Initial WinUI switch.

Wino.Core.WinUI/Extensions/StorageFileExtensions.cs

@@ -0,0 +1,30 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using Windows.Storage;
+using Wino.Core.Domain.Models.Common;
+
+namespace Wino.Core.UWP.Extensions;
+
+public static class StorageFileExtensions
+{
+    public static async Task<SharedFile> ToSharedFileAsync(this Windows.Storage.StorageFile storageFile)
+    {
+        var content = await storageFile.ToByteArrayAsync();
+
+        return new SharedFile(storageFile.Path, content);
+    }
+
+    public static async Task<byte[]> ToByteArrayAsync(this StorageFile file)
+    {
+        if (file == null)
+            throw new ArgumentNullException(nameof(file));
+
+        using (var stream = await file.OpenReadAsync())
+        using (var memoryStream = new MemoryStream())
+        {
+            await stream.AsStreamForRead().CopyToAsync(memoryStream);
+            return memoryStream.ToArray();
+        }
+    }
+}