using System.Collections.ObjectModel;
using System.Diagnostics;
using Microsoft.UI;
using Microsoft.UI.Input;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Input;
using Microsoft.UI.Xaml.Media;
using RustTools.muqing;
using Windows.System;
using Windows.UI.Core;
using WinRT.Interop;
using WinUIEditor;
namespace RustTools.Editor;
/// <summary>
/// 编辑器主窗口
/// </summary>
public sealed partial class EditorWin : WindowEx
{
    public static ObservableCollection<TabViewItem> TabViewList = [];
    //目录列表
    public ObservableCollection<FileItem> DataSource = [];

    /// <summary>
    /// 编辑器主窗口
    /// 传入路径
    /// </summary>
    /// <param name="path"></param>
    public EditorWin(string path)
    {
        InitializeComponent();
        gj.SetBackTheme(this);
        ExtendsContentIntoTitleBar = true;
        var frame = App.AppTitlebar as FrameworkElement;
        if (frame != null)
        {
            gj.UpdateTitleBar(this, frame.ActualTheme);
            page.RequestedTheme = frame.ActualTheme;
        }
        //Debug.WriteLine(path);
        var directoryInfo = new DirectoryInfo(path);
        Title = directoryInfo.Name;
        TitleText.Text = directoryInfo.Name;
        DataSource = EditorLoad.GetData(directoryInfo.FullName);
        treeView.ItemsSource = DataSource;
        Closed += EditorWin_Closed;
        //设置TabView的高度
        gridedit.SizeChanged += (sender, args) =>
        {
            tabview.Height = gridedit.ActualHeight - 10;
        };

        tabview.TabItemsSource = TabViewList;
        treeView.AddTabItem += TreeView_AddTabItem;
        treeView.SelectedItem += (a) =>
        {
            tabview.SelectedItem = a;
        };
    }

    private void TreeView_AddTabItem(TabViewItem obj,CodeEditorControl codeEditorControl){
        tabview.SelectedItem = obj;
        var title = obj.Header.ToString();
        codeEditorControl.Editor.UpdateUI += (sender, args) =>
        {
            //是否有可以撤销的历史记录
            var a = codeEditorControl.Editor.CanUndo();

            if (a)
            {
                obj.Header = $"{title} *";
            }
            else
            {
                obj.Header = title;
            }
            Debug.WriteLine($"UpdateUI :" + a);
        };
        codeEditorControl.KeyDown+= (sender, e) =>
        {
            // 检查是否按下了 Ctrl 键
            var isCtrlPressed = InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Control) == CoreVirtualKeyStates.Down;
            // 检查是否按下了 J 键
            if (e.Key == VirtualKey.S && isCtrlPressed)
            {
                // 执行 Ctrl + S 组合键对应的操作
                //Debug.WriteLine("Ctrl + S pressed");
                if (obj==null||string.IsNullOrEmpty(obj.Tag.ToString()))
                {
                    return;
                }
                //Debug.WriteLine($"保存文件 {codeEditorControl.Editor.GetText(codeEditorControl.Editor.Length)}");
                wj.xrwb(obj.Tag.ToString(), codeEditorControl.Editor.GetText(codeEditorControl.Editor.Length));
                codeEditorControl.Editor.EmptyUndoBuffer();
                obj.Header = title;
                e.Handled = true; // 标记事件已处理
            }
        };
    }


    //用户有没有保存
    private bool IsSave = true;
    private ContentDialog? ClosedDialog = null;
    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;
    }
    // 关闭选项卡
    private void MyTabView_TabCloseRequested(TabView sender, TabViewTabCloseRequestedEventArgs args)
    {
        if (args.Tab is TabViewItem tab)
        {
            TabViewList.Remove(tab);
        }
    }
}