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wp-content/plugins/przelewy24/includes/multi_currency/class-p24-mc-external-none.php

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+<?php
+/**
+ * File that define P24_External_Multi_Currency class.
+ *
+ * @package Przelewy24
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Class with support for external multi currency.
+ */
+class P24_MC_External_None implements P24_MC_Interface {
+
+	/**
+	 * Check if external multi currency is activated.
+	 *
+	 * This one is always inactive.
+	 *
+	 * @return bool
+	 */
+	public function is_multi_currency_active() {
+		return false;
+	}
+
+	/**
+	 * Check if multi currency is internal.
+	 *
+	 * @return bool
+	 */
+	public function is_internal() {
+		 return false;
+	}
+
+	/**
+	 * Get list of available currencies.
+	 *
+	 * @return array
+	 */
+	public function get_available_currencies() {
+		return array();
+	}
+
+	/**
+	 * Get name.
+	 *
+	 * @return string
+	 */
+	public function get_name() {
+		return '';
+	}
+}

wp-content/plugins/przelewy24/includes/multi_currency/class-p24-mc-external-wpml.php

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+<?php
+/**
+ * File that define P24_External_Multi_Currency class.
+ *
+ * @package Przelewy24
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Class with support for external multi currency.
+ */
+class P24_MC_External_WPML implements P24_MC_Interface {
+
+	/**
+	 * Get wpml settings.
+	 *
+	 * @return array
+	 */
+	private static function get_wpml_settings() {
+		global $woocommerce_wpml;
+		if ( $woocommerce_wpml ) {
+			if ( isset( $woocommerce_wpml->settings['currencies_order'] ) ) {
+				return $woocommerce_wpml->settings['currencies_order'];
+			}
+		}
+
+		return array();
+	}
+
+	/**
+	 * Try create instance.
+	 *
+	 * @return null|P24_MC_External_WPML
+	 */
+	public static function try_create() {
+		$settings = self::get_wpml_settings();
+		if ( $settings ) {
+			return new self();
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Check if external multi currency is activated.
+	 *
+	 * @return bool
+	 */
+	public function is_multi_currency_active() {
+		$settings = self::get_wpml_settings();
+
+		return (bool) $settings;
+	}
+
+	/**
+	 * Check if multi currency is internal.
+	 *
+	 * @return bool
+	 */
+	public function is_internal() {
+		 return false;
+	}
+
+	/**
+	 * Get list of available currencies.
+	 *
+	 * @return array
+	 */
+	public function get_available_currencies() {
+		$settings = self::get_wpml_settings();
+
+		return array_combine( $settings, $settings );
+	}
+
+	/**
+	 * Get name.
+	 *
+	 * @return string
+	 */
+	public function get_name() {
+		return 'WPML';
+	}
+}

wp-content/plugins/przelewy24/includes/multi_currency/class-p24-mc-interface.php

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+<?php
+/**
+ * File that define P24_External_Multi_Currency class.
+ *
+ * @package Przelewy24
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Class with support for external multi currency.
+ */
+interface P24_MC_Interface {
+
+	/**
+	 * Check if external multi currency is activated.
+	 *
+	 * @return bool
+	 */
+	public function is_multi_currency_active();
+
+	/**
+	 * Check if multi currency is internal.
+	 *
+	 * @return bool
+	 */
+	public function is_internal();
+
+	/**
+	 * Get list of available currencies.
+	 *
+	 * @return array
+	 */
+	public function get_available_currencies();
+
+	/**
+	 * Get name of multi currency implementation.
+	 *
+	 * @return string
+	 */
+	public function get_name();
+}

wp-content/plugins/przelewy24/includes/multi_currency/class-p24-mc-pool.php

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+<?php
+/**
+ * File that define P24_MC_Pool class.
+ *
+ * @package Przelewy24
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Class that pool all multi currency support.
+ */
+class P24_MC_Pool {
+
+	/**
+	 * Instance of core of plugin.
+	 *
+	 * @var P24_Core
+	 */
+	private $plugin_core;
+
+	/**
+	 * External multi currency proxy.
+	 *
+	 * @var P24_MC_Interface|null
+	 */
+	private $external = null;
+
+	/**
+	 * Active currency.
+	 *
+	 * @var string|null
+	 */
+	private $active_currency = null;
+
+	/**
+	 * P24_MC_Pool constructor.
+	 *
+	 * @param P24_Core $plugin_core Instance of main plugin.
+	 */
+	public function __construct( P24_Core $plugin_core ) {
+		$this->plugin_core = $plugin_core;
+	}
+
+	/**
+	 * Set_active_currency.
+	 *
+	 * @param string $currency Currency.
+	 */
+	public function set_active_currency( $currency ) {
+		$this->active_currency = $currency;
+	}
+
+	/**
+	 * Get external Multi Currency proxy.
+	 *
+	 * @return P24_MC_Interface
+	 */
+	public function get_external_mc() {
+		if ( ! $this->external ) {
+			$wpml = P24_MC_External_WPML::try_create();
+			if ( $wpml && $wpml->is_multi_currency_active() ) {
+				$this->external = $wpml;
+			} else {
+				$this->external = new P24_MC_External_None();
+			}
+		}
+
+		return $this->external;
+	}
+
+	/**
+	 * Get preffered Multi Currency proxy.
+	 *
+	 * @return P24_MC_Interface|null
+	 */
+	public function get_preffered_mc() {
+		if ( $this->plugin_core->is_internal_multi_currency_active() ) {
+			$mc = $this->plugin_core->get_multi_currency_instance();
+		} else {
+			$mc = $this->get_external_mc();
+		}
+
+		return $mc;
+	}
+
+	/**
+	 * Method for filter that change default currency.
+	 *
+	 * The default value is ignored.
+	 * The wrapped function should always return something.
+	 *
+	 * @param string|null $default Default value provided by filter.
+	 * @return string|null
+	 */
+	public function check_admin_currency( $default ) {
+		if ( ! $this->active_currency ) {
+			$mc        = $this->get_preffered_mc();
+			$available = $mc->get_available_currencies();
+			wp_verify_nonce( null ); /* There is no noce. */
+			if ( $this->plugin_core->is_in_json_mode() ) {
+				if ( array_key_exists( P24_Request_Support::WP_JSON_GET_KEY_CURRENCY, $_GET ) ) {
+					$this->active_currency = sanitize_text_field( wp_unslash( $_GET[ P24_Request_Support::WP_JSON_GET_KEY_CURRENCY ] ) );
+				}
+			} else {
+				if ( isset( $_COOKIE['admin_p24_currency'] ) ) {
+					$this->active_currency = sanitize_text_field( wp_unslash( $_COOKIE['admin_p24_currency'] ) );
+				}
+			}
+
+			if ( ! $this->active_currency || ! array_key_exists( $this->active_currency, $available ) ) {
+				$this->active_currency = P24_Woo_Commerce_Low_Level_Getter::get_unhooked_currency_form_woocommerce();
+			}
+		}
+
+		return $this->active_currency ? $this->active_currency : $default;
+	}
+
+	/**
+	 * Get list of available currencies.
+	 *
+	 * It is based on multipliers.
+	 *
+	 * @return array
+	 */
+	public function get_available_currencies() {
+		return $this->get_preffered_mc()->get_available_currencies();
+	}
+
+	/**
+	 * An AJAX method to change currency for admin.
+	 */
+	public function admin_ajax_change_currency() {
+		$mc = $this->get_preffered_mc();
+		if ( $mc->is_multi_currency_active() ) {
+			header( 'Content-Type: text/plain; charset=utf-8' );
+			wc_setcookie( 'admin_p24_currency', $this->check_admin_currency( '' ) );
+			echo 'Ok';
+			wp_die();
+		}
+	}
+
+	/**
+	 * Bind events to use multi currency.
+	 */
+	public function bind_events() {
+		add_action( 'wp_ajax_p24_change_currency', array( $this, 'admin_ajax_change_currency' ) );
+		add_filter( 'przelewy24_multi_currency_admin_currency', array( $this, 'check_admin_currency' ) );
+		add_filter( 'przelewy24_multi_currency_options', array( $this, 'get_available_currencies' ) );
+	}
+
+}