// SUBSTITUA OS MÉTODOS register_feed_endpoint() e generate_feed() POR ESTAS VERSÕES CORRIGIDAS:
    
    public function register_feed_endpoint() {
        // Registrar o endpoint personalizado
        add_rewrite_rule('^google-shopping-feed\.xml$', 'index.php?gsf_feed=1', 'top');
        
        // Adicionar variável de query
        add_filter('query_vars', array($this, 'add_query_vars'));
        
        // Hook alternativo para capturar a requisição mais cedo
        add_action('template_redirect', array($this, 'handle_feed_request'));
    }
    
    public function add_query_vars($vars) {
        $vars[] = 'gsf_feed';
        return $vars;
    }
    
    // MÉTODO ALTERNATIVO PARA CAPTURAR A REQUISIÇÃO
    public function handle_feed_request() {
        global $wp_query;
        
        // Verificar se é uma requisição para o feed
        if (isset($_SERVER['REQUEST_URI']) && strpos($_SERVER['REQUEST_URI'], 'google-shopping-feed.xml') !== false) {
            $this->output_feed();
            exit;
        }
        
        // Método alternativo usando query vars
        if (get_query_var('gsf_feed')) {
            $this->output_feed();
            exit;
        }
    }
    
    // MÉTODO PRINCIPAL PARA GERAR O FEED
    public function output_feed() {
        if (!class_exists('WooCommerce')) {
            wp_die('WooCommerce is required');
        }
        
        // Limpar qualquer saída anterior
        while (ob_get_level() > 0) {
            ob_end_clean();
        }
        
        // Definir headers corretos
        header('Content-Type: application/xml; charset=UTF-8');
        header('Cache-Control: no-cache, must-revalidate');
        header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
        
        echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
        echo '<rss version="2.0" xmlns:g="http://base.google.com/ns/1.0">' . "\n";
        echo '<channel>' . "\n";
        
        $settings = get_option('gsf_settings', array());
        
        echo '<title><![CDATA[' . (isset($settings['feed_title']) ? $settings['feed_title'] : get_bloginfo('name')) . ']]></title>' . "\n";
        echo '<link>' . esc_url(home_url()) . '</link>' . "\n";
        echo '<description><![CDATA[Google Shopping Feed for ' . get_bloginfo('name') . ']]></description>' . "\n";
        
        // DEBUG DETALHADO
        echo '<!-- === FEED DEBUG === -->' . "\n";
        echo '<!-- Request URI: ' . $_SERVER['REQUEST_URI'] . ' -->' . "\n";
        echo '<!-- WooCommerce Version: ' . (defined('WC_VERSION') ? WC_VERSION : 'Unknown') . ' -->' . "\n";
        echo '<!-- WordPress Version: ' . get_bloginfo('version') . ' -->' . "\n";
        echo '<!-- Current Time: ' . current_time('mysql') . ' -->' . "\n";
        
        // Query simples para produtos
        $args = array(
            'post_type' => 'product',
            'post_status' => 'publish',
            'posts_per_page' => 10 // Limitar para teste
        );
        
        $products_query = new WP_Query($args);
        echo '<!-- Products found: ' . $products_query->found_posts . ' -->' . "\n";
        
        $processed_count = 0;
        $skipped_count = 0;
        
        if ($products_query->have_posts()) {
            while ($products_query->have_posts()) {
                $products_query->the_post();
                $product_id = get_the_ID();
                $product = wc_get_product($product_id);
                
                echo '<!-- Processing Product ID: ' . $product_id . ' -->' . "\n";
                
                if (!$product) {
                    $skipped_count++;
                    echo '<!-- SKIPPED: Product ID ' . $product_id . ' - Not a valid WooCommerce product -->' . "\n";
                    continue;
                }
                
                $processed_count++;
                
                echo '<item>' . "\n";
                
                // ID do produto
                echo '<g:id>' . $product->get_id() . '</g:id>' . "\n";
                
                // Título
                $title = $product->get_name();
                echo '<title><![CDATA[' . $title . ']]></title>' . "\n";
                
                // LINK DO PRODUTO (CORRIGIDO)
                $product_link = get_permalink($product_id);
                echo '<link><![CDATA[' . esc_url($product_link) . ']]></link>' . "\n";
                
                // DESCRIÇÃO SEM LIMITE
                $description = $product->get_description();
                if (empty($description)) {
                    $description = $product->get_short_description();
                }
                if (empty($description)) {
                    $description = $product->get_name();
                }
                $description = wp_strip_all_tags($description);
                $description = html_entity_decode($description, ENT_QUOTES, 'UTF-8');
                echo '<description><![CDATA[' . trim($description) . ']]></description>' . "\n";
                
                // Preço
                $price = $product->get_price();
                if (!empty($price)) {
                    // Aplicar desconto se configurado
                    if (isset($settings['discount_percentage']) && $settings['discount_percentage'] > 0) {
                        $discount = $settings['discount_percentage'] / 100;
                        $price = $price * (1 - $discount);
                    }
                    $currency = isset($settings['currency']) ? $settings['currency'] : 'BRL';
                    echo '<g:price>' . number_format($price, 2, '.', '') . ' ' . $currency . '</g:price>' . "\n";
                }
                
                // Disponibilidade
                $availability = $product->is_in_stock() ? 'in stock' : 'out of stock';
                echo '<g:availability>' . $availability . '</g:availability>' . "\n";
                
                // Condição
                echo '<g:condition>new</g:condition>' . "\n";
                
                // Marca
                $brand = isset($settings['default_brand']) ? $settings['default_brand'] : get_bloginfo('name');
                echo '<g:brand><![CDATA[' . $brand . ']]></g:brand>' . "\n";
                
                // CATEGORIA LIMPA (SEM "TODOS OS PRODUTOS")
                $terms = get_the_terms($product_id, 'product_cat');
                if ($terms && !is_wp_error($terms)) {
                    $categories = array();
                    foreach ($terms as $term) {
                        if (strtolower($term->name) !== 'todos os produtos' && 
                            strtolower($term->name) !== 'all products' &&
                            $term->slug !== 'uncategorized') {
                            $categories[] = $term->name;
                        }
                    }
                    if (!empty($categories)) {
                        echo '<g:product_type><![CDATA[' . implode(' > ', $categories) . ']]></g:product_type>' . "\n";
                    } else {
                        $default_type = isset($settings['product_type']) ? $settings['product_type'] : 'Cosmetics';
                        echo '<g:product_type><![CDATA[' . $default_type . ']]></g:product_type>' . "\n";
                    }
                }
                
                // Google Product Category
                $google_category = isset($settings['default_google_category']) ? $settings['default_google_category'] : '469';
                echo '<g:google_product_category>' . $google_category . '</g:google_product_category>' . "\n";
                
                // IMAGEM PRINCIPAL
                $image_id = $product->get_image_id();
                if ($image_id) {
                    $image_url = wp_get_attachment_image_url($image_id, 'full');
                    if ($image_url) {
                        echo '<g:image_link><![CDATA[' . esc_url($image_url) . ']]></g:image_link>' . "\n";
                    }
                } else {
                    echo '<!-- No main image for product ' . $product_id . ' -->' . "\n";
                }
                
                // IMAGENS ADICIONAIS
                $attachment_ids = $product->get_gallery_image_ids();
                foreach ($attachment_ids as $attachment_id) {
                    $image_url = wp_get_attachment_image_url($attachment_id, 'full');
                    if ($image_url) {
                        echo '<g:additional_image_link><![CDATA[' . esc_url($image_url) . ']]></g:additional_image_link>' . "\n";
                    }
                }
                
                // GTIN
                $gtin = get_post_meta($product_id, '_gsf_gtin', true);
                if (!empty($gtin)) {
                    echo '<g:gtin>' . $gtin . '</g:gtin>' . "\n";
                }
                
                // MPN
                $mpn_source = isset($settings['mpn_source']) ? $settings['mpn_source'] : 'null';
                if ($mpn_source === 'sku') {
                    $mpn = $product->get_sku();
                    if (!empty($mpn)) {
                        echo '<g:mpn><![CDATA[' . $mpn . ']]></g:mpn>' . "\n";
                    }
                } elseif ($mpn_source === 'id') {
                    echo '<g:mpn>' . $product_id . '</g:mpn>' . "\n";
                } elseif ($mpn_source === 'custom' && !empty($settings['default_mpn'])) {
                    echo '<g:mpn><![CDATA[' . $settings['default_mpn'] . ']]></g:mpn>' . "\n";
                }
                
                // Identifier exists
                $identifier_exists = isset($settings['identifier_exists']) ? $settings['identifier_exists'] : 'yes';
                if (!empty($identifier_exists)) {
                    echo '<g:identifier_exists>' . $identifier_exists . '</g:identifier_exists>' . "\n";
                }
                
                // Is bundle
                $is_bundle = isset($settings['is_bundle']) ? $settings['is_bundle'] : 'no';
                echo '<g:is_bundle>' . $is_bundle . '</g:is_bundle>' . "\n";
                
                // CHECKOUT LINK (CORRIGIDO)
                $checkout_template = isset($settings['checkout_link_template']) ? 
                    $settings['checkout_link_template'] : 
                    'https://kinzancosmeticos.com/finalizar-compra-2/?&add-to-cart={product_id}';
                
                if (!empty($checkout_template)) {
                    $checkout_link = str_replace('{product_id}', $product_id, $checkout_template);
                    echo '<g:ads_redirect><![CDATA[' . esc_url($checkout_link) . ']]></g:ads_redirect>' . "\n";
                }
                
                echo '</item>' . "\n";
                
                // Limitar para teste inicial
                if ($processed_count >= 5) {
                    echo '<!-- Limited to 5 products for testing -->' . "\n";
                    break;
                }
            }
        } else {
            echo '<!-- No products found -->' . "\n";
        }
        
        wp_reset_postdata();
        
        echo '<!-- === RESULTADOS === -->' . "\n";
        echo '<!-- PROCESSED: ' . $processed_count . ' products -->' . "\n";
        echo '<!-- SKIPPED: ' . $skipped_count . ' products -->' . "\n";
        echo '<!-- Settings: ' . json_encode($settings) . ' -->' . "\n";
        
        echo '</channel>' . "\n";
        echo '</rss>' . "\n";
    }
    
    // REMOVER O MÉTODO generate_feed() ANTIGO COMPLETAMENTE
    // O método output_feed() substitui ele completamente
    
    public function activate() {
        $this->register_feed_endpoint();
        flush_rewrite_rules();
    }
    
    public function deactivate() {
        flush_rewrite_rules();
    }

// INSTRUÇÕES DE IMPLEMENTAÇÃO:
/*
1. Substitua os métodos register_feed_endpoint(), generate_feed() pelo código acima
2. Adicione o método add_query_vars(), handle_feed_request() e output_feed()
3. Desative e reative o plugin para atualizar as regras de rewrite
4. Teste o feed em: https://kinzancosmeticos.com/google-shopping-feed.xml

SOLUÇÃO ALTERNATIVA SE AINDA NÃO FUNCIONAR:
Acesse: WordPress Admin > Configurações > Links Permanentes > Salvar Alterações
Isso força a atualização das regras de rewrite.
*/<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://kinzancosmeticos.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-posts-product-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-taxonomies-woodmart_slider-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-taxonomies-product_brand-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-taxonomies-product_cat-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-taxonomies-product_tag-1.xml</loc></sitemap><sitemap><loc>https://kinzancosmeticos.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>