using System.Threading.Tasks;
using System.Windows.Input;
using Prism.Commands;
using Prism.Mvvm;

namespace Example
{
    [JetBrains.Annotations.UsedImplicitly]
    public class MainWindowViewModel : BindableBase
    {
        public MainWindowViewModel()
        {
            UpdateCommand = new DelegateCommand<string>(async x => await UpdateAsync(x).ConfigureAwait(false));
        }

        private Task UpdateAsync(string startup) =>
            bool.TryParse(startup, out var isStartup)
                ? Katteker.UserInterface.CheckForUpdateAsync(isStartup)
                : Task.FromResult(true);

        public ICommand UpdateCommand { get; }
    }
}