using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Windows;
using System.Windows.Interop;

using Autodesk.Revit.DB;

using CommunityToolkit.Mvvm.ComponentModel;

using Microsoft.Win32;

namespace ShrlAlgoToolkit.RevitAddins.Common.Assists;

public static class WinDialogAssist
{
    /// <summary>
    ///     对话框过滤器
    /// </summary>
    /// <param name="filterName">过滤器的名称</param>
    /// <param name="extensions">仅扩展名,*代表所有文件</param>
    /// <returns></returns>
    public static Microsoft.Win32.FileDialog SetFilter(this Microsoft.Win32.FileDialog dialog, string filterName, params string[] extensions)
    {
        if (extensions[0] == "*")
        {
            dialog.Filter = "所有文件(*)|*";
            //return "所有文件(*)|*";
        }

        var str = string.Empty;
        for (var i = 0; i < extensions.Length; i++)
        {
            var extension = extensions[i];
            str += $"*.{extension}";
            if (i < extensions.Length - 1)
            {
                str += ";";
            }
        }
        dialog.Filter = $"{filterName}({str})|{str}";
        return dialog;
        //return $"{filterName}({str})|{str}";
    }

    /// <summary>
    /// 打开或在现有目录并选中相应文件
    /// </summary>
    /// <param name="fileFullName"></param>
    public static void OpenFolderAndSelectFile(string fileFullName)
    {
        if (string.IsNullOrEmpty(fileFullName))
            throw new ArgumentNullException(nameof(fileFullName));
        if (!File.Exists(fileFullName))
        {
            throw new FileNotFoundException("指定的文件不存在", fileFullName);
        }
        var proc = new Process();
        proc.StartInfo.FileName = "explorer";
        //打开资源管理器
        proc.StartInfo.Arguments = "/select," + fileFullName;
        proc.Start();
    }

    /// <summary>
    /// 新建一个资源管理器窗口并选中文件或文件夹
    /// </summary>
    /// <param name="fileOrFolderPath"></param>
    public static void ExploreFile(string fileOrFolderPath)
    {
        //Process proc = new();
        //proc.StartInfo.FileName = "explorer";
        ////打开资源管理器
        //proc.StartInfo.Arguments = @"/select," + fileOrFolderPath;
        ////选中"notepad.exe"这个程序,即记事本
        //proc.Start();

        Process.Start("explorer.exe", $"/select,\"{fileOrFolderPath}\"");
    }

    /// <summary>
    /// 选择文件
    /// </summary>
    /// <param name="title"></param>
    /// <param name="extensions"></param>
    /// <returns></returns>
    public static string GetSelectedFilePath(string title, params string[] extensions)
    {
        OpenFileDialog dialog =
            new()
            {
                CheckFileExists = true,

                InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
            };
        dialog.SetFilter(title, extensions);
        return dialog.ShowDialog() == true ? dialog.FileName : null;
    }
    public static void UpdateViewDisplay(PreviewControl currentPreviewControl, System.Windows.Controls.Grid previewContainer, Document backgroundDoc, View view, ViewDetailLevel detailLevel, DisplayStyle displayStyle)
    {
        if (backgroundDoc == null || view == null) return;

        backgroundDoc.Invoke(
            _ =>
            {
                try
                {
                    view.DetailLevel = detailLevel;
                    view.DisplayStyle = displayStyle;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            });

        // 2. 销毁旧控件
        if (currentPreviewControl != null)
        {
            previewContainer.Children.Clear();
            currentPreviewControl.Dispose();
            currentPreviewControl = null;
        }

        // 3. 创建新控件并加入 UI
        currentPreviewControl = new PreviewControl(backgroundDoc, view.Id);
        previewContainer.Children.Add(currentPreviewControl);
    }
   
    /// <summary>
    ///     打开窗口，非模态窗口置顶显示，默认非模态
    /// </summary>
    /// <returns></returns>
    private static void ShowAhead(this Window window)
    {
        _ = new WindowInteropHelper(window) { Owner = Process.GetCurrentProcess().MainWindowHandle };
        window.Show();
    }

    public static void ShowModeless<T>(ObservableObject viewModel)
        where T : Window, new()
    {
        AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
        var view = SingletonViewAssist<T>.GetInstance(out var isNewCreate);
        if (isNewCreate)
        {
            view.DataContext = viewModel;
            view.ShowAhead();
        }
        view.Activate();
        AppDomain.CurrentDomain.AssemblyResolve -= CurrentDomain_AssemblyResolve;
    }
    
    private static readonly Dictionary<Type, Window> Windows = [];
    public static void ShowOrActivate<TView, TViewModel>(params object[] viewModelParams)
            where TView : Window,new()
            where TViewModel : class
    {
        var windowType = typeof(TView);
        if (!Windows.ContainsKey(windowType) || Windows[windowType] == null)
        {
            //CloseAllWindowsExcept(windowType);
            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
            Windows[windowType] = new TView();
            Windows[windowType].Closed += WindowClosed;
            Windows[windowType].Closed += (_, _) => Windows[windowType] = null;
            if (Windows[windowType].DataContext == null || !(Windows[windowType].DataContext is TViewModel))
            {
                Windows[windowType].DataContext = viewModelParams.Length == 0 ? Activator.CreateInstance(typeof(TViewModel)) : Activator.CreateInstance(typeof(TViewModel), viewModelParams);
            }
            _ = new WindowInteropHelper(Windows[windowType]) { Owner = Process.GetCurrentProcess().MainWindowHandle };
            Windows[windowType].Show();
        }
        else
        {
            Windows[windowType].Activate();
        }
    }
    private static void WindowClosed(object sender, EventArgs e)
    {
        AppDomain.CurrentDomain.AssemblyResolve -= CurrentDomain_AssemblyResolve;
    }

    public static void ShowDialog<TWindow, TViewModel>(params object[] viewModelParams)
        where TWindow : Window, new()
        where TViewModel : class
    {
        var window = new TWindow
        {
            DataContext = viewModelParams.Length == 0 ? Activator.CreateInstance(typeof(TViewModel)) : Activator.CreateInstance(typeof(TViewModel), viewModelParams)
        };
        _ = new WindowInteropHelper(window) { Owner = Process.GetCurrentProcess().MainWindowHandle };
        window.ShowDialog();
    }
    private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
    {
        StackFrame[] frames = new StackTrace().GetFrames();
        if (frames == null)
        {
            return null;
        }

        string name = new AssemblyName(args.Name).Name;
        List<string> list = new List<string>();
        foreach (var t in frames)
        {
            MethodBase method = t.GetMethod();
            if ((object)method.DeclaringType == null)
            {
                continue;
            }

            string directoryName = Path.GetDirectoryName(method.DeclaringType.Assembly.Location);
            if (list.Contains(directoryName))
            {
                continue;
            }

            list.Add(directoryName);
            foreach (string item in Directory.EnumerateFiles(directoryName, "*.dll"))
            {
                if (name == Path.GetFileNameWithoutExtension(item))
                {
                    return Assembly.LoadFile(item);
                }
            }
        }

        return null;
    }
}