using System;

namespace Questionable.Controller.Steps.Common;

internal abstract class AbstractDelayedTaskExecutor<T> : TaskExecutor<T> where T : class, ITask
{
	private DateTime _continueAt;

	protected TimeSpan Delay { get; set; }

	protected AbstractDelayedTaskExecutor()
		: this(TimeSpan.FromSeconds(5L))
	{
	}

	protected AbstractDelayedTaskExecutor(TimeSpan delay)
	{
		Delay = delay;
	}

	protected sealed override bool Start()
	{
		bool result = StartInternal();
		_continueAt = DateTime.Now.Add(Delay);
		return result;
	}

	protected abstract bool StartInternal();

	public override ETaskResult Update()
	{
		if (_continueAt >= DateTime.Now)
		{
			return ETaskResult.StillRunning;
		}
		return UpdateInternal();
	}

	protected virtual ETaskResult UpdateInternal()
	{
		return ETaskResult.TaskComplete;
	}
}