using DaSaSo.ViewModel.Commands;
using DaSaSo.ViewModel.Interface;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using System.Windows.Input;

namespace DaSaSo.ViewModel.State.Navigation
{
    public class Navigator : INavigator, INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler? PropertyChanged;
        private BaseViewModel _currentViewModel;
        public BaseViewModel CurrentViewModel
        {
            get => _currentViewModel;
            set
            {
                _currentViewModel = value;
                OnPropertyChanged();
            }
        }

        public ICommand UpdateViewModelCommand { get; set; }

        public Navigator(IViewModelAbstractFactory viewModelFactory)
        {
            UpdateViewModelCommand = new UpdateCurrentViewModelCommand(this, viewModelFactory);
        }

        protected void OnPropertyChanged([CallerMemberName]string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}