using Fantasy;
using Fantasy.Entitas;
using Fantasy.Entitas.Interface;
using UnityEngine;
using UnityEngine.InputSystem;
using Log = NBC.Log;

namespace NBF
{
    public class PlayerInput : Entity
    {
        public Player Player { get; private set; }
        public PlayerView View { get; private set; }

        #region 生命周期

        public class PlayerViewAwakeSystem : AwakeSystem<PlayerInput>
        {
            protected override void Awake(PlayerInput self)
            {
                self.Player = self.GetParent<Player>();
                self.View = self.Player.GetComponent<PlayerView>();
                self.AddInputEvent();
            }
        }

        public class PlayerViewUpdateSystem : UpdateSystem<PlayerInput>
        {
            protected override void Update(PlayerInput self)
            {
                self.UpdateMove();
            }
        }

        public class PlayerViewDestroySystem : DestroySystem<PlayerInput>
        {
            protected override void Destroy(PlayerInput self)
            {
                self.RemoveInputEvent();
            }
        }

        #endregion

        #region Input

        private void AddInputEvent()
        {
            InputManager.OnPlayerPerformed += OnPlayerCanceled;
            InputManager.OnPlayerPerformed += OnPlayerPerformed;

            InputManager.OnPlayerValueCanceled += OnPlayerValueCanceled;
            InputManager.OnPlayerValuePerformed += OnPlayerValuePerformed;
        }

        private void RemoveInputEvent()
        {
            InputManager.OnPlayerPerformed += OnPlayerCanceled;
            InputManager.OnPlayerPerformed += OnPlayerPerformed;

            InputManager.OnPlayerValueCanceled += OnPlayerValueCanceled;
            InputManager.OnPlayerValuePerformed += OnPlayerValuePerformed;
        }

        private void OnPlayerPerformed(string action)
        {
            if (action == InputDef.Player.Run)
            {
                Player.Run = true;
            }
        }

        private void OnPlayerCanceled(string action)
        {
            if (action == InputDef.Player.Run)
            {
                Player.Run = false;
            }
            else if (action == InputDef.Player.ToBag)
            {
                //取消手持物品
                Log.Info($"取消手持物品");
                Player.UnUseItem();
                // Game.Instance.StartCoroutine(UnUseItem());
            }
            else if (action.StartsWith(InputDef.Player.QuickStarts))
            {
                var index = int.Parse(action.Replace(InputDef.Player.QuickStarts, string.Empty));
                Log.Info($"快速使用===={index}");
                var item = RoleModel.Instance.GetSlotItem(index - 1);
                if (item != null)
                {
                    Player.UseItem(item);
                }
            }
        }

        private void OnPlayerValueCanceled(InputAction.CallbackContext context)
        {
            var actionName = context.action.name;
            if (actionName == InputDef.Player.Move)
            {
                Player.MoveInput = Vector2.zero;
            }
        }

        private void OnPlayerValuePerformed(InputAction.CallbackContext context)
        {
            var actionName = context.action.name;
            if (actionName == InputDef.Player.Move)
            {
                var v2 = context.ReadValue<Vector2>();
                Player.MoveInput = v2;
            }
            else if (actionName == InputDef.Player.Look)
            {
            }
        }

        #endregion

        #region Move

        private Quaternion _lastRotation;

        private void UpdateMove()
        {
            UpdateGrounded();
            ProcessMoveStates();
            UpdateLookInput();
        }

        private void ProcessMoveStates()
        {
            {
                var num2 = Player.Run ? 7 : 5;
                Vector3 vector2 = View.Unity.FirstPerson.GetRightVector() * Player.MoveInput.x * num2;
                vector2 += View.Unity.FirstPerson.GetForwardVector() * Player.MoveInput.y * num2;
                // if (checkWaterBound) 
                // {
                //     SetMovementDirectionWithRaycastCheck(vector2);
                // }
                // else
                {
                    View.Unity.FirstPerson.SetMovementDirection(vector2);
                }
            }
        }

        private void UpdateGrounded()
        {
            Player.IsGrounded = View.Unity.FirstPerson.IsGrounded();
            Player.Speed = View.Unity.FirstPerson.velocity.magnitude;

            Quaternion rotation = View.Unity.FirstPerson.transform.rotation;

            // 计算当前帧与上一帧的旋转差异
            Quaternion rotationDelta = rotation * Quaternion.Inverse(_lastRotation);

            // 将四元数转换为角度轴表示
            rotationDelta.ToAngleAxis(out float angle, out Vector3 axis);

            // 确保角度在0-360范围内
            if (angle > 180f) angle -= 360f;

            // 获取Y轴旋转分量（归一化处理）
            float yRotation = 0f;
            if (Mathf.Abs(angle) > 0.001f && Mathf.Abs(axis.y) > 0.1f)
            {
                // 计算Y轴方向的旋转角度（考虑旋转轴方向）
                yRotation = angle * Mathf.Sign(axis.y);
            }

            float maxTurnSpeed = 180f; // 度/秒
            // 转换为角速度并归一化到[-1, 1]
            float angularSpeed = yRotation / Time.deltaTime;
            float turnValue = Mathf.Clamp(angularSpeed / maxTurnSpeed, -1f, 1f);


            Player.RotationSpeed = turnValue;

            _lastRotation = rotation;
        }

        #endregion

        #region Look

        private void UpdateLookInput()
        {
            Vector2 value = InputManager.GetLookInput();
            var u3d = View.Unity;
            u3d.FirstPerson.AddControlYawInput(value.x * u3d.MouseSensitivity);
            u3d.FirstPerson.AddControlPitchInput((u3d.invertLook ? 0f - value.y : value.y) * u3d.MouseSensitivity,
                u3d.minPitch, u3d.maxPitch);
        }

        #endregion
    }
}