[AutomateWoo] Custom variable - Order delivery date for Tyche Softwares plugin

functions.php

<?php

add_filter( 'automatewoo/variables', 'my_automatewoo_variables' );

/**
 * @param $variables array
 * @return array
 */
function my_automatewoo_variables( $variables ) {
	$variables['order']['delivery_date'] = dirname(__FILE__) . '/variable-order-delivery-date.php';
	return $variables;
}

variable-order-delivery-date.php

<?php

if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * @class My_AW_Variable_Order_Delivery_Date
 */
class My_AW_Variable_Order_Delivery_Date extends AutomateWoo\Variable_Abstract_Datetime {

	protected $name = 'order.delivery_date';

	
	function init() {
		$this->description = __( 'Displays the delivery date for the order.', 'automatewoo');
		$this->add_parameter_text_field( 'time', 'Time of day, use 24 hour time', false, 'HH:MM' );
		parent::init();
	}


	/**
	 * @param $order WC_Order
	 * @param $parameters array
	 * @return string|false
	 */
	function get_value( $order, $parameters ) {

		$timestamp = AutomateWoo\Compat\Order::get_meta( $order, '_orddd_timestamp' );

		if ( ! $timestamp ) {
			return false;
		}

		$date = new DateTime();
		$date->setTimestamp( $timestamp );

		if ( ! empty( $parameters['time'] ) ) {

			$parts = explode( ':', wc_clean( $parameters['time'] ) );

			if ( count( $parts) !== 2 ) {
				return false;
			}

			$date->setTime( (int) $parts[0], (int) $parts[1], 0 );
		}

		return $this->format_datetime( $date, $parameters );
	}
}

return new My_AW_Variable_Order_Delivery_Date();