fix(purchase): unify expired checkout errors

app/Domains/Purchase/Services/PurchaseStateGuard.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Domains\Purchase\Services;
+
+use App\Domains\Purchase\Exceptions\PurchaseExpiredException;
+use App\Domains\Purchase\Models\Purchase;
+
+class PurchaseStateGuard
+{
+    public function assertNotExpired(Purchase $purchase): void
+    {
+        $hasExpiredStatus = $purchase->status === Purchase::STATUS_EXPIRED;
+        $hasExpiredByTime = in_array($purchase->status, [
+            Purchase::STATUS_CREATED,
+            Purchase::STATUS_PENDING_PAYMENT,
+        ], true)
+            && $purchase->expires_at !== null
+            && $purchase->expires_at->isPast();
+
+        if ($hasExpiredStatus || $hasExpiredByTime) {
+            throw new PurchaseExpiredException;
+        }
+    }
+}