Passport photo mobile app

I want a photo printing application. The first screen will be the user login screen. There will be 3 types of users: admin, reseller and user. Admin must create dealer and user. Dealer must create user. After the user logs in, the camera should be opened and the camera should automatically detect the face, and the detected face should be warned to look at the camera. After the photo is taken, the background of the picture should be erased on the other screen. It should allow editing on the picture on the next screen. On the other screen, you have to choose which photo size to print and calculate the cost. After selection, the photo must be kept on a Web site or sd card and printed from the printer