[Task]: Implement chat discussions and threads for tasks with @ mentions #57
Description
Objective
Implement a comprehensive discussion and threading system for tasks that allows team members to communicate effectively through nested comments, @mentions for user notifications, and #references for linking to related issues, PRs, and other tasks.
Scope
In scope:
Backend Implementation:
- Create
commentsentity with fields:task_id,user_id,content,parent_comment_id(for threading) - POST
/api/tasks/:id/commentsendpoint for creating comments - POST
/api/comments/:id/repliesendpoint for creating threaded replies - GET
/api/tasks/:id/commentsreturns nested threads structure - DELETE
/api/comments/:idendpoint for comment deletion - PUT
/api/comments/:idendpoint for editing comments - Store mentioned users in
mentionstable for tracking
Mention System:
- @mention parsing logic to detect user mentions in comments
- User search/autocomplete API for @mentions
- Notification system for mentioned users
Reference System:
- #reference parsing logic to detect and link issues/PRs/tasks
- Support for #123 format to reference issues and PRs within repository
- Automatic linking and preview of referenced items
- Store references in database for relationship tracking
Frontend Implementation:
- Markdown rendering support for comments with @mentions and #references
- Rich text editor with autocomplete for @mentions and #references
- Threaded reply UI with proper nesting visualization
- Comment actions: edit, delete, reply
Testing & Documentation:
- Unit tests for comment CRUD and threading logic
- Unit tests for @mention and #reference parsing
- API documentation updated with new endpoints
Out of scope:
- Real-time notifications for mentions (separate issue)
- UI component to display timeline (separate issue)
- Emoji reactions to comments
- Comment attachments/file uploads
- Comment search functionality