Phonebook Review

[filipmarkovic064]

Hello and thank you for the review! I have a few questions if that is alright :)

1. Is my PhonebookController overloaded? I feel like theres too much stuff there but its just basic CRUD stuff so moving it elsewhere seems kind of wrong?
2. I tried following the tip you gave me after the DrinksInfo Project :

"This is more related to architecture but you're mixing HTTP stuff with UI stuff. You want to separate them so each method is easier to test."

Is this better? i tried not mixing business logic with UI stuff, however that made it so i have to write a bunch of extra stuff to make sure the app doesn't crash, which makes it look a bit more stuffed, is this what you meant tho and is this alright?

3. I tested my Validation of user inputs, is there anything else i should've tested with unit tests?
4. I also had to switch to public instead of internal in order to test my UserInputController, is this unsafe?

Btw i didnt want to deal with subscriptions on Twilio so i didnt implement the SMS functionality but it seemed simple enough using their API according to StackOverflow