edit my laravel project

what i need is 5 things before i will give you a little things about the project to understand there is Subscription CRUD has Days filed also coupons CRUD and USERS CRUD has expire date field and status field and ORDERS CRUD and here there is order_no field so what i need is this 1- when user chose his subscription from subscription CRUD then the expire date of users will be from the moment that i make status of user is active until days of his subscription finish so if the chosen subscription days was 10 days and i make the user status active today then the user expire date will be 30/04/2019 and in this date the status automatically will change to inactive 2- in ORDERS CRUD i want order_no field generate numbers automatically number from 7 numbers 3- in coupon CRUD i want to add usage field that count how many times this coupon used 4- i want to add login and register in api 5- i want to make live chat between users in mobile app build with flutter so prepare it for me thats what i want