using System;
using System.Collections;
using System.Collections.Generic;
using Animancer;
using BITKit;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Net.Project.B.Inventory;
using NodeCanvas.Framework;
using NodeCanvas.Tasks.Actions;
using Project.B.CharacterController;
using UnityEngine;

namespace Project.B.Animation
{
    public class PlayerHandAnimancer:IDisposable
    {
        private readonly ILogger<PlayerHandAnimancer> _logger;

        private readonly ICharacterController _characterController;

        private readonly IAfterTicker _ticker;
        
        private readonly IPlayerWeaponInventory _weaponInventory;

        private readonly IServiceProvider _serviceProvider;

        private readonly IBlackboard _blackboard;

        private IServiceScope _scope;

        private PlayerAnimancerController _animancerController;

        private readonly Animator _animator;
        
        private readonly Animator _armAnimator;
        

        public PlayerHandAnimancer(IPlayerWeaponInventory weaponInventory, IServiceProvider serviceProvider, IBlackboard blackboard, ILogger<PlayerHandAnimancer> logger, IAfterTicker ticker, ICharacterController characterController, Animator animator)
        {
            _weaponInventory = weaponInventory;
            _serviceProvider = serviceProvider;
            _blackboard = blackboard;
            _logger = logger;
            _ticker = ticker;
            _characterController = characterController;
            _animator = animator;
            
            _armAnimator = _blackboard.GetVariable<Animator>("animator_arm").value;

            if (! _armAnimator|| !_armAnimator.avatar ||!_armAnimator.GetBoneTransform(HumanBodyBones.UpperChest))
            {
                return;
            }
            _weaponInventory.StateMachine.OnStateChanged += OnStateChanged;
            _ticker.Add(OnTick);
            OnStateChanged(null, _weaponInventory.StateMachine.CurrentState);
        }

        private void OnTick(float obj)
        {
            if(_animancerController is null)return;

            var bone = _animator.GetBoneTransform(HumanBodyBones.UpperChest);
            
            var armBone = _armAnimator.GetBoneTransform(HumanBodyBones.UpperChest);
            
            if(!bone ||!armBone)return;

            _armAnimator.transform.position += bone.position -
                                               armBone.position;
            
            _armAnimator.transform.rotation = _characterController.Rotation;
        }

        private void OnStateChanged(IPlayerWeaponController arg1, IPlayerWeaponController arg2)
        {
            if (arg2 is null)
            {
                _scope = _serviceProvider.CreateScope();
                
                _animancerController= _scope.ServiceProvider.GetKeyedService<PlayerAnimancerController>(nameof(PlayerHandAnimancer));
                _animancerController.AnimancerComponent = _armAnimator.GetComponent<AnimancerComponent>();
            }
            else
            {
                Release();
            }
        }

        public void Dispose()
        {
            Release();
            _weaponInventory.StateMachine.OnStateChanged -= OnStateChanged;
            
            _ticker.Remove(OnTick);
        }

        private void Release()
        {
            _scope?.Dispose();
            _animancerController?.Dispose();
            _animancerController = null;
            _scope = null;
            
     
        }
    }

}