write thumbnail to wallet store

Toolkit.Avalonia/IImageResizer.cs

@@ -8,4 +8,4 @@ public interface IImageResizer
         int targetWidth,
         int targetHeight,
         bool maintainAspectRatio);
-}
+}

Toolkit.Avalonia/IServiceCollectionExtensions.cs

@@ -126,7 +126,9 @@ public static class IServiceCollectionExtensions
     {
         services.AddTransient<ITopLevelProvider, TopLevelProvider>();
         services.AddTransient<IFileProvider, FileProvider>();
-        services.AddTransient<IImageProvider,  ImageProvider>();
+
+        services.AddTransient<IImageReader,  ImageReader>();
+        services.AddTransient<IImageWriter, ImageWriter>();
         services.AddTransient<IImageResizer, ImageResizer>();
 
         services.AddTransient<IDispatcher, AvaloniaDispatcher>();
@@ -149,6 +151,10 @@ public static class IServiceCollectionExtensions
         services.AddTransient((Func<IServiceProvider, IProxyServiceCollection<IComponentBuilder>>)(provider =>
             new ProxyServiceCollection<IComponentBuilder>(services =>
             {
+                services.AddTransient<IImageReader, ImageReader>();
+                services.AddTransient<IImageWriter, ImageWriter>();
+                services.AddTransient<IImageResizer, ImageResizer>();
+
                 services.AddSingleton(provider.GetRequiredService<IDispatcher>());
                 services.AddTransient<IContentTemplate, ContentTemplate>();
 

Toolkit.Avalonia/ImageReader.cs

@@ -3,17 +3,15 @@ using Toolkit.Foundation;
 
 namespace Toolkit.Avalonia;
 
-public class ImageProvider(IImageResizer imageResizer) : 
-    IImageProvider
+public class ImageReader(IImageResizer imageResizer) : 
+    IImageReader
 {
-    public async Task<IImageDescriptor> Get(string filePath, 
+    public async Task<IImageDescriptor> Get(Stream stream, 
         int width, 
         int height, 
         bool maintainAspectRatio)
     {
-        await using FileStream stream = File.OpenRead(filePath);
         Bitmap resizedImage = imageResizer.Resize(stream, width, height, maintainAspectRatio);
-
         return new ImageDescriptor(resizedImage, width, height);
     }
 }

Toolkit.Avalonia/ImageWriter.cs

@@ -0,0 +1,17 @@
+using Avalonia.Media.Imaging;
+using Toolkit.Foundation;
+
+namespace Toolkit.Avalonia;
+
+public class ImageWriter :
+    IImageWriter
+{
+    public void Write(IImageDescriptor imageDescriptor,
+        Stream stream)
+    {
+        if (imageDescriptor.Image is Bitmap bitmap)
+        {
+            bitmap.Save(stream);
+        }
+    }
+}