---
phase: 04-marketplace-portal-navigation
plan: 01
subsystem: ui
tags: [react, vitest, zustand, next-intl, marketplace, testing-library]

requires:
  - phase: 03-module-system-domaincheck
    provides: /modules and /modules/active API endpoints, module-registry CRUD
provides:
  - Vitest test infrastructure for apps/web (jsdom + testing-library)
  - MarketplaceCard component with activation controls
  - /marketplace page with parallel fetch, activation Map, role gate
  - marketplace-store (Zustand) with sidebarRefreshKey + selectedTenantId
  - marketplace i18n namespace (DE/EN) with full copywriting contract
affects: [04-02 filters/detail, 04-03 sidebar, 04-04 navigation]

tech-stack:
  added: [vitest, @testing-library/react, @testing-library/jest-dom, @testing-library/user-event, jsdom, @vitejs/plugin-react]
  patterns: [TDD red-green, parallel fetch with activation Map, Zustand cross-component signaling]

key-files:
  created:
    - apps/web/vitest.config.ts
    - apps/web/src/test/setup.ts
    - apps/web/src/lib/stores/marketplace-store.ts
    - apps/web/src/app/(portal)/marketplace/page.tsx
    - apps/web/src/app/(portal)/marketplace/components/MarketplaceCard.tsx
    - apps/web/src/app/(portal)/marketplace/components/MarketplaceCard.test.tsx
    - apps/web/src/app/(portal)/marketplace/marketplace.test.tsx
  modified:
    - apps/web/package.json
    - apps/web/src/messages/de.json
    - apps/web/src/messages/en.json

key-decisions:
  - "TDD red-green workflow: tests first, then implementation"
  - "Parallel fetch (Promise.all) with client-side activation Map instead of per-card fetch"
  - "marketplace-store signals sidebar refresh via sidebarRefreshKey counter"

patterns-established:
  - "Vitest + testing-library + jsdom for React component tests"
  - "next-intl mock pattern: vi.mock returning key lookup function"
  - "Zustand store mock pattern for isolated component testing"

requirements-completed: [MRKT-01, MRKT-02, MRKT-04]

duration: 15min
completed: 2026-06-23
---

# Plan 04-01: Marketplace Browse + Activate Summary

**Vitest test infra, MarketplaceCard component, and /marketplace page with parallel fetch, activation Map, and role-gated card grid — 9 tests green**

## Performance

- **Duration:** ~15 min (across 2 sessions, paused after RED phase)
- **Started:** 2026-06-22T12:45:00Z
- **Completed:** 2026-06-23T06:52:00Z
- **Tasks:** 3
- **Files modified:** 10

## Accomplishments
- Vitest + testing-library test infrastructure operational in apps/web
- MarketplaceCard with icon, name, localized description, category badge, status badge, activate/deactivate button
- /marketplace page with Promise.all parallel fetch, activation Map, admin role gate, empty state, responsive 1/2/3/4-col grid
- marketplace-store with sidebarRefreshKey signal for sidebar re-fetch after activation
- Full marketplace i18n namespace (DE/EN) with all copywriting contract keys

## Task Commits

1. **Task 1: Vitest test infrastructure** - `e50b3c7` (chore)
2. **Task 2: MarketplaceCard + i18n** - `a64f889` (test/RED), `1e494b3` (feat/GREEN)
3. **Task 3: Marketplace page + store** - `0b7cf66` (test/RED), `fb6a340` (feat/GREEN)

## Files Created/Modified
- `apps/web/vitest.config.ts` - Vitest config with jsdom + react plugin
- `apps/web/src/test/setup.ts` - jest-dom matcher registration
- `apps/web/src/lib/stores/marketplace-store.ts` - Zustand store for sidebar refresh signal + tenant context
- `apps/web/src/app/(portal)/marketplace/page.tsx` - Marketplace grid page with fetch + role gate
- `apps/web/src/app/(portal)/marketplace/components/MarketplaceCard.tsx` - Module card component
- `apps/web/src/app/(portal)/marketplace/components/MarketplaceCard.test.tsx` - 5 card unit tests
- `apps/web/src/app/(portal)/marketplace/marketplace.test.tsx` - 4 page tests
- `apps/web/src/messages/de.json` - marketplace namespace added
- `apps/web/src/messages/en.json` - marketplace namespace added

## Decisions Made
- Followed plan as specified, no significant deviations
- Used admin/modules/page.tsx as direct analog for fetch + Map pattern

## Deviations from Plan
None - plan executed exactly as written.

## Issues Encountered
- pnpm install needed at session start (node_modules not present from fresh checkout)

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

## Next Phase Readiness
- Plan 04-02 (filters, search, detail view, tenant context) can start — marketplace page and store are in place
- marketplace-store.selectedTenantId ready for tenant dropdown in 04-02
- sidebarRefreshKey ready for sidebar subscription in 04-03

---
*Phase: 04-marketplace-portal-navigation*
*Completed: 2026-06-23*