reuse VirtualizingWrapPanel for display Dataset Explorer

Azaion.Annotator/DatasetExplorer.xaml.cs

@@ -1,30 +1,55 @@
-using System.Windows;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Windows;
+using Azaion.Annotator.DTO;
 
 namespace Azaion.Annotator;
 
-public partial class DatasetExplorer : Window
+public partial class DatasetExplorer
 {
-    private CancellationTokenSource _cancellationTokenSource;
+    private readonly Config _config;
 
-    public DatasetExplorer(IGalleryManager galleryManager)
+    public ObservableCollection<ThumbnailDto> ThumbnailsDtos { get; set; } = new();
+
+    public DatasetExplorer(Config config)
     {
-        _cancellationTokenSource = new CancellationTokenSource();
+        _config = config;
 
         InitializeComponent();
-        Loaded += (sender, args) =>
-        {
-            _ = Task.Run(async () =>
-            {
-                while (!_cancellationTokenSource.Token.IsCancellationRequested)
-                {
-                    await galleryManager.RefreshThumbnails(_cancellationTokenSource.Token);
-                    await Task.Delay(30000, _cancellationTokenSource.Token);
-                }
-            });
-        };
+        DataContext = this;
+        Loaded += async (sender, args) => await LoadThumbnails();
 
-        Closing += (sender, args) => _cancellationTokenSource.Cancel();
+        Closing += (sender, args) =>
+        {
+            args.Cancel = true;
+            Visibility = Visibility.Hidden;
+        };
     }
 
+    private async Task LoadThumbnails()
+    {
+        if (!Directory.Exists(_config.ThumbnailsDirectory))
+            return;
 
+        var thumbnails = Directory.GetFiles(_config.ThumbnailsDirectory, "*.jpg");
+
+        foreach (var thumbnail in thumbnails)
+        {
+            var name = Path.GetFileNameWithoutExtension(thumbnail)[..^Config.ThumbnailPrefix.Length];
+            var imageName = Path.Combine(_config.ImagesDirectory, name);
+            foreach (var imageFormat in _config.ImageFormats)
+            {
+                imageName = $"{imageName}.{imageFormat}";
+                if (File.Exists(imageName))
+                    break;
+            }
+
+            ThumbnailsDtos.Add(new ThumbnailDto
+            {
+                ThumbnailPath = thumbnail,
+                ImagePath = imageName,
+                LabelPath = Path.Combine(_config.LabelsDirectory, $"{name}.txt"),
+            });
+        }
+    }
 }