/**
* Grant downloadable product access to the file identified by $download_id.
*
* @param string $download_id file identifier
* @param int|WC_Product $product
* @param WC_Order $order the order
* @param int $qty purchased
* @return int|bool insert id or false on failure
*/
function wc_downloadable_file_permission($download_id, $product, $order, $qty = 1)
{
if (is_numeric($product)) {
$product = wc_get_product($product);
}
$download = new WC_Customer_Download();
$download->set_download_id($download_id);
$download->set_product_id($product->get_id());
$download->set_user_id($order->get_customer_id());
$download->set_order_id($order->get_id());
$download->set_user_email($order->get_billing_email());
$download->set_order_key($order->get_order_key());
$download->set_downloads_remaining(0 > $product->get_download_limit() ? '' : $product->get_download_limit() * $qty);
$download->set_access_granted(current_time('timestamp'));
$download->set_download_count(0);
$expiry = $product->get_download_expiry();
if ($expiry > 0) {
$order_completed_date = date_i18n("Y-m-d", $order->get_date_completed());
$download->set_access_expires(strtotime($order_completed_date . ' + ' . $expiry . ' DAY'));
}
return $download->save();
}