---
phase: 07-quick-add-library
plan: "02"
subsystem: frontend
tags: [react, typescript, shadcn-ui, i18n, crud]

# Dependency graph
requires:
  - phase: 07-quick-add-library
    plan: "01"
    provides: GET/POST /api/quick-add and PUT/DELETE /api/quick-add/{itemId} REST endpoints
provides:
  - QuickAddItem type and quickAdd API namespace in api.ts
  - useQuickAdd hook with CRUD operations
  - QuickAddPage management page at /quick-add
  - QuickAddPicker dropdown component for dashboard toolbar
  - Sidebar nav item for quick-add library
affects: []

# Tech tracking
tech-stack:
  added: []
  patterns:
    - useQuickAdd hook follows useTemplate pattern (useState + useEffect + refresh after mutations)
    - QuickAddPicker uses DropdownMenu (no Popover available) with find-or-create category logic

key-files:
  created:
    - frontend/src/hooks/useQuickAdd.ts
    - frontend/src/pages/QuickAddPage.tsx
    - frontend/src/components/QuickAddPicker.tsx
  modified:
    - frontend/src/lib/api.ts
    - frontend/src/components/AppLayout.tsx
    - frontend/src/App.tsx
    - frontend/src/i18n/en.json
    - frontend/src/i18n/de.json
    - frontend/src/pages/DashboardPage.tsx

key-decisions:
  - "QuickAddPicker uses DropdownMenu instead of Popover — Popover not in available shadcn/ui components"
  - "QuickAddPicker find-or-create category: case-insensitive name match first, then create variable_expense if not found"
  - "QuickAddPicker fetches quick-add library on mount (direct API call, not hook) — lightweight picker pattern"

requirements-completed: [QADD-01, QADD-02, QADD-03]

# Metrics
duration: 5min
completed: 2026-03-12
---

# Phase 07 Plan 02: Quick-Add Library Frontend Summary

**Quick-add library frontend: management page with CRUD, picker component in dashboard toolbar, API client, hook, routing, and i18n — complete quick-add feature end-to-end**

## Performance

- **Duration:** 5 min
- **Started:** 2026-03-12T12:35:00Z
- **Completed:** 2026-03-12T12:40:00Z
- **Tasks:** 2 (+ 1 auto-approved checkpoint)
- **Files modified:** 9 (plus 3 created)

## Accomplishments

- Added QuickAddItem interface and quickAdd namespace (list/create/update/delete) to api.ts
- Created useQuickAdd hook following the useTemplate pattern with addItem/updateItem/removeItem
- Created QuickAddPage with amber/orange gradient header, add form row, inline edit, EmptyState (Zap icon)
- Created QuickAddPicker dropdown component that fetches library, finds/creates matching category, and creates one_off budget item
- Added Zap nav item to AppLayout sidebar between Template and Settings
- Added /quick-add route to App.tsx
- Added complete quickAdd i18n keys to en.json and de.json (management page + picker keys)
- Wired QuickAddPicker into DashboardPage toolbar next to Create Budget button

## Task Commits

Each task was committed atomically:

1. **Task 1: API client, hook, management page, routing, and i18n** - `411a986` (feat)
2. **Task 2: Quick-add picker in dashboard for one-off budget items** - `8238e07` (feat)

## Files Created/Modified

- `frontend/src/lib/api.ts` - Added QuickAddItem interface and quickAdd API namespace
- `frontend/src/hooks/useQuickAdd.ts` - New hook with CRUD, follows useTemplate pattern
- `frontend/src/pages/QuickAddPage.tsx` - Management page with add form, inline edit table, EmptyState
- `frontend/src/components/QuickAddPicker.tsx` - Dropdown picker with find-or-create category logic
- `frontend/src/components/AppLayout.tsx` - Added Zap nav item for /quick-add
- `frontend/src/App.tsx` - Added /quick-add route with QuickAddPage import
- `frontend/src/i18n/en.json` - Added nav.quickAdd and full quickAdd namespace
- `frontend/src/i18n/de.json` - Added nav.quickAdd and full quickAdd namespace (German)
- `frontend/src/pages/DashboardPage.tsx` - Added QuickAddPicker to toolbar when budget selected

## Decisions Made

- **DropdownMenu instead of Popover:** Popover is not in the project's shadcn/ui component set. DropdownMenu provides equivalent open/close behavior with trigger button.
- **Find-or-create category in picker:** `category_id` is NOT NULL in budget_items. Picker resolves by doing case-insensitive name match against existing categories, creating a `variable_expense` category if no match found.
- **Direct API call in picker (not hook):** QuickAddPicker is a lightweight transient component — fetches on mount with local state, no need for full CRUD hook.

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Used DropdownMenu instead of Popover for picker**
- **Found during:** Task 2
- **Issue:** Plan specified Popover from shadcn/ui, but Popover is not in the project's component set
- **Fix:** Used DropdownMenu which provides equivalent trigger/content/close behavior
- **Files modified:** `frontend/src/components/QuickAddPicker.tsx`
- **Commit:** 8238e07

## Self-Check: PASSED