] : '';
						$tax_rate_class = $tax_rate->tax_rate_class;
						
						if ( empty( $tax_rate_class ) ) {
							$tax_rate_class = 'standard';
						}

						if ( empty( $category ) ) {
							$category = isset( $ubl_tax_settings['class'][$tax_rate_class]['category'] ) ? $ubl_tax_settings['class'][$tax_rate_class]['category'] : '';
						}

						if ( empty( $scheme ) ) {
							$scheme = isset( $ubl_tax_settings['class'][$tax_rate_class]['scheme'] ) ? $ubl_tax_settings['class'][$tax_rate_class]['scheme'] : '';
						}

						if ( ! empty( $category ) ) {
							wc_update_order_item_meta( $item_id, '_wcpdf_ubl_tax_category', $category );
						}

						if ( ! empty( $scheme ) ) {
							wc_update_order_item_meta( $item_id, '_wcpdf_ubl_tax_scheme', $scheme );
						}
					}
				}
			}
		}
	}
	
	public function vat_coc_required_for_ubl_invoice() {
		$invoice_ubl_settings = WPO_WCPDF()->settings->get_document_settings( 'invoice', 'ubl' );
		
		if ( isset( $invoice_ubl_settings['enabled'] ) && ( ! isset( WPO_WCPDF()->settings->general_settings['vat_number'] ) || ! isset( WPO_WCPDF()->settings->general_settings['coc_number'] ) ) ) {
			$message = sprintf(
				/* translators: 1. General Settings, 2. UBL Settings  */
				__( 'You\'ve enabled UBL output for a document, but some essential details are missing. Please ensure you\'ve added your VAT and CoC numbers in the %1$s. Also, specify your tax rates in the %2$s.', 'woocommerce-pdf-invoices-packing-slips' ),
				'<a href="' . esc_url( admin_url( 'admin.php?page=wpo_wcpdf_options_page' ) ) . '">' . __( 'General settings', 'woocommerce-pdf-invoices-packing-slips' ) . '</a>',
				'<a href="' . esc_url( admin_url( 'admin.php?page=wpo_wcpdf_options_page&tab=ubl' ) ) . '">' . __( 'UBL settings', 'woocommerce-pdf-invoices-packing-slips' ) . '</a>'
			);
			
			echo '<div class="notice notice-warning"><p>' . $message . '</p></div>';
		}
	}

}

endif; // class_exists