Merge pull request #8 from Safemood/events-tracking

Events tracking

config/discountify.php

@@ -9,4 +9,5 @@
     ],
     'global_discount' => 0,
     'global_tax_rate' => 0,
+    'fire_events' => env('DISCOUNTIFY_FIRE_EVENTS', true),
 ];

src/Discountify.php

@@ -5,6 +5,7 @@
 use Safemood\Discountify\Concerns\HasCalculations;
 use Safemood\Discountify\Concerns\HasDynamicFields;
 use Safemood\Discountify\Contracts\DiscountifyInterface;
+use Safemood\Discountify\Events\DiscountAppliedEvent;
 
 /**
  * Class Discountify
@@ -66,6 +67,10 @@ public function evaluateConditions(): float
             function ($discount, $condition) {
                 $result = is_callable($condition['condition']) ? $condition['condition']($this->items) : $condition['condition'];
 
+                if (config('discountify.fire_events')) {
+                    event(new DiscountAppliedEvent($condition['slug'], $condition['discount'], $condition['condition']));
+                }
+
                 return $discount + match (true) {
                     $result === true => $this->calculateSubtotal() * ($condition['discount'] / 100),
                     default => $condition['discount'],

src/Events/DiscountAppliedEvent.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Safemood\Discountify\Events;
+
+class DiscountAppliedEvent
+{
+    public function __construct(
+        public string $slug,
+        public int $discount,
+        public mixed $condition
+    ) {
+    }
+}

tests/DiscountifyTest.php

@@ -1,9 +1,11 @@
 <?php
 
 use Illuminate\Support\Facades\Config;
+use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\File;
 use Safemood\Discountify\ConditionManager;
 use Safemood\Discountify\Discountify;
+use Safemood\Discountify\Events\DiscountAppliedEvent;
 use Safemood\Discountify\Exceptions\DuplicateSlugException;
 use Safemood\Discountify\Facades\Condition;
 use Safemood\Discountify\Facades\Discountify as DiscountifyFacade;
@@ -332,3 +334,31 @@
 
     $this->assertFalse(File::exists($filePath));
 });
+
+it('fires the DiscountAppliedEvent when conditions are met and event firing is enabled', function () {
+    Event::fake();
+
+    Config::set('discountify.fire_events', true);
+
+    Condition::define('test_condition', fn () => true, 10);
+
+    DiscountifyFacade::setItems($this->items);
+
+    DiscountifyFacade::total();
+
+    Event::assertDispatched(DiscountAppliedEvent::class);
+});
+
+it('does not fire the DiscountAppliedEvent when event firing is disabled', function () {
+    Event::fake();
+
+    Config::set('discountify.fire_events', false);
+
+    Condition::define('test_condition', fn () => true, 10);
+
+    DiscountifyFacade::setItems($this->items);
+
+    DiscountifyFacade::total();
+
+    Event::assertNotDispatched(DiscountAppliedEvent::class);
+});