Optional Binding Example

gistfile1.txt

protocol UserProtocol {
    var user: User {get set}
}

struct Profile : Codable {
    var posts: [String] = [ ]
    var comments: [String] = [ ]
}
class User : ObservableObject {
    @Published var username: String
    @Published var password: String
    var isAuthenticated: Bool = false
    @Published var profile: Profile?
  
    
   init(username:String, password:String) {
       self.username = username
       self.password = password
    }
    
    @MainActor
    func authenticate(user: User) async -> User {
        if ( user.username == "admin" && user.password == "password") {
            user.isAuthenticated = true
        }
        return user
    }
    @MainActor
    func getLoggedInUser( user: User ) -> (name:String, isAuthenticated: Bool, profile: Profile?) {
        
        // process Login service and return isAuthenticatied
        let loggedInUser: (String, Bool, Profile?) = (username, isAuthenticated, profile)
        return loggedInUser
    }
}