38a0f0619d
Archive milestone artifacts (roadmap, requirements, audit, phase directories) to .planning/milestones/. Evolve PROJECT.md with validated requirements and decision outcomes. Create MILESTONES.md and RETROSPECTIVE.md. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
112 lines
4.7 KiB
Markdown
112 lines
4.7 KiB
Markdown
---
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phase: 04-frontend
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plan: 01
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subsystem: ui
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tags: [react, typescript, tailwind, lucide-react, axios]
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# Dependency graph
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requires:
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- phase: 03-api-layer
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provides: "GET /admin/health, GET /admin/analytics, GET /admin/alerts, POST /admin/alerts/:id/acknowledge endpoints"
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provides:
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- "AdminService typed methods: getHealth(), getAnalytics(range), getAlerts(), acknowledgeAlert(id)"
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- "AlertEvent, ServiceHealthEntry, AnalyticsSummary TypeScript interfaces"
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- "AlertBanner component: critical active alert display with per-alert acknowledge button"
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- "AdminMonitoringDashboard component: service health grid + analytics summary with range selector"
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affects:
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- 04-02 (wires AlertBanner and AdminMonitoringDashboard into App.tsx Dashboard)
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "useCallback + useEffect for data fetching with re-fetch on state dependency changes"
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- "Promise.all for concurrent independent API calls"
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- "Optimistic UI: AlertBanner onAcknowledge pattern is defined at the parent level to filter local state immediately"
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- "Status dot pattern: w-3 h-3 rounded-full with Tailwind bg-color for health indicators"
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key-files:
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created:
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- frontend/src/components/AlertBanner.tsx
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- frontend/src/components/AdminMonitoringDashboard.tsx
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modified:
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- frontend/src/services/adminService.ts
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key-decisions:
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- "AlertBanner filters to active service_down/service_degraded only — recovery type is informational, not critical (per RESEARCH Pitfall)"
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- "AlertEvent uses snake_case fields (backend returns raw model data), ServiceHealthEntry/AnalyticsSummary use camelCase (backend admin.ts remaps)"
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- "AdminMonitoringDashboard has no required props — self-contained component that fetches its own data"
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patterns-established:
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- "Monitoring dashboard pattern: health grid + analytics stat cards in same component"
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- "Alert banner pattern: top-level conditional render, filters by status=active AND critical alert_type"
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requirements-completed:
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- ALRT-03
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- ANLY-02
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- HLTH-01
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# Metrics
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duration: 2min
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completed: 2026-02-24
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---
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# Phase 04 Plan 01: Monitoring Service Layer and Components Summary
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**AdminService extended with typed monitoring API methods plus AlertBanner and AdminMonitoringDashboard React components ready for mounting in App.tsx**
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## Performance
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- **Duration:** 2 min
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- **Started:** 2026-02-24T21:33:40Z
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- **Completed:** 2026-02-24T21:35:33Z
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- **Tasks:** 2
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- **Files modified:** 3
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## Accomplishments
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- Extended `adminService.ts` with three new exported TypeScript interfaces (AlertEvent, ServiceHealthEntry, AnalyticsSummary) and four new typed API methods (getHealth, getAnalytics, getAlerts, acknowledgeAlert)
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- Created `AlertBanner` component that filters alerts to active critical types only and renders a red banner with per-alert acknowledge buttons
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- Created `AdminMonitoringDashboard` component with a 1x4 service health card grid (colored status dots) and a 1x5 analytics stat card panel with range selector and refresh button
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Extend adminService with monitoring API methods and types** - `f84a822` (feat)
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2. **Task 2: Create AlertBanner and AdminMonitoringDashboard components** - `b457b9e` (feat)
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## Files Created/Modified
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- `frontend/src/services/adminService.ts` - Added AlertEvent, ServiceHealthEntry, AnalyticsSummary interfaces and getHealth(), getAnalytics(), getAlerts(), acknowledgeAlert() methods
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- `frontend/src/components/AlertBanner.tsx` - New component rendering red banner for active service_down/service_degraded alerts with X Acknowledge buttons
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- `frontend/src/components/AdminMonitoringDashboard.tsx` - New component with service health grid and processing analytics panel with range selector
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## Decisions Made
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- AlertBanner renders only `status === 'active'` alerts of type `service_down` or `service_degraded`; `recovery` alerts are filtered out as informational
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- Type casing follows backend API response shapes exactly: AlertEvent is snake_case (raw model), ServiceHealthEntry/AnalyticsSummary are camelCase (backend admin.ts remaps them)
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- AdminMonitoringDashboard is self-contained with no required props, following existing Analytics.tsx pattern
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None.
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- All three files are ready to import in Plan 02 (App.tsx wiring)
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- AlertBanner expects `alerts: AlertEvent[]` and `onAcknowledge: (id: string) => Promise<void>` — parent must manage alert state and provide optimistic acknowledge handler
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- AdminMonitoringDashboard has no required props — drop-in for the monitoring tab
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---
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*Phase: 04-frontend*
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*Completed: 2026-02-24*
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