using System.Collections;
using System.Collections.Generic;
using BITFALL.Player.Equip;
using BITFALL.Player.Movement;
using BITKit;
using BITKit.Entities;
using BITKit.PlayerCamera;
using Cinemachine;

using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.InputSystem.Interactions;

namespace BITFALL.Player
{
	public class PlayerTPSController : EntityBehavior
	{
		[SerializeField] private CinemachineVirtualCamera thirdPersonCamera;
		
		[Inject]
		private IPlayerCameraService playerCameraService;
		
		[Header(Constant.Header.Input)]
		[SerializeField] private InputActionReference toggleCameraAction;
		[SerializeField] private InputActionReference scrollWheelAction;
        
		[Inject(true)]
		private InputActionGroup _inputActionGroup;

		[Inject] private IEquipService _equipService;

		[Inject] private IEntityMovement _movement;

		private readonly ValidHandle _allowTPS = new();

		private bool enableTPS;
		
		private Cinemachine3rdPersonFollow _aim;
		
		private Vector3 _initialShoulderOffset;

		public override void OnAwake()
		{
			base.OnAwake();
			playerCameraService.OnCameraActivated += OnCameraActivated;

			_aim = thirdPersonCamera.GetCinemachineComponent<Cinemachine3rdPersonFollow>();

			_inputActionGroup.RegisterCallback(toggleCameraAction, OnToggleCamera);
			_inputActionGroup.RegisterCallback(scrollWheelAction, OnScrollWheel);

			_allowTPS.AddListener(x => thirdPersonCamera.enabled = x);

			_movement.OnStateChanged += OnStateChanged;

			_initialShoulderOffset = _aim.ShoulderOffset;
		}


		private void OnScrollWheel(InputAction.CallbackContext obj)
		{
			switch (_movement.CurrentState)
			{
				case IPlayerFixedState:
				case IPlayerParachuteState:
					break;
				default:
					_aim.CameraDistance =
						Mathf.Clamp(_aim.CameraDistance - obj.ReadValue<Vector2>().y * Time.deltaTime * 0.2f, 0, 10);
					break;
			}
		}
		private float _initialCameraDistance;
		private void OnStateChanged(IEntityMovementState arg1, IEntityMovementState arg2)
		{
			_aim.ShoulderOffset = arg2 
				is IPlayerFixedState 
				or IPlayerParachuteState
				? Vector3.zero : _initialShoulderOffset;

			switch (_movement.CurrentState)
			{
				// case IPlayerFixedState:
				// case IPlayerParachuteState:
				// 	_initialCameraDistance = _aim.CameraDistance;
				// 	_aim.CameraDistance = 16f;
				// 	break;
				default:
					if (_initialCameraDistance is not 0)
						_aim.CameraDistance = _initialCameraDistance;
					break;
			}
		}

		public override void OnUpdate(float deltaTime)
		{
			base.OnUpdate(deltaTime);
			_allowTPS.SetDisableElements("Aim",_equipService.Zoom.Allow);
		}

		private void OnToggleCamera(InputAction.CallbackContext obj)
		{
			enableTPS = !enableTPS;
			if (enableTPS)
			{
				_allowTPS.AddElement(this);
			}
			else
			{
				_allowTPS.RemoveElement(this);
			}
		}

		private void OnCameraActivated(bool obj)
		{
			
		}
	}

}