using UnityEngine;
using AibisDream.FixSystem;
using Cinemachine;
using AibisDream.Framework;
using DG.Tweening;
using System.Collections;
using AibisDream.Kit;

namespace AibisDream
{
    public class CuttingManager : MonoBehaviour
    {
        public BubbleSlotGroup bubbleSlotGroup;
        [Header("切割组件")]
        public GameObject gearFollowerPrefab;
        public GameObject entrancePanelPrefab; // 入场面板预制体
        public float entranceDuration = 1.5f; // 入场动画时长
        public float exitDuration = 1.5f; // 退场动画时长
        public float panelOffsetY = 2f; // 面板在相机视野下方的偏移量
        
        private GearFollower gearFollower;
        private bool isCuttingMode = false;
        private bool isEntranceComplete = false; // 入场是否完成
        private bool isGearActive = false; // 标记gear是否已激活
        private BodyModule _targetModule;
        private SpriteRenderer _targetSpriteRenderer;
        private GameObject entrancePanel; // 入场面板实例
        private Camera _mainCamera;
        private CinemachineVirtualCamera _currentVirtualCamera;

        private void Awake()
        {
            // 注册
            FixSystemCenter.SystemDic.Register(this);
            var virtualCam1 = transform.Find("Cut Emo Camera").GetComponent<ICinemachineCamera>();
            var virtualCam2 = transform.Find("Cut Memory Camera").GetComponent<ICinemachineCamera>();
            var virtualCam3 = transform.Find("Cut Logic Camera").GetComponent<ICinemachineCamera>();
            var virtualCam4 = transform.Find("Cut Emo Deep Camera").GetComponent<ICinemachineCamera>();
            var virtualCam5 = transform.Find("Cut Memory Deep Camera").GetComponent<ICinemachineCamera>();
            var virtualCam6 = transform.Find("Cut Logic Deep Camera").GetComponent<ICinemachineCamera>();
            CameraKit.Instance.RegisterCamera(CameraEnum.CutEmo, virtualCam1);
            CameraKit.Instance.RegisterCamera(CameraEnum.CutMemory, virtualCam2);
            CameraKit.Instance.RegisterCamera(CameraEnum.CutLogic, virtualCam3);
            CameraKit.Instance.RegisterCamera(CameraEnum.CutEmoDeep, virtualCam4);
            CameraKit.Instance.RegisterCamera(CameraEnum.CutMemoryDeep, virtualCam5);
            CameraKit.Instance.RegisterCamera(CameraEnum.CutLogicDeep, virtualCam6);

            _mainCamera = Camera.main;
        }

        private void Update()
        {
            if (isCuttingMode && !isGearActive && gearFollower != null)
            {
                // 检测点击
                if (Input.GetMouseButtonDown(0))
                {
                    Ray ray = _mainCamera.ScreenPointToRay(Input.mousePosition);
                    RaycastHit2D hit = Physics2D.Raycast(ray.origin, ray.direction);
                    
                    if (hit.collider != null && hit.collider.gameObject.GetComponent<GearFollower>() != null)
                    {
                        gearFollower=hit.collider.gameObject.GetComponent<GearFollower>();
                        ActivateGear();
                    }
                }
            }
            else if (isCuttingMode && isGearActive && gearFollower != null)
            {
                gearFollower.GearUpdate();
            }
        }
        public void ClearCutLine()
        {
            if (gearFollower != null)
            {
                gearFollower.ClearCutLine();
                Destroy(gearFollower.gameObject);
                gearFollower = null;
            }
        }

        private void ActivateGear()
        {
            AudioManager.Instance.PlaySfx("event:/FollowInput/drill");
            isGearActive = true;
            if (gearFollower != null)
            {
                // 解除父子关系
                gearFollower.transform.SetParent(null);
                gearFollower.Init(_targetSpriteRenderer);
            }

            // 面板退场
            if (entrancePanel != null)
            {
                Vector3 startPosition = GetPanelSpawnPosition();
                entrancePanel.transform.DOMove(startPosition, exitDuration)
                    .SetEase(Ease.InBack)
                    .OnComplete(() => {
                        Destroy(entrancePanel);
                        entrancePanel = null;
                    });
            }
        }

        public IEnumerator StartCutting(BodyModule targetModule)
        {
            // 检查参数
            if (targetModule == null)
            {
                Debug.LogError("targetModule 为空");
                yield break;
            }
            
            // 保存目标模块
            _targetModule = targetModule;
            
            // 获取目标精灵渲染器
            _targetSpriteRenderer = targetModule.GetCutSpriteRenderer();
            if (_targetSpriteRenderer == null)
            {
                Debug.LogError("targetSprite 为空");
                yield break;
            }
            
            // 停止之前的切割
            StopCutting();
            
            // 设置切割模式
            isCuttingMode = true;
            isEntranceComplete = false;
            
            // 创建入场面板
            CreateEntrancePanel();

            // 等待入场动画完成
            yield return new WaitUntil(() => isEntranceComplete);
        }

        private Vector3 GetPanelSpawnPosition()
        {
            if (_mainCamera == null)
            {
                _mainCamera = Camera.main;
            }


            // 获取相机的位置和旋转
            Vector3 cameraPosition = _mainCamera.transform.position;
            Quaternion cameraRotation = _mainCamera.transform.rotation;

            // 计算相机视野下方的位置
            Vector3 forward = cameraRotation * Vector3.forward;
            Vector3 right = cameraRotation * Vector3.right;
            Vector3 up = cameraRotation * Vector3.up;

            // 计算相机视野的底部中心点
            float height = 2f * Mathf.Tan(_mainCamera.fieldOfView * 0.5f * Mathf.Deg2Rad) * _mainCamera.nearClipPlane;
            float width = height * _mainCamera.aspect;

            // 计算面板的起始位置（在相机视野下方）
            Vector3 bottomCenter = cameraPosition + forward * _mainCamera.nearClipPlane - up * (height * 0.5f + panelOffsetY);
            
            return bottomCenter;
        }

        private void CreateEntrancePanel()
        {
            // 获取基于当前相机位置的生成位置
            Vector3 startPosition = GetPanelSpawnPosition();
            if (startPosition == Vector3.zero)
            {
                Debug.LogError("无法获取面板生成位置");
                return;
            }

            // 创建入场面板，保持原始旋转
            entrancePanel = Instantiate(entrancePanelPrefab, startPosition, Quaternion.Euler(0,0,-90));
            
            // 获取GearFollower组件（作为子物体）
            gearFollower = entrancePanel.GetComponentInChildren<GearFollower>();
            if (gearFollower == null)
            {
                Debug.LogError("入场面板预制体中没有找到GearFollower组件");
                return;
            }
            
            // 计算相机视野高度
            float height = 2f * Mathf.Tan(_mainCamera.fieldOfView * 0.5f * Mathf.Deg2Rad) * _mainCamera.nearClipPlane;
            
            // 计算目标位置（相机视野中心偏下）
            Vector3 targetPosition = startPosition + _mainCamera.transform.up * 3.5f;
            
            // 执行入场动画
            entrancePanel.transform.DOMove(targetPosition, entranceDuration)
                .SetEase(Ease.OutBack)
                .OnComplete(() => {
                    isEntranceComplete = true;
                });
        }

        public void OnCutComplete()
        {
            isCuttingMode = false;
            isEntranceComplete = false;
            isGearActive = false;
            
            if (gearFollower != null)
            {
                gearFollower.FinishCutting();
            }

            // 如果面板还存在，删除它
            if (entrancePanel != null)
            {
                Destroy(entrancePanel);
                entrancePanel = null;
            }
        }
        public void UpdateModule()
        {
            if (_targetModule != null)
            {
                _targetModule.OnCuttingDown();
            }
        }
        public void SetCutTextVisible(bool visible)
        {
            if (_targetModule != null)
            {
                _targetModule.SetCutTextVisible(visible);
            }
        }

        public void UpdateCutProgress(float progress)
        {
            if (_targetModule != null)
            {
                _targetModule.UpdateCutProgress(progress);
            }
        }
        public void StartCutTextFlicker()
        {
            if (_targetModule != null)
            {
                _targetModule.StartCutTextFlicker();
            }
        }
        public void StopCutTextFlicker()
        {
            if (_targetModule != null)
            {
                _targetModule.StopCutTextFlicker();
            }
        }

        public void StopCutting()
        {
            isCuttingMode = false;
            isEntranceComplete = false;
            isGearActive = false;
            
            if (_targetModule != null)
            {
                _targetModule.StopCutTextFlicker();
            }
            
            if (entrancePanel != null)
            {
                // 获取当前相机位置
                Vector3 startPosition = GetPanelSpawnPosition();
                
                // 执行退场动画
                entrancePanel.transform.DOMove(startPosition, exitDuration)
                    .SetEase(Ease.InBack)
                    .OnComplete(() => {
                        Destroy(entrancePanel);
                        entrancePanel = null;
                        gearFollower = null;
                    });
            }
            else if (gearFollower != null)
            {
                Destroy(gearFollower.gameObject);
                gearFollower = null;
            }
        }
    }
}