<?php
// phpcs:disable WordPress.Security.ValidatedSanitizedInput.MissingUnslash, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Request metadata is used only for routing/cache-key/compatibility comparisons and is never rendered or persisted without later normalization.
// phpcs:disable WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound -- Compatibility checks reference third-party/WordPress constants that QW Optimize does not define.
namespace QWSpeedCache\Compatibility;

defined( 'ABSPATH' ) || exit;

/**
 * Cache compatibility for WooCommerce, EDD, common LMS, login/cart.
 */
class Ecommerce {

	public function __construct() {
		add_action( 'init', array( $this, 'maybe_donotcache' ), 5 );
		add_filter( 'qwsc_cache_reject_uri_defaults', array( $this, 'default_uris' ) );
		add_filter( 'qwsc_cache_reject_cookies_defaults', array( $this, 'default_cookies' ) );
	}

	/**
	 * @param string[] $uris URIs.
	 * @return string[]
	 */
	public function default_uris( $uris ) {
		$extra = array(
			'/cart',
			'/checkout',
			'/my-account',
			'/wc-api/',
			'/login',
			'/wp-login.php',
			'/wishlist',
		);
		if ( class_exists( 'Easy_Digital_Downloads' ) || function_exists( 'edd_is_checkout' ) ) {
			$extra = array_merge( $extra, array( '/checkout', '/edd-api/' ) );
		}
		if ( class_exists( 'LearnPress' ) || class_exists( 'SFWD_LMS' ) || class_exists( 'Sensei_Main' ) ) {
			$extra = array_merge( $extra, array( '/lesson', '/course', '/quiz', '/profile' ) );
		}
		return array_unique( array_merge( (array) $uris, $extra ) );
	}

	/**
	 * @param string[] $cookies Cookies.
	 * @return string[]
	 */
	public function default_cookies( $cookies ) {
		$extra = array(
			'wordpress_logged_in_',
			'woocommerce_items_in_cart',
			'woocommerce_cart_hash',
			'wp_woocommerce_session_',
			'edd_items_in_cart',
		);
		return array_unique( array_merge( (array) $cookies, $extra ) );
	}

	public function maybe_donotcache() {
		if ( is_user_logged_in() ) {
			// Optional: still allow page cache only for anonymous via Engine.
			return;
		}
		if ( ( function_exists( 'is_cart' ) && is_cart() )
			|| ( function_exists( 'is_checkout' ) && is_checkout() )
			|| ( function_exists( 'is_account_page' ) && is_account_page() ) ) {
			$this->flag();
		}
		if ( function_exists( 'edd_is_checkout' ) && edd_is_checkout() ) {
			$this->flag();
		}
		$uri = isset( $_SERVER['REQUEST_URI'] ) && is_string( $_SERVER['REQUEST_URI'] )
			? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '';
		if ( strlen( $uri ) > 8192 ) {
			$this->flag();
			return;
		}
		foreach ( array( '/cart', '/checkout', '/my-account', '/wp-login.php', '/login' ) as $p ) {
			if ( false !== stripos( $uri, $p ) ) {
				$this->flag();
				break;
			}
		}
	}

	private function flag() {
		if ( ! defined( 'DONOTCACHEPAGE' ) ) {
			define( 'DONOTCACHEPAGE', true );
		}
	}
}