full list of changes below [WiP]

- move subscribers to outside event bus (making it subscription itself)
- when unit of work is committed store all events from all registered aggregates at once

Author: alanbem

src/Infrastructure/Application/Listener/Subscriber.php

@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * This file is part of the streak package.
+ *
+ * (C) Alan Gabriel Bem <alan.bem@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Streak\Infrastructure\Application\Listener;
+
+use Doctrine\DBAL\Connection;
+use Streak\Domain;
+use Streak\Domain\Event;
+use Streak\Domain\Event\Listener;
+
+class Subscriber implements Event\Listener
+{
+    use Event\Listener\Filtering;
+    use Event\Listener\Identifying;
+    use Event\Listener\Listening;
+    use Query\Handling;
+
+    public function __construct(Subscriber\Id $id)
+    {
+        $this->identifyBy($id);
+    }
+
+    public function listenerId(): Subscriber\Id
+    {
+        return $this->id;
+    }
+
+    public function on(Envelope $event): bool
+    {
+
+    }
+}

src/Infrastructure/Application/Listener/Subscriber/Id.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * This file is part of the streak package.
+ *
+ * (C) Alan Gabriel Bem <alan.bem@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Streak\Infrastructure\Application\Listener\Subscriber;
+
+use Streak\Domain\Event\Listener;
+
+/**
+ * @see \Printify\Tests\Invoices\Application\Projectors\InvoicesList\Projector\IdTest
+ */
+final class Id implements Listener\Id
+{
+    private const ID = '00000000-0000-0000-0000-000000000000';
+
+    public function equals(object $id): bool
+    {
+        if (!$id instanceof self) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public function toString(): string
+    {
+        return self::ID;
+    }
+
+    public static function fromString(string $id): self
+    {
+        return new self();
+    }
+}

src/Infrastructure/Domain/UnitOfWork/EventStoreUnitOfWork.php

@@ -104,25 +104,30 @@ public function commit(): \Generator
             $this->committing = true;
 
             try {
+                $events = [];
+                $producers = [];
                 /** @var Event\Producer $producer */
                 while ($producer = array_shift($this->uncommited)) {
-                    try {
-                        $this->store->add(...$producer->events()); // maybe gather all events and send them in one single EventStore:add() call?
-
-                        if ($producer instanceof Domain\Versionable) {
-                            $producer->commit();
-                        }
-
-                        yield $producer;
-                    } catch (ConcurrentWriteDetected $e) {
-                        // version must be wrong so nothing good if we retry it later on...
-                        throw $e;
-                    } catch (\Exception $e) {
-                        // something unexpected occurred, so lets leave uow in state from just before it happened - we may like to retry it later...
-                        array_unshift($this->uncommited, $producer);
-
-                        throw $e;
+                    $producers[] = $producer;
+                    $events = [...$events, ...$producer->events()];
+                }
+
+                try {
+                    $this->store->add(...$events);
+                } catch (ConcurrentWriteDetected $e) {
+                    // version must be wrong so nothing good if we retry it later on...
+                    throw $e;
+                } catch (\Exception $e) {
+                    // something unexpected occurred, so lets leave uow in state from just before it happened - we may like to retry it later...
+                    array_unshift($this->uncommited, ...$producers);
+                    throw $e;
+                }
+
+                foreach ($producers as $producer) {
+                    if ($producer instanceof Domain\Versionable) {
+                        $producer->commit();
                     }
+                    yield $producer;
                 }
 
                 $this->clear();