Add 'backend/' from commit '040cfd7a75423d4e6136e58a67b40579af4ee966'

git-subtree-dir: backend
git-subtree-mainline: ab911955ed
git-subtree-split: 040cfd7a75

backend/src/Web/Features/Contents/Handlers/RemoveReaction.cs

@@ -0,0 +1,36 @@
+using Hutopy.Web.Features.Contents.Data;
+
+namespace Hutopy.Web.Features.Contents.Handlers;
+
+[PublicAPI]
+public sealed class RemoveReactionRequest
+{
+    public required Guid ContentId { get; set; }
+    public required Guid UserId { get; set; }
+}
+
+[PublicAPI]
+public class RemoveReaction(
+    ContentDbContext context)
+    : Endpoint<RemoveReactionRequest>
+{
+    public override void Configure()
+    {
+        Post("/api/content/reaction/remove");
+        Options(o => o.WithTags("Contents"));
+    }
+
+    public override async Task HandleAsync(
+        RemoveReactionRequest req,
+        CancellationToken ct)
+    {
+        var content = await context.Contents
+            .SingleAsync(x => x.Id == req.ContentId, ct);
+
+        var reaction = content.Reactions.Single(x => x.UserId == req.UserId);
+  
+        content.Reactions.Remove(reaction);
+   
+        await context.SaveChangesAsync(ct);
+    }
+}