import SwiftUI
import KordophoneKit

struct LoginView : View {
    @AppStorage("serverAddress") var serverAddress: String = ""
    @AppStorage("username") var username: String = ""
    @AppStorage("password") var password: String = ""

    @State private var loggingIn = false
    
    var onLogin: (ConnectionInfo) -> Void = { _ in }
    
    private func login() {
        loggingIn = true
        onLogin(ConnectionInfo(serverAddress: serverAddress,
                               credentials: Credentials(username: username,
                                                        password: password)))
    }
    
    var body: some View {
        VStack {
            TextField("server", text: $serverAddress)
                .onSubmit {
                    login()
                }
            TextField("username", text: $username)
                .onSubmit {
                    login()
                }
            SecureField("password", text: $password)
                .onSubmit {
                    login()
                }
            Button("Login") {
                login()
            }
            .keyboardShortcut(.return)
        }
        .disabled(loggingIn)
        .animation(.spring(), value: loggingIn)
        .padding()
    }
}

struct LoginView_Previews : PreviewProvider {
    static var previews: some View {
        Group {
            LoginView()
        }
    }
}