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wp-content/plugins/litespeed-cache/thirdparty/aelia-currencyswitcher.cls.php

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+<?php
+/**
+ * The Third Party integration with the Aelia CurrencySwitcher plugin.
+ *
+ * @since      1.0.13
+ * @since      2.6     Removed hook_vary as OLS supports vary header already
+ * @package    LiteSpeed
+ * @subpackage LiteSpeed_Cache/thirdparty
+ */
+
+namespace LiteSpeed\Thirdparty;
+
+defined( 'WPINC' ) || exit();
+
+/**
+ * Integration layer for Aelia Currency Switcher.
+ *
+ * Registers the plugin cookies as Vary drivers so cached pages can differ by
+ * selected currency / location. Hooks both the runtime vary list (headers)
+ * and the rewrite-rules vary list (always needed).
+ */
+class Aelia_CurrencySwitcher {
+
+	/**
+	 * Cookie names used by Aelia Currency Switcher to determine currency & geo.
+	 *
+	 * @var string[]
+	 */
+	private static $_cookies = array( 'aelia_cs_selected_currency', 'aelia_customer_country', 'aelia_customer_state', 'aelia_tax_exempt' );
+
+	/**
+	 * Detects if WooCommerce + Aelia Currency Switcher are present and registers hooks.
+	 *
+	 * @since 1.0.13
+	 * @access public
+	 * @return void
+	 */
+	public static function detect() {
+		if ( defined( 'WOOCOMMERCE_VERSION' ) && isset( $GLOBALS['woocommerce-aelia-currencyswitcher'] ) && is_object( $GLOBALS['woocommerce-aelia-currencyswitcher'] ) ) {
+			// Not all pages need to add vary, so allow sites to restrict via filter.
+			self::$_cookies = apply_filters( 'litespeed_3rd_aelia_cookies', self::$_cookies );
+
+			// Add cookies to the active vary header list (conditionally used at runtime).
+			add_filter( 'litespeed_vary_curr_cookies', __CLASS__ . '::check_cookies' );
+
+			// Ensure rewrite rules are aware of these cookies (always include).
+			add_filter( 'litespeed_vary_cookies', __CLASS__ . '::register_cookies' );
+		}
+	}
+
+	/**
+	 * Ensure Aelia cookies are part of the global vary cookie registry.
+	 *
+	 * @since 1.0.13
+	 *
+	 * @param string[] $cookies Current list of vary cookies.
+	 * @return string[] Updated list including Aelia cookies.
+	 */
+	public static function register_cookies( $cookies ) {
+		return array_merge( $cookies, self::$_cookies );
+	}
+
+	/**
+	 * Conditionally append Aelia cookies to the vary header set for WooCommerce pages.
+	 *
+	 * If the page is not a WooCommerce page, leave the list unchanged.
+	 * Otherwise, append Aelia's cookies so responses vary correctly.
+	 *
+	 * @since 1.0.13
+	 * @access public
+	 *
+	 * @param string[] $cookies Current list of vary cookies for the response.
+	 * @return string[] Potentially augmented list of vary cookies.
+	 */
+	public static function check_cookies( $cookies ) {
+		// NOTE: is_cart and is_checkout are handled by WooCommerce itself.
+		if ( ! function_exists( 'is_woocommerce' ) || ! is_woocommerce() ) {
+			return $cookies;
+		}
+
+		return array_merge( $cookies, self::$_cookies );
+	}
+}