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backend/src/Modules/Conversations/Infrastructure/Persistence/ChatsDbContextFactory.cs

@@ -0,0 +1,17 @@
+using Knot.Modules.Conversations.Infrastructure.Persistence;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+
+namespace Knot.Modules.Conversations.Infrastructure;
+
+[DbContext(typeof(ChatsDbContext))]
+public class ChatsDbContextFactory : IDesignTimeDbContextFactory<ChatsDbContext>
+{
+    public ChatsDbContext CreateDbContext(string[] args)
+    {
+        var optionsBuilder = new DbContextOptionsBuilder<ChatsDbContext>();
+        optionsBuilder.UseNpgsql("Host=localhost;Database=knot_db;Username=knot;Password=knot_pass");
+        return new ChatsDbContext(optionsBuilder.Options);
+    }
+}

backend/src/Modules/Conversations/Infrastructure/Persistence/ConversationsDbContext.cs

@@ -18,11 +18,16 @@ namespace Knot.Modules.Conversations.Infrastructure.Persistence;
 
 public sealed class ChatsDbContext : DbContext, Knot.Modules.Conversations.Application.Abstractions.IChatsUnitOfWork, Knot.Contracts.Conversations.Infrastructure.Persistence.IChatsDbContext
 {
-    private readonly IMediator _mediator;
-    private readonly IEncryptionService _encryptionService;
+    private readonly IMediator? _mediator;
+    private readonly IEncryptionService? _encryptionService;
+
+    public ChatsDbContext(DbContextOptions<ChatsDbContext> options)
+        : base(options)
+    {
+    }
 
     public ChatsDbContext(DbContextOptions<ChatsDbContext> options, IMediator mediator, IEncryptionService encryptionService)
-        : base(options)
+        : this(options)
     {
         _mediator = mediator;
         _encryptionService = encryptionService;
@@ -99,9 +104,12 @@ public sealed class ChatsDbContext : DbContext, Knot.Modules.Conversations.Appli
 
         int result = await base.SaveChangesAsync(cancellationToken);
 
-        foreach (var domainEvent in domainEvents)
+        if (_mediator != null)
         {
-            await _mediator.Publish(domainEvent, cancellationToken);
+            foreach (var domainEvent in domainEvents)
+            {
+                await _mediator.Publish(domainEvent, cancellationToken);
+            }
         }
 
         return result;

backend/src/Modules/Conversations/Infrastructure/Services/UserDeleterService.cs

@@ -0,0 +1,21 @@
+using Knot.Contracts.Conversations.Abstractions;
+using Knot.Modules.Conversations.Application.Users.Commands.DeleteUser;
+using Knot.Shared.Kernel;
+using MediatR;
+
+namespace Knot.Modules.Conversations.Infrastructure.Services;
+
+public sealed class UserDeleterService : IUserDeleterService
+{
+    private readonly ISender _sender;
+
+    public UserDeleterService(ISender sender)
+    {
+        _sender = sender;
+    }
+
+    public async Task<Result> DeleteUserAsync(Guid userId, CancellationToken cancellationToken)
+    {
+        return await _sender.Send(new DeleteUserCommand(userId), cancellationToken);
+    }
+}