From f88494f2dfaf133e81f1d72ffa564d3b5b67f3aa Mon Sep 17 00:00:00 2001
From: vblinden <vanderlindenv@transip.nl>
Date: Mon, 4 Oct 2021 11:41:46 +0200
Subject: [PATCH] Add feature was enabled event

---
 src/Write/Event/FeatureWasEnabled.php | 35 +++++++++++++++++++++++++++
 src/Write/Feature.php                 |  2 ++
 test/Write/FeatureTest.php            | 14 ++++++++---
 3 files changed, 48 insertions(+), 3 deletions(-)
 create mode 100644 src/Write/Event/FeatureWasEnabled.php

diff --git a/src/Write/Event/FeatureWasEnabled.php b/src/Write/Event/FeatureWasEnabled.php
new file mode 100644
index 0000000..edab2d1
--- /dev/null
+++ b/src/Write/Event/FeatureWasEnabled.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pheature\Core\Toggle\Write\Event;
+
+use Pheature\Core\Toggle\Write\FeatureId;
+use DatetimeImmutable;
+
+final class FeatureWasEnabled
+{
+    private string $featureId;
+    private DatetimeImmutable $occurredAt;
+
+    public function __construct(string $featureId, DatetimeImmutable $occurredAt)
+    {
+        $this->featureId = $featureId;
+        $this->occurredAt = $occurredAt;
+    }
+
+    public static function occur(string $featureId): self
+    {
+        return new self($featureId, new DatetimeImmutable());
+    }
+
+    public function featureId(): FeatureId
+    {
+        return FeatureId::fromString($this->featureId);
+    }
+
+    public function occurredAt(): DatetimeImmutable
+    {
+        return $this->occurredAt;
+    }
+}
diff --git a/src/Write/Feature.php b/src/Write/Feature.php
index b778da5..1916ae5 100644
--- a/src/Write/Feature.php
+++ b/src/Write/Feature.php
@@ -4,6 +4,7 @@
 
 namespace Pheature\Core\Toggle\Write;
 
+use Pheature\Core\Toggle\Write\Event\FeatureWasEnabled;
 use Pheature\Core\Toggle\Write\Event\FeatureWasDisabled;
 use Pheature\Core\Toggle\Write\Event\FeatureWasCreated;
 use JsonSerializable;
@@ -68,6 +69,7 @@ public function removeStrategy(StrategyId $strategyId): void
     public function enable(): void
     {
         $this->enabled = true;
+        $this->events[] = FeatureWasEnabled::occur($this->featureId->value());
     }
 
     public function disable(): void
diff --git a/test/Write/FeatureTest.php b/test/Write/FeatureTest.php
index ca926d8..1e6db5a 100644
--- a/test/Write/FeatureTest.php
+++ b/test/Write/FeatureTest.php
@@ -5,6 +5,7 @@
 namespace Pheature\Test\Core\Toggle\Write;
 
 use Pheature\Core\Toggle\Write\Event\FeatureWasDisabled;
+use Pheature\Core\Toggle\Write\Event\FeatureWasEnabled;
 use Pheature\Core\Toggle\Write\Feature;
 use Pheature\Core\Toggle\Write\FeatureId;
 use Pheature\Core\Toggle\Write\Strategy;
@@ -53,7 +54,11 @@ public function testItShouldBeEnabled(): void
         $feature->enable();
         $this->assertTrue($feature->isEnabled());
         $events = $feature->release();
-        $this->assertCount(1, $events); // Released FeatureWasCreated event
+        $this->assertCount(2, $events); // Released FeatureWasCreated event and FeatureWasEnabled event
+        $featureWasEnabledEvent = $events[1];
+        $this->assertInstanceOf(FeatureWasEnabled::class, $featureWasEnabledEvent);
+        $this->assertSame(self::FEATURE_ID, $featureWasEnabledEvent->featureId()->value());
+        $this->assertInstanceOf(DatetimeImmutable::class, $featureWasEnabledEvent->occurredAt());
     }
 
     public function testItShouldBeDisabled(): void
@@ -63,8 +68,11 @@ public function testItShouldBeDisabled(): void
         $feature->disable();
         $this->assertFalse($feature->isEnabled());
         $events = $feature->release();
-        $this->assertCount(2, $events); // Released FeatureWasCreated event and FeatureWasDisabled event
-        $featureWasDisabledEvent = $events[1];
+        // Released FeatureWasCreated event,
+        //          FeatureWasEnabled event,
+        //          FeatureWasDisabled event
+        $this->assertCount(3, $events);
+        $featureWasDisabledEvent = $events[2];
         $this->assertInstanceOf(FeatureWasDisabled::class, $featureWasDisabledEvent);
         $this->assertSame(self::FEATURE_ID, $featureWasDisabledEvent->featureId()->value());
         $this->assertInstanceOf(DatetimeImmutable::class, $featureWasDisabledEvent->occurredAt());