Working on unattended token billing

app/Models/ClientGatewayToken.php

@@ -44,7 +44,7 @@ class ClientGatewayToken extends BaseModel
 
     public function gateway()
     {
-        return $this->belongsTo(CompanyGateway::class);
+        return $this->hasOne(CompanyGateway::class, 'id', 'company_gateway_id');
     }
 
     public function gateway_type()

app/PaymentDrivers/AuthorizePaymentDriver.php

@@ -136,4 +136,7 @@ class AuthorizePaymentDriver extends BaseDriver
                                  ->where('company_gateway_id', $this->company_gateway->id)
                                  ->first();
     }
+
+    public function tokenBilling(ClientGatewayToken $cgt, float $amount) {}
+
 }

app/PaymentDrivers/BaseDriver.php

@@ -13,6 +13,7 @@
 namespace App\PaymentDrivers;
 
 use App\Models\Client;
+use App\Models\ClientGatewayToken;
 use App\Models\CompanyGateway;
 use App\Models\Invoice;
 use App\Models\Payment;
@@ -48,6 +49,7 @@ class BaseDriver extends AbstractPaymentDriver
     /* The client */
     public $client;
 
+    /* The initiated gateway driver class*/
     public $payment_method;
 
     public static $methods = [];
@@ -117,4 +119,13 @@ class BaseDriver extends AbstractPaymentDriver
 
         return $payment;
     }
+
+    /**
+     * Process an unattended payment
+     * 
+     * @param  ClientGatewayToken $cgt    the client gateway token object
+     * @param  float              $amount the amount to bill
+     * @return Response           The payment response
+     */
+    public function tokenBilling(ClientGatewayToken $cgt, float $amount) {}
 }

app/PaymentDrivers/CheckoutComPaymentDriver.php

@@ -311,4 +311,7 @@ class CheckoutComPaymentDriver extends BasePaymentDriver
             ];
         }
     }
+
+    public function tokenBilling(ClientGatewayToken $cgt, float $amount) {}
+
 }

app/PaymentDrivers/StripePaymentDriver.php

@@ -366,5 +366,7 @@ class StripePaymentDriver extends BasePaymentDriver
         return response([], 200);
     }
 
-    /************************************** Omnipay API methods **********************************************************/
+    public function tokenBilling(ClientGatewayToken $cgt, float $amount) {}
+
+
 }

app/Services/Invoice/AutoBillInvoice.php

@@ -11,6 +11,7 @@
 
 namespace App\Services\Invoice;
 
+use App\DataMapper\InvoiceItem;
 use App\Events\Payment\PaymentWasCreated;
 use App\Factory\PaymentFactory;
 use App\Models\Client;
@@ -38,20 +39,30 @@ class AutoBillInvoice extends AbstractService
     public function run()
     {
 
-        if(!$invoice->isPayable())
+        if(!$this->invoice->isPayable())
-            return $invoice;
+            return $this->invoice;
 
+        if($this->invoice->balance > 0)
+            $gateway_token = $this->getGateway($this->invoice->balance);
+        else
+            return $this->invoice->service()->markPaid()->save();
 
+        $fee = $gateway_token->gateway->calcGatewayFee($this->invoice->balance);
+
+        if($fee > 0)
+            $this->addFeeToInvoice($fee);
+
+        $response = $gateway_token->gateway->driver($this->client)->tokenBilling($gateway_token, $amount);
+
+        //if response was successful, toggle the fee type_id to paid
     }
 
     private function getGateway($amount)
     {
-        
-        $gateway_tokens = $this->client->gateway_tokens->orderBy('is_default', 'DESC');
 
-        $billing_gateway_token = null;
+        $gateway_tokens = $this->client->gateway_tokens()->orderBy('is_default', 'DESC');
 
-        $gateway_tokens->filter(function ($token) use ($amount){
+        return $gateway_tokens->filter(function ($token) use ($amount){
 
             return $this->validGatewayLimits($token, $amount);
 
@@ -59,6 +70,25 @@ class AutoBillInvoice extends AbstractService
 
     }
 
+    private function addFeeToInvoice(float $fee)
+    {
+        $item = new InvoiceItem;
+        $item->quantity = 1;
+        $item->cost = $fee;
+        $item->notes = ctrans('texts.online_payment_surcharge');
+        $item->type_id = 3;
+
+        $items = (array)$this->invoice->line_items;
+        $items[] = $item;
+
+        $this->invoice->line_items = $items;
+        $this->invoice->save();
+
+        $this->invoice = $this->invoice->calc()->getInvoice()->save();
+
+        return $this;
+    }
+
     /**
      * Checks whether a given gateway token is able
      * to process the payment after passing through the