using System;
using System.Collections.Generic;
using AibisDream;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using UnityEngine.SceneManagement;

public class EyeTransitionManager : MonoBehaviour
{
    private float zoomDuration = 1.5f;

    public Image blackScreenImage;

    // 视图配置类
    [System.Serializable]
    public class ViewConfig
    {
        public ViewState viewState;
        public MonoBehaviour manager;
        public GameObject viewPanel; // 视图的面板
        public float cameraSize;

        public UnityEngine.Vector2 cameraPos;
    }

    // 在 Unity 编辑器中配置视图（不包括MainView）
    [SerializeField] private List<ViewConfig> viewConfigs;

    // 视图状态和视图配置的映射
    private Dictionary<ViewState, ViewConfig> viewConfigDictionary;

    // 是否正在进行视图过渡
    private bool isTransitioning = false;

    public Transform projector;

    // 视图状态枚举
    public enum ViewState
    {
        MainView,
        EyeView,
        UFView,
        MemoryView,
        // 为未来的视图添加更多状态
    }

    // 当前的视图状态，默认为 MainView
    private ViewState currentViewState = ViewState.MainView;

    public event Action OnGetMainView;
    public event Action OnGetDeepView;


    private void Awake()
    {
    }

    private void OnDestroy()
    {
        SceneManager.sceneUnloaded -= OnSceneUnloaded;
    }

    private void OnSceneUnloaded(Scene currentScene)
    {
        if (currentScene.name == "佩佩视觉模块")
        {
            //SaveState();
        }
    }

    private void Start()
    {
        // 初始化视图
        InitializeView();

        // 初始化视图状态和视图配置的映射
        viewConfigDictionary = new Dictionary<ViewState, ViewConfig>();
        foreach (var config in viewConfigs)
        {
            viewConfigDictionary[config.viewState] = config;
        }
    }

    private void InitializeView()
    {
        // 默认激活 MainView
        SetView(ViewState.MainView);
    }

    private void SetView(ViewState viewState)
    {
        // 如果是 MainView，就设置为默认值
        if (viewState == ViewState.MainView)
        {
            foreach (var viewConfig in viewConfigs)
            {
                if (viewConfig.viewPanel != null)
                    viewConfig.viewPanel.SetActive(false);
                //viewConfig.viewLifecycle?.OnExit(); // 初始化视图
            }

            return;
        }

        if (!viewConfigDictionary.TryGetValue(viewState, out ViewConfig config)) return;

        if (config.viewPanel != null)
        {
            config.viewPanel.SetActive(true);
        }
    }

    private void ExitView(ViewState viewState)
    {
        if (!viewConfigDictionary.TryGetValue(viewState, out ViewConfig config)) return;

        if (config.viewPanel != null)
        {
            config.viewPanel.SetActive(false);
        }
    }

    // 开始视图过渡
    private void StartTransition(ViewState targetViewState)
    {
        // 如果正在进行视图过渡，或者目标视图是当前视图，或者 MemoryProcess 正在处理，就不进行视图过渡
        //if (isTransitioning || currentViewState == targetViewState || (memoryProcess != null && memoryProcess.IsProcessing()))
        if (isTransitioning || currentViewState == targetViewState)
        {
            Debug.LogWarning("Transition is currently not allowed. Please wait until the current process is finished.");
            return;
        }

        // 开始视图过渡
        isTransitioning = true;

        if (targetViewState == ViewState.MainView)
        {
            Debug.Log("into mainview");
            // Zoom Out 的时候，先黑屏淡入
            blackScreenImage.gameObject.SetActive(true);
            Sequence zoomOutSequence = DOTween.Sequence();
            zoomOutSequence.Append(blackScreenImage.DOFade(1f, zoomDuration / 2));

            // 在黑屏淡入完成后关闭 Panel
            zoomOutSequence.AppendCallback(() => { ExitView(currentViewState); });

            // 开始淡出黑屏
            zoomOutSequence.Append(blackScreenImage.DOFade(0f, zoomDuration)
                .OnComplete(() => blackScreenImage.gameObject.SetActive(false)));
            zoomOutSequence.Insert(zoomDuration / 2, Camera.main.DOOrthoSize(5f, zoomDuration).SetEase(Ease.OutCubic));
            zoomOutSequence.Insert(zoomDuration / 2,
                Camera.main.transform.DOMove(new UnityEngine.Vector3(0, 0, -10), zoomDuration).SetEase(Ease.OutCubic));

            if (projector.localPosition.y <= -1)
            {
                zoomOutSequence.Append(projector.DOLocalMoveY(-1, zoomDuration).SetEase(Ease.OutCubic));
            }

            // 在整个动画完成后更新视图状态
            zoomOutSequence.OnComplete(() =>
            {
                currentViewState = ViewState.MainView;
                isTransitioning = false;
                OnGetMainView.Invoke();
                //MouseCursorManager.Instance.isInDeepView=false;
                DialogController.Instance.StartDialogNode("主维修界面游戏状态检查");
            });
        }

        else
        {
            if (!viewConfigDictionary.TryGetValue(targetViewState, out ViewConfig targetConfig)) return;

            // AudioManager.RandomPlayInteraction(targetConfig.soundName);
            // Zoom In 的时候，开始 Zoom
            Sequence zoomInSequence = DOTween.Sequence();

            float FadeTiming = zoomDuration / 4;
            if (targetViewState == ViewState.MemoryView)
            {
                FadeTiming *= 5f;

                zoomInSequence.Append(projector.DOLocalMoveY(-5, zoomDuration).SetEase(Ease.OutElastic, 0.5f));
                zoomInSequence.AppendCallback(() => { });
            }

            zoomInSequence.Append(Camera.main.DOOrthoSize(targetConfig.cameraSize, zoomDuration)
                .SetEase(Ease.OutCubic));
            zoomInSequence.Join(Camera.main.transform
                .DOMove(new UnityEngine.Vector3(targetConfig.cameraPos.x, targetConfig.cameraPos.y, -10), zoomDuration)
                .SetEase(Ease.OutCubic));

            // 在 Zoom 到一半时开始黑屏过渡
            zoomInSequence.Insert(FadeTiming,
                blackScreenImage.DOFade(1f, zoomDuration / 2)
                    .OnStart(() => blackScreenImage.gameObject.SetActive(true)));


            // 在整个 Zoom 完成后激活 Eye View
            zoomInSequence.OnComplete(() =>
            {
                if (zoomInSequence != null)
                {
                    zoomInSequence.Kill();
                }

                ExitView(currentViewState);
                SetView(targetViewState);
                FadeFromBlack(() =>
                {
                    //MouseCursorManager.Instance.isInDeepView=true;
                    currentViewState = targetViewState;
                    isTransitioning = false;
                    OnGetDeepView.Invoke();
                });
            });
        }
    }

    private void FadeFromBlack(TweenCallback onComplete)
    {
        blackScreenImage.DOFade(0f, 1f).OnComplete(() =>
        {
            blackScreenImage.gameObject.SetActive(false);
            onComplete?.Invoke();
        });
    }

    public void RequestViewChange(ViewState targetViewState)
    {
        StartTransition(targetViewState);
    }
}