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

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>();

    private Dictionary<int, LinkedList<UIWindow>> _layerList = new Dictionary<int, LinkedList<UIWindow>>(16);
    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>
    /// 是否响应返回键
    /// </summary>
    public bool IsEnableBack { get; set; }

    public void Init()
    {
        IsEnableBack = true;
        _AllWindowMeta();
        if (DeviceHelper.IsFullScreenIOS())
        {
            SetFullScreenIOS();
        }
        
        EventManager.Instance.Register(EventManager.EventName.Android_Click_Back, _OnAndroidClickBack);
        EventManager.Instance.Register(EventManager.EventName.HideAllUIExcept, (Action<string[]>)_OnHideAllUIExcept);
        EventManager.Instance.Register(EventManager.EventName.ShowAllUIHiden, _OnShowAllUIHiden);
        EventManager.Instance.Register(EventManager.EventName.ClearUIStack, (Action<string[]>)ClearHideStack);

        OnScreenSizeChange();

        AspectManager.Instance.ScreenSizeChange += OnScreenSizeChange;
    }

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

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

        _OnClickUpdate(dt);
    }

    #region UIWindow Manager

    public static void BindWindowObj(UIWindow window, GameObject uiObj)
    {
        window.gameObject = uiObj.gameObject;
        window.transform = uiObj.transform;
        window.rectTransform = uiObj.GetComponent<RectTransform>();
        window.name = uiObj.name;
    }

    #endregion

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

    //重载一下，传参的Open
    public async UniTask<UIWindow> CreateAndOpenWindow(string path, object data = null, ECanvasRoot eCanvasRoot = ECanvasRoot.Static1)
    {
        DebugUtil.LogP($"打开窗口:{path}");
        if (mMemoryWindows.ContainsKey(path))
        {
            DebugUtil.LogG($"窗口已打开！！！{path}");
            //return null;
        }
        
        var root = UIRoot.Instance.RootDic[eCanvasRoot];
        var window = await _LoadWindow(path, true, eCanvasRoot);
        if (window != null)
        {
            if (window.uiWindowLayer == UIWindowLayer.Normal)
            {
                if (CheckWindowIsFullScreen(window))
                {
                    int idx = _uiWindowStack.Count - 1;
                    while (idx >= 0)
                    {
                        var latestWindow = _uiWindowStack[idx--];
                        latestWindow.CloseWindow(UIWindowCloseType.HideAndPush);
                        if (CheckWindowIsFullScreen(latestWindow))
                        {
                            break;
                        }
                    }
                }
                
            }
    
            
            for (int i = root.transform.childCount - 1; i >=0; i--)
            {
                var winGo = root.transform.GetChild(i).gameObject;
                if (_uiWindowObjDic.TryGetValue(winGo, out var win))
                {
                    if (win != null)
                    {
                        if (win.uiWindowLayer > window.uiWindowLayer)
                        {
                            window.transform.SetSiblingIndex(i);
                        }
                    }
                }
            }
            window.CreateWindow(data, GetIsNotSetCameraByPath(path));
    
            if (window.uiWindowLayer == UIWindowLayer.Normal)
            {
                PushWindow(window);
            }
            
        }
        
        return window;
    }
    
    
    //先打开后关闭
    // public async UniTask<UIWindow> CreateAndOpenWindow(string path, object data = null)
    // {
    //     if (mMemoryWindows.ContainsKey(path))
    //     {
    //         DebugUtil.LogError($"窗口已打开！！！{path}");
    //         //return null;
    //     }
    //     
    //     var window = await _LoadWindow(path, true);
    //     if (window != null)
    //     {
    //         var root = UIRoot.Instance.Root;
    //         for (int i = root.transform.childCount - 1; i >=0; i--)
    //         {
    //             var winGo = root.transform.GetChild(i).gameObject;
    //             if (_uiWindowObjDic.TryGetValue(winGo, out var win))
    //             {
    //                 if (win != null)
    //                 {
    //                     if (win.uiWindowLayer > window.uiWindowLayer)
    //                     {
    //                         window.transform.SetSiblingIndex(i);
    //                     }
    //                 }
    //             }
    //         }
    //         window.CreateWindow(data, GetIsNotSetCameraByPath(path));
    //         
    //         if (window.uiWindowLayer == UIWindowLayer.Normal)
    //         {
    //             if (CheckWindowIsFullScreen(window))
    //             {
    //                 int idx = _uiWindowStack.Count - 1;
    //                 while (idx >= 0)
    //                 {
    //                     var latestWindow = _uiWindowStack[idx--];
    //                     var bNotSet = latestWindow.IsNotSetMainCamera;
    //                     latestWindow.IsNotSetMainCamera = true;
    //                     latestWindow.CloseWindow(UIWindowCloseType.HideAndPush);
    //                     latestWindow.IsNotSetMainCamera = bNotSet;
    //                     if (CheckWindowIsFullScreen(latestWindow))
    //                     {
    //                         break;
    //                     }
    //                 }
    //             }
    //             
    //         }
    //
    //         if (window.uiWindowLayer == UIWindowLayer.Normal)
    //         {
    //             PushWindow(window);
    //         }
    //         
    //     }
    //     
    //     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))
        {
            LayerListRemoveWindow(window);
            mMemoryWindows.Remove(windowName);
            result = true;
        }
        return result;
    }

    public void CloseWindow(string wName, UIWindowCloseType closeType = UIWindowCloseType.HideAndDestroy, int playAnim = 0)
    {
        var window = GetOpenedWindowByPath<UIWindow>(wName);
        if (window != null)
        {
            window.CloseWindow(closeType, playAnim);
        }
    }

    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;
    }
    
    
    void LayerListInsertWindow(UIWindow window)
    {
        try
        {
            if (window != null)
            {
                LinkedList<UIWindow> currentLayerWindows;
                if (_layerList.TryGetValue((int) window.uiWindowLayer, out currentLayerWindows)
                    && currentLayerWindows != null
                    && currentLayerWindows.Count > 0)
                {
                    if (currentLayerWindows.Remove(window))
                    {

                    }

                    currentLayerWindows.AddLast(window);
                    //DebugUtil.Log($"{window.WindowName} sibling index is {window.transform.GetSiblingIndex()}");
                    //return;
                }
                else
                {
                    if (currentLayerWindows == null)
                    {
                        currentLayerWindows = new LinkedList<UIWindow>();
                        _layerList.Add((int) window.uiWindowLayer, currentLayerWindows);
                    }

                    currentLayerWindows.AddLast(window);
                }

                int siblingIndex = 5; // 让出loading其他想挂在canvas下的奇怪东西
                LinkedList<UIWindow> layerWindows;
                for (int i = 0; i <= (int) UIWindowLayer.Max; i++)
                {
                    if (_layerList.TryGetValue(i, out layerWindows) && layerWindows != null)
                    {
                        if (layerWindows.Count > 0)
                        {
                            var e = layerWindows.GetEnumerator();
                            while (e.MoveNext())
                            {
                                var currWindow = e.Current;
                                if (currWindow != null)
                                    currWindow.transform?.SetSiblingIndex(siblingIndex++);
                            }
                        }
                    }
                }

                var index = window.transform.GetSiblingIndex();
                //DebugUtil.Log($"{window.WindowName} sibling index is {index}");
            }
        }
        catch (Exception e)
        {
            DebugUtil.LogError(e);
            DebugUtil.LogError("{0}.LayerListInsertWindow error, window name = {1}", GetType(), window.name);
        }

    }

    void LayerListRemoveWindow(UIWindow window)
    {
        try
        {
            if (window != null)
            {
                LinkedList<UIWindow> currentLayerWindows;
                if (_layerList.TryGetValue((int)window.uiWindowLayer, out currentLayerWindows))
                {
                    currentLayerWindows?.Remove(window);
                }
            }
        }
        catch (Exception e)
        {
            DebugUtil.LogError(e);
        }
        
    }

    public bool GetTopWindow(out UIWindow window, out UIWindowLayer layer, int banLayerMask)
    {
        for (int i = (int)UIWindowLayer.Max; i >= 0; i--)
        {
            if (((1 << i) & banLayerMask) == 0)
            {
                LinkedList<UIWindow> highLayerWindows;
                if (_layerList.TryGetValue(i, out highLayerWindows))
                {
                    if (highLayerWindows.Count > 0)
                    {
                        window = highLayerWindows.Last.Value;
                        if (window != null)
                        {
                            layer = (UIWindowLayer)i;
                            return true;
                        }
                    }
                }
            }
        }

        window = null;
        layer = UIWindowLayer.Max;
        return false;
    }

    public int LayerMask(UIWindowLayer layer)
    {
        return 1 << ((int)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;
        // }
    }

    public async UniTask<UIWindow> LoadWindow(string path, ECanvasRoot eCanvasRoot = ECanvasRoot.Static1)
    {
        return await _LoadWindow(path, false, eCanvasRoot);
    }
    private async UniTask<UIWindow> _LoadWindow(string path, bool isActive = false, ECanvasRoot eCanvasRoot = ECanvasRoot.Static1)
    {

         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, eCanvasRoot);
            _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;
            }
        }

        LayerListInsertWindow(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].CreateWindow(data, wInfo.NotSetMainCamera);
        }
    }


    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 CloseAllUI(UIWindowCloseType closeType )
    {
        var windowList = mMemoryWindows.ToList();
        foreach (var kv in windowList)
        {
            var window = kv.Value;
            window.CloseWindow(closeType);
        }

        if (closeType == UIWindowCloseType.HideAndDestroy)
        {
            mMemoryWindows.Clear();
            _layerList.Clear();
            ClearHideStack();
        }
    }

    public void CloseAllUIExcept(string path)
    {
        var windowList = mMemoryWindows.ToList();
        foreach (var kv in windowList)
        {
            var window = kv.Value;
            if(window.WindowName != path)
            {
                window.CloseWindow(UIWindowCloseType.ForceDestroy);
                mMemoryWindows.Remove(window.WindowName);
                var layer=window.uiWindowLayer;
                _layerList[(int)layer].Remove(window);
                if(_layerList[(int)layer].Count==0)
                {
                    _layerList.Remove((int)layer);
                }
            }
        }    
        ClearHideStack();
    }

    #endregion

    #region ShowAndHide

    /// <summary>
    /// 和ShowAllUI成都调用
    /// </summary>
    /// <param name="exceptions"></param>
    public void HideAllUI(params string[] exceptions)
    {
        var windowList = mMemoryWindows.ToList();
        foreach (var kv in windowList)
        {
            var window = kv.Value;
            if (window.uiWindowLayer > UIWindowLayer.Normal)
            {
                continue;
            }
            if (window.gameObject.activeInHierarchy && !exceptions.Contains(window.WindowName))
            {
                _hideCache.Add(window);
                window.HideWindow(true);
            }
        }
    }

    /// <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();
    }

    /// <summary>
    /// 展示界面
    /// </summary>
    /// <param name="path"></param>
    /// <param name="isMainCameraClose"></param> 展示界面时是否关闭场景主相机
    public void Show(string path, bool isMainCameraClose = false)
    {
        if (mMemoryWindows.TryGetValue(path, out var window))
        {
            if (!window.gameObject.activeInHierarchy)
            {
                window.ShowWindow();
                if (isMainCameraClose)
                {
                    var curCameraActive = CameraManager.Instance.CheckMainCameraIsActive();
                    if (curCameraActive)
                    {
                        CameraManager.Instance.SetMainCameraActive(false);
                    }
                }
            }
        }
    }

    /// <summary>
    /// 隐藏
    /// </summary>
    /// <param name="path"></param>
    /// <param name="isOnlyHide"></param>
    /// <param name="isMainCameraActive"></param> 隐藏界面时是否打开场景主相机
    public void Hide(string path, bool isOnlyHide = false, bool isMainCameraActive = false)
    {
        if (mMemoryWindows.TryGetValue(path, out var window))
        {
            if (window.gameObject.activeInHierarchy)
            {
                window.HideWindow(isOnlyHide);
                if (isMainCameraActive)
                {
                    var curCameraActive = CameraManager.Instance.CheckMainCameraIsActive();
                    if (!curCameraActive)
                    {
                        CameraManager.Instance.SetMainCameraActive(true);
                    }
                }
            }
        }
    }

    public async void ShowUITips(string uiName, string content, int showTime = 1500)
    {
        //放到最上层
        if (!_windowsInfo.ContainsKey(uiName))
        {
            return;
        }
        
        var window = await CreateAndOpenWindow(uiName, content);
        await UniTask.Delay(showTime);
        window.CloseWindow();
    }

    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(UIWindowCloseType.HideAndDestroy);
        }
    }

    public void CloseClickShield(string uiPath)
    {
        if (mMemoryWindows.ContainsKey(uiPath))
        {
            var window = mMemoryWindows[uiPath];
            window.CloseWindow(UIWindowCloseType.HideAndDestroy);
        }
    }
    
    private void _OnHideAllUIExcept(params string[] exceptions)
    {
        HideAllUI(exceptions);
    }

    private void _OnShowAllUIHiden()
    {
        ShowAllUI();
    }

    #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 = _GetLayerWindowList(UIWindowLayer.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>();
        // UIWindow lastWindow = null;
        // if (isShowAnim)
        // {
        //     lastWindow = PopWindow();
        // }
        
        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 (isShowAnim && lastWindow != null && lastWindow.WindowName != path)
        // {
        //     lastWindow.CloseWindow();
        // }

        if (toBeRemoved.Count > 0)
        {
            for (int i = toBeRemoved.Count - 2; i >= 0; i--)
            {
                CloseWindow(toBeRemoved[i].WindowName, UIWindowCloseType.ForceDestroy, -1);
            }
        }

        if (CheckIsWindowInStack(mMemoryWindows[path]))
        {
            mMemoryWindows[path].CreateWindow(null, GetIsNotSetCameraByPath(path));
        }
    }
    
    public void CloseAllNormalExcept(params string[] paths)
    {
        bool isShowAnim = true;
        var windowsL = _GetLayerWindowList(UIWindowLayer.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>();
        // UIWindow lastWindow = null;
        // if (isShowAnim)
        // {
        //     lastWindow = PopWindow();
        // }
        
        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 (isShowAnim && lastWindow != null && !paths.Contains(lastWindow.WindowName))
        // {
        //     lastWindow.CloseWindow();
        // }

        if (toBeRemoved.Count > 0)
        {
            for (int i = toBeRemoved.Count - 2; i >= 0; i--)
            {
                CloseWindow(toBeRemoved[i].WindowName, UIWindowCloseType.ForceDestroy, -1);
            }
        }

        foreach (var path in paths)
        {
            if (CheckIsWindowInStack(mMemoryWindows[path]))
            {
                mMemoryWindows[path].CreateWindow(null, GetIsNotSetCameraByPath(path));
            }
        }
    }

    public bool CheckWindowIsFullScreen(UIWindow window)
    {
        if (_windowsInfo.TryGetValue(window.WindowName, out var windowInfo))
        {
            if (windowInfo.UIOpenType == UIOpenType.FullScreen)
            {
                return true;
            }
        }

        return false;
    }

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

        if (_uiWindowStack.Count > 0)
        {
            var window = _uiWindowStack.Last();
            if (await window.OnBack())
            {
                return;
            }
        }

        if (!CheckWindowCreated(UINameConst.UIBackReturn))
        {
            await CreateAndOpenWindow(UINameConst.UIBackReturn);
        }
    }

    public bool CheckWindowLoaded(string uiPath)
    {
        if (mMemoryWindows.TryGetValue(uiPath, out var window))
        {
            return true;
        }

        return false;
    }
    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);
    }
}