Add enabled config

Author: naimsolong

config/data-extractor.php

@@ -5,7 +5,7 @@
 use Illuminate\Foundation\Auth\User;
 
 return [
-    'allow_production' => env('DATA_EXTRACTOR_PRODUCTION', false),
+    'is_enabled' => env('DATA_EXTRACTOR_ENABLED', false),
 
     'instructions' => [
         [

src/Extract.php

@@ -17,6 +17,10 @@ class Extract
 
     public function __construct()
     {
+        if(!config('data-extractor.is_enabled')) {
+            throw new Exception('Data Extractor is not enabled. Please check your configuration.');
+        }
+
         $this->builder = new ExtractBuilder;
     }