using System;

namespace ScreenConnect;

public class ContextHolder<TRunContext> where TRunContext : RunContext
{
	public object SyncLock { get; } = new object();

	public TRunContext? CurrentContext { get; protected set; }

	public IDisposable WithNewContext(Func<TRunContext> contextCreator, out TRunContext currentContext)
	{
		lock (SyncLock)
		{
			CurrentContext.AssertNull();
			CurrentContext = contextCreator();
			currentContext = CurrentContext;
		}
		return new ProcDisposable(delegate
		{
			lock (SyncLock)
			{
				TRunContext? currentContext2 = CurrentContext;
				CurrentContext = null;
				currentContext2?.Dispose();
			}
		});
	}
}