A modern, real-time team collaboration platform built with .NET, designed to facilitate seamless communication through persistent chat rooms, direct messages, and private groups. Inspired by Slack and Discord, SharpTalk provides a clean, intuitive interface for team collaboration.

SharpTalk is a multi-tenant collaboration tool organized around Workspaces, where teams can communicate through Channels, share files, and collaborate in real-time. The platform supports:

• Multi-Workspace Architecture: Users can belong to multiple independent workspaces
• Real-Time Communication: Instant message delivery using SignalR WebSockets
• Role-Based Access Control: Owner, Admin, and Member roles with appropriate permissions
• Rich Messaging: Support for markdown, reactions, and message threading
• File Sharing: Drag-and-drop file uploads with cloud storage integration
• Presence Tracking: Online/offline status and typing indicators

• Framework: ASP.NET Core 10 Web API
• Real-Time: SignalR (WebSocket-based communication)
• Database: PostgreSQL 15
• ORM: Entity Framework Core
• Authentication: JWT (JSON Web Tokens)
• Caching/PubSub: Redis (for presence tracking and SignalR scale-out)
• File Storage: Local storage (with Azure Blob Storage planned)

• Framework: Blazor WebAssembly
• State Management: Blazored.LocalStorage
• Authentication: ASP.NET Core Authentication State Provider
• Styling: Vanilla CSS with premium dark mode and glassmorphism design

• Containerization: Docker & Docker Compose
• Database: PostgreSQL 15 (Docker container)
• Cache: Redis (Docker container)

Authentication & Identity

• ✅ User registration with email/password
• ✅ User login with JWT token generation
• ✅ Secure API endpoints with JWT authentication
• ✅ Custom authentication state provider for Blazor
• ✅ Case-insensitive email handling
• ✅ Automatic redirection for invalid sessions

Workspace Management

• ✅ Create and delete workspaces
• ✅ Rename workspaces and update descriptions
• ✅ Invite users and manage members
• ✅ Leave workspace functionality
• ✅ Workspace settings modal

Channel Management

• ✅ Create, list, and manage channels
• ✅ Public and private channel support
• ✅ Channel member tracking

Real-Time Messaging

• ✅ SignalR hub configuration with Redis backplane
• ✅ Instant message delivery and broadcasting
• ✅ Connection management and auto-reconnect

Direct Messaging

• ✅ 1:1 private conversations (Global DMs)
• ✅ Group Direct Messages (Support for multiple members)
• ✅ Unified DM list across workspaces

Presence & Activity

• ✅ Real-time Online/Offline status tracking
• ✅ Integration with Redis for scalable presence
• ✅ Visual status indicators in UI

User Experience

• ✅ Modern "Slack-like" UI with Dark Mode
• ✅ User Settings and Profile Management
• ✅ Avatar uploading and cropping
• ✅ Responsive design for mobile/desktop

Notifications & Unread

• ⏳ Unread message counters
• ⏳ Typing indicators
• ⏳ "Edited" message status

File Sharing

• File upload endpoint with validation
• Drag-and-drop file upload in UI
• Image and GIF auto-expansion in chat
• Cloud storage integration (Azure Blob Storage)

Message Threading

• Reply to specific messages
• Threaded conversation view
• Thread notifications

Search Functionality

• Global message search
• User search
• Quick Switcher (Ctrl+K) for navigation

Future Enhancements

• Workspace analytics
• Voice/video integration
• Third-party integrations

SharpTalk/
├── SharpTalk.Api/              # Backend Web API
│   ├── Controllers/            # API endpoints
│   │   ├── AuthController.cs
│   │   ├── ChannelController.cs
│   │   ├── MessageController.cs
│   │   ├── UserController.cs
│   │   └── WorkspaceController.cs
│   ├── Data/                   # Database context
│   │   └── ApplicationDbContext.cs
│   ├── Entities/               # EF Core entities
│   │   ├── Attachment.cs
│   │   ├── Channel.cs
│   │   ├── ChannelMember.cs
│   │   ├── Message.cs
│   │   ├── Reaction.cs
│   │   ├── User.cs
│   │   ├── Workspace.cs
│   │   └── WorkspaceMember.cs
│   ├── Hubs/                   # SignalR hubs
│   │   └── ChatHub.cs
│   ├── Migrations/             # Database migrations
│   └── Program.cs              # API startup configuration
│
├── SharpTalk.Web/              # Frontend Blazor WASM
│   ├── Auth/                   # Authentication
│   │   └── CustomAuthStateProvider.cs
│   ├── Layout/                 # Layout components
│   │   ├── MainLayout.razor
│   │   ├── NavMenu.razor
│   │   └── LandingLayout.razor
│   ├── Pages/                  # Page components
│   │   ├── Login.razor
│   │   ├── Register.razor
│   │   ├── Home.razor
│   │   └── Index.razor
│   ├── Services/               # Business logic services
│   │   ├── WorkspaceService.cs
│   │   ├── ChannelService.cs
│   │   ├── ChatService.cs
│   │   └── UserService.cs
│   ├── Shared/                 # Shared components
│   │   ├── Sidebar.razor
│   │   ├── ChannelList.razor
│   │   ├── ChatArea.razor
│   │   ├── CreateWorkspaceModal.razor
│   │   ├── CreateChannelModal.razor
│   │   ├── WorkspaceSettingsModal.razor
│   │   ├── UserSettingsModal.razor
│   │   └── UserProfile.razor
│   └── Program.cs              # Blazor startup configuration
│
├── SharpTalk.Shared/           # Shared DTOs and models
│   └── DTOs/                   # Data transfer objects
│       ├── AuthResponse.cs
│       ├── ChannelDto.cs
│       ├── CreateChannelRequest.cs
│       ├── CreateWorkspaceRequest.cs
│       ├── InviteUserRequest.cs
│       ├── LoginRequest.cs
│       ├── MessageDto.cs
│       ├── RegisterRequest.cs
│       ├── RemoveMemberRequest.cs
│       ├── RenameWorkspaceRequest.cs
│       ├── SendMessageRequest.cs
│       ├── TransferOwnershipRequest.cs
│       ├── UpdateMemberRoleRequest.cs
│       ├── UpdateWorkspaceDescriptionRequest.cs
│       ├── UserInfo.cs
│       ├── UserStatusDto.cs
│       ├── WorkspaceDto.cs
│       └── WorkspaceMemberDto.cs
│
├── plans/                      # Feature planning documents
│   ├── workspace-management-features.md
│   └── user-avatar-features.md
│
├── docker-compose.yml          # Docker services configuration
├── IMPLEMENTATION_PLAN.md      # Detailed implementation roadmap
├── Requirements Document.txt   # Original requirements specification
└── README.md                   # This file

The application uses PostgreSQL with the following core entities:

• User: User accounts with authentication and profile data
• Workspace: Independent collaboration spaces
• WorkspaceMember: Join table linking users to workspaces with roles
• Channel: Communication channels within workspaces
• ChannelMember: Join table tracking channel membership
• Message: Chat messages with threading support
• Attachment: File attachments linked to messages
• Reaction: Emoji reactions on messages

• Workspace Owner: Creator of the workspace, can delete and manage all aspects
• Workspace Admin: Can manage users, channels, and moderation
• Member: Standard user, can send messages and join public channels
• Guest (Future): Restricted access to specific channels

• .NET 10 SDK
• Docker Desktop (for PostgreSQL and Redis)
• Git

1. Clone the repository

   git clone <repository-url>
   cd SharpTalk

2. Start infrastructure services

   docker-compose up -d

   This starts:

   • PostgreSQL on port 5433
   • Redis on port 6379

3. Configure connection strings

   Update SharpTalk.Api/appsettings.json:

   {
     "ConnectionStrings": {
       "DefaultConnection": "Host=localhost;Port=5433;Database=sharptalk;Username=postgres;Password=password"
     },
     "JwtSettings": {
       "Secret": "your-super-secret-key-at-least-32-characters-long",
       "Issuer": "SharpTalk",
       "Audience": "SharpTalkUsers"
     }
   }

4. Run database migrations

   cd SharpTalk.Api
   dotnet ef database update

5. Start the API

   dotnet run

   The API will be available at http://localhost:5298

6. Start the Web client (in a new terminal)

   cd SharpTalk.Web
   dotnet run

   The web application will be available at http://localhost:5000

# Run all tests
dotnet test

# Run tests with coverage
dotnet test --collect:"XPlat Code Coverage"

cd SharpTalk.Api
dotnet ef migrations add MigrationName
dotnet ef database update

# Build API
cd SharpTalk.Api
dotnet publish -c Release

# Build Web
cd SharpTalk.Web
dotnet publish -c Release

• Project setup and structure
• Docker Compose configuration
• EF Core entities and relationships
• Database migrations
• Authentication (JWT)
• Workspace CRUD operations
• Channel CRUD operations
• Private channel support
• Frontend layout and navigation
• Authentication state management
• Real-time messaging (SignalR) - In Progress

• Direct Messages (1:1 and Group)
• Online/offline status tracking
• Typing indicators
• Unread message counters
• Message editing indicators

• File upload and sharing
• Message threading
• Search functionality
• Workspace management enhancements
• User profile and avatar features

1. Complete real-time messaging implementation
2. Add presence tracking with Redis
3. Implement typing indicators
4. Add unread message counters
5. Implement message editing and deletion

1. Direct messaging (1:1 and group)
2. File upload and sharing
3. Message threading
4. Enhanced workspace management
5. User profile and avatar features

1. Global search functionality
2. Quick Switcher (Ctrl+K)
3. Notifications system
4. Workspace analytics
5. Mobile app (React Native or MAUI)
6. Voice/video integration
7. Integration with third-party services (GitHub, Jira, etc.)

Contributions are welcome! Please follow these guidelines:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

• Follow C# coding conventions
• Write unit tests for new features
• Update documentation as needed
• Ensure all tests pass before submitting PR
• Follow the existing code style and structure

This project is licensed under the MIT License - see the LICENSE file for details.

• Inspired by Slack and Discord
• Built with Microsoft .NET ecosystem
• Uses SignalR for real-time communication
• Styled with modern CSS and glassmorphism design principles

For questions, issues, or suggestions:

• Open an issue on GitHub
• Check the Requirements Document.txt for detailed specifications
• Review the IMPLEMENTATION_PLAN.md for development progress

• ASP.NET Core Documentation
• Blazor Documentation
• SignalR Documentation
• Entity Framework Core Documentation
• PostgreSQL Documentation
• Redis Documentation

Built with ❤️ using .NET 10