✨ Account service account deleted broadcast message & sphere service clean up

DysonNetwork.Develop/Program.cs

@@ -3,6 +3,7 @@ using DysonNetwork.Shared.Auth;
 using DysonNetwork.Shared.Http;
 using DysonNetwork.Shared.Registry;
 using DysonNetwork.Develop.Startup;
+using DysonNetwork.Shared.Stream;
 using Microsoft.EntityFrameworkCore;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -10,6 +11,7 @@ var builder = WebApplication.CreateBuilder(args);
 builder.ConfigureAppKestrel(builder.Configuration);
 
 builder.Services.AddRegistryService(builder.Configuration);
+builder.Services.AddStreamConnection(builder.Configuration);
 builder.Services.AddAppServices(builder.Configuration);
 builder.Services.AddAppAuthentication();
 builder.Services.AddAppSwagger();

DysonNetwork.Pass/Account/AccountService.cs

@@ -1,4 +1,5 @@
 using System.Globalization;
+using System.Text.Json;
 using DysonNetwork.Pass.Auth;
 using DysonNetwork.Pass.Auth.OpenId;
 using DysonNetwork.Pass.Email;
@@ -6,9 +7,11 @@ using DysonNetwork.Pass.Localization;
 using DysonNetwork.Pass.Permission;
 using DysonNetwork.Shared.Cache;
 using DysonNetwork.Shared.Proto;
+using DysonNetwork.Shared.Stream;
 using EFCore.BulkExtensions;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Localization;
+using NATS.Client.Core;
 using NodaTime;
 using OtpNet;
 using AuthService = DysonNetwork.Pass.Auth.AuthService;
@@ -23,7 +26,8 @@ public class AccountService(
     PusherService.PusherServiceClient pusher,
     IStringLocalizer<NotificationResource> localizer,
     ICacheService cache,
-    ILogger<AccountService> logger
+    ILogger<AccountService> logger,
+    INatsConnection nats
 )
 {
     public static void SetCultureInfo(Account account)
@@ -183,11 +187,11 @@ public class AccountService(
         var dupeAutomateCount = await db.Accounts.Where(a => a.AutomatedId == automatedId).CountAsync();
         if (dupeAutomateCount > 0)
             throw new InvalidOperationException("Automated ID has already been used.");
-        
+
         var dupeNameCount = await db.Accounts.Where(a => a.Name == account.Name).CountAsync();
         if (dupeNameCount > 0)
             throw new InvalidOperationException("Account name has already been taken.");
-        
+
         account.AutomatedId = automatedId;
         account.ActivatedAt = SystemClock.Instance.GetCurrentInstant();
         account.IsSuperuser = false;
@@ -195,7 +199,7 @@ public class AccountService(
         await db.SaveChangesAsync();
         return account;
     }
-    
+
     public async Task<Account?> GetBotAccount(Guid automatedId)
     {
         return await db.Accounts.FirstOrDefaultAsync(a => a.AutomatedId == automatedId);
@@ -491,11 +495,11 @@ public class AccountService(
             .Where(s => s.Id == sessionId && s.AccountId == account.Id)
             .FirstOrDefaultAsync();
         if (session is null) throw new InvalidOperationException("Session was not found.");
-        
+
         // The current session should be included in the sessions' list
         db.AuthSessions.Remove(session);
         await db.SaveChangesAsync();
-        
+
         if (session.Challenge.ClientId.HasValue)
         {
             if (!await IsDeviceActive(session.Challenge.ClientId.Value))
@@ -503,7 +507,7 @@ public class AccountService(
                     { DeviceId = session.Challenge.Client!.DeviceId }
                 );
         }
-        
+
         logger.LogInformation("Deleted session #{SessionId}", session.Id);
 
         await cache.RemoveAsync($"{AuthService.AuthCachePrefix}{session.Id}");
@@ -531,7 +535,7 @@ public class AccountService(
             .Include(s => s.Challenge)
             .Where(s => s.Challenge.ClientId == device.Id)
             .ExecuteUpdateAsync(p => p.SetProperty(s => s.DeletedAt, s => now));
-        
+
         db.AuthClients.Remove(device);
         await db.SaveChangesAsync();
 
@@ -693,8 +697,14 @@ public class AccountService(
         await db.AuthSessions
             .Where(s => s.AccountId == account.Id)
             .ExecuteDeleteAsync();
-        
+
         db.Accounts.Remove(account);
         await db.SaveChangesAsync();
+
+        await nats.PublishAsync(AccountDeletedEvent.Type, JsonSerializer.SerializeToUtf8Bytes(new AccountDeletedEvent
+        {
+            AccountId = account.Id,
+            DeletedAt = SystemClock.Instance.GetCurrentInstant()
+        }));
     }
 }

DysonNetwork.Shared/Stream/AccountEvent.cs

@@ -4,6 +4,8 @@ namespace DysonNetwork.Shared.Stream;
 
 public class AccountDeletedEvent
 {
+    public static string Type => "account.deleted";
+    
     public Guid AccountId { get; set; } = Guid.NewGuid();
     public Instant DeletedAt { get; set; } = SystemClock.Instance.GetCurrentInstant();
 }

DysonNetwork.Sphere/Program.cs

@@ -2,6 +2,7 @@ using DysonNetwork.Shared.Auth;
 using DysonNetwork.Shared.Http;
 using DysonNetwork.Shared.PageData;
 using DysonNetwork.Shared.Registry;
+using DysonNetwork.Shared.Stream;
 using DysonNetwork.Sphere;
 using DysonNetwork.Sphere.PageData;
 using DysonNetwork.Sphere.Startup;
@@ -18,6 +19,7 @@ builder.Services.AddAppMetrics();
 
 // Add application services
 builder.Services.AddRegistryService(builder.Configuration);
+builder.Services.AddStreamConnection(builder.Configuration);
 builder.Services.AddAppServices(builder.Configuration);
 builder.Services.AddAppRateLimiting();
 builder.Services.AddAppAuthentication();

DysonNetwork.Sphere/Startup/BroadcastEventHandler.cs

@@ -0,0 +1,51 @@
+using System.Text.Json;
+using DysonNetwork.Shared.Stream;
+using Microsoft.EntityFrameworkCore;
+using NATS.Client.Core;
+
+namespace DysonNetwork.Sphere.Startup;
+
+public class BroadcastEventHandler(
+    INatsConnection nats,
+    ILogger<BroadcastEventHandler> logger,
+    AppDatabase db
+) : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        await foreach (var msg in nats.SubscribeAsync<byte[]>("accounts.deleted", cancellationToken: stoppingToken))
+        {
+            try
+            {
+                var evt = JsonSerializer.Deserialize<AccountDeletedEvent>(msg.Data);
+                if (evt == null) continue;
+
+                logger.LogInformation("Account deleted: {AccountId}", evt.AccountId);
+
+                await using var transaction = await db.Database.BeginTransactionAsync(cancellationToken: stoppingToken);
+                try
+                {
+                    var publishers = await db.Publishers
+                        .Where(p => p.Members.All(m => m.AccountId == evt.AccountId))
+                        .ToListAsync(cancellationToken: stoppingToken);
+
+                    foreach (var publisher in publishers)
+                        await db.Posts
+                            .Where(p => p.PublisherId == publisher.Id)
+                            .ExecuteDeleteAsync(cancellationToken: stoppingToken);
+
+                    await transaction.CommitAsync(cancellationToken: stoppingToken);
+                }
+                catch (Exception)
+                {
+                    await transaction.RollbackAsync(cancellationToken: stoppingToken);
+                    throw;
+                }
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "Error processing AccountDeleted");
+            }
+        }
+    }
+}

DysonNetwork.Sphere/Startup/ServiceCollectionExtensions.cs

@@ -73,6 +73,8 @@ public static class ServiceCollectionExtensions
             options.SupportedUICultures = supportedCultures;
         });
 
+        services.AddHostedService<BroadcastEventHandler>();
+
         return services;
     }
 

DysonNetwork.sln.DotSettings.user

@@ -71,6 +71,7 @@
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AImage_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F5aa524c330cf4033930e4a8661c62bc331a00_003F24_003Fdb8cbeea_003FImage_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AImage_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003Fdaa8d9c408cd4b4286bbef7e35f1a42e31c00_003F9f_003Fc5bde8be_003FImage_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AIMessage_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F331aca3f6f414013b09964063341351379060_003Ff1_003F9fbeae46_003FIMessage_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AINatsClient_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E2_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F30191878badd4d5da7e204504ae1f7c075400_003F45_003F90c0c4d0_003FINatsClient_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AIndexAttribute_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003Fe38f14ac86274ebb9b366729231d1c1a8838_003F8b_003F2890293d_003FIndexAttribute_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AIntentType_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F8bb08a178b5b43c5bac20a5a54159a5b2a800_003Fbf_003Ffcb84131_003FIntentType_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AIntentType_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2025_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003Fcb057cac061449bbbf3252d172d0302a2ce00_003Fb4_003Fd072017c_003FIntentType_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>