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

namespace BITKit
{
	public class AutoHealBehavior : EntityBehavior,IDamageCallback
	{
		[SerializeField] private IntervalUpdate healDelayInterval;
		[SerializeField] private IntervalUpdate healInterval;
		[SerializeField] private int healIncrement;
		private readonly ValidHandle allowHeal = new();
		[Inject]
		private IHealth _health;
		public override void OnStart()
		{
			_health = UnityEntity.Get<IHealth>();
			
			_health.OnSetAlive += OnSetAlive;
			_health.OnSetHealthPoint += OnSetHP;
		}

		private void Update()
		{
			if (!allowHeal.Allow || !healDelayInterval.AllowUpdateWithoutReset || !healInterval.AllowUpdate) return;
			_health.HealthPoint= Mathf.Clamp(_health.HealthPoint+healIncrement,0,_health.MaxHealthPoint);
			if (_health.HealthPoint == _health.MaxHealthPoint)
			{
				allowHeal.RemoveElement(this);
			}
		}

		public void OnSetAlive(bool alive)
		{
			allowHeal.SetDisableElements(this,alive is false);
		}

		public void OnSetHP(int hp)
		{
		}

		public void OnGetDamage(DamageMessage message)
		{
			allowHeal.AddElement(this);
			healDelayInterval.Reset();
		}
	}

}