[MarketShip] Remove refunded labels from label list

marketship-remove-refunded-labels.php

<?php

/**
 * Filters the `shippo_labels` meta value to remove refunded labels.
 * Workaround for label purchase limit not being increased after a
 * label is refunded.
 *
 * @param array|string $labels Shippo labels printed for order.
 *
 * @return array Labels with refunded labels removed.
 */
function ms_filter_shippo_labels( $labels ) {
	if ( '' === $labels ) {
		// No labels printed for order yet.
		return array();
	}

	return array_filter(
		$labels,
		function( $label ) {
			return $label['status'] !== 'REFUNDED';
		}
	);
}

add_filter( 'woocommerce_order_get_shippo_labels', 'ms_filter_shippo_labels' );