✨ Reply and forward gone indicator

DysonNetwork.Sphere/Migrations/20250819175925_AddPostParentGone.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DysonNetwork.Sphere.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPostParentGone : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "forwarded_gone",
+                table: "posts",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<bool>(
+                name: "replied_gone",
+                table: "posts",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "forwarded_gone",
+                table: "posts");
+
+            migrationBuilder.DropColumn(
+                name: "replied_gone",
+                table: "posts");
+        }
+    }
+}

DysonNetwork.Sphere/Migrations/AppDatabaseModelSnapshot.cs

@@ -554,6 +554,10 @@ namespace DysonNetwork.Sphere.Migrations
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("edited_at");
 
+                    b.Property<bool>("ForwardedGone")
+                        .HasColumnType("boolean")
+                        .HasColumnName("forwarded_gone");
+
                     b.Property<Guid?>("ForwardedPostId")
                         .HasColumnType("uuid")
                         .HasColumnName("forwarded_post_id");
@@ -574,6 +578,10 @@ namespace DysonNetwork.Sphere.Migrations
                         .HasColumnType("uuid")
                         .HasColumnName("realm_id");
 
+                    b.Property<bool>("RepliedGone")
+                        .HasColumnType("boolean")
+                        .HasColumnName("replied_gone");
+
                     b.Property<Guid?>("RepliedPostId")
                         .HasColumnType("uuid")
                         .HasColumnName("replied_post_id");

DysonNetwork.Sphere/Post/Post.cs

@@ -48,6 +48,9 @@ public class Post : ModelBase, IIdentifiedResource, IActivity
     [NotMapped] public int RepliesCount { get; set; }
     [NotMapped] public Dictionary<string, bool>? ReactionsMade { get; set; }
 
+    public bool RepliedGone { get; set; }
+    public bool ForwardedGone { get; set; }
+
     public Guid? RepliedPostId { get; set; }
     public Post? RepliedPost { get; set; }
     public Guid? ForwardedPostId { get; set; }

DysonNetwork.Sphere/Post/PostService.cs

@@ -392,8 +392,30 @@ public partial class PostService(
             new DeleteResourceReferencesRequest { ResourceId = post.ResourceIdentifier }
         );
 
+        var now = SystemClock.Instance.GetCurrentInstant();
+        await using var transaction = await db.Database.BeginTransactionAsync();
+        try
+        {
+            await db.PostReactions
+                .Where(r => r.PostId == post.Id)
+                .ExecuteUpdateAsync(p => p.SetProperty(x => x.DeletedAt, now));
+            await db.Posts
+                .Where(p => p.RepliedPostId == post.Id)
+                .ExecuteUpdateAsync(p => p.SetProperty(x => x.RepliedGone, true));
+            await db.Posts
+                .Where(p => p.ForwardedPostId == post.Id)
+                .ExecuteUpdateAsync(p => p.SetProperty(x => x.ForwardedGone, true));
+
             db.Posts.Remove(post);
             await db.SaveChangesAsync();
+
+            await transaction.CommitAsync();
+        }
+        catch (Exception)
+        {
+            await transaction.RollbackAsync();
+            throw;
+        }
     }
 
     /// <summary>