Перепиливание под чистый DDD

2026-03-22 23:59:33 +03:00
parent 5da1a2f45d
commit 6e532b021d
302 changed files with 3595 additions and 3679 deletions
@@ -0,0 +1,54 @@
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Knot.Shared.Kernel;
+using Knot.Modules.Conversations.Domain;
+using Knot.Modules.Conversations.Application.Abstractions;
+using MediatR;
+using System.Linq;
+
+namespace Knot.Modules.Conversations.Application.Chats.LeaveOrDelete;
+
+public record LeaveOrDeleteChatCommand(Guid ChatId, Guid UserId) : ICommand<SuccessResponse>;
+
+internal sealed class LeaveOrDeleteChatCommandHandler : ICommandHandler<LeaveOrDeleteChatCommand, SuccessResponse>
+{
+    private readonly IChatRepository _chatRepository;
+    private readonly IChatsUnitOfWork _uow;
+
+    public LeaveOrDeleteChatCommandHandler(IChatRepository chatRepository, IChatsUnitOfWork uow)
+    {
+        _chatRepository = chatRepository;
+        _uow = uow;
+    }
+
+    public async Task<Result<SuccessResponse>> Handle(LeaveOrDeleteChatCommand request, CancellationToken cancellationToken)
+    {
+        var chat = await _chatRepository.GetByIdAsync(request.ChatId, cancellationToken);
+        if (chat == null)
+        {
+            return Result.Success(new SuccessResponse(true));
+        }
+
+        if (!chat.Members.Any(m => m.UserId == request.UserId))
+        {
+            return Result.Failure<SuccessResponse>(ChatErrors.Unauthorized);
+        }
+
+        if (chat.Type == ChatType.Group)
+        {
+            chat.RemoveMember(request.UserId);
+            _chatRepository.Update(chat);
+        }
+        else
+        {
+            _chatRepository.Remove(chat);
+        }
+
+        await _uow.SaveChangesAsync(cancellationToken);
+
+        return Result.Success(new SuccessResponse(true));
+    }
+}
+