Extract the leaderboard into a generic, backend-agnostic package and add
rolling Today/Week/Month/All-Time windows, a web component, and local-first
development against the Firestore emulator.
Package (leaderboard/):
- LeaderBoardService: backend-agnostic core via a storage-adapter seam, with
Firebase and Supabase adapters (Supabase client injected, no added dep)
- Rolling time windows (last 24h / 7d / 30d) with hover tooltips; top-N by score
- <cozy-leaderboard> web component built on web-component-base: compose the UI
in HTML, configure the backend once in JS
- Every user-facing string is configurable (labels, tooltips, empty/loading/
error messages, anonymous name) so i18n lives in the app; README + CONFIGURATION
App (mnswpr.com):
- Compose the board declaratively in index.html via <cozy-leaderboard>
- Nickname + randomized greeting bar; score submission through the element
- Legends: the current all-time leaders frozen into a static /legends page
- Firebase config and leaderboard namespace via Vite env vars; emulator-first
local dev (VITE_FIRESTORE_EMULATOR)
Firebase schema-as-code:
- firebase.json, .firebaserc, firestore.rules (public reads, create-only scores,
no client updates/deletes, namespace-generalized), empty indexes (rolling
windows need none)
- prod (mw-*) vs dev/test (mw-test-*) separation by collection namespace
- emulator config, seed script, and docs (firebase-leaderboards.md,
leaderboard-env-migration.md, AYO.md)
Utils/tests: UTC date-bucket helper (retained as metadata) with Vitest coverage.
