add sandbox method

and remove services.zarinpal.driver
it now can be changed from DriverInterface::class singleton

src/Drivers/DriverInterface.php

@@ -38,4 +38,9 @@ public function verifyWithExtra($inputs);
      * @return array
      */
     public function setAddress($inputs);
+
+    /**
+     * activate sandbox mod for dev environment
+     */
+    public function enableSandbox();
 }

src/Drivers/RestDriver.php

@@ -155,4 +155,9 @@ public function setAddress($baseUrl)
     {
         $this->baseUrl = $baseUrl;
     }
+
+    public function enableSandbox()
+    {
+        $this->setAddress('https://sandbox.zarinpal.com/pg/rest/WebGate/');
+    }
 }

src/Laravel/ZarinpalServiceProvider.php

@@ -3,38 +3,33 @@
 namespace Zarinpal\Laravel;
 
 use Illuminate\Support\ServiceProvider;
-use Zarinpal\Drivers\NuSoap;
-use Zarinpal\Drivers\NuSoapDriver;
+use Zarinpal\Drivers\DriverInterface;
 use Zarinpal\Drivers\RestDriver;
-use Zarinpal\Drivers\Soap;
-use Zarinpal\Drivers\SoapDriver;
 use Zarinpal\Zarinpal;
 
 class ZarinpalServiceProvider extends ServiceProvider
 {
     /**
      * Register the service provider.
      *
-     * @return \Zarinpal\Zarinpal
+     * @return void
      */
     public function register()
     {
+        $this->app->singleton(DriverInterface::class, function () {
+            return new RestDriver();
+        });
+
         $this->app->singleton('Zarinpal', function () {
             $merchantID = config('services.zarinpal.merchantID', config('Zarinpal.merchantID', 'XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX'));
-            $driver = config('services.zarinpal.driver', config('Zarinpal.driver', 'Rest'));
-            switch ($driver) {
-                case 'Soap':
-                    $driver = new SoapDriver();
-                    break;
-                case 'NuSoap':
-                    $driver = new NuSoapDriver();
-                    break;
-                default:
-                    $driver = new RestDriver();
-                    break;
+
+            $zarinpal = new Zarinpal($merchantID, $this->app->make(DriverInterface::class));
+
+            if(config('services.zarinpal.sandbox',false)){
+                $zarinpal->enableSandbox();
             }
 
-            return new Zarinpal($merchantID, $driver);
+            return $zarinpal;
         });
     }
 

src/Zarinpal.php

@@ -93,4 +93,11 @@ public function getDriver()
     {
         return $this->driver;
     }
+
+    /**
+     */
+    public function enableSandbox()
+    {
+        return $this->getDriver()->enableSandbox();
+    }
 }

test/RestTestCase.php

@@ -10,7 +10,7 @@ class RestTestCase extends \PHPUnit\Framework\TestCase
     public function __construct($name = null, array $data = [], $dataName = '')
     {
         $this->zarinpal = new Zarinpal('XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX');
-        $this->zarinpal->getDriver()->setAddress('https://sandbox.zarinpal.com/pg/rest/WebGate/');
+        $this->zarinpal->enableSandbox();
 
         parent::__construct($name, $data, $dataName);
     }