using DG.Tweening;
using Sirenix.OdinInspector;
using SLSFramework.General;
using UnityEngine;
using Ease = DG.Tweening.Ease;

namespace Cielonos.MainGame.Characters
{
    public class CameraRotationSubmodule : SubmoduleBase<PlayerViewSubcontroller>
    {
        private Player player => owner.player;
        private PlayerViewSubcontroller viewSc => owner;
        private PlayerInputSubcontroller inputSc => player.inputSc;
        
        private const float RotateThreshold = 0.01f;
        
        [Title("Cinemachine Settings")]
        public float cinemachineTargetYaw;
        public float cinemachineEndLockYaw;
        public float cinemachineTargetPitch;
        public float topClamp = 70.0f;
        public float bottomClamp = -30.0f;
        public bool lockCameraPosition = false;
        
        [Title("Combat Recenter Settings")]
        public float recenterSmoothTime = 0.1f; // 平滑时间，越小转得越快
        private float recenterVelocity; // SmoothDamp使用的速度变量
        private float targetRecenterYaw; // 目标角度
        private bool isRecentering = false; // 是否正在校准
        private float recenterTimer = 0.0f; // 校准剩余时间
        
        public CameraRotationSubmodule(PlayerViewSubcontroller owner, float initialYaw) : base(owner)
        {
            this.cinemachineTargetYaw = initialYaw;
        }
        
        public void Update()
        {
            if (inputSc.Look.sqrMagnitude >= RotateThreshold && !lockCameraPosition)
            {
                isRecentering = false;
                float deltaTimeMultiplier = inputSc.CurrentScheme == "KeyboardMouse" ? 1.0f : Time.deltaTime;
                //if (!viewSc.lockTargetModule.isLockedMelee)
                {
                    cinemachineTargetYaw += inputSc.Look.x * deltaTimeMultiplier;
                    cinemachineTargetPitch += inputSc.Look.y * deltaTimeMultiplier;
                }
            }
            else if (isRecentering)
            {
                recenterTimer -= Time.deltaTime;
                
                if (recenterTimer <= 0)
                {
                    isRecentering = false;
                }
                else
                {
                    cinemachineTargetYaw = Mathf.SmoothDampAngle(cinemachineTargetYaw, targetRecenterYaw, ref recenterVelocity, recenterSmoothTime);
                }
            }

            cinemachineTargetYaw = MathExtensions.ClampAngle(cinemachineTargetYaw, float.MinValue, float.MaxValue);
            cinemachineTargetPitch = MathExtensions.ClampAngle(cinemachineTargetPitch, bottomClamp, topClamp);
            
            
            if (viewSc.lockTargetModule.isUsingLockTargetCamera)
            {
                cinemachineEndLockYaw = viewSc.lockingTargetCamera.transform.eulerAngles.y;
            }
            else
            {
                viewSc.cameraRoot.rotation = Quaternion.Euler(
                    cinemachineTargetPitch /*- viewSc.muzzleLiftModule.currentMuzzlePositionY*/, cinemachineTargetYaw, 0.0f);
            }
            
            /*
            if (player.motionController.characterRotationType == PlayerMotionController.CharacterRotationType.ByAiming)
            {
                player.transform.rotation = Quaternion.Euler(0.0f, cinemachineTargetYaw, 0.0f);

                if (viewSc.lockTargetModule.isLockedMelee)
                {
                    //cinemachineEndLockYaw = player.viewController.lockingCamera.transform.eulerAngles.y;
                    //player.transform.rotation = Quaternion.Euler(0.0f, cinemachineEndLockYaw, 0.0f);
                }
            }
            else
            {
                if (viewSc.lockTargetModule.isLockedMelee)
                {
                    cinemachineEndLockYaw = viewSc.lockingCamera.transform.eulerAngles.y;
                }
            }
            */
        }
        
        /// <summary>
        /// [新增] 触发相机战斗校准
        /// </summary>
        /// <param name="attackDirection">攻击的方向向量 (通常是 player.transform.forward)</param>
        /// <param name="duration">校准持续时间 (建议 0.2f ~ 0.5f)</param>
        public void TriggerCameraRecenter(Vector3 attackDirection, float duration = 0.2f)
        {
            if (attackDirection.sqrMagnitude < 0.01f) return;

            // 计算目标角度
            Quaternion targetRot = Quaternion.LookRotation(attackDirection);
            targetRecenterYaw = targetRot.eulerAngles.y;
            
            // 激活状态
            recenterTimer = duration;
            isRecentering = true;
        }

        private bool tt;
        
        /// <summary>
        /// 同步相机旋转到当前摄像机朝向
        /// </summary>
        public void SyncRotationWithCamera()
        {
            // 确保获取的是当前正在起作用的锁定相机的旋转
            var camera = viewSc.currentCamera; 
            Vector3 currentEuler = camera.transform.eulerAngles;

            float yaw = currentEuler.y;
            float pitch = currentEuler.x;

            // --- 核心修复：处理欧拉角跨度问题 ---
            // 如果 pitch > 180 (例如 355), 则转为负数 ( -5 )
            if (pitch > 180) pitch -= 360; 

            isRecentering = false;
    
            // 更新目标值
            cinemachineTargetYaw = yaw;
            cinemachineTargetPitch = pitch;

            // --- 立即应用旋转 ---
            // 强制立即更新一次 cameraRoot，防止等待下一帧 Update 产生的跳变
            viewSc.cameraRoot.rotation = Quaternion.Euler(cinemachineTargetPitch, cinemachineTargetYaw, 0.0f);
        }
    }
}