Working on gateway fees

app/DataMapper/PaymentTransaction.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\DataMapper;
+
+class PaymentTransaction
+{
+
+	public $transaction_id;
+
+	public $gateway_response;
+
+	public $account_gateway_id;
+
+	public $payment_type_id;
+
+	public $status; // prepayment|payment|response|completed
+
+	public $invoices;
+
+}

app/Models/Client.php

@@ -183,10 +183,22 @@ class Client extends BaseModel
         $payment_methods_collections = collect($payment_methods);
         $payment_methods_intersect = $payment_methods_collections->intersectByKeys( $payment_methods_collections->flatten(1)->unique() );
 
-        $multiplied = $collection->map(function ($item, $key) {
+        $payment_list = $payment_methods_intersect->map(function ($value, $key) {
-            return $item * 2;
+
+            $gateway = $gateways->where('id', $key)->first();
+
+            $fee_label = $gateway->calcGatewayFee($amount, $this);
+
+            return [
+                'company_gateway_id' => $key,
+                'payment_method_id' => $value,
+                'url' => $label
+                'label' => ctrans('texts.'$gateway->type->alias) . $fee_label,
+            ];
+
         });
 
+
     }
 
 

app/Models/CompanyGateway.php

@@ -127,4 +127,19 @@ class CompanyGateway extends BaseModel
     {
         return ! empty($this->config('enablePayPal'));
     }
+
+    /**
+     * Returns the formatted fee amount for the gateway
+     *     
+     * @param  float $amount    The payment amount
+     * @param  Client $client   The client object
+     * @return string           The fee amount formatted in the client currency
+     */
+    public function calcGatewayFee($amount, Client $client) :string
+    {
+
+        $fee = '';
+
+    }
+    
 }