using System.Threading;
using System.Windows.Threading;
using JetBrains.Annotations;
using Torch.Managers;

namespace Torch.Server.Managers;

public class UiManager(TorchServer torchInstance) : Manager(torchInstance)
{
    [CanBeNull] private Thread _uiThread;
    [CanBeNull] private Dispatcher _dispatcher;

    public override void Attach()
    {
        _uiThread = new Thread(() =>
        {
            var ui = new TorchUI(torchInstance);

            _dispatcher = Dispatcher.CurrentDispatcher;
                
            SynchronizationContext.SetSynchronizationContext(
                new DispatcherSynchronizationContext(_dispatcher));

            ui.ShowDialog();
        });

        _uiThread.SetApartmentState(ApartmentState.STA);
        _uiThread.Start();
    }

    public override void Detach()
    {
        _dispatcher?.InvokeShutdown();
        if (Thread.CurrentThread != _uiThread)
            _uiThread?.Join();
    }
}