using System;
using System.Collections;
using System.Collections.Generic;
using BITKit;
using BITKit.Pool;
using Net.BITKit.VFX;
using UnityEngine;

namespace Project.B.CharacterController
{
    public class PlayerFootstepController:IDisposable
    {
        private readonly IPoolService _poolService;
        private readonly VFXService _vfxService;
        private readonly ICharacterController _characterController;
        private readonly ITicker _ticker;

        private readonly Animator _animator;

        private readonly ValidHandle _isBusy = new();
        
        private readonly IntervalUpdate _intervalUpdate = new(0.32f);

        private Transform _leftFoot;
        private Transform _rightFoot;

        private readonly List<string> _tags = new()
        {
            "footstep"
        };

  
        

        public PlayerFootstepController(ICharacterController characterController, ITicker ticker, VFXService vfxService, IPoolService poolService, Animator animator)
        {
            _characterController = characterController;
            _ticker = ticker;
            _vfxService = vfxService;
            _poolService = poolService;
            _animator = animator;

            _ticker.Add(OnTick);

            _characterController.OnStateChanged += OnStateChanged;
        }

        private void OnStateChanged(ICharacterState arg1, ICharacterState arg2)
        {
            _intervalUpdate.Interval = 1f / arg2 switch
            {
                ICharacterSprint=>7,
                ICharacterStateRun=>5,
                _ =>3
            };
            _intervalUpdate.Reset();
        }

        private async void OnTick(float obj)
        {
            if(_isBusy.Allow)return;
            
            if(_intervalUpdate.AllowUpdate is false)return;
            
            using var wait = _isBusy.GetHandle();
            
            if(_characterController.IsGrounded is false)return;
            Vector3 planerVelocity = _characterController.Velocity;
            planerVelocity.y = 0;
            
            if(planerVelocity.GetLength()<2)return;

            var vfx = _vfxService.GetPrefab(_tags).gameObject;
            
            if(!vfx)return;
            
            vfx =await _poolService.Spawn<GameObject>(vfx.name, vfx);

            if (!_leftFoot)
            {
                _leftFoot = _animator.GetBoneTransform(HumanBodyBones.LeftFoot);
            }

            if (!_rightFoot)
            {
                _rightFoot = _animator.GetBoneTransform(HumanBodyBones.RightFoot);
            }

            if (_leftFoot && _rightFoot)
            {
                vfx.transform.position = _leftFoot.position.y < _rightFoot.position.y ? _leftFoot.position : _rightFoot.position;
            }
            else
            {
                vfx.transform.position = _characterController.Position;
            }
        }

        public void Dispose()
        {
            _ticker.Remove(OnTick);
        }
    }

}