id: task-100.4 title: Build Kanban board component status: Done assignee: [] created_date: '2025-06-22' updated_date: '2025-07-05' labels: [] dependencies:

• task-100.1
• task-100.3 parent_task_id: task-100

Description

Create interactive Kanban board using React and shadcn/ui. This will be the main view for users to visualize and manage their tasks in a familiar Kanban-style interface.

Component Design

Board Component Requirements

Component Interface:

• Accept tasks array with metadata
• Accept status configuration from project config
• Handle task movement between columns
• Handle task click for detail view

Features

1. Drag and Drop

• Use @dnd-kit/sortable for smooth drag-and-drop
• Visual feedback during drag operations
• Snap-to-column behavior
• Touch support for mobile devices

2. Task Cards

Each task card will display:

• Task ID (e.g., task-42)
• Task title
• Assignee avatar/initials
• Priority indicator (color-coded)
• Label badges
• Subtask count (if applicable)

3. Column Layout

• Dynamic columns based on configured statuses
• Column headers with task counts
• Horizontal scrolling for many columns
• Column width constraints for readability

4. Responsive Design

• Desktop: Multi-column horizontal layout
• Tablet: Scrollable columns with touch support
• Mobile: Stacked vertical layout with collapsible columns

UI Components (shadcn/ui)

• Card - For task cards and column containers
• Badge - For labels and status indicators
• Avatar - For assignee display
• ScrollArea - For column content scrolling
• Skeleton - For loading states

State Management Requirements

Data Fetching:

• Load tasks from /api/tasks endpoint
• Handle loading, error, and success states
• Support data refetching when needed

Task Updates:

• Implement optimistic updates for drag operations
• Rollback changes on API error
• Provide clear error feedback to user

Performance Optimizations

• Virtual scrolling for large task lists
• Memoized task cards to prevent unnecessary re-renders
• Optimistic updates for drag operations
• Debounced API calls for moves

Accessibility

• Keyboard navigation support
• ARIA labels for screen readers
• Focus management during interactions
• High contrast mode support

Acceptance Criteria

• [x] Board displays tasks grouped by status
• [x] Drag and drop functionality works
• [x] Tasks show title ID and assignee
• [x] Board is responsive on mobile
• [x] Loading and error states handled