---
phase: 02-planning-threads
plan: 02
subsystem: ui
tags: [react, tanstack-router, tanstack-query, zustand, tabs, threads, candidates]

requires:
  - phase: 02-planning-threads
    provides: Thread and candidate API endpoints at /api/threads
  - phase: 01-foundation-and-collection
    provides: SlideOutPanel, ConfirmDialog, ItemCard, ItemForm, CategoryPicker, ImageUpload, uiStore pattern
provides:
  - Tabbed home page with gear/planning views
  - Thread list with card UI showing candidate count and price range
  - Thread detail page with candidate card grid
  - Candidate add/edit via slide-out panel with same fields as items
  - Thread resolution flow with confirmation dialog and collection integration
  - TanStack Query hooks for thread and candidate CRUD
affects: [03-setups-and-dashboard]

tech-stack:
  added: []
  patterns: [tab navigation via URL search params, dual slide-out panel pattern, cross-query invalidation on resolution]

key-files:
  created:
    - src/client/hooks/useThreads.ts
    - src/client/hooks/useCandidates.ts
    - src/client/components/ThreadTabs.tsx
    - src/client/components/ThreadCard.tsx
    - src/client/components/CandidateCard.tsx
    - src/client/components/CandidateForm.tsx
    - src/client/routes/threads/$threadId.tsx
  modified:
    - src/client/stores/uiStore.ts
    - src/client/routes/index.tsx
    - src/client/routes/__root.tsx

key-decisions:
  - "Tab navigation uses URL search params (?tab=gear|planning) via TanStack Router validateSearch for shareable URLs"
  - "Candidate panel runs alongside item panel as separate SlideOutPanel instance, controlled by independent uiStore state"
  - "Resolution invalidates threads, items, and totals queries for cross-tab data freshness"
  - "FAB hidden on thread detail pages to avoid confusion between item add and candidate add"

patterns-established:
  - "Tab navigation pattern: URL search params with z.enum().catch() for default, ThreadTabs renders underline indicator"
  - "Dual panel pattern: root layout renders two SlideOutPanel instances with independent open/close state"
  - "Cross-query invalidation: useResolveThread invalidates threads + items + totals on success"

requirements-completed: [THRD-01, THRD-02, THRD-03, THRD-04]

duration: 4min
completed: 2026-03-15
---

# Phase 2 Plan 02: Thread Frontend UI Summary

**Tabbed home page with thread list cards, candidate grid detail view, slide-out candidate CRUD, and resolution flow that adds winners to the collection**

## Performance

- **Duration:** 4 min
- **Started:** 2026-03-15T10:42:22Z
- **Completed:** 2026-03-15T10:46:26Z
- **Tasks:** 2
- **Files modified:** 10

## Accomplishments
- Tabbed home page switching between My Gear collection and Planning thread list
- Thread cards displaying name, candidate count, creation date, and price range chips
- Thread detail page with candidate card grid matching ItemCard visual style
- Candidate add/edit via slide-out panel with all item fields (name, weight, price, category, notes, URL, image)
- Resolution confirmation dialog that picks winner, creates collection item, and archives thread
- 63 existing tests still pass with zero regressions

## Task Commits

Each task was committed atomically:

1. **Task 1: Hooks, store, tab navigation, and thread list** - `a9d624d` (feat)
2. **Task 2: Thread detail page with candidate CRUD and resolution flow** - `7d043a8` (feat)

## Files Created/Modified
- `src/client/hooks/useThreads.ts` - TanStack Query hooks for thread CRUD and resolution
- `src/client/hooks/useCandidates.ts` - TanStack Query mutation hooks for candidate CRUD
- `src/client/stores/uiStore.ts` - Extended with candidate panel and resolve dialog state
- `src/client/components/ThreadTabs.tsx` - Tab switcher with active underline indicator
- `src/client/components/ThreadCard.tsx` - Thread list card with candidate count and price range chips
- `src/client/components/CandidateCard.tsx` - Candidate card with edit, delete, and pick winner actions
- `src/client/components/CandidateForm.tsx` - Candidate form with dollar-to-cents conversion
- `src/client/routes/index.tsx` - Refactored to tabbed HomePage with CollectionView and PlanningView
- `src/client/routes/threads/$threadId.tsx` - Thread detail page with candidate grid
- `src/client/routes/__root.tsx` - Added candidate panel, delete dialog, and resolve dialog

## Decisions Made
- Tab navigation uses URL search params (?tab=gear|planning) for shareable/bookmarkable URLs
- Candidate panel is a separate SlideOutPanel instance with independent state in uiStore
- Resolution invalidates threads, items, and totals queries to keep cross-tab data fresh
- FAB hidden on thread detail pages to avoid confusion between item add and candidate add
- useMatchRoute detects thread detail page in root layout for candidate panel context

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Full thread planning workflow operational end-to-end
- Thread and candidate UI consumes all API endpoints from Plan 01
- Ready for Phase 3 (Setups and Dashboard) which may reference threads for impact preview

---
*Phase: 02-planning-threads*
*Completed: 2026-03-15*

## Self-Check: PASSED

All 10 files verified present. Both commit hashes (a9d624d, 7d043a8) verified in git log.