WooCommerce Varyasyonlu Ürünlerde “1 Alana 1 Bedava” Kampanyası Nasıl Yapılır?

				
					add_action('woocommerce_before_calculate_totals', 'furkansaglam_bogo_variation');

function furkansaglam_bogo_variation($cart) {
    if (is_admin() || defined('DOING_AJAX') || did_action('furkansaglam_bogo_applied')) return;

    do_action('furkansaglam_bogo_applied');

    // Kampanyalı varyasyon ID'lerini buraya ekleyin
    $campaign_variations = [102]; // Örnek: 102 ID'li varyasyon

    foreach ($campaign_variations as $variation_id) {
        $buy_qty = 0;
        $matched_item = null;

        foreach ($cart->get_cart() as $key => $item) {
            if (!empty($item['bogo_free']) && $item['variation_id'] == $variation_id) {
                $cart->remove_cart_item($key);
            }
        }

        foreach ($cart->get_cart() as $item) {
            if ($item['variation_id'] == $variation_id && empty($item['bogo_free'])) {
                $buy_qty += $item['quantity'];
                $matched_item = $item;
            }
        }

        if ($buy_qty > 0 && $matched_item) {
            $cart->add_to_cart($matched_item['product_id'], $buy_qty, $variation_id, $matched_item['variation'], array(
                'bogo_free' => true
            ));
        }
    }
}

// Sepet ekranında (Ücretsiz) etiketi
add_filter('woocommerce_cart_item_name', function($name, $cart_item) {
    if (!empty($cart_item['bogo_free'])) {
        $name .= ' <span style="color:green;">(Ücretsiz)</span>';
    }
    return $name;
}, 10, 2);

// Sepet altına kampanya açıklaması
add_action('woocommerce_cart_totals_before_order_total', function() {
    $shown = false;
    foreach (WC()->cart->get_cart() as $item) {
        if (!empty($item['bogo_free']) && !$shown) {
            echo '<tr><td colspan="2"><div style="margin-top:10px; color:#007cba; font-weight:bold;">Bu üründe 1 alana 1 bedava kampanyası uygulanmıştır.</div></td></tr>';
            $shown = true;
        }
    }
});