Implement daily callback for expiration date that notifies user if a food has expired

[nashirj]

Store an array of expiration dates (sorted by soonest first); every day, run callback that checks all ingredients in each users inventory, notify them if they have any expired foods (one summary notification per user, rather than one per expired food). Then pop the expiration date and use the next date for subsequent callbacks

[mplekunov]

Hard to implement due to following reasons:
We are assuming server has information about client state. Since server doesn't know what state client is in "connected to the server, not connected to the server, app is open, app is in background etc", we can't really do it using straightforward way.

Possible solutions?
Add this feature on the client side. I can create an endpoint somewhere in the inventoryController which will be responsible for sending food items sorted by expiration date (we can actually use existing call for that, like we can use getInventory InventoryController call and just allow it to take some additional query parameters like sorted). The returned collection will be sorted in any way shape or form you need it to be and then you can create logic regarding of what you need to do with that collection

[nashirj]

Good idea, we can implement this on the client side. We can check every day or whenever the user logs in, whichever is less frequent