Download image implementation

LLama/LLamaInteractExecutor.cs

@@ -11,6 +11,7 @@ using System.Threading.Tasks;
 using LLama.Exceptions;
 using LLama.Extensions;
 using Microsoft.Extensions.Logging;
+using System.Net.Http;
 
 namespace LLama
 {
@@ -154,7 +155,7 @@ namespace LLama
                 {
                     if (image.Type == ImageData.DataType.ImagePath && image.Data != null)
                     {
-                        _imageEmbedHandles.Add(SafeLlavaImageEmbedHandle.CreateFromFileName(ClipModel.NativeHandle, Context, image.Data.ToString()));
+                        _imageEmbedHandles.Add(SafeLlavaImageEmbedHandle.CreateFromFileName(ClipModel.NativeHandle, Context, (string)image.Data));
                     }
                     else if (image.Type == ImageData.DataType.ImageBytes && image.Data != null)
                     {
@@ -162,7 +163,13 @@ namespace LLama
                     }
                     else if (image.Type == ImageData.DataType.ImageURL && image.Data != null)
                     {
-                        throw new NotImplementedException();
+                        using var httpClient = new HttpClient();
+                        var uri = new Uri((string)image.Data);
+                        var imageBytes = httpClient.GetByteArrayAsync(uri).Result;
+                        if (imageBytes != null && imageBytes.Length > 0)
+                        {
+                            _imageEmbedHandles.Add(SafeLlavaImageEmbedHandle.CreateFromMemory(ClipModel.NativeHandle, Context, imageBytes));
+                        }
                     }
                 }