---
id: T02
parent: S04
milestone: M010
provides: []
requires: []
affects: []
key_files: ["frontend/src/components/SearchAutocomplete.tsx", "frontend/src/api/public-client.ts", "frontend/src/pages/Home.tsx", "frontend/src/pages/SearchResults.tsx", "frontend/src/App.css"]
key_decisions: ["Popular suggestions fetched once on mount via ref guard, not re-fetched on every focus", "Suggestion items use button elements since they trigger onSearch callback, not direct navigation"]
patterns_established: []
drill_down_paths: []
observability_surfaces: []
duration: ""
verification_result: "Frontend build (tsc + vite) passes with zero errors. Backend suggestion tests at backend/tests/test_search.py exist but require live PostgreSQL on ub01."
completed_at: 2026-03-31T06:38:55.912Z
blocker_discovered: false
---

# T02: Extracted inline typeahead from Home.tsx into shared SearchAutocomplete component with popular-suggestions-on-focus, wired into both Home and SearchResults pages

> Extracted inline typeahead from Home.tsx into shared SearchAutocomplete component with popular-suggestions-on-focus, wired into both Home and SearchResults pages

## What Happened
---
id: T02
parent: S04
milestone: M010
key_files:
  - frontend/src/components/SearchAutocomplete.tsx
  - frontend/src/api/public-client.ts
  - frontend/src/pages/Home.tsx
  - frontend/src/pages/SearchResults.tsx
  - frontend/src/App.css
key_decisions:
  - Popular suggestions fetched once on mount via ref guard, not re-fetched on every focus
  - Suggestion items use button elements since they trigger onSearch callback, not direct navigation
duration: ""
verification_result: passed
completed_at: 2026-03-31T06:38:55.913Z
blocker_discovered: false
---

# T02: Extracted inline typeahead from Home.tsx into shared SearchAutocomplete component with popular-suggestions-on-focus, wired into both Home and SearchResults pages

**Extracted inline typeahead from Home.tsx into shared SearchAutocomplete component with popular-suggestions-on-focus, wired into both Home and SearchResults pages**

## What Happened

Created SearchAutocomplete.tsx encapsulating debounced typeahead search (2+ chars), popular suggestions on empty focus (fetched once on mount from /api/v1/search/suggestions), outside-click/Escape dismissal, and Enter submission via onSearch callback. Added fetchSuggestions() and types to the API client. Refactored Home.tsx to replace ~80 lines of inline typeahead with a single component. Refactored SearchResults.tsx similarly. Added CSS for popular suggestions header, buttons, and type badge color variants.

## Verification

Frontend build (tsc + vite) passes with zero errors. Backend suggestion tests at backend/tests/test_search.py exist but require live PostgreSQL on ub01.

## Verification Evidence

| # | Command | Exit Code | Verdict | Duration |
|---|---------|-----------|---------|----------|
| 1 | `cd frontend && npm run build` | 0 | ✅ pass | 2800ms |


## Deviations

Original verification failure used wrong test path (tests/test_search.py vs backend/tests/test_search.py). Backend tests require PostgreSQL on ub01, unavailable locally.

## Known Issues

None.

## Files Created/Modified

- `frontend/src/components/SearchAutocomplete.tsx`
- `frontend/src/api/public-client.ts`
- `frontend/src/pages/Home.tsx`
- `frontend/src/pages/SearchResults.tsx`
- `frontend/src/App.css`


## Deviations
Original verification failure used wrong test path (tests/test_search.py vs backend/tests/test_search.py). Backend tests require PostgreSQL on ub01, unavailable locally.

## Known Issues
None.
