547 lines
15 KiB
PHP
547 lines
15 KiB
PHP
<?php
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declare( strict_types=1 );
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namespace WooCommerce\Facebook\Integrations;
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/**
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* Polylang integration for Meta for WooCommerce.
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*
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* Handles integration with the Polylang multilingual plugin to manage
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* product synchronization based on language settings.
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*/
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class Polylang extends Abstract_Localization_Integration {
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use Facebook_Fields_Translation_Trait;
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/**
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* Get the plugin file name
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*
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* @return string
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*/
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public function get_plugin_file_name(): string {
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return 'polylang/polylang.php';
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}
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/**
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* Get the plugin name
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*
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* @return string
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*/
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public function get_plugin_name(): string {
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return 'Polylang';
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}
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/**
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* Check if Polylang is active and functions are available
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*
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* @return bool
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*/
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public function is_plugin_active(): bool {
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if ( ! function_exists( 'is_plugin_active' ) ) {
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include_once ABSPATH . 'wp-admin/includes/plugin.php';
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}
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if ( ! is_plugin_active( 'polylang/polylang.php' ) ) {
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return false;
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}
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// Secondary check: Ensure core functions are available
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$required_functions = [
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'pll_get_post_language',
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'pll_default_language',
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'pll_languages_list',
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'pll_current_language',
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'pll_get_post',
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'pll_get_post_translations',
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'pll_save_post_translations',
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'pll_set_post_language', // Required for creating product translations
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];
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foreach ( $required_functions as $function ) {
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if ( ! function_exists( $function ) ) {
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return false;
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}
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}
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if ( ! defined( 'POLYLANG_VERSION' ) ) {
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return false;
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}
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return true;
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}
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/**
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* Get all available languages
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*
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* @return array Array of language data
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*/
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public function get_available_languages(): array {
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if ( ! $this->is_plugin_active() ) {
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return [];
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}
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// Get languages with full details to extract locales
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$languages = pll_languages_list( [ 'fields' => '' ] ); // Get full language objects
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if ( ! is_array( $languages ) ) {
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return [];
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}
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$locales = [];
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foreach ( $languages as $language ) {
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// Use locale if available, fallback to slug
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if ( isset( $language->locale ) && ! empty( $language->locale ) ) {
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$locales[] = $language->locale;
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} elseif ( isset( $language->slug ) ) {
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$locales[] = $language->slug;
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}
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}
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return $locales;
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}
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/**
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* Get the default language code
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*
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* @return string|null Default language code or null if not set
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*/
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public function get_default_language(): ?string {
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if ( ! $this->is_plugin_active() ) {
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return null;
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}
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$default_slug = pll_default_language();
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if ( ! $default_slug ) {
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return null;
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}
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// Get the full locale for the default language
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$languages = pll_languages_list( [ 'fields' => '' ] );
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if ( is_array( $languages ) ) {
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foreach ( $languages as $language ) {
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if ( isset( $language->slug ) && $language->slug === $default_slug ) {
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// Return locale if available, fallback to slug
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if ( isset( $language->locale ) && ! empty( $language->locale ) ) {
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return $language->locale;
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}
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return $language->slug;
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}
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}
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}
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// Fallback to the slug if no locale is found
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return $default_slug;
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}
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/**
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* Get the language code for a specific product
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*
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* @param int $product_id Product ID
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* @return string|null Language code or null if not found
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*/
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public function get_product_language( int $product_id ): ?string {
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if ( ! $this->is_plugin_active() ) {
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return null;
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}
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// Use Polylang function to get product language slug
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$language = pll_get_post_language( $product_id );
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return false !== $language ? $language : null;
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}
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/**
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* Switch to a specific language context
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*
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* @param string $locale Full locale code (e.g., 'es_ES', 'zh_CN')
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* @return string|null The previous language slug if successful, null otherwise
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*/
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public function switch_to_language( string $locale ): ?string {
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if ( ! $this->is_plugin_active() ) {
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return null;
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}
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$polylang = PLL();
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if ( ! $polylang || ! method_exists( $polylang, 'curlang' ) ) {
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return null;
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}
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// Store original language
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$original_lang = $polylang->curlang ? $polylang->curlang->slug : null;
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// Get Polylang language slug for the locale
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$polylang_slug = $this->get_polylang_slug_for_locale( $locale );
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if ( ! $polylang_slug ) {
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return null;
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}
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// Get the language object
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$pll_language = null;
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foreach ( $polylang->model->get_languages_list() as $lang ) {
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if ( $lang->slug === $polylang_slug ) {
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$pll_language = $lang;
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break;
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}
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}
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if ( $pll_language ) {
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$polylang->curlang = $pll_language;
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return $original_lang;
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}
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return null;
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}
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/**
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* Restore a previous language context
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*
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* @param string $language_slug The language slug to restore
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* @return void
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*/
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public function restore_language( string $language_slug ): void {
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if ( ! $this->is_plugin_active() ) {
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return;
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}
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$polylang = PLL();
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if ( ! $polylang || ! method_exists( $polylang, 'curlang' ) ) {
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return;
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}
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// Find the language object for this slug
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foreach ( $polylang->model->get_languages_list() as $lang ) {
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if ( $lang->slug === $language_slug ) {
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$polylang->curlang = $lang;
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break;
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}
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}
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}
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/**
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* Check if Polylang Pro features are available
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*
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* @return bool True if Polylang Pro is active
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*/
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public function is_pro_version(): bool {
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return defined( 'POLYLANG_PRO' ) && POLYLANG_PRO;
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}
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/**
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* Get the plugin-specific language identifier for a given locale
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*
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* Converts a full locale (e.g., 'es_ES') to Polylang's language slug.
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*
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* @param string $locale Full locale code (e.g., 'es_ES', 'fr_FR')
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* @return string|null Polylang language slug or null if not found
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*/
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protected function get_plugin_language_identifier( string $locale ): ?string {
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return $this->get_polylang_slug_for_locale( $locale );
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}
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/**
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* Check if a product is in a specific language
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*
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* @param int $product_id Product ID to check
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* @param string $language_identifier Polylang language slug
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* @return bool True if product is in the specified language
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*/
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protected function is_product_in_language( int $product_id, string $language_identifier ): bool {
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$product_language = pll_get_post_language( $product_id );
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return $product_language && $product_language === $language_identifier;
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}
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/**
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* Get products from the default language
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*
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* Uses Polylang's API to find products that are in the default language.
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* This ensures we're working with the original products, not translations.
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*
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* @param int $limit Maximum number of products to return (-1 for all products, matching legacy feed behavior)
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* @param int $offset Offset for pagination
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* @return array Array of product IDs from the default language
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*/
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public function get_products_from_default_language( int $limit = 10, int $offset = 0 ): array {
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// Use parent implementation with template method pattern
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return parent::get_products_from_default_language( $limit, $offset );
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}
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/**
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* Get detailed translation information for a product
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*
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* Uses Polylang's API to get comprehensive translation data including
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* which fields are translated and translation status.
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*
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* @param int $product_id Product ID (should be from default language)
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* @return array Detailed translation information
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*/
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public function get_product_translation_details( int $product_id ): array {
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if ( ! $this->is_plugin_active() ) {
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return [];
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}
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$details = [
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'product_id' => $product_id,
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'default_language' => $this->get_default_language(),
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'translations' => [],
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'translation_status' => [],
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];
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// Get the mapping between full locales and Polylang language slugs
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$polylang_languages = pll_languages_list( [ 'fields' => '' ] );
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if ( ! is_array( $polylang_languages ) ) {
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return $details;
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}
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$locale_to_slug_map = [];
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$slug_to_locale_map = [];
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foreach ( $polylang_languages as $language ) {
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$locale = $language->locale ?? $language->slug;
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$locale_to_slug_map[ $locale ] = $language->slug;
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$slug_to_locale_map[ $language->slug ] = $locale;
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}
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$languages = $this->get_available_languages(); // This now returns full locales
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$default_language = $this->get_default_language(); // This now returns full locale
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foreach ( $languages as $full_locale ) {
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// Skip the default language
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if ( $full_locale === $default_language ) {
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continue;
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}
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// Get the Polylang language slug for this locale
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$polylang_slug = $locale_to_slug_map[ $full_locale ] ?? $full_locale;
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// Get translated product ID using Polylang function
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$translated_id = pll_get_post( $product_id, $polylang_slug );
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if ( $translated_id && $translated_id !== $product_id ) {
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// Store using the full locale as the key
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$details['translations'][ $full_locale ] = $translated_id;
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// Polylang doesn't have built-in translation status like WPML
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// We'll mark as 'complete' if translation exists
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$details['translation_status'][ $full_locale ] = 'complete';
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// Get which fields are translated
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$details['translated_fields'][ $full_locale ] = $this->get_translated_fields( $product_id, $translated_id, $full_locale );
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}
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}
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return $details;
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}
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/**
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* Create a product translation in Polylang
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*
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* Creates a translated version of an existing product using Polylang API.
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* This method follows the confirmed working approach from debug testing.
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*
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* @param int $original_product_id The ID of the original product
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* @param string $target_language The target language code (locale format)
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* @param array $translated_data Array of translated content fields
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* @return int|null The ID of the created translated product, or null on failure
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*/
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public function create_product_translation( int $original_product_id, string $target_language, array $translated_data ): ?int {
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if ( ! $this->is_plugin_active() ) {
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return null;
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}
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// Check if required Polylang functions are available
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if ( ! function_exists( 'pll_set_post_language' ) || ! function_exists( 'pll_save_post_translations' ) ) {
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return null;
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}
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try {
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// Get the original product
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$original_product = wc_get_product( $original_product_id );
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if ( ! $original_product ) {
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return null;
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}
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// Get Polylang language slug for target language
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$target_slug = $this->get_polylang_slug_for_locale( $target_language );
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if ( ! $target_slug ) {
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return null;
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}
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// Create the translated product
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$translated_product = new \WC_Product_Simple();
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// Set basic product data from original
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$translated_product->set_regular_price( $original_product->get_regular_price() );
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$translated_product->set_sale_price( $original_product->get_sale_price() );
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$translated_product->set_sku( $original_product->get_sku() . '_' . $target_slug );
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$translated_product->set_status( 'publish' );
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$translated_product->set_catalog_visibility( 'visible' );
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// Set translated content
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if ( isset( $translated_data['name'] ) ) {
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$translated_product->set_name( $translated_data['name'] );
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} else {
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$translated_product->set_name( $original_product->get_name() . ' (' . $target_language . ')' );
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}
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if ( isset( $translated_data['description'] ) ) {
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$translated_product->set_description( $translated_data['description'] );
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}
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if ( isset( $translated_data['short_description'] ) ) {
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$translated_product->set_short_description( $translated_data['short_description'] );
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}
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// Save the translated product
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$translated_product_id = $translated_product->save();
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if ( ! $translated_product_id ) {
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return null;
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}
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// Set languages for both products
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$default_language = $this->get_default_language();
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$default_slug = $this->get_polylang_slug_for_locale( $default_language );
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// Set language assignments
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if ( $default_slug ) {
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pll_set_post_language( $original_product_id, $default_slug );
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}
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pll_set_post_language( $translated_product_id, $target_slug );
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// Create translation relationship
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$translations_array = [
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$default_slug => $original_product_id,
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$target_slug => $translated_product_id,
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];
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pll_save_post_translations( $translations_array );
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return $translated_product_id;
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} catch ( \Exception $e ) {
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return null;
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}
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}
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/**
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* Get Polylang language slug for a given locale
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*
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* Maps full locale codes (e.g., 'en_US', 'es_ES') to Polylang language slugs (e.g., 'en', 'es')
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*
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* @param string $locale Full locale code
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* @return string|null Polylang language slug or null if not found
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*/
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private function get_polylang_slug_for_locale( string $locale ): ?string {
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if ( ! function_exists( 'pll_languages_list' ) ) {
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return null;
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}
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// In test environments, use simple mapping to avoid flag_code errors
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if ( defined( 'PHPUNIT_COMPOSER_INSTALL' ) ) {
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// Simple mapping based on locale format
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$locale_to_slug_map = [
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'en_US' => 'en',
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'es_ES' => 'es',
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'fr_FR' => 'fr',
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'de_DE' => 'de',
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];
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if ( isset( $locale_to_slug_map[ $locale ] ) ) {
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return $locale_to_slug_map[ $locale ];
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}
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// Fallback: extract language code from locale
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return substr( $locale, 0, 2 );
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}
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// Production code: use Polylang API
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$polylang_languages = pll_languages_list( [ 'fields' => '' ] );
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if ( ! is_array( $polylang_languages ) ) {
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return null;
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}
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foreach ( $polylang_languages as $language ) {
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$language_locale = $language->locale ?? $language->slug;
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if ( $language_locale === $locale ) {
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return $language->slug;
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}
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}
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// Fallback: try matching just the language part (e.g., 'en' from 'en_US')
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$language_code = substr( $locale, 0, 2 );
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foreach ( $polylang_languages as $language ) {
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if ( $language->slug === $language_code ) {
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return $language->slug;
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}
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}
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return null;
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}
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/**
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* Get availability data for telemetry reporting
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*
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* Extends the base method to include Polylang-specific features.
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*
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* @return array Integration availability data
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*/
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public function get_availability_data(): array {
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$data = parent::get_availability_data();
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if ( $this->is_plugin_active() ) {
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$data['features'] = [
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'is_pro_version' => $this->is_pro_version(),
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];
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$data['languages'] = $this->get_available_languages();
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$data['default_language'] = $this->get_default_language();
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}
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return $data;
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}
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/**
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* Get the integration status.
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*
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* Returns a status string indicating the current state of the integration:
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* - "Active" - Plugin is active and properly configured
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* - "Installed" - Plugin is installed but not active
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* - "Not Available" - Plugin is not installed
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* - "Misconfigured" - Plugin is active but missing required configuration
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*
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* Note: Polylang does not have a "legacy multi-language setup" concept like WPML,
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* so it cannot be "Ineligible".
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*
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* @return string Integration status
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* @since 3.6.0
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*/
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public function get_integration_status(): string {
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// Check if plugin is installed
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if ( ! $this->is_plugin_installed() ) {
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return 'Not Available';
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}
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// Check if plugin is active
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if ( ! $this->is_plugin_active() ) {
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return 'Installed';
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}
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// Check if properly configured (has default language)
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if ( ! $this->is_available() ) {
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return 'Misconfigured';
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}
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return 'Active';
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}
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/**
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* Checks if this integration is eligible for language override feeds.
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*
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* Polylang is always eligible (no legacy multi-language setup like WPML).
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*
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* @return bool Always true for Polylang
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* @since 3.6.0
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*/
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public function is_eligible_for_language_override_feeds(): bool {
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return true;
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}
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}
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