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 +1,83 @@
+using Knot.Modules.Messaging.Application.Abstractions;
+using Knot.Modules.Messaging.Domain;
+using MediatR;
+using Microsoft.AspNetCore.SignalR;
+using global::Knot.Modules.Conversations.Domain;
+using global::Knot.Modules.Conversations.Infrastructure.SignalR;
+using global::Knot.Shared.Kernel;
+using global::Knot.Modules.Conversations.Application.Abstractions;
+
+namespace Knot.Modules.Conversations.Application.Messages.Delete;
+
+public sealed record DeleteMessagesCommand(
+    Guid ChatId,
+    Guid UserId,
+    List<Guid> MessageIds,
+    bool DeleteForAll) : ICommand;
+
+public sealed class DeleteMessagesCommandHandler : ICommandHandler<DeleteMessagesCommand>
+{
+    private readonly IMessageRepository _messageRepository;
+    private readonly IChatsUnitOfWork _unitOfWork;
+    private readonly IHubContext<ChatHub> _hubContext;
+
+    public DeleteMessagesCommandHandler(
+        IMessageRepository messageRepository,
+        IChatsUnitOfWork unitOfWork,
+        IHubContext<ChatHub> hubContext)
+    {
+        _messageRepository = messageRepository;
+        _unitOfWork = unitOfWork;
+        _hubContext = hubContext;
+    }
+
+    public async Task<global::Knot.Shared.Kernel.Result> Handle(DeleteMessagesCommand request, CancellationToken cancellationToken)
+    {
+        foreach (var id in request.MessageIds)
+        {
+            var message = await _messageRepository.GetByIdAsync(id, cancellationToken);
+            if (message is null || message.ChatId != request.ChatId)
+            {
+                continue;
+            }
+
+            if (request.DeleteForAll)
+            {
+                if (message.SenderId == request.UserId)
+                {
+                    message.Delete();
+                }
+            }
+            else
+            {
+                message.DeleteForUser(request.UserId);
+            }
+
+            await _messageRepository.UpdateAsync(message, cancellationToken);
+        }
+
+        if (request.DeleteForAll)
+        {
+            await _hubContext.Clients.Group(request.ChatId.ToString()).SendAsync("messages_deleted", new
+            {
+                chatId = request.ChatId,
+                messageIds = request.MessageIds,
+                deleteForAll = true
+            });
+        }
+        else
+        {
+            // Уведомляем только самого пользователя (все его текущие сессии)
+            await _hubContext.Clients.User(request.UserId.ToString()).SendAsync("messages_deleted", new
+            {
+                chatId = request.ChatId,
+                messageIds = request.MessageIds,
+                deleteForAll = false
+            });
+        }
+
+        return global::Knot.Shared.Kernel.Result.Success();
+    }
+}
+
+