first commit

common/Settings/Validators/PaypalCredentialsValidator.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace Common\Settings\Validators;
+
+use Common\Billing\Gateways\Paypal\Paypal;
+use Common\Settings\Settings;
+use Config;
+use GuzzleHttp\Exception\ClientException;
+use Illuminate\Support\Arr;
+
+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 = $settings;
+    }
+
+    public function fails($values)
+    {
+        $this->setConfigDynamically($values);
+
+        // create gateway after setting config dynamically
+        // so gateway uses new configuration
+
+        try {
+            $response = app(Paypal::class)
+                ->paypal()
+                ->get('payments/billing-plans');
+            if (!$response->successful()) {
+                return $this->getErrorMessage($response->body());
+            }
+        } catch (ClientException $e) {
+            return $this->getDefaultError();
+        }
+    }
+
+    private function setConfigDynamically($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 ($data['name'] === 'AUTHENTICATION_FAILURE') {
+            return [
+                'paypal_group' =>
+                    'Paypal Client ID or Paypal Secret is invalid.',
+            ];
+        } elseif ($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.'];
+    }
+}