feat: redesign board UI, add real-time comments

server/Directory.Packages.props

@@ -9,10 +9,12 @@
     <PackageVersion Include="EntityFrameworkCore.Exceptions.Common" Version="10.0.0" />
     <PackageVersion Include="Hangfire" Version="1.8.23" />
     <PackageVersion Include="Jdenticon-net" Version="3.1.2" />
+    <PackageVersion Include="MediatR" Version="14.1.0" />
     <PackageVersion Include="Microsoft.AspNetCore.DataProtection.EntityFrameworkCore" Version="10.0.7" />
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.7" />
     <PackageVersion Include="Microsoft.AspNetCore.OutputCaching.StackExchangeRedis" Version="10.0.7" />
     <PackageVersion Include="Microsoft.AspNetCore.SignalR.StackExchangeRedis" Version="10.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.7" />
     <PackageVersion Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="10.0.7" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.5.0" />
     <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.5.0" />

server/src/Application/Abstractions/Persistence/IAppDbContext.cs

@@ -28,6 +28,6 @@ public interface IAppDbContext
     DbSet<Tag> Tags { get; }
 
     DbSet<Card> Cards { get; }
-
+    DbSet<CardComment> CardComments { get; }
     Task<int> SaveChangesAsync(CancellationToken cancellationToken = default);
 }

server/src/Application/Boards/Create/CreateBoardCommand.cs

@@ -7,5 +7,5 @@ public sealed record CreateBoardMemberRequest(int UserId, MemberRole Role);
 
 public sealed record CreateBoardCommand(
     string Title,
-    string Description,
+    string? Description,
     IReadOnlyList<CreateBoardMemberRequest>? Members = null) : ICommand<int>;

server/src/Application/Boards/Get/GetBoardsResponse.cs

@@ -15,7 +15,7 @@ public sealed record UserDto(int Id, string UserName)
     public sealed record BoardDto(
         int Id,
         string Title,
-        string Description,
+        string? Description,
         MemberRole YourRole,
         DateTimeOffset CreatedAt,
         UserDto CreatedBy,

server/src/Application/Boards/GetById/GetBoardByIdHandler.cs

@@ -46,7 +46,16 @@ public async Task<Result<GetBoardByIdResponse>> Handle(GetBoardByIdQuery query,
                                         c.CreatedAt,
                                         UserDto.From(c.CreatedBy),
                                         c.UpdatedAt,
-                                        UserDto.From(c.UpdatedBy)))
+                                        UserDto.From(c.UpdatedBy),
+                                        c.Comments
+                                            .OrderBy(comm => comm.CreatedAt)
+                                            .Select(comm => new CardCommentDto(
+                                                comm.Id,
+                                                comm.UserId,
+                                                comm.User.UserName ?? "Unknown",
+                                                comm.Content,
+                                                comm.CreatedAt))
+                                            .ToList()))
                                     .ToList()))
                             .ToList()))
                     .ToList()))

server/src/Application/Boards/GetById/GetBoardByIdResponse.cs

@@ -1,12 +1,13 @@
 using System.Diagnostics.CodeAnalysis;
+using Snapflow.Application.Cards.AddComment;
 using static Snapflow.Application.Boards.GetById.GetBoardByIdResponse;
 
 namespace Snapflow.Application.Boards.GetById;
 
 public sealed record GetBoardByIdResponse(
         int Id,
         string Title,
-        string Description,
+        string? Description,
         IReadOnlyList<SwimlaneDto> Swimlanes)
 {
     public sealed record UserDto(int Id, string UserName)
@@ -34,10 +35,17 @@ public sealed record ListDto(
     public sealed record CardDto(
         int Id,
         string Title,
-        string Description,
+        string? Description,
         string Rank,
         DateTimeOffset CreatedAt,
         UserDto CreatedBy,
         DateTimeOffset? UpdatedAt,
-        UserDto? UpdatedBy);
+        UserDto? UpdatedBy,
+        List<CardCommentDto> Comments);
+    public sealed record CardCommentDto(
+        int Id,
+        int UserId,
+        string UserName,
+        string Content,
+        DateTimeOffset CreatedAt);
 }

server/src/Application/Boards/GetDetails/GetBoardDetailsResponse.cs

@@ -5,7 +5,7 @@ namespace Snapflow.Application.Boards.GetDetails;
 public sealed record GetBoardDetailsResponse(
     int Id,
     string Title,
-    string Description,
+    string? Description,
     IReadOnlyList<GetBoardDetailsMemberResponse> Members);
 
 public sealed record GetBoardDetailsMemberResponse(

server/src/Application/Cards/AppComment/AddCardCommentCommand.cs

@@ -0,0 +1,7 @@
+using Snapflow.Application.Abstractions.Messaging;
+using Snapflow.Application.Boards.GetById;
+
+namespace Snapflow.Application.Cards.AddComment;
+
+public sealed record AddCardCommentCommand(int CardId, int UserId, string Content)
+    : ICommand<GetBoardByIdResponse.CardCommentDto>;

server/src/Application/Cards/AppComment/AddCardCommentHandler.cs

@@ -0,0 +1,46 @@
+using Microsoft.EntityFrameworkCore;
+using Snapflow.Application.Abstractions.Messaging;
+using Snapflow.Application.Abstractions.Persistence;
+using Snapflow.Application.Boards.GetById;
+using Snapflow.Common;
+using Snapflow.Domain.Cards;
+
+namespace Snapflow.Application.Cards.AddComment;
+
+internal sealed class AddCardCommentCommandHandler(
+    IAppDbContext context) : ICommandHandler<AddCardCommentCommand, GetBoardByIdResponse.CardCommentDto> // <--- ZMIANA 1: Zwracamy DTO zamiast int
+{
+    public async Task<Result<GetBoardByIdResponse.CardCommentDto>> Handle(AddCardCommentCommand request, CancellationToken cancellationToken = default)
+    {
+        var card = await context.Cards
+            .FirstOrDefaultAsync(c => c.Id == request.CardId && !c.IsDeleted, cancellationToken);
+
+        if (card is null)
+        {
+            return Result.Failure<GetBoardByIdResponse.CardCommentDto>(CardErrors.NotFound(request.CardId));
+        }
+
+        var user = await context.Users
+            .FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);
+
+        if (user is null)
+        {
+            return Result.Failure<GetBoardByIdResponse.CardCommentDto>(new Error("User.NotFound", "User not found", ErrorType.NotFound));
+        }
+
+        var comment = CardComment.Create(request.CardId, request.UserId, request.Content);
+
+        context.CardComments.Add(comment);
+        await context.SaveChangesAsync(cancellationToken);
+
+        var dto = new GetBoardByIdResponse.CardCommentDto(
+            comment.Id,
+            user.Id,
+            user.UserName ?? "Unknown",
+            comment.Content,
+            comment.CreatedAt
+        );
+
+        return dto;
+    }
+}

server/src/Application/Cards/GetByBoardId/GetCardsByBoardIdResponse.cs

@@ -8,6 +8,6 @@ public sealed record CardDto(
         int SwimlaneId,
         int BoardId,
         string Title,
-        string Description,
+        string? Description,
         string Rank);
 }

server/src/Application/Cards/GetById/GetCardByIdResponse.cs

@@ -9,7 +9,7 @@ public sealed record GetCardByIdResponse(
     int SwimlaneId,
     int BoardId,
     string Title,
-    string Description,
+    string? Description,
     string Rank,
     DateTimeOffset CreatedAt,
     UserDto CreatedBy,

server/src/Application/Cards/GetByListId/GetCardsByListIdResponse.cs

@@ -8,6 +8,6 @@ public sealed record CardDto(
         int SwimlaneId,
         int BoardId,
         string Title,
-        string Description,
+        string? Description,
         string Rank);
 }

server/src/Application/Cards/GetBySwimlaneId/GetCardsBySwimlaneIdResponse.cs

@@ -8,6 +8,6 @@ public sealed record CardDto(
         int SwimlaneId,
         int BoardId,
         string Title,
-        string Description,
+        string? Description,
         string Rank);
 }

server/src/Application/Cards/Update/UpdateCardCommand.cs

@@ -2,4 +2,4 @@
 
 namespace Snapflow.Application.Cards.Update;
 
-public sealed record UpdateCardCommand(int Id, string Title, string Description) : ICommand<UpdateCardResponse>;
+public sealed record UpdateCardCommand(int Id, string Title, string? Description) : ICommand<UpdateCardResponse>;

server/src/Domain/Boards/Board.cs

@@ -13,7 +13,7 @@ public class Board : Entity<int, Board>
     public Board() { }
 
     public string Title { get; private set; } = null!;
-    public string Description { get; private set; } = "";
+    public string? Description { get; private set; } = "";
 
     public DateTimeOffset CreatedAt { get; private set; }
     public int CreatedById { get; private set; }
@@ -34,7 +34,7 @@ public Board() { }
     public virtual ICollection<Card> Cards { get; private set; } = [];
     public virtual ICollection<Tag> Tags { get; private set; } = [];
 
-    public static Board Create(string title, string description, int createdById, DateTimeOffset createdAt, string? connectionId = null)
+    public static Board Create(string title, string? description, int createdById, DateTimeOffset createdAt, string? connectionId = null)
     {
         var board = new Board
         {
@@ -51,7 +51,7 @@ public static Board Create(string title, string description, int createdById, Da
         return board;
     }
 
-    public void Update(string title, string description, int updatedById, DateTimeOffset updatedAt, string? connectionId = null)
+    public void Update(string title, string? description, int updatedById, DateTimeOffset updatedAt, string? connectionId = null)
     {
         Title = title;
         Description = description;

server/src/Domain/Boards/BoardEvents.cs

@@ -11,7 +11,7 @@ public sealed record BoardCreatedDomainEvent(
 public sealed record BoardUpdatedDomainEvent(
     int Id,
     string Title,
-    string Description,
+    string? Description,
     string? ConnectionId) : IDomainEvent;
 
 public sealed record BoardDeletedDomainEvent(

server/src/Domain/Cards/Card.cs

@@ -20,9 +20,8 @@ public Card() { }
     public virtual List List { get; private set; } = null!;
 
     public string Title { get; private set; } = null!;
-    public string Description { get; private set; } = "";
+    public string? Description { get; private set; } = "";
     public string Rank { get; set; } = null!;
-
     public DateTimeOffset CreatedAt { get; private set; }
     public int CreatedById { get; private set; }
     public virtual IUser CreatedBy { get; private set; } = null!;
@@ -38,8 +37,10 @@ public Card() { }
     public bool DeletedByCascade { get; private set; }
 
     public virtual ICollection<Tag> Tags { get; private set; } = [];
-
-    public static Card Create(int boardId, int swimlaneId, int listId, string title, string description, string rank, int createdById, DateTimeOffset createdAt, string? connectionId = null)
+
+    private readonly List<CardComment> _comments = [];
+    public virtual IReadOnlyCollection<CardComment> Comments => _comments.AsReadOnly();
+    public static Card Create(int boardId, int swimlaneId, int listId, string title, string? description, string rank, int createdById, DateTimeOffset createdAt, string? connectionId = null)
     {
         var card = new Card
         {
@@ -58,7 +59,7 @@ public static Card Create(int boardId, int swimlaneId, int listId, string title,
         return card;
     }
 
-    public void Update(string title, string description, int updatedById, DateTimeOffset updatedAt, string? connectionId = null)
+    public void Update(string title, string? description, int updatedById, DateTimeOffset updatedAt, string? connectionId = null)
     {
         Title = title;
         Description = description;
@@ -88,4 +89,8 @@ public void SoftDelete(int deletedById, DateTimeOffset deletedAt, string? connec
 
         Raise(c => new CardDeletedDomainEvent(Id, BoardId, connectionId));
     }
+    public void AddComment(int userId, string content)
+    {
+        _comments.Add(CardComment.Create(Id, userId, content));
+    }
 }

server/src/Domain/Cards/CardComment.cs

@@ -0,0 +1,24 @@
+using Snapflow.Domain.Users;
+using Snapflow.Common;
+
+namespace Snapflow.Domain.Cards;
+
+public class CardComment : Entity<int, CardComment>
+{
+    public int CardId { get; private set; }
+    public int UserId { get; private set; }
+    public string Content { get; private set; } = null!;
+    public DateTimeOffset CreatedAt { get; private set; }
+    public virtual IUser User { get; private set; } = null!;
+
+    public static CardComment Create(int cardId, int userId, string content)
+    {
+        return new CardComment
+        {
+            CardId = cardId,
+            UserId = userId,
+            Content = content,
+            CreatedAt = DateTimeOffset.UtcNow
+        };
+    }
+}

server/src/Domain/Cards/CardEvents.cs

@@ -8,15 +8,15 @@ public sealed record CardCreatedDomainEvent(
     int SwimlaneId,
     int ListId,
     string Title,
-    string Description,
+    string? Description,
     string Rank,
     string? ConnectionId) : IDomainEvent;
 
 public sealed record CardUpdatedDomainEvent(
     int Id,
     int BoardId,
     string Title,
-    string Description,
+    string? Description,
     string? ConnectionId) : IDomainEvent;
 
 public sealed record CardMovedDomainEvent(

server/src/Infrastructure/Infrastructure.csproj

@@ -10,6 +10,10 @@
     <PackageReference Include="MailKit" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection.EntityFrameworkCore" />
     <PackageReference Include="Microsoft.AspNetCore.Identity" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" />
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" />
     <PackageReference Include="Microsoft.Extensions.Identity.Core" />

server/src/Infrastructure/Persistence/AppDbContext.cs

@@ -14,6 +14,7 @@
 using Microsoft.EntityFrameworkCore.Metadata;
 using Snapflow.Domain.Roles;
 
+
 namespace Snapflow.Infrastructure.Persistence;
 
 public sealed class AppDbContext(
@@ -28,7 +29,7 @@ public sealed class AppDbContext(
     public DbSet<Member> Members { get; private set; }
     public DbSet<Tag> Tags { get; private set; }
     public DbSet<Card> Cards { get; private set; }
-
+    public DbSet<CardComment> CardComments => Set<CardComment>();
     public DbSet<DataProtectionKey> DataProtectionKeys { get; private set; }
 
     protected override void OnModelCreating(ModelBuilder builder)
@@ -44,5 +45,14 @@ protected override void OnModelCreating(ModelBuilder builder)
         {
             builder.Entity(entityType.ClrType).Ignore(nameof(IEntity.DomainEvents));
         }
+        builder.Entity<CardComment>(entity =>
+        {
+            entity.HasOne(x => (AppUser)x.User) 
+                .WithMany()
+                .HasForeignKey(x => x.UserId)
+                .OnDelete(DeleteBehavior.NoAction);
+
+            entity.ToTable("card_comments");
+        });
     }
 }

server/src/Infrastructure/Persistence/Configurations/CardConfiguration.cs

@@ -37,5 +37,8 @@ public void Configure(EntityTypeBuilder<Card> builder)
 
         builder.HasIndex(c => c.ListId)
             .HasFilter("is_deleted = false");
+        builder.Property(card => card.Description)
+            .HasMaxLength(2000)
+            .IsRequired(false);
     }
 }