Use proxy URL for generic image embeds

DiscordChatExporter.Core/Discord/Data/Embeds/Embed.cs

@@ -23,6 +23,10 @@ public partial record Embed(
     EmbedVideo? Video,
     EmbedFooter? Footer)
 {
+    // Embeds can only have one image according to the API model,
+    // but the client can render multiple images in some cases.
+    public EmbedImage? Image => Images.FirstOrDefault();
+
     public SpotifyTrackEmbedProjection? TryGetSpotifyTrack() =>
         SpotifyTrackEmbedProjection.TryResolve(this);
 

DiscordChatExporter.Core/Exporting/JsonMessageWriter.cs

@@ -150,11 +150,10 @@ internal class JsonMessageWriter : MessageWriter
             await WriteEmbedImageAsync(embed.Thumbnail, cancellationToken);
         }
 
-        // Legacy: backwards-compatibility for old embeds with a single image
-        if (embed.Images.Count > 0)
+        if (embed.Image is not null)
         {
             _writer.WritePropertyName("image");
-            await WriteEmbedImageAsync(embed.Images[0], cancellationToken);
+            await WriteEmbedImageAsync(embed.Image, cancellationToken);
         }
 
         if (embed.Footer is not null)

DiscordChatExporter.Core/Exporting/MessageGroupTemplate.cshtml

@@ -392,11 +392,11 @@
                             </div>
                         }
                         // Generic image embed
-                        else if (embed.Kind == EmbedKind.Image && !string.IsNullOrWhiteSpace(embed.Url))
+                        else if (embed.Kind == EmbedKind.Image && !string.IsNullOrWhiteSpace(embed.Image?.Url))
                         {
                             <div class="chatlog__embed">
-                                <a href="@await ResolveAssetUrlAsync(embed.Url)">
-                                    <img class="chatlog__embed-generic-image" src="@await ResolveAssetUrlAsync(embed.Url)" alt="Embedded image" loading="lazy">
+                                <a href="@await ResolveAssetUrlAsync(embed.Image.ProxyUrl ?? embed.Image.Url)">
+                                    <img class="chatlog__embed-generic-image" src="@await ResolveAssetUrlAsync(embed.Image.ProxyUrl ?? embed.Image.Url)" alt="Embedded image" loading="lazy">
                                 </a>
                             </div>
                         }