<?php
 /**
  * A simple example that shows how to use multiple providers, opening provider authentication in a pop-up.
  */
 
 use Hybridauth\Hybridauth;
 
 require CONFIG_PATH . DIRECTORY_SEPARATOR . "authentification-config-example.php";
 
 try {
 
     $hybridauth = new Hybridauth\Hybridauth($config);
     $storage = new Hybridauth\Storage\Session();
     $error = false;
 
     //
     // Event 1: User clicked SIGN-IN link
     //
     if (isset($url_params['provider'])) {
         // Validate provider exists in the $config
         if (in_array($url_params['provider'], $hybridauth->getProviders())) {
             // Store the provider for the callback event
             $storage->set('provider', $_GET['provider']);
         } else {
             $error = $_GET['provider'];
         }
     }
 
     //
     // Event 2: User clicked LOGOUT link
     //
     if (isset($url_params['logout'])) {
         if (in_array($url_params['logout'], $hybridauth->getProviders())) {
             // Disconnect the adapter
             $adapter = $hybridauth->getAdapter($url_params['logout']);
             $adapter->disconnect();
         } else {
             $error = $url_params['logout'];
         }
     }
 
     //
     // Handle invalid provider errors
     //
     if ($error) {
         error_log('HybridAuth Error: Provider ' . json_encode($error) . ' not found or not enabled in $config');
         // Close the pop-up window
         echo "
             <script>
                 window.opener.location.reload();
                 window.close();
             </script>";
         exit;
     }
 
     //
     // Event 3: Provider returns via CALLBACK
     //
     if ($provider = $storage->get('provider')) {
 
         $hybridauth->authenticate($provider);
         $storage->set('provider', null);
 
         // Retrieve the provider record
         $adapter = $hybridauth->getAdapter($provider);
         $userProfile = $adapter->getUserProfile();
         $accessToken = $adapter->getAccessToken();
 
         // Close pop-up window
         echo "
             <script>
                 window.opener.location.reload();
                 window.close();
             </script>";
 
     }
 
 } catch (Exception $e) {
     error_log($e->getMessage());
     echo $e->getMessage();
 }