Autocomplete Woocommerce order based on payment gateway

woocommerce-autocomplete-payment-gateway.php

<?php

// Update order status based on the id of payment gateway
function credit_card_complete_order_status( $order_id ) {
	$order = new WC_Order( $order_id );
	
    if ( $order->payment_method == 'authorize_net' )  {
      $order->update_status('completed', 'Automatically Completed');
    }
}
add_action( 'woocommerce_payment_complete', 'credit_card_complete_order_status' );