MOPC-Portal/.planning/phases/02-ranking-dashboard-ui/02-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
02-ranking-dashboard-ui	02	ui	react dnd-kit trpc ranking drag-and-drop sheet-panel	phase provides 02-01 RankingDashboard stub, saveReorder mutation, Ranking tab entry point	Full RankingDashboard component with drag-and-drop reorder, AI vs override visual states, and Sheet-based juror evaluation detail panel	02-03-advance-projects	added patterns useRef init guard: initialized.current prevents localOrder re-init from server data on every re-render — eliminates snap-back Fire-and-forget mutation inside setLocalOrder callback: setLocalOrder runs synchronously first, mutation fires async, no onSuccess invalidation Double cast via unknown: Prisma JsonValue cast to RankedProjectEntry[] requires (json ?? []) as unknown as RankedProjectEntry[] getFullDetail response shape: { project, assignments, stats } — title accessed as projectDetail.project.title	created modified src/components/admin/round/ranking-dashboard.tsx	Double cast (as unknown as RankedProjectEntry[]) required for Prisma JsonValue — direct cast rejected by TypeScript strict mode getFullDetail returns { project, assignments, stats } shape, not flat — project title accessed via .project.title saveReorder mutation has no onSuccess invalidation — avoids triggering re-fetch that would reset localOrder	SortableProjectRow sub-component defined above export in same file (no separate file needed for inline sub-components) Per-category drag context: separate DndContext per category prevents cross-category drag	DASH-01 DASH-02 DASH-03 DASH-04	8min	2026-02-27

Phase 2 Plan 02: Full RankingDashboard Component Summary

Full RankingDashboard with per-category drag-and-drop (dnd-kit), AI vs override rank badges, snap-back-proof localOrder state, and lazy-loaded Sheet detail panel showing per-juror evaluation breakdown

Performance

• Duration: ~8 min
• Started: 2026-02-27T08:40:00Z
• Completed: 2026-02-27T08:48:11Z
• Tasks: 1
• Files modified: 1

Accomplishments

• Replaced RankingDashboard stub with full 486-line implementation
• DASH-01: Ranked project list per category (STARTUP / BUSINESS_CONCEPT) with composite score, pass rate, and evaluator count displayed per row
• DASH-02: Drag-and-drop reorder via GripVertical handle using dnd-kit (DndContext + SortableContext + useSortable), fire-and-forget saveReorder mutation
• DASH-03: localOrder stored in useState with useRef guard (initialized.current) — init fires once on first snapshot load, never re-initialized from server data; no snap-back
• DASH-04: Sheet panel opens on row click, lazy-loads trpc.project.getFullDetail (enabled only when selectedProjectId is set), displays stats summary and per-juror evaluation list filtered to SUBMITTED assignments for the current round
• AI-order rows display dark-blue rank badge (#N); admin-reordered rows display amber #N (override) badge
• "Run Ranking" button in header card calls triggerAutoRank, resets initialized.current to allow re-init on new snapshot
• Empty categories show a placeholder message instead of an empty drag zone
• TypeScript strict mode: 0 errors; build: PASSED

Task Commits

Task	Name	Commit	Files
1	Build full RankingDashboard component	6512e4e	src/components/admin/round/ranking-dashboard.tsx

Files Created/Modified

• src/components/admin/round/ranking-dashboard.tsx — Full component replacing stub (486 lines → includes SortableProjectRow sub-component + RankingDashboard main export)

Decisions Made

• Double cast via unknown: (json ?? []) as unknown as RankedProjectEntry[] — TypeScript strict mode rejects direct cast from Prisma JsonValue; intermediate unknown is required. Matches pattern from Phase 01-03.
• getFullDetail response shape: The procedure returns { project, assignments, stats } (not flat) — projectDetail.project.title, not projectDetail.title.
• No onSuccess invalidation in saveReorder: Calling utils.ranking.getSnapshot.invalidate() in onSuccess would trigger a re-fetch that resets localOrder to server data, causing snap-back. Mutation only shows toast on error.
• Per-category DndContext: Separate DndContext per category prevents accidental cross-category drags.

Deviations from Plan

None — plan executed exactly as written. All type errors encountered were auto-fixed inline (Rule 1 — double cast pattern, Rule 1 — response shape).

Auto-fixed Issues

1. [Rule 1 - Bug] Prisma JsonValue cast requires double cast via unknown

• Found during: Task 1 (typecheck)
• Issue: (snapshot.startupRankingJson ?? []) as RankedProjectEntry[] — TypeScript strict mode rejects because JsonValue and RankedProjectEntry[] don't sufficiently overlap
• Fix: Changed to as unknown as RankedProjectEntry[] (identical pattern used in Phase 01-03)
• Files modified: ranking-dashboard.tsx
• Commit: 6512e4e (same task commit)

2. [Rule 1 - Bug] getFullDetail response shape — title not on root

• Found during: Task 1 (typecheck)
• Issue: projectDetail?.title — getFullDetail returns { project, assignments, stats }, not a flat object
• Fix: Changed to projectDetail?.project.title
• Files modified: ranking-dashboard.tsx
• Commit: 6512e4e (same task commit)

Issues Encountered

None beyond the two auto-fixed type errors above.

User Setup Required

None.

Next Phase Readiness

• RankingDashboard fully functional — admin can view ranked projects, drag to reorder, see juror-level evaluation details in Sheet panel
• Plan 03 can now add the "Advance Projects" action button to the dashboard header
• saveReorder mutation is append-only audit log — Plan 03 can read latest reorder per category to determine final advance order
• Build and typecheck both pass with 0 errors

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Phase: 02-ranking-dashboard-ui Completed: 2026-02-27