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<?php
namespace Common\Settings\Validators;
use Common\Settings\Settings;
use Config;
use GuzzleHttp\Exception\ServerException;
use Omnipay\Omnipay;
use Omnipay\PayPal\RestGateway;
use Illuminate\Support\Arr;
use GuzzleHttp\Exception\ClientException;
class PaypalCredentialsValidator implements SettingsValidator
{
const KEYS = [
'paypal_client_id',
'paypal_secret',
'paypal_webhook_id',
'billing.paypal_test_mode'
];
/**
* @var Settings
*/
private $settings;
/**
* @param Settings $settings
*/
public function __construct(Settings $settings)
{
$this->settings = $settings;
}
public function fails($settings)
{
$this->setConfigDynamically($settings);
// create gateway after setting config dynamically
// so gateway uses new configuration
$gateway = $this->createGateway();
try {
$response = $gateway->listPlan(
['pageSize' => 20, 'page' => 1, 'totalRequired' => 'yes']
)->send();
if ( ! $response->isSuccessful()) {
return $this->getErrorMessage($response->getData());
}
} catch (ClientException $e) {
return $this->getDefaultError();
} catch (ServerException $e) {
return $this->getDefaultError();
}
}
private function createGateway()
{
/** @var RestGateway $gateway */
$gateway = Omnipay::create('PayPal_Rest');
$gateway->initialize([
'clientId' => config('services.paypal.client_id'),
'secret' => config('services.paypal.secret'),
'testMode' => $this->settings->get('billing.paypal_test_mode'),
]);
return $gateway;
}
private function setConfigDynamically($settings)
{
foreach (self::KEYS as $key) {
if ( ! Arr::has($settings, $key)) continue;
if ($key === 'billing.paypal_test_mode') {
$this->settings->set('billing.paypal_test_mode', $settings[$key]);
} else {
// paypal_client_id => client_id
$configKey = str_replace('paypal_', '', $key);
Config::set("services.paypal.$configKey", $settings[$key]);
}
}
}
/**
* @param array $data
* @return array
*/
private function getErrorMessage($data)
{
$message = Arr::get($data, 'message');
if ($data['name'] === 'AUTHENTICATION_FAILURE') {
return ['paypal_group' => 'Paypal Client ID or Paypal Secret is invalid.'];
} else if ($message) {
$infoLink = Arr::get($data, 'information_link');
return ['paypal_group' => "$message. $infoLink"];
} else {
return $this->getDefaultError();
}
}
private function getDefaultError()
{
return ['paypal_group' => 'These paypal credentials are not valid.'];
}
}