Add Longest Length Condition's Calculation for Per Class Setups

betrs-add-longest-length-condition-per-class.php

function betrs_add_longest_length_calc_class( $data, $items ) {
	$item_lengths = array();
    
	// cycle through cart items
	foreach( $items as $item_ar ) {

		// only count the ones that apply to shipping
		if( isset( $item_ar['data'] ) && $item_ar['data']->needs_shipping() ) {
			// initialize necessary variables
			$item = $item_ar['data'];
			$shipping_class_id = apply_filters( 'betrs_settings_shipping_class', $item->get_shipping_class_id() );
			$item_length = $item->get_length();

			if( ! isset( $item_lengths[ $shipping_class_id ] ) ||
				( isset( $item_lengths[ $shipping_class_id ] ) && $item_length > $item_lengths[ $shipping_class_id ] ) ) {
				$item_lengths[ $shipping_class_id ] = $item_length;
			}
		}
	}

	// add highest length to data array
	foreach( $item_lengths as $s_class => $length ) {
		$data[ $s_class ]['longest_length'] = $length;
	}

	return $data;
}
add_filter( 'betrs_calculated_totals-per_class', 'betrs_add_longest_length_calc_class', 10, 2 );