using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Reflection.Metadata;
using System.Runtime.InteropServices;
using Microsoft.UI;
using Microsoft.UI.Text;
using Microsoft.UI.Windowing;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Documents;
using Microsoft.UI.Xaml.Input;
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Media.Imaging;
using RustTools.muqing;
using Windows.ApplicationModel.Core;
using Windows.ApplicationModel.DataTransfer;
using Windows.Foundation;
using Windows.Graphics.Imaging;
using Windows.Storage.Pickers;
using Windows.Storage;
using Windows.UI.Core;
using Windows.UI.Core.Preview;
using Windows.UI.Popups;
using Windows.UI.WindowManagement;
using WinRT.Interop;
namespace RustTools.Editor;
/// <summary>
/// 编辑器主窗口
/// </summary>
public sealed partial class EditorWin : WindowEx
{
    //目录列表
    public ObservableCollection<ExplorerItem> DataSource=new ();
    private Microsoft.UI.Windowing.AppWindow? app;
    public EditorWin()
    {
        InitializeComponent();
        gj.SetBackTheme(this);
        ExtendsContentIntoTitleBar = true;
        var frame = App.AppTitlebar as FrameworkElement;
        if (frame != null)
        {
            gj.UpdateTitleBar(this, frame.ActualTheme);
            page.RequestedTheme = frame.ActualTheme;
        }

        //WindowManager.Get(this).IsMinimizable = false;
        //app = GetAppWindowForCurrentWindow();
        //app.Closing += OnClosing;
        //Closed += EditorWin_Closed;
        var directoryInfo = new DirectoryInfo("D:\\steam\\steamapps\\common\\Rusted Warfare\\mods\\units\\赤道·联合进攻0.9补丁版0.2");
        DataSource = new EditorLoad().GetData(directoryInfo.FullName);
        Title=directoryInfo.Name; 
        TitleText.Text = directoryInfo.Name;
        Closed += EditorWin_Closed;
        var v = wj.dqwb("D:\\steam\\steamapps\\common\\Rusted Warfare\\mods\\units\\赤道·联合进攻0.9补丁版0.2\\侵蚀者共和国\\指挥中心\\corrode_command.ini");
        //CodeEditor.Document.SetText(TextSetOptions.None,v);
        //EditorView.Editor.SetText(v);
        //CodeEditorControl.HighlightingLanguage.

    }

    //用户有没有保存
    private bool IsSave = false;
    private ContentDialog? ClosedDialog;
    private async void EditorWin_Closed(object sender, WindowEventArgs e)
    {
        if (IsSave == false)
        {
            // 防止窗口关闭
            e.Handled = true;
        }
        if (ClosedDialog != null) {
            return;
        }
            // 显示一个对话框，告知用户窗口不能关闭
            ClosedDialog = new ContentDialog
            {
                XamlRoot = page.XamlRoot,
                Title = "警告",
                Content = "你还有未保存的文件在编译器中。",
                PrimaryButtonText = "保存关闭",
                PrimaryButtonStyle = Application.Current.Resources["AccentButtonStyle"] as Style,
                SecondaryButtonText = "直接关闭",
                CloseButtonText = "取消"
            };
            var result = await ClosedDialog.ShowAsync();
            if (result == ContentDialogResult.Primary)
            {
                IsSave = true;
                Application.Current.Exit();
                return;
            }
            else if (result == ContentDialogResult.Secondary)
            {

                IsSave = true;
                Application.Current.Exit();
                return;
            }
            ClosedDialog = null;
    }

    private Microsoft.UI.Windowing.AppWindow GetAppWindowForCurrentWindow()
    {
        var hWnd = WindowNative.GetWindowHandle(this);
        var myWndId = Win32Interop.GetWindowIdFromWindow(hWnd);
        return Microsoft.UI.Windowing.AppWindow.GetFromWindowId(myWndId);
    }
    private void TreeView_ItemInvoked(TreeView sender, TreeViewItemInvokedEventArgs args)
    {
        // 获取当前选中的项
        // 获取被点击的项
        var invokedItem = args.InvokedItem;
        // 检查是否重复选择
        if (sender.SelectedItem is ExplorerItem selectedItem && invokedItem != null && selectedItem == invokedItem)
        {
            // 如果是同一个项，直接返回，不进行进一步处理
            return;
        }
        if (invokedItem is not ExplorerItem explorerItem)
        {
            return;
        }
        if (explorerItem.Type == ExplorerItem.ExplorerItemType.Folder)
        {
            var directoryInfo = new DirectoryInfo(explorerItem.Dir);
        }
    }

    private void TreeView_DragItemsStarting(TreeView sender, TreeViewDragItemsStartingEventArgs args)
    {
        args.Cancel = true;
        // 设置拖动的数据
        var items = args.Items.Cast<ExplorerItem>();
        var v = items.ToList()[0];
        args.Data.SetData("TreeViewItems", v.Dir);
        args.Data.RequestedOperation = DataPackageOperation.Move;
    }
    //在拖动项目悬停在 TreeView 上时，为放置操作提供视觉反馈。
    private void TreeView_DragOver(object sender, DragEventArgs e)
    {
        // 检查是否存在 "TreeViewItems" 数据
        gj.sc("aaaaaa");
        if (e.DataView.Contains("TreeViewItems"))
        {
            e.AcceptedOperation = DataPackageOperation.Move;  // 允许将文件夹拖放
        }
        else
        {
            gj.sc("No");
            e.AcceptedOperation = DataPackageOperation.None;  // 不接受拖放操作
        }
    }
    //处理项目放置的逻辑，将文件或文件夹移动到新的位置。
    private async void TreeView_Drop(object sender, DragEventArgs e)
    {
        gj.sc(e);
        // 获取拖动的数据
        if (e.DataView.Contains("TreeViewItems"))
        {
            // 确保数据不为空
            if (await e.DataView.GetDataAsync("TreeViewItems") is string Dir)
            {
                gj.sc(Dir);
                // 获取放置位置的 TreeViewItem
                var treeView = sender as TreeView;
                ExplorerItem v = treeView.DataContext is ExplorerItem;
                //var dropPosition = e.GetPosition(treeView);
                //data.Name
                gj.sc(v.Name);
            }
        }
    }
    private IList<object> initialSelectedItems;
    /// <summary>
    /// 如果是shift则开启多选状态
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void treeView_KeyDown(object sender, KeyRoutedEventArgs e)
    {
        // 检查是否按下了Shift键
        if (e.Key == Windows.System.VirtualKey.Shift)
        {
            gj.sc(e.Key);
            // 启用多选模式
            treeView.SelectionMode = TreeViewSelectionMode.Multiple;
        }
    }
    private void treeView_KeyUp(object sender, KeyRoutedEventArgs e)
    {
        // 检查是否松开了Shift键
        if (e.Key == Windows.System.VirtualKey.Shift)
        {        // 清除当前多选模式下选中的项目
            var selectedItems = treeView.SelectedItems.ToList();
            foreach (var item in selectedItems)
            {
                treeView.SelectedItems.Remove(item);
            }
            gj.sc("取消");
            // 取消多选模式
            treeView.SelectionMode = TreeViewSelectionMode.Single;
            //treeView.SelectedItems.Clear();
        }
    }

    private void tabView_TabCloseRequested(TabView sender, TabViewTabCloseRequestedEventArgs args)
    {
        sender.TabItems.Remove(args.Tab);
    }

}