using System;
using System.Collections;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using BITKit.Entities;
using UnityEngine;

namespace BITKit
{
	public class AutoRespawnBehavior : EntityBehavior,IAction
	{
		[SerializeField] private IntervalUpdate respawnInterval;
		private bool requestRespawn;
		[Inject] private IHealth _health;
		private int _initialHp;
		
		private CancellationTokenSource _cancellationTokenSource;
		public override void OnAwake()
		{
			_initialHp=_health.HealthPoint;
			_health.OnSetAlive += OnSetAlive;
		}
		private async void OnSetAlive(bool alive)
		{
			if (alive)
			{
				_cancellationTokenSource?.Cancel();
			}
			else
			{
				_cancellationTokenSource?.Cancel();
				_cancellationTokenSource = new CancellationTokenSource();
				try
				{
					await Task.Delay(TimeSpan.FromSeconds(respawnInterval.Interval), _cancellationTokenSource.Token);
					destroyCancellationToken.ThrowIfCancellationRequested();
					Execute();
				}
				catch(MissingReferenceException){}
				catch (OperationCanceledException){}
			}
		}
		public void Execute()
		{
			if (_health.IsAlive is false)
				_health.HealthPoint = _initialHp;
		}
	}

}