Untitled

add_filter( 'woocommerce_is_purchasable', 'b2bking_hidden_items_not_purchasable', 1000000, 2);
add_filter( 'woocommerce_variation_is_purchasable', 'b2bking_hidden_items_not_purchasable', 1000000, 2);

function b2bking_hidden_items_not_purchasable($purchasable, $product){

	$current_product_id = intval($product->get_id());
	$currentuserid = get_current_user_id();	

	if (!defined('ICL_LANGUAGE_NAME_EN')){
		$allTheIDs = get_transient('b2bking_user_'.$currentuserid.'_ajax_visibility');
	} else {
		$allTheIDs = get_transient('b2bking_user_'.$currentuserid.'_ajax_visibility'.ICL_LANGUAGE_NAME_EN);
	}

	if (!is_array($allTheIDs)){
		$allTheIDs = array();
	}

	$offer_id = intval(get_option('b2bking_offer_product_id_setting', 0));
	$credit_id = intval(get_option('b2bking_credit_product_id_setting', 0));
	$mkcredit_id = intval(get_option('marketking_credit_product_id_setting', 0));

	$possible_parent_id = wp_get_post_parent_id($current_product_id);

	// if user is guest, or multisite b2b/b2b separation is enabled and user should be treated as guest
	if (!in_array($current_product_id, $allTheIDs) && $current_product_id !== $offer_id && $current_product_id !== $credit_id && $current_product_id !== $mkcredit_id && !in_array($possible_parent_id, $allTheIDs)){
		$purchasable = false;
	}

	return $purchasable;
}