show link to delivery process page

backend/app/plugins/wiaas/includes/class-wiaas-delivery-process.php

@@ -98,6 +98,22 @@ class Wiaas_Delivery_Process {
 		return $result;
 	}
 
+	public static function get_active_step($order_id){
+		$process_entry_id = get_post_meta($order_id, 'wiaas_delivery_process_entry_id');
+		if (empty($process_entry_id)) {
+			return null;
+		}
+
+		$process_instance = GFAPI::get_entry($process_entry_id);
+		$api = new Gravity_Flow_API($process_instance['form_id']);
+		$steps_info = $api->get_steps();
+
+		foreach ( $steps_info as $step_info ) {
+			return $api->get_step( $step_info->get_id(), $process_instance );
+		}
+		return null;
+	}
+
 	/**
 	 * Retrieves delivery process instance for order
 	 *