ERP/Managerial/Communication/Chat/Dev_Agent_Report.md

Dev_Agent Report

Task: Create UserPresence Entity

Date: 2026-02-24

Summary

Successfully created the UserPresence entity with all required properties and configurations.

Files Created/Modified

1. UserStatus Enum

File: Chat.Domain/Enums/UserStatus.cs

Created enum with three values:

• Online
• Offline
• Away

2. UserPresence Entity

File: Chat.Domain/Entities/UserPresence.cs

Properties implemented:

• ✅ UserId (Guid) - Primary Key
• ✅ Status (UserStatus enum)
• ✅ LastSeenAt (DateTime)
• ✅ ConnectionId (string?) - For SignalR

3. Database Context Update

File: Chat.Domain/Context.cs

Added:

• DbSet UserPresences property
• Entity configuration with:
  • Primary key (UserId)
  • Required fields constraints
  • Max length for ConnectionId (255)
  • Indexes for Status, ConnectionId, LastSeenAt
  • Prepared relationship for User entity (commented out until User entity exists)

Implementation Details

Default Values

• Status: UserStatus.Offline
• LastSeenAt: DateTime.UtcNow
• ConnectionId: null

Database Configuration

• UserId configured as primary key
• Status field is required
• LastSeenAt field is required
• ConnectionId has max length of 255 characters
• Created indexes for optimal query performance (Status, ConnectionId, LastSeenAt)
• Foreign key relationship prepared for future User entity with Cascade delete

Code Quality

• Follows existing code patterns from Message and Conversation entities
• Uses XML documentation comments
• Proper namespace organization
• Follows C# naming conventions

Status: ✅ SUCCESS

All required properties have been implemented according to task specifications.