---
phase: 20-fab-full-screen-catalog-search
plan: 01
subsystem: api, ui
tags: [hono, zustand, tanstack-query, drizzle, tags, global-items]

requires:
  - phase: 19-reference-item-model-tags-schema
    provides: global-items service and route, schema foundation
provides:
  - GET /api/tags endpoint returning all tags
  - GET /api/global-items route registration in index.ts
  - UIStore FAB menu and catalog search state slices
  - useTags hook with 5-min stale cache
  - useGlobalItems hook with optional tags parameter
affects: [20-02-PLAN, phase-21]

tech-stack:
  added: []
  patterns: [public-read auth skip for new GET endpoints]

key-files:
  created:
    - src/server/services/tag.service.ts
    - src/server/routes/tags.ts
    - src/client/hooks/useTags.ts
    - tests/services/tag.service.test.ts
    - tests/routes/tags.test.ts
    - drizzle-pg/0002_square_pyro.sql
  modified:
    - src/db/schema.ts
    - src/server/index.ts
    - src/client/stores/uiStore.ts
    - src/client/hooks/useGlobalItems.ts

key-decisions:
  - "Created tags table in schema (was missing, needed for GET /api/tags)"
  - "Tags endpoint is public-read (no auth), consistent with global-items"

patterns-established:
  - "Tag service pattern: select specific columns (id, name) not full row"

requirements-completed: [CATFLOW-01, CATFLOW-02]

duration: 5min
completed: 2026-04-06
---

# Phase 20 Plan 01: Tags API, Route Registration, and UI State Summary

**Tags endpoint with alphabetical ordering, global-items route registration, UIStore FAB/catalog-search state, and tag-aware useGlobalItems hook**

## Performance

- **Duration:** 5 min
- **Started:** 2026-04-06T05:53:35Z
- **Completed:** 2026-04-06T05:58:27Z
- **Tasks:** 2
- **Files modified:** 10

## Accomplishments
- Created tags table, service, and route with full test coverage (4 tests)
- Registered previously unregistered global-items route in index.ts
- Added public-read auth skips for both /api/tags and /api/global-items
- Extended UIStore with FAB menu state (open/close) and catalog search overlay state (open with mode, close)
- Created useTags hook with 5-minute staleTime caching
- Updated useGlobalItems hook to accept optional tags array for filtering

## Task Commits

Each task was committed atomically:

1. **Task 1 (RED): Tag service and route tests** - `6f07e87` (test)
2. **Task 1 (GREEN): Tags table, service, route, registrations** - `2ec1276` (feat)
3. **Task 2: UIStore extension, useTags hook, useGlobalItems update** - `67facea` (feat)

## Files Created/Modified
- `src/db/schema.ts` - Added tags table definition
- `drizzle-pg/0002_square_pyro.sql` - Migration for tags table
- `src/server/services/tag.service.ts` - getAllTags function (id+name, alphabetical)
- `src/server/routes/tags.ts` - GET / handler returning all tags
- `src/server/index.ts` - Registered global-items and tags routes, added auth skips
- `src/client/stores/uiStore.ts` - Added FAB menu and catalog search state slices
- `src/client/hooks/useTags.ts` - Tag fetching hook with staleTime cache
- `src/client/hooks/useGlobalItems.ts` - Added optional tags parameter
- `tests/services/tag.service.test.ts` - Service-level tests for getAllTags
- `tests/routes/tags.test.ts` - Route-level tests for GET /api/tags

## Decisions Made
- Created tags table in schema since it was referenced by the plan but didn't exist yet (Rule 3 deviation)
- Made both /api/tags and /api/global-items public-read (GET requests skip auth middleware)

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Created missing tags table in schema**
- **Found during:** Task 1 (Tag service implementation)
- **Issue:** Plan referenced `tags` table from schema.ts but no such table existed in the database schema
- **Fix:** Added tags table definition to schema.ts and generated migration (0002_square_pyro.sql)
- **Files modified:** src/db/schema.ts, drizzle-pg/0002_square_pyro.sql, drizzle-pg/meta/
- **Verification:** Migration generated successfully, tests pass with PGlite
- **Committed in:** 2ec1276 (Task 1 GREEN commit)

---

**Total deviations:** 1 auto-fixed (1 blocking)
**Impact on plan:** Essential for task completion. Tags table is required by the entire phase. No scope creep.

## Issues Encountered
- Pre-existing global-items route test failures (9 of 10 tests fail) due to async/sync mismatch in test helper usage. Out of scope for this plan.

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

## Known Stubs
None - all functionality is fully wired.

## Next Phase Readiness
- Tags endpoint and UIStore state ready for Plan 02's UI components (FabMenu, CatalogSearchOverlay, TagChips)
- useTags and useGlobalItems hooks ready for consumption by overlay components

---
*Phase: 20-fab-full-screen-catalog-search*
*Completed: 2026-04-06*