Function to programmatically run a specific workflow for a specific order

functions.php

<?php

/**
 * Run a specific workflow for a specific order.
 *
 * @param int $workflow_id
 * @param int $order_id
 *
 * @throws \Exception
 */
function automatewoo_run_order_workflow( int $workflow_id, int $order_id ) {
	$order = wc_get_order( $order_id );
	if ( ! $order ) {
		throw new \Exception;
	}

	$customer = \AutomateWoo\Customer_Factory::get_by_order( $order );

	// If the required data items for the trigger are not set here the workflow will not run
	$workflow_data = new Data_Layer(
		[
			\AutomateWoo\DataTypes\DataTypes::ORDER    => $order,
			\AutomateWoo\DataTypes\DataTypes::CUSTOMER => $customer
		]
	);

	$workflow = \AutomateWoo\Workflows\Factory::get( $workflow_id );
	if ( ! $workflow ) {
		throw new \Exception;
	}
	
	$workflow->maybe_run( $workflow_data );
}