using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using BITFALL.Bullet;
using BITFALL.Entities.Equipment;
using BITKit;
using BITKit.Entities;
using BITKit.StateMachine;
using Unity.Mathematics;
using UnityEngine;

namespace BITFALL.Guns
{
	public class AIGunController : AIEquipController
	{
		[SerializeField] private Transform firePoint;
		[SerializeReference,SubclassSelector] private IBulletService bulletService;
		[SerializeField] private bool forceFire;
		[SerializeField] private Optional<int> customFireRate;
		[SerializeField] private Optional<IntervalUpdate> customFireInterval;
		private AssetableGun _gun=>assetableItem as AssetableGun;
		
		private readonly IntervalUpdate fireInterval = new(); 
		
		public override void Entry()
		{
			base.Entry();
			fireInterval.Interval = _gun.FireMode.FireRate is 0 ? 1 : 1f/_gun.FireMode.FireRate;
			if (customFireRate.Allow)
			{
				fireInterval.Interval =customFireRate.Value is 0 ? 1 : 1f / customFireRate.Value;
			}
			UnityEntity.AddListener<BITConstant.Command.AttackCommand>(OnAttack);
		}
		public override void Exit()
		{
			base.Exit();
			UnityEntity.RemoveListener<BITConstant.Command.AttackCommand>(OnAttack);
		}

		public override void OnUpdate(float deltaTime)
		{
			if (forceFire && fireInterval.AllowUpdate)
			{
				if(customFireInterval.Allow)
				{
					if (customFireInterval.Value.AllowUpdate)
					{
						OnAttack(new BITConstant.Command.AttackCommand());
					}
				}
				else
				{
					OnAttack(new BITConstant.Command.AttackCommand());
				}
			}
		}

		private void OnAttack(BITConstant.Command.AttackCommand obj)
		{
			bulletService.Spawn(new SpawnBullet()
			{
				forward = firePoint.forward,
				initialDamage = _gun.InitialDamage,
				initiator = Entity.Id,
				pos = firePoint.position,
				rot = firePoint.rotation,
				startSpeed = _gun.InitialBulletSpeed,
				InitialForce = _gun.InitialBulletForce,
			});
			UnityEntity.Invoke(Constant.Animation.Play, BITConstant.Player.Fire);
		}
	}

}