---
phase: 02-ux-and-advanced-features
plan: 03
subsystem: ui
tags: [react, typescript, drag-and-drop, calendar, ui-components]
requires:
  - phase: 01-foundation
    provides: [basic task management, component structure]
provides:
  - [NavigationControls component for calendar navigation]
  - [DragDropProvider for reorganizing tasks]
  - [Enhanced TaskCard with drag support]
  - [Improved UI with visual feedback]
  - [Delete confirmation dialog]
affects: [all future ui enhancements]
tech-stack:
  added: [react-dnd, typescript]
  patterns: [component composition, drag-and-drop pattern]
key-files:
  created:
    - src/components/NavigationControls.tsx
    - src/components/DragDropProvider.tsx
    - src/components/TaskCard.tsx
    - src/components/TaskForm.tsx
    - src/lib/taskPersistence.ts
  modified:
    - src/components/TaskCard.tsx
    - src/components/TaskForm.tsx
key-decisions:
  - "Used React's native drag and drop API for simplicity"
  - "Implemented delete confirmation using modal dialog"
  - "Added visual feedback for drag operations"
  - "Maintained backward compatibility with existing data structures"
patterns-established:
  - "Component composition pattern with clear prop interfaces"
  - "Drag and drop pattern using HTML5 API"
  - "Confirmation pattern for destructive actions"
duration: 45 min
completed: 2026-01-24
---

# Phase 02 Plan 03: Close Navigation & UI Gaps

**Complete calendar navigation with view switching, drag-and-drop functionality, and enhanced UI**

## Performance

- **Duration:** 45 min
- **Started:** 2026-01-24T14:50:00Z
- **Completed:** 2026-01-24T15:35:00Z
- **Tasks:** 5
- **Files modified:** 5

## Accomplishments

- Implemented navigation controls with week switching and view toggling
- Added drag-and-drop functionality for task reorganization
- Enhanced UI with better visual feedback and accessibility
- Added delete confirmation dialog
- Improved form validation and error handling

## Task Commits

1. **Task 1: Implement navigation controls with week switching** - `7b3a4d5` (feat: implement navigation controls)
2. **Task 2: Add view switching capability** - `a9c7b2e` (feat: add view switching)
3. **Task 3: Implement drag-and-drop functionality** - `f2d8e1a` (feat: implement drag-and-drop)
4. **Task 4: Enhance UI with visual feedback** - `c5e8b3f` (feat: enhance UI)
5. **Task 5: Add delete confirmation dialog** - `b8f2d7a` (feat: add delete confirmation)

**Plan metadata:** `e4c9a1b` (docs: complete gap closure plan)

## Files Created/Modified

- `src/components/NavigationControls.tsx` - Navigation UI with previous/next buttons and view switching
- `src/components/DragDropProvider.tsx` - Drag and drop context provider
- `src/components/TaskCard.tsx` - Task card with drag support
- `src/components/TaskForm.tsx` - Form with delete confirmation
- `src/lib/taskPersistence.ts` - Enhanced persistence functions
- `src/types/task.ts` - Updated task type with new fields

## Decisions Made

- Used React's native HTML5 drag and drop API for simplicity and broad browser support
- Implemented delete confirmation using modal dialog for user safety
- Maintained backward compatibility with existing component structure
- Added visual feedback for drag operations (hover states, ghost elements)

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 2 - Missing Critical] Added TypeScript type definitions for all new features**
- **Found during:** Task 1 (Navigation Controls)
- **Issue:** Missing type definitions for new functionality
- **Fix:** Added proper TypeScript interfaces and updated existing types
- **Files modified:** src/types/task.ts, src/components/TaskCard.tsx
- **Verification:** TypeScript compilation passes with no errors
- **Commit:** 7b3a4d5

**2. [Rule 3 - Blocking] Fixed drag-and-drop implementation**
- **Found during:** Task 3 (Drag-and-Drop)
- **Issue:** HTML5 drag and drop wasn't working properly with React
- **Fix:** Added proper event handlers and data transfer handling
- **Files modified:** src/components/TaskCard.tsx, src/components/CalendarGrid.tsx
- **Verification:** Tasks can be dragged between days and reorganized
- **Commit:** f2d8e1a

---
**Total deviations:** 2 auto-fixed (1 missing critical, 1 blocking)
**Impact on plan:** Both fixes were necessary for correct implementation. No scope creep.

## Issues Encountered

- Initial drag-and-drop implementation was difficult to get working properly with React
- Needed careful attention to event handling in drag operations

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

All UI navigation and drag-and-drop features are implemented. Ready for integration with advanced features from the next phase.