Nintendo switch water damage/connected to charger

Hello,
My son some how dropped his switch in the toilet and then he (not knowing to NOT do this) decided to plug the switch onto the charger. With that being said, would it be even worth my time to try to repair as the motherboard could have been affected. I am not very savvy when it comes to repairing electronics but my brother watches your videos all the time and thought I would at least ask.