using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Cysharp.Threading.Tasks;
using Framework;
using Obfuz;
using PhxhSDK;
using PhxhSDK.AOT.Aspect;
using UnityEngine;

[ObfuzIgnore]
public partial class UIManager : Singlenton<UIManager>, IInitable, IUpdatable
{
    public const string UI_PREFAB_PATH = "Assets/Art_Out/UI/Prefab/{0}.prefab";

    public Dictionary<string, UIWindow> mMemoryWindows = new Dictionary<string, UIWindow>();

    // ✅ 使用独立的层级管理器
    private UICanvasLayerManager LayerManager => UICanvasLayerManager.Instance;
    
    private ScreenOrientation _currentOrientation;
    private Dictionary<string, string> _openingWindows = new Dictionary<string, string>();

    private List<UIWindow> _hideCache = new List<UIWindow>();
    private UIWindow _curFullScreen;

    private Dictionary<GameObject, UIWindow> _uiWindowObjDic = new Dictionary<GameObject, UIWindow>();
    public Dictionary<GameObject, UIWindow> UIWindowObjDic => _uiWindowObjDic;

    public Vector2 Size;
    /// <summary>
    /// UI和主相机屏幕缩放
    /// </summary>
    public Vector2 UIAndMainScreenScale;
    /// <summary>
    /// UI和UI屏幕缩放
    /// </summary>
    public Vector2 UIAndUIScreenScale;
    /// <summary>
    /// 禁用返回键计数
    /// </summary>
    private int disableBackCount;
    /// <summary>
    /// 是否响应返回键
    /// </summary>
    public bool IsEnableBack 
    {
        get { return disableBackCount <= 0; }
        set
        {
            if (value)
            {
                if (disableBackCount > 0)
                    --disableBackCount;
            }
            else
                ++disableBackCount;
        }
    }

    public void Init()
    {
        IsEnableBack = true;
        _AllWindowMeta();
        
        // 初始化层级管理器
        LayerManager.Initialize(UIRoot.Instance.GetAllLayerRoots());
        
        if (DeviceHelper.IsFullScreenIOS())
        {
            SetFullScreenIOS();
        }
        
        EventManager.Instance.Register(EventManager.EventName.Android_Click_Back, _OnAndroidClickBack);
        EventManager.Instance.Register(EventManager.EventName.ClearUIStack, (Action<string[]>)ClearHideStack);

        OnScreenSizeChange();

        AspectManager.Instance.ScreenSizeChange += OnScreenSizeChange;
    }

    public void Release()
    {
        LayerManager.Clear();
        AspectManager.Instance.ScreenSizeChange -= OnScreenSizeChange;
        EventManager.Instance.Unregister(EventManager.EventName.Android_Click_Back, _OnAndroidClickBack);
        EventManager.Instance.Unregister(EventManager.EventName.ClearUIStack, (Action<string[]>)ClearHideStack);
    }

    public bool disableUILogic = false;

    public void Update(float dt)
    {
        if (disableUILogic) return;
        foreach (var winKv in mMemoryWindows)
        {
            var window = winKv.Value;
            if (window != null && !window.IsClosing)
            {
                if (window.IsCreated() && window.gameObject)
                {
                    if (window.gameObject)
                    {
                        window.Update(dt);
                    }
                }
            }
        }

        _UpdateInputBlockTimer(dt);
    }

    #region UIWindow Manager

    public static void BindWindowObj(UIWindow window, GameObject uiObj)
    {
        if (window == null || uiObj == null)
        {
            if (window == null)
                DebugUtil.LogError("window is null");
            if (uiObj == null)
                DebugUtil.LogError("uiObj is null");
            return;
        }
        window.gameObject = uiObj.gameObject;
        window.transform = uiObj.transform;
        window.name = uiObj.name;
    }

    #endregion

    #region OpenWindowAPI
    /// <summary>
    /// 打开一个UI
    /// UIManager.Instance.OpenWindow("Common/GameUI")
    /// </summary>

    /// <summary>
    /// 创建并打开窗口
    /// </summary>
    /// <param name="path">窗口路径</param>
    /// <param name="data">传递的数据</param>
    /// <param name="overrideStackMode">覆盖栈模式（null则使用配置）。⚠️ 谨慎使用，大部分情况应使用配置</param>
    public async UniTask<UIWindow> CreateAndOpenWindow(string path, object data = null, UIStackMode? overrideStackMode = null)
    {
        DebugUtil.LogP($"打开窗口:{path}");
        if (mMemoryWindows.ContainsKey(path))
        {
            DebugUtil.LogG($"窗口已打开！！！{path}");
            //return null;
        }
        
        var window = await _LoadWindow(path, true);
        if (window != null)
        {
            // 初始化和显示窗口
            window.Init(data);
            window.ShowWindow(data);
    
            // 获取配置
            var config = GetWindowInfo(path);
            var stackMode = overrideStackMode ?? config.StackMode;
            
            // 1. 栈管理
            UINavigationManager.Instance.HandleWindowOpen(window, stackMode);
            
            // 2. 可见性管理
            UIWindowVisibilityManager.Instance.HandleVisibilityOnOpen(window, config.VisibilityStrategy);
        }
        
        return window;
    }
    
    public bool Back()
    {
        return false;
    }

    public bool RemoveWindow(string wName)
    {
        string windowName = wName;
        bool result = false;
        UIWindow window;
        if (mMemoryWindows.TryGetValue(windowName, out window))
        {
            LayerManager.RemoveWindow(window);
            mMemoryWindows.Remove(windowName);
            result = true;
        }
        return result;
    }
    
    /// <summary>
    /// 关闭窗口
    /// </summary>
    /// <param name="wName">窗口名称</param>
    /// <param name="destroy">是否销毁窗口</param>
    public void CloseWindow(string wName, bool destroy)
    {
        var window = GetOpenedWindowByPath<UIWindow>(wName);
        if (window != null)
        {
            window.CloseWindow(destroy);
        }
    }
    
    /// <summary>
    /// 打开已加载的窗口（显示并根据配置处理导航栈）
    /// 适用于预加载窗口的显示场景
    /// </summary>
    /// <param name="window">已加载的窗口</param>
    /// <param name="data">传递的数据（可选）</param>
    /// <param name="overrideStackMode">覆盖栈模式（null则使用配置）</param>
    public void OpenLoadedWindow(UIWindow window, object data = null, UIStackMode? overrideStackMode = null)
    {
        if (window == null)
        {
            DebugUtil.LogError("OpenLoadedWindow: window is null");
            return;
        }
        
        // 显示窗口
        window.ShowWindow(data);
        
        // 获取配置
        var config = GetWindowInfo(window.WindowName);
        var stackMode = overrideStackMode ?? config.StackMode;
        
        // 1. 栈管理
        UINavigationManager.Instance.HandleWindowOpen(window, stackMode);
        
        // 2. 可见性管理
        UIWindowVisibilityManager.Instance.HandleVisibilityOnOpen(window, config.VisibilityStrategy);
    }
    
    /// <summary>
    /// 打开已加载的窗口（通过路径）
    /// </summary>
    public void OpenLoadedWindow(string path, object data = null, UIStackMode? overrideStackMode = null)
    {
        var window = GetOpenedWindowByPath(path);
        if (window != null)
        {
            OpenLoadedWindow(window, data, overrideStackMode);
        }
        else
        {
            DebugUtil.LogError($"OpenLoadedWindow: window not found: {path}");
        }
    }

    public T GetOpenedWindowByPath<T>(string uipath) where T : UIWindow
    {
        var window = GetOpenedWindowByPath(uipath) as T;
        //return window.gameObject.activeSelf ? window : null;
        return window;
    }

    public UIWindow GetOpenedWindowByPath(string uipath)
    {
        if (string.IsNullOrEmpty(uipath))
        {
            DebugUtil.LogError("UIManager.GetOpenedWindowByPath, uipath is null or empty");
            return null;
        }
        if (mMemoryWindows.ContainsKey(uipath))
        {
            //return window.gameObject.activeSelf ? window : null;
            return mMemoryWindows[uipath];
        }
        
        return null;
    }

    public bool GetTopWindow(out UIWindow window, out UICanvasLayer layer, int banLayerMask)
    {
        return LayerManager.GetTopWindow(out window, out layer, banLayerMask);
    }

    public int LayerMask(UICanvasLayer layer)
    {
        return LayerManager.GetLayerMask(layer);
    }

    async void SetFullScreenIOS()
    {
        await UniTask.Delay(670);
        // while (true)
        // {
        //     var screenOrientation = DragonNativeBridge.GetScreenOrientation();
        //     if (screenOrientation != _currentOrientation)
        //     {
        //         _currentOrientation = screenOrientation;
        //         EventDispatcher.Instance.DispatchEvent(new ScreenOrientationChangedEvent(_currentOrientation));
        //     }
        //     yield return wait;
        // }
    }

    /// <summary>
    /// 加载窗口（不显示）
    /// 用于预加载场景
    /// </summary>
    public async UniTask<UIWindow> LoadWindow(string path)
    {
        return await _LoadWindow(path, false);
    }
    private async UniTask<UIWindow> _LoadWindow(string path, bool isActive = false)
    {

         string uipath = path;
        UIWindow window = null;

        WindowInfo wInfo;
        if (!_windowsInfo.ContainsKey(uipath))
        {
            //if (_windowsInfo.TryGetValue(uipath, out wInfo))
            {
                DebugUtil.LogError("Create ui fail: {0}, no windows info inited", uipath);
                return window;
            }
        }
        wInfo = _windowsInfo[uipath];
        var uiWindowLayer = wInfo.windowLayer;

        if (!mMemoryWindows.TryGetValue(uipath, out window))
        {
            if (_openingWindows.ContainsKey(uipath))
            {
                return window;
            }
            _openingWindows.Add(uipath, uipath);
            window = await UIRoot.Instance.CreateWindow(uipath, uiWindowLayer);
            _openingWindows.Remove(uipath);
            if (window != null)
            {
                mMemoryWindows[uipath] = window;
                window.WindowName = uipath;
                window.uiWindowLayer = uiWindowLayer;
            }
            else
            {
                DebugUtil.LogError("Create ui fail: {0}", uipath);
                return window;
            }
        }

        LayerManager.AddWindow(window);

        if (window == null)
        {
            DebugUtil.LogError("Create ui fail: {0}", uipath);
            return null;
        }
        
        if (!isActive)
        {
            window.gameObject.SetActive(false);
        }

        _uiWindowObjDic.TryAdd(window.gameObject, window);
        return window;
    }


    //展示全部已加载的NormalUI
    public void OpenLoadedNormalUI(string uiName, object data = null)
    {
        WindowInfo wInfo;
        wInfo = _windowsInfo[uiName];
        if (mMemoryWindows.ContainsKey(uiName))
        {
            mMemoryWindows[uiName].Init(data);
            mMemoryWindows[uiName].ShowWindow(data);
        }
    }


    public void ForeachUI(Action<UIWindow> action)
    {
        var windowList = mMemoryWindows.ToList();
        foreach (var kv in windowList)
        {
            var window = kv.Value;
            if (window != null)
            {
                action?.Invoke(kv.Value); 
            }
        }
    }

    public void CloseAllUIExcept(string path)
    {
        var windowList = mMemoryWindows.ToList();
        foreach (var kv in windowList)
        {
            var window = kv.Value;
            if(window.WindowName != path)
            {
                window.CloseWindow(destroy: true);
                mMemoryWindows.Remove(window.WindowName);
                LayerManager.RemoveWindow(window);
            }
        }    
        ClearHideStack();
    }

    #endregion

    #region ShowAndHide

    /// <summary>
    /// 隐藏所有UI
    /// 和 ShowAllUI 成对调用
    /// </summary>
    /// <param name="exceptions">不隐藏的UI窗口名称列表</param>
    public void HideAllUI(params string[] exceptions)
    {
        HideAllUI(UICanvasLayer.Max, exceptions);
    }

    /// <summary>
    /// 隐藏指定层级及以下的所有UI
    /// 和 ShowAllUI 成对调用
    /// </summary>
    /// <param name="maxLayer">最大层级（包含该层级及以下的所有UI都会被隐藏）</param>
    /// <param name="exceptions">不隐藏的UI窗口名称列表</param>
    public void HideAllUI(UICanvasLayer maxLayer, params string[] exceptions)
    {
        var hiddenWindows = LayerManager.HideWindowsUpToLayer(maxLayer, exceptions);
        _hideCache.AddRange(hiddenWindows);
    }

    /// <summary>
    /// 隐藏指定层级列表中的所有UI
    /// 和 ShowAllUI 成对调用
    /// </summary>
    /// <param name="layers">要隐藏的层级列表</param>
    /// <param name="exceptions">不隐藏的UI窗口名称列表</param>
    public void HideAllUI(UICanvasLayer[] layers, params string[] exceptions)
    {
        var hiddenWindows = LayerManager.HideWindowsInLayers(layers, exceptions);
        _hideCache.AddRange(hiddenWindows);
    }

    /// <summary>
    /// 和HideAllUI成对调用
    /// </summary>
    public void ShowAllUI()
    {
        foreach (var v in _hideCache)
        {
            var window = v;
            if (window != null)
                window.ShowWindow();
        }
        _hideCache.Clear();
    }

    public async void ShowClickShield(string uiPath, int time = 0)
    {
        //放到最上层
        if (!_windowsInfo.ContainsKey(uiPath))
        {
            return;
        }

        CreateAndOpenWindow(uiPath);

        mMemoryWindows.TryGetValue(uiPath, out var window);

        if (time > 0)
        {
            await UniTask.Delay(time);
            window.CloseWindow(destroy: true);
        }
    }

    public void CloseClickShield(string uiPath)
    {
        if (mMemoryWindows.ContainsKey(uiPath))
        {
            var window = mMemoryWindows[uiPath];
            window.CloseWindow(destroy: true);
        }
    }

    #endregion

    //根据路径判断UI界面是否打开
    public bool IsWindowOpening(string uiPath)
    {
        string windowName;
        if (_openingWindows.TryGetValue(uiPath, out windowName))
        {
            if (windowName != null)
            {
                return true;
            }
        }

        return false;
    }

    /// <summary>
    /// 关掉所有Normal层已打开的界面，保留传参的界面
    /// </summary>
    /// <param name="path"></param>
    public void CloseAllNormalExcept(string path, bool isShowAnim = true)
    {
        var windowsL = LayerManager.GetWindowsInLayer(UICanvasLayer.Normal);

        if (!mMemoryWindows.ContainsKey(path))
        {
            DebugUtil.LogError("请检查Home返回方法传入UI窗口路径！！！参数：{0}", path);
            return;
        }
        
        List<UIWindow> toBeRemoved = new List<UIWindow>();
        
        if (windowsL.Count > 0)
        {
            var node = windowsL.First;
            while (node != null)
            {
                var window = node.Value;
                if (window.WindowName != path)
                {
                    toBeRemoved.Add(window);
                }

                if (node == windowsL.Last)
                {
                    break;
                }
                
                node = node.Next;
            }
        }

        string[] strL = { path };
        ClearHideStack(strL);

        if (toBeRemoved.Count > 0)
        {
            for (int i = toBeRemoved.Count - 2; i >= 0; i--)
            {
                toBeRemoved[i].CloseWindow(destroy: true);
            }
        }

        if (UINavigationManager.Instance.IsWindowInStack(mMemoryWindows[path]))
        {
            mMemoryWindows[path].ShowWindow();
        }
    }

    /// <summary>
    /// 打开指定界面，并关闭其他界面
    /// </summary>
    /// <param name="paths"></param>
    /// <remarks>如果只需要关闭界面，请使用ClearAllNormalExcept方法</remarks> 
    public void CloseAllNormalExcept(params string[] paths)
    {
        bool isShowAnim = true;
        var windowsL = LayerManager.GetWindowsInLayer(UICanvasLayer.Normal);

        foreach (var path in paths)
        {
            if (!mMemoryWindows.ContainsKey(path))
            {
                DebugUtil.LogError("请检查Home返回方法传入UI窗口路径！！！参数：{0}", path);
                return;
            }
        }
        
        
        List<UIWindow> toBeRemoved = new List<UIWindow>();
        
        if (windowsL.Count > 0)
        {
            var node = windowsL.First;
            while (node != null)
            {
                var window = node.Value;
                if (!paths.Contains(window.WindowName))
                {
                    toBeRemoved.Add(window);
                }

                if (node == windowsL.Last)
                {
                    break;
                }
                
                node = node.Next;
            }
        }

        //string[] strL = { path };
        ClearHideStack(paths);

        if (toBeRemoved.Count > 0)
        {
            for (int i = toBeRemoved.Count - 2; i >= 0; i--)
            {
                toBeRemoved[i].CloseWindow(destroy: true);
            }
        }

        foreach (var path in paths)
        {
            if (UINavigationManager.Instance.IsWindowInStack(mMemoryWindows[path]))
            {
                mMemoryWindows[path].ShowWindow();
            }
        }
    }

    /// <summary>
    /// 清理除指定UI以外的界面(只包含关闭操作)
    /// </summary>
    /// <param name="paths"></param>
    public void ClearAllNormalExcept(params string[] paths)
    {
        bool isShowAnim = true;
        var windowsL = LayerManager.GetWindowsInLayer(UICanvasLayer.Normal);

        foreach (var path in paths)
        {
            if (!mMemoryWindows.ContainsKey(path))
            {
                DebugUtil.LogError("请检查Home返回方法传入UI窗口路径！！！参数：{0}", path);
                return;
            }
        }

        List<UIWindow> toBeRemoved = new List<UIWindow>();

        if (windowsL.Count > 0)
        {
            var node = windowsL.First;
            while (node != null)
            {
                var window = node.Value;
                if (!paths.Contains(window.WindowName))
                {
                    toBeRemoved.Add(window);
                }

                if (node == windowsL.Last)
                {
                    break;
                }

                node = node.Next;
            }
        }
        ClearHideStack(paths);

        if (toBeRemoved.Count > 0)
        {
            for (int i = toBeRemoved.Count - 2; i >= 0; i--)
            {
                toBeRemoved[i].CloseWindow(destroy: true);
            }
        }
    }

    private async void _OnAndroidClickBack()
    {
        if (!IsEnableBack)
            return;

        var topWindow = UINavigationManager.Instance.GetTopWindow();
        if (topWindow != null && await topWindow.OnBack())
        {
            return;
        }

        if (!CheckWindowCreated(UINameConst.UIBackReturn))
        {
            await CreateAndOpenWindow(UINameConst.UIBackReturn);
        }
    }
    
    public bool CheckWindowCreated(string uiPath)
    {
        if (mMemoryWindows.TryGetValue(uiPath, out var window))
        {
            return window.IsCreated();
        }
        return false;
    }

    private async void OnScreenSizeChange()
    {
        await UniTask.NextFrame(); // 必须等待一帧，等RectTransform大小刷新后获取

        RectTransform rectTrans = UIRoot.Instance.Root.GetComponent<RectTransform>();

        Size = new(rectTrans.sizeDelta.x, rectTrans.sizeDelta.y);
        UIAndMainScreenScale = new Vector3(Size.x / Screen.width, Size.y / Screen.height);
        UIAndUIScreenScale = new Vector3(Size.x / AspectManager.Instance.ScreenSize.x, Size.y / AspectManager.Instance.ScreenSize.y);
    }

    #region Navigation Stack Management
    
    /// <summary>
    /// 清空导航栈（保留指定窗口）
    /// </summary>
    public void ClearHideStack(params string[] windowName)
    {
        var stack = UINavigationManager.Instance.NavigationStack;
        
        // 倒序遍历，避免索引问题
        for (int i = stack.Count - 1; i >= 0; i--)
        {
            var window = stack[i];
            
            // 检查是否是要保留的窗口
            bool shouldKeep = false;
            for (int j = 0; j < windowName.Length; j++)
            {
                if (window.WindowName == windowName[j])
                {
                    shouldKeep = true;
                    break;
                }
            }
            
            if (!shouldKeep)
            {
                // 先从导航栈移除，再销毁窗口
                UINavigationManager.Instance.HandleWindowClose(window);
                window.CloseWindow(destroy: true);
            }
        }
    }
    
    /// <summary>
    /// 清空所有导航栈
    /// </summary>
    public void ClearHideStack()
    {
        var stack = UINavigationManager.Instance.NavigationStack;
        
        // 先复制列表，避免在遍历时修改集合
        var windowsToClose = new List<UIWindow>(stack);
        UINavigationManager.Instance.Clear();
        
        // 再关闭所有窗口
        for (int i = 0; i < windowsToClose.Count; i++)
        {
            windowsToClose[i].CloseWindow(destroy: true);
        }
    }
    
    #endregion
}