my-files-sample/BeReal/UI/Views/ContentView.swift

//
//  ContentView.swift
//  BeReal
//
//  Created by Javier Cicchelli on 29/11/2022.
//  Copyright © 2022 Röck+Cöde. All rights reserved.
//

import Browse
import DataModels
import Login
import KeychainStorage
import Profile
import SwiftUI

struct ContentView: View {
    
    // MARK: Storages
    
    @KeychainStorage(key: .KeychainStorage.account) private var account: Account?
    
    // MARK: States
    
    @State private var user: User?
    @State private var showSheet: SheetView?
    
    // MARK: Body
    
    var body: some View {
        NavigationView {
            BrowseView {
                // ...
            } uploadFile: {
                // ...
            } showProfile: {
                showSheet = .profile
            }
        }
        .onAppear {
            shouldShowLogin()
        }
        .onChange(of: account) { _ in
            shouldShowLogin()
        }
        .sheet(item: $showSheet) { sheet in
            switch sheet {
            case .login:
                LoginView {
                    account = $0
                    user = $1
                }
            case .profile:
                ProfileView {
                    account = nil
                }
            }
        }
    }

}

// MARK: - Helpers

private extension ContentView {
    func shouldShowLogin() {
        showSheet = account == nil
            ? .login
            : nil
    }
}

// MARK: - Previews

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}