using System.Windows.Input;
using ytLive.Helpers;

namespace ytLive.ViewModels;

public class GoLiveViewModel : ViewModelBase
{
    private bool _isSignedIn;
    private string _accountName = string.Empty;
    private string _streamTitle = string.Empty;
    private string _streamDescription = string.Empty;
    private string _visibility = "Public";

    public bool IsSignedIn
    {
        get => _isSignedIn;
        set
        {
            if (SetProperty(ref _isSignedIn, value))
            {
                OnPropertyChanged(nameof(ShowSignIn));
                OnPropertyChanged(nameof(ShowAccount));
            }
        }
    }

    public bool ShowSignIn => !IsSignedIn;
    public bool ShowAccount => IsSignedIn;

    public string AccountName
    {
        get => _accountName;
        set => SetProperty(ref _accountName, value);
    }

    public string StreamTitle
    {
        get => _streamTitle;
        set => SetProperty(ref _streamTitle, value);
    }

    public string StreamDescription
    {
        get => _streamDescription;
        set => SetProperty(ref _streamDescription, value);
    }

    public string Visibility
    {
        get => _visibility;
        set => SetProperty(ref _visibility, value);
    }

    public string[] Visibilities { get; } = { "Public", "Unlisted", "Private" };

    public ICommand SignInCommand { get; }
    public ICommand ChangeAccountCommand { get; }
    public ICommand StartCommand { get; }
    public ICommand CancelCommand { get; }

    public GoLiveViewModel()
    {
        SignInCommand = new RelayCommand(_ => SignIn());
        ChangeAccountCommand = new RelayCommand(_ => ChangeAccount());
        StartCommand = new RelayCommand(_ => StartRequested?.Invoke(), _ => IsSignedIn);
        CancelCommand = new RelayCommand(_ => CancelRequested?.Invoke());
    }

    public event Action? StartRequested;
    public event Action? CancelRequested;

    private void SignIn()
    {
        // TODO: OAuth2 flow; for now simulate a successful sign-in
        AccountName = "Connected Channel";
        IsSignedIn = true;
    }

    private void ChangeAccount()
    {
        // TODO: re-run OAuth2; for now simulate signing out
        IsSignedIn = false;
        AccountName = string.Empty;
    }
}