//
//  ContentView.swift
//  Shared
//
//  Created by Sergey Tarasov on 24.07.2022.
//

import SwiftUI

enum Tab: Int {
    case contacts = 0
    case rooms = 1
    case settings = 2
}

struct ContentView: View {
    @ObservedObject var contactsViewModel: ChatListViewModel = ChatListViewModel()
    @ObservedObject var roomsViewModel: RoomsListViewModel = RoomsListViewModel()
    @ObservedObject var loginViewModel: LoginViewModel = LoginViewModel()

    @State var authStatus: Bool = false
    @State var selectedTab: Tab = .rooms
    var body: some View {
        Group {
            if authStatus {
                TabView(selection: $selectedTab) {
                    NavigationView {
                        ChatListView(viewModel: contactsViewModel)
                    }
                    .navigationViewStyle(StackNavigationViewStyle())
                    .tabItem {
                        Label("Контакты", systemImage: "person.crop.circle")
                    }
                    .tag(Tab.contacts)

                    NavigationView {
                        RoomsListView(viewModel: roomsViewModel)
                    }
                    .navigationViewStyle(StackNavigationViewStyle())
                    .tabItem {
                        Label("Чаты", systemImage: "bubble.left.and.bubble.right")
                    }
                    .tag(Tab.rooms)

                    NavigationView {
                        Text("")
                            .navigationTitle("Настройки")
                            .navigationBarTitleDisplayMode(.inline)
                    }
                    .navigationViewStyle(StackNavigationViewStyle())
                    .tabItem {
                        Label("Настройки", systemImage: "gear")
                    }
                    .tag(Tab.settings)
                }
            } else {
                LoginView(viewModel: loginViewModel, authStatus: $authStatus)
            }
        }
    }
}

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