implements #337 by enabling privacy strings translation

implements #337 by adding woocommerce privacy strings to the Polylang
strings translation table

src/Hyyan/WPI/Plugin.php

@@ -189,6 +189,7 @@ protected function registerCore()
         new Taxonomies\Taxonomies();
         new Media();
         new Permalinks();
+        new Privacy();
         new Language();
         new Coupon();
         new Reports();

src/Hyyan/WPI/Privacy.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * This file is part of the hyyan/woo-poly-integration plugin.
+ * (c) Hyyan Abo Fakher <hyyanaf@gmail.com>.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Hyyan\WPI;
+
+/**
+ * Privacy.
+ *
+ */
+class Privacy
+{
+
+    /**
+     * Construct initiated on init by Plugin.php
+     */
+    public function __construct()
+    {
+        $this->registerPrivacyStrings();
+        add_filter('woocommerce_get_privacy_policy_text', array($this, 'translatePrivacyPolicyText'), 10, 2);
+    }
+
+    /**
+     * Register woocommerce privacy policy messages in polylang strings
+     * translations table.
+     */
+    public function registerPrivacyStrings()
+    {
+        $this->registerString('woocommerce_checkout_privacy_policy_text', get_option('woocommerce_checkout_privacy_policy_text', sprintf(__('Your personal data will be used to process your order, support your experience throughout this website, and for other purposes described in our %s.', 'woocommerce'), '[privacy_policy]')));
+        $this->registerString('woocommerce_registration_privacy_policy_text', get_option('woocommerce_registration_privacy_policy_text', sprintf(__('Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our %s.', 'woocommerce'), '[privacy_policy]')));
+    }
+
+
+    /**
+     * Register setting and value in polylang strings translations table.
+     * 
+     * @param string   $setting     Name of setting/string to translate
+     * @param string   $value       Value in base language
+     */
+    private function registerString($setting, $value)
+    {
+        if (function_exists('pll_register_string')) {
+            pll_register_string($setting, $value, __('WooCommerce Privacy', 'woo-poly-integration'), true);
+        }
+    }
+
+    /**
+     * Register setting and value in polylang strings translations table.
+     * 
+     * @param string   $text        Text to be translated
+     * @param string   $type        Name of privacy policy type 'checkout' or ‘registration’
+     */
+    public function translatePrivacyPolicyText($text, $type)
+    {
+        if (function_exists('pll_register_string')) {
+            $trans = pll__($text);
+            return ($trans) ? $trans : $text;
+        }
+    }
+}