TestClasses\AutoDiscoverEventHandlers;
+
+use Spatie\EventSourcing\EventHandlers\Projectors\Projector;
+
+abstract class AbstractProjector extends Projector
+{
+}
diff --git a/tests/TestClasses/AutoDiscoverEventHandlers/AbstractReactor.php b/tests/TestClasses/AutoDiscoverEventHandlers/AbstractReactor.php
new file mode 100644
index 00000000..88110722
--- /dev/null
+++ b/tests/TestClasses/AutoDiscoverEventHandlers/AbstractReactor.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Spatie\EventSourcing\Tests\TestClasses\AutoDiscoverEventHandlers;
+
+use Spatie\EventSourcing\EventHandlers\Reactors\Reactor;
+
+abstract class AbstractReactor extends Reactor
+{
+}