♻️ Refactor the publisher loading in posts

DysonNetwork.Sphere/Account/NotificationService.cs

@@ -158,9 +158,18 @@ public class NotificationService
             var accounts = await _db.Accounts.ToListAsync();
             var notifications = accounts.Select(x =>
             {
-                notification.Account = x;
-                notification.AccountId = x.Id;
-                return notification;
+                var newNotification = new Notification
+                {
+                    Topic = notification.Topic,
+                    Title = notification.Title,
+                    Subtitle = notification.Subtitle,
+                    Content = notification.Content,
+                    Meta = notification.Meta,
+                    Priority = notification.Priority,
+                    Account = x,
+                    AccountId = x.Id
+                };
+                return newNotification;
             }).ToList();
             await _db.BulkInsertAsync(notifications);
         }
@@ -183,9 +192,18 @@ public class NotificationService
         {
             var notifications = accounts.Select(x =>
             {
-                notification.Account = x;
-                notification.AccountId = x.Id;
-                return notification;
+                var newNotification = new Notification
+                {
+                    Topic = notification.Topic,
+                    Title = notification.Title,
+                    Subtitle = notification.Subtitle,
+                    Content = notification.Content,
+                    Meta = notification.Meta,
+                    Priority = notification.Priority,
+                    Account = x,
+                    AccountId = x.Id
+                };
+                return newNotification;
             }).ToList();
             await _db.BulkInsertAsync(notifications);
         }
@@ -222,16 +240,22 @@ public class NotificationService
                             notification.Content ?? string.Empty).Trim();
                     }
 
-                    await _fcm.SendAsync(new
+                    await _fcm.SendAsync(new Dictionary<string, object>
                     {
-                        message = new
+                        ["message"] = new Dictionary<string, object>
                         {
-                            token = subscription.DeviceToken,
-                            notification = new
+                            ["token"] = subscription.DeviceToken,
+                            ["notification"] = new Dictionary<string, object> 
                             {
-                                title = notification.Title ?? string.Empty, body
+                                ["title"] = notification.Title ?? string.Empty,
+                                ["body"] = body
                             },
-                            data = notification.Meta ?? new Dictionary<string, object>()
+                            ["data"] = new Dictionary<string, object>
+                            {
+                                ["id"] = notification.Id,
+                                ["topic"] = notification.Topic,
+                                ["meta"] = notification.Meta ?? new Dictionary<string, object>()
+                            }
                         }
                     });
                     break;
@@ -242,6 +266,7 @@ public class NotificationService
 
                     await _apns.SendAsync(new Dictionary<string, object>
                         {
+                            ["topic"] = notification.Topic,
                             ["aps"] = new Dictionary<string, object>
                             {
                                 ["alert"] = new Dictionary<string, object>

DysonNetwork.Sphere/AppDatabase.cs

@@ -3,6 +3,7 @@ using DysonNetwork.Sphere.Permission;
 using DysonNetwork.Sphere.Publisher;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.EntityFrameworkCore.Query;
 using NodaTime;
 using Npgsql;
 using Quartz;
@@ -360,3 +361,35 @@ public class AppDatabaseFactory : IDesignTimeDbContextFactory<AppDatabase>
         return new AppDatabase(optionsBuilder.Options, configuration);
     }
 }
+
+public static class OptionalQueryExtensions
+{
+    public static IQueryable<T> If<T>(
+        this IQueryable<T> source,
+        bool condition,
+        Func<IQueryable<T>, IQueryable<T>> transform
+    )
+    {
+        return condition ? transform(source) : source;
+    }
+    
+    public static IQueryable<T> If<T, TP>(
+        this IIncludableQueryable<T, TP> source,
+        bool condition,
+        Func<IIncludableQueryable<T, TP>, IQueryable<T>> transform
+    )
+        where T : class
+    {
+        return condition ? transform(source) : source;
+    }
+
+    public static IQueryable<T> If<T, TP>(
+        this IIncludableQueryable<T, IEnumerable<TP>> source,
+        bool condition,
+        Func<IIncludableQueryable<T, IEnumerable<TP>>, IQueryable<T>> transform
+    )
+        where T : class
+    {
+        return condition ? transform(source) : source;
+    }
+}

DysonNetwork.Sphere/Chat/ChatService.cs

@@ -66,14 +66,13 @@ public class ChatService(
         var scopedCrs = scope.ServiceProvider.GetRequiredService<ChatRoomService>();
 
         var roomSubject = room.Realm is not null ? $"{room.Name}, {room.Realm.Name}" : room.Name;
-        var tasks = new List<Task>();
 
         var members = await scopedCrs.ListRoomMembers(room.Id);
 
         var notification = new Notification
         {
             Topic = "messages.new",
-            Title = $"{sender.Nick ?? sender.Account?.Nick ?? "Unknown"} ({roomSubject})",
+            Title = $"{sender.Nick ?? sender.Account.Nick ?? "Unknown"} ({roomSubject})",
             Content = !string.IsNullOrEmpty(message.Content)
                 ? message.Content[..Math.Min(message.Content.Length, 100)]
                 : "<attachments>",
@@ -106,9 +105,8 @@ public class ChatService(
         logger.LogInformation($"Trying to deliver message to {accountsToNotify.Count} accounts...");
         // Only send notifications if there are accounts to notify
         if (accountsToNotify.Count > 0)
-            tasks.Add(scopedNty.SendNotificationBatch(notification, accountsToNotify, save: false));
+            await scopedNty.SendNotificationBatch(notification, accountsToNotify, save: false);
 
-        await Task.WhenAll(tasks);
         logger.LogInformation($"Delivered message to {accountsToNotify.Count} accounts.");
     }
 

DysonNetwork.Sphere/Post/PostController.cs

@@ -40,7 +40,7 @@ public class PostController(
             .FilterWithVisibility(currentUser, userFriends, isListing: true)
             .CountAsync();
         var posts = await query
-            .Include(e => e.Publisher)
+            .Include(e => e.RepliedPost)
             .Include(e => e.ThreadedPost)
             .Include(e => e.ForwardedPost)
             .Include(e => e.Attachments)
@@ -53,6 +53,7 @@ public class PostController(
             .Take(take)
             .ToListAsync();
         posts = PostService.TruncatePostContent(posts);
+        posts = await ps.LoadPublishers(posts);
 
         var postsId = posts.Select(e => e.Id).ToList();
         var reactionMaps = await ps.GetPostReactionMapBatch(postsId);
@@ -106,7 +107,6 @@ public class PostController(
             .CountAsync();
         var posts = await db.Posts
             .Where(e => e.RepliedPostId == id)
-            .Include(e => e.Publisher)
             .Include(e => e.ThreadedPost)
             .Include(e => e.ForwardedPost)
             .Include(e => e.Attachments)
@@ -118,6 +118,7 @@ public class PostController(
             .Take(take)
             .ToListAsync();
         posts = PostService.TruncatePostContent(posts);
+        posts = await ps.LoadPublishers(posts);
 
         var postsId = posts.Select(e => e.Id).ToList();
         var reactionMaps = await ps.GetPostReactionMapBatch(postsId);

DysonNetwork.Sphere/Post/PostService.cs

@@ -271,6 +271,47 @@ public class PostService(
                     )
             );
     }
+
+    public async Task<List<Post>> LoadPublishers(List<Post> posts)
+    {
+        var publisherIds = posts
+            .Where(e => e.Publisher.AccountId != null)
+            .SelectMany<Post, Guid?>(e =>
+            [
+                e.Publisher.Id,
+                e.RepliedPost?.Publisher.Id,
+                e.ForwardedPost?.Publisher.Id,
+                e.ThreadedPost?.Publisher.Id
+            ])
+            .Where(e => e != null)
+            .Distinct()
+            .ToList();
+        if (publisherIds.Count == 0) return posts;
+
+        var publishers = await db.Publishers
+            .Where(e => e.AccountId != null && publisherIds.Contains(e.AccountId.Value))
+            .ToDictionaryAsync(e => e.AccountId!.Value);
+
+        foreach (var post in posts)
+        {
+            if (publishers.TryGetValue(post.Publisher.Id, out var publisher))
+                post.Publisher = publisher;
+
+            if (post.RepliedPost?.Publisher.Id != null &&
+                publishers.TryGetValue(post.RepliedPost.Publisher.Id, out var repliedPublisher))
+                post.RepliedPost.Publisher = repliedPublisher;
+
+            if (post.ForwardedPost?.Publisher.Id != null && 
+                publishers.TryGetValue(post.ForwardedPost.Publisher.Id, out var forwardedPublisher))
+                post.ForwardedPost.Publisher = forwardedPublisher;
+
+            if (post.ThreadedPost?.Publisher.Id != null &&
+                publishers.TryGetValue(post.ThreadedPost.Publisher.Id, out var threadedPublisher))
+                post.ThreadedPost.Publisher = threadedPublisher;
+        }
+
+        return posts;
+    }
 }
 
 public static class PostQueryExtensions

DysonNetwork.sln.DotSettings.user

@@ -23,6 +23,7 @@
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