♻️ Update handling logic of activitypub

DysonNetwork.Shared/Models/Post.cs

@@ -107,7 +107,6 @@ public class SnPost : ModelBase, IIdentifiedResource, ITimelineEvent
     public List<ContentMention>? Mentions { get; set; }
 
     public int BoostCount { get; set; }
-    public int LikeCount { get; set; }
 
     public Guid? ActorId { get; set; }
     public SnFediverseActor? Actor { get; set; }
@@ -232,7 +231,6 @@ public class SnPost : ModelBase, IIdentifiedResource, ITimelineEvent
 
         proto.RepliesCount = RepliesCount;
         proto.BoostCount = BoostCount;
-        proto.LikeCount = LikeCount;
 
         if (ActorId.HasValue)
             proto.ActorId = ActorId.Value.ToString();
@@ -349,7 +347,6 @@ public class SnPost : ModelBase, IIdentifiedResource, ITimelineEvent
 
         post.RepliesCount = proto.RepliesCount;
         post.BoostCount = proto.BoostCount;
-        post.LikeCount = proto.LikeCount;
 
         if (!string.IsNullOrEmpty(proto.ActorId))
             post.ActorId = Guid.Parse(proto.ActorId);

DysonNetwork.Shared/Proto/post.proto

@@ -143,7 +143,6 @@ message Post {
   optional PostContentType content_type = 44;
   repeated ContentMention mentions = 48;
   int32 boost_count = 50;
-  int32 like_count = 51;
   optional string actor_id = 53;
 
   repeated PostAward awards = 33;

DysonNetwork.Sphere/ActivityPub/ActivityPubActivityHandler.cs

@@ -16,9 +16,32 @@ public class ActivityPubActivityHandler(
     ActivityPubSignatureService signatureService,
     ActivityPubDeliveryService deliveryService,
     ActivityPubDiscoveryService discoveryService,
-    ILogger<ActivityPubActivityHandler> logger
+    ILogger<ActivityPubActivityHandler> logger,
+    IConfiguration configuration
 )
 {
+    private string Domain => configuration["ActivityPub:Domain"] ?? "localhost";
+
+    private async Task<SnPost?> GetPostByUriAsync(string objectUri)
+    {
+        var uri = new Uri(objectUri);
+        var domain = uri.Host;
+        
+        // Remote post
+        if (domain != Domain) return await db.Posts.FirstOrDefaultAsync(c => c.FediverseUri == objectUri);
+        
+        // Local post, extract ID from path like /posts/{guid}
+        var path = uri.AbsolutePath.Trim('/');
+        var segments = path.Split('/');
+        if (segments is not [.., "posts", _]) return null;
+        var idStr = segments[^1];
+        if (Guid.TryParse(idStr, out var id))
+        {
+            return await db.Posts.FirstOrDefaultAsync(p => p.Id == id);
+        }
+        return null;
+    }
+    
     public async Task<bool> HandleIncomingActivityAsync(
         HttpContext context,
         string username,
@@ -237,8 +260,8 @@ public class ActivityPubActivityHandler(
         return objectType switch
         {
             "Follow" => await UndoFollowAsync(actorUri, objectDict.GetValueOrDefault("object")?.ToString()),
-            "Like" => await UndoLikeAsync(actorUri, objectDict.GetValueOrDefault("id")?.ToString()),
+            "Like" => await UndoLikeAsync(actorUri, objectDict.GetValueOrDefault("object")?.ToString()),
-            "Announce" => await UndoAnnounceAsync(actorUri, objectDict.GetValueOrDefault("id")?.ToString()),
+            "Announce" => await UndoAnnounceAsync(actorUri, objectDict.GetValueOrDefault("object")?.ToString()),
             _ => false
         };
     }
@@ -287,8 +310,6 @@ public class ActivityPubActivityHandler(
             Attachments = ParseAttachments(objectDict.GetValueOrDefault("attachment")) ?? [],
             Type = objectType == "Article" ? PostType.Article : PostType.Moment,
             Visibility = PostVisibility.Public,
-            CreatedAt = SystemClock.Instance.GetCurrentInstant(),
-            UpdatedAt = SystemClock.Instance.GetCurrentInstant(),
             Metadata = BuildMetadataFromActivity(objectDict)
         };
         
@@ -306,8 +327,7 @@ public class ActivityPubActivityHandler(
             return false;
 
         var actor = await GetOrCreateActorAsync(actorUri);
-        var content = await db.Posts
+        var content = await GetPostByUriAsync(objectUri);
-            .FirstOrDefaultAsync(c => c.FediverseUri == objectUri);
 
         if (content == null)
         {
@@ -319,7 +339,7 @@ public class ActivityPubActivityHandler(
             .FirstOrDefaultAsync(r =>
                 r.ActorId == actor.Id &&
                 r.PostId == content.Id &&
-                r.Symbol == "❤️");
+                r.Symbol == "thumb_up");
         
         if (existingReaction != null)
         {
@@ -330,7 +350,7 @@ public class ActivityPubActivityHandler(
         var reaction = new SnPostReaction
         {
             FediverseUri = activity.GetValueOrDefault("id")?.ToString() ?? Guid.NewGuid().ToString(),
-            Symbol = "❤️",
+            Symbol = "thumb_up",
             Attitude = PostReactionAttitude.Positive,
             IsLocal = false,
             PostId = content.Id,
@@ -341,7 +361,7 @@ public class ActivityPubActivityHandler(
         };
         
         db.PostReactions.Add(reaction);
-        content.LikeCount++;
+        content.Upvotes++;
         
         await db.SaveChangesAsync();
         
@@ -356,8 +376,7 @@ public class ActivityPubActivityHandler(
             return false;
 
         var actor = await GetOrCreateActorAsync(actorUri);
-        var content = await db.Posts
+        var content = await GetPostByUriAsync(objectUri);
-            .FirstOrDefaultAsync(c => c.FediverseUri == objectUri);
 
         if (content != null)
         {
@@ -375,15 +394,12 @@ public class ActivityPubActivityHandler(
         if (string.IsNullOrEmpty(objectUri))
             return false;
 
-        var content = await db.Posts
+        var content = await GetPostByUriAsync(objectUri);
-            .FirstOrDefaultAsync(c => c.FediverseUri == objectUri);
 
-        if (content != null)
+        if (content == null) return true;
-        {
         content.DeletedAt = SystemClock.Instance.GetCurrentInstant();
         await db.SaveChangesAsync();
         logger.LogInformation("Deleted federated content: {Uri}", objectUri);
-        }
 
         return true;
     }
@@ -394,8 +410,7 @@ public class ActivityPubActivityHandler(
         if (string.IsNullOrEmpty(objectUri))
             return false;
 
-        var content = await db.Posts
+        var content = await GetPostByUriAsync(objectUri);
-            .FirstOrDefaultAsync(c => c.FediverseUri == objectUri);
 
         if (content != null)
         {
@@ -430,32 +445,39 @@ public class ActivityPubActivityHandler(
         return true;
     }
 
-    private async Task<bool> UndoLikeAsync(string actorUri, string? activityId)
+    private async Task<bool> UndoLikeAsync(string actorUri, string? objectUri)
     {
+        if (string.IsNullOrEmpty(objectUri))
+            return false;
+
         var actor = await GetOrCreateActorAsync(actorUri);
+        var content = await GetPostByUriAsync(objectUri);
 
-        var reactions = await db.PostReactions
+        if (content == null)
-            .Where(r => r.ActorId == actor.Id && r.Symbol == "❤️")
+            return false;
-            .ToListAsync();
 
-        foreach (var reaction in reactions)
+        var reaction = await db.PostReactions
+            .FirstOrDefaultAsync(r =>
+                r.ActorId == actor.Id &&
+                r.PostId == content.Id &&
+                r.Symbol == "thumb_up");
+
+        if (reaction != null)
         {
-            var content = await db.Posts.FindAsync(reaction.PostId);
-            if (content != null)
-            {
-                content.LikeCount--;
-            }
             db.PostReactions.Remove(reaction);
+            content.Upvotes--;
+            await db.SaveChangesAsync();
         }
 
-        await db.SaveChangesAsync();
         return true;
     }
 
-    private async Task<bool> UndoAnnounceAsync(string actorUri, string? activityId)
+    private async Task<bool> UndoAnnounceAsync(string actorUri, string? objectUri)
     {
-        var content = await db.Posts
+        if (string.IsNullOrEmpty(objectUri))
-            .FirstOrDefaultAsync(c => c.FediverseUri == activityId);
+            return false;
+
+        var content = await GetPostByUriAsync(objectUri);
 
         if (content != null)
         {

DysonNetwork.Sphere/Migrations/20251231143021_RemoveSeprateLikeCountOnPost.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DysonNetwork.Sphere.Migrations
+{
+    /// <inheritdoc />
+    public partial class RemoveSeprateLikeCountOnPost : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "like_count",
+                table: "posts");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "like_count",
+                table: "posts",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0);
+        }
+    }
+}

DysonNetwork.Sphere/Migrations/AppDatabaseModelSnapshot.cs

@@ -840,10 +840,6 @@ namespace DysonNetwork.Sphere.Migrations
                         .HasColumnType("character varying(2048)")
                         .HasColumnName("language");
 
-                    b.Property<int>("LikeCount")
-                        .HasColumnType("integer")
-                        .HasColumnName("like_count");
-
                     b.Property<List<ContentMention>>("Mentions")
                         .HasColumnType("jsonb")
                         .HasColumnName("mentions");