Refactor SubscriptionBuilder and ManagesSubscriptions to use string for plan parameter instead of Model

Author: veeqtoh

src/Classes/SubscriptionBuilder.php

@@ -5,7 +5,6 @@
 namespace Veeqtoh\Cashier\Classes;
 
 use Carbon\Carbon;
-use Illuminate\Database\Eloquent\Model;
 use Veeqtoh\Cashier\Exceptions\FailedToCreateSubscription;
 use Veeqtoh\Cashier\Models\Subscription;
 use Veeqtoh\Cashier\Services\PaystackService;
@@ -37,12 +36,12 @@ class SubscriptionBuilder
      * Create a new subscription builder instance.
      *
      * @param mixed  $owner The model that is subscribing.
-     * @param Model  $plan  The model instance of the plan being subscribed to.
+     * @param string $plan  The name of the plan being subscribed to.
      * @param string $name  The name of the subscription.
      *
      * @return void
      */
-    public function __construct(protected mixed $owner, protected Model $plan, protected string $name)
+    public function __construct(protected mixed $owner, protected string $plan, protected string $name)
     {
         //
     }
@@ -82,7 +81,7 @@ public function add(array $options = []): Subscription
             'name'          => $this->name,
             'paystack_id'   => $options['id'],
             'paystack_code' => $options['subscription_code'],
-            'paystack_plan' => $this->plan->plan_code,
+            'paystack_plan' => $this->plan,
             'quantity'      => 1,
             'trial_ends_at' => $trialEndsAt,
             'ends_at'       => null,
@@ -92,13 +91,13 @@ public function add(array $options = []): Subscription
     /**
      * Charge for a Paystack subscription.
      */
-    public function charge(array $options = []): mixed
+    public function charge(int $amount, array $options = []): mixed
     {
         $options = array_merge([
-            'plan' => $this->plan->plan_code
+            'plan' => $this->plan
         ], $options);
 
-        return $this->owner->charge($this->plan->price, $options);
+        return $this->owner->charge($amount, $options);
     }
 
     /**
@@ -137,7 +136,7 @@ protected function getSubscriptionPayload(array $customer, array $options = []):
 
         return [
             'customer'   => $customer['customer_code'], // Customer email or code
-            'plan'       => $this->plan->plan_code,
+            'plan'       => $this->plan,
             'start_date' => $startDate->format('c'),
         ];
     }

src/Concerns/ManagesSubscriptions.php

@@ -5,7 +5,6 @@
 namespace Veeqtoh\Cashier\Concerns;
 
 use Carbon\Carbon;
-use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Unicodeveloper\Paystack\Facades\Paystack;
 use Veeqtoh\Cashier\Classes\SubscriptionBuilder;
@@ -18,7 +17,7 @@ trait ManagesSubscriptions
     /**
      * Begin creating a new subscription.
      */
-    public function newSubscription(Model $plan, string $subscription = 'default'): SubscriptionBuilder
+    public function newSubscription(string $plan, string $subscription = 'default'): SubscriptionBuilder
     {
         return new SubscriptionBuilder($this, $plan, $subscription);
     }