using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BITFALL.Entities;
using BITKit;
using BITKit.Entities;
using BITKit.Sensors;
using UnityEngine;
using UnityEngine.Pool;

namespace BITFALL.Props
{
	public struct ExplosionDamageMessage : IDamageType,IPlayerExplosionDamage
	{
	}
	public class Prop_Explosive : MonoBehaviour
	{
		[SerializeReference, SubclassSelector] private ISensor rangeSensor;
		[SerializeReference, SubclassSelector] private IReference[] vfxTags;
		[SerializeField] private LayerMask physicsLayer;
		[SerializeField] private float explosionRadius;
		[SerializeField] private AnimationCurve damageCurve;

		public virtual void Explosion(GameObject root = null)
		{
			var damaged = ListPool<ulong>.Get();

			DI.Get<VFXService>().Spawn(new Location(transform), vfxTags.Select(x => x.Value).ToArray());
			foreach (var x in rangeSensor.Get())
			{
				if (x.TryGetComponent<Entity>(out var entity) is false) continue;
				if(entity.TryGetComponent<IStunObject>(out var stunObject))
				{
					stunObject.Stun(Vector3.Distance(transform.position, entity.transform.position), 0.5f);
				}
				if (damaged.TryAdd(entity.Id))
				{
					DamageService.Singleton.Execute(new DamageMessage()
					{
						Target = entity,
						Damage = (int)damageCurve.Evaluate(Vector3.Distance(transform.position,
							entity.transform.position)),
						DamageType = new ExplosionDamageMessage()
					});
					// entity.Invoke<DamageMessage>(new DamageMessage()
					// {
					// 	Target = entity,
					// 	Damage = (int)damageCurve.Evaluate(Vector3.Distance(transform.position,
					// 		entity.transform.position))
					// });
				}
			}

			damaged.Clear();
			ListPool<ulong>.Release(damaged);
			PhysicsHelper.Explosion(transform.position, explosionRadius, physicsLayer, 1024 * 8);
			Destroy(gameObject);
			if (root)
			{
				Destroy(root);
			}
		}
	}

}