Inventory manage stock status

I sell food and when the ingredients run out on the day, I change the stock status to ‘Out of stock’ in the inventory. And this product is re-supplied every morning. So I change from ‘Out of stock’ to ‘In stock’ every morning. Is it possible to automatically change all items to ‘In Stock’ at 12:00 am on the day?

Also, for this issue, in the WCFM store manager App, when I change the ‘manage stock’ of a product to ‘On’ and enter the ‘Stock quantity’ as 0, the item is changed to ‘Out of stock’ on the customer’s product page. However, I changed the Manage stock to ‘Off’ again, but the product page still remains as ‘Out of stock’. Can I ask you if it to be changed to ‘In Stock’ status.