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scrabble-game/ui
Ilia Denisov e07886ecb1
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test(ui): update the native offline-first e2e for the Erudit-only guest default
The offline native guest is now offered only Erudit (the profileless default
from the variants fix), so the specs that picked the English "Scrabble"
variant timed out. Play Erudit instead: the single `.variant` click both
selects it and asserts nothing else is offered; the vs_ai test plays НОЖ from
the pinned Erudit rack (ОЖЬЯНАО), and the bundled ru_erudit dawg drives the
robot reply.
2026-07-14 22:13:42 +02:00
..
2026-07-14 09:06:03 +02:00
2026-07-14 09:06:03 +02:00
2026-06-03 00:55:38 +02:00

scrabble-ui

Pure-HTML5 game client — plain Svelte 5 (runes) + TypeScript + Vite, no SvelteKit. Talks to the gateway over Connect-RPC + FlatBuffers; embeddable in platform webviews and packageable to native via Capacitor.

The playable slice: sign in (guest / email), the "my games" lobby, auto-match, the board (place tiles by drag or tap, pass, exchange, resign), hint, word-check + complaint, per-game chat and nudge, the live in-app stream, i18n (en/ru), theme, and the profile. Social surfaces add friends/blocks (with one-time friend codes), friend-game invitations, profile editing + email binding, the statistics screen, the lobby notification badge, and the in-game history + GCG export (share or download, finished games only).

Scripts

pnpm install
pnpm start        # mock mode (VITE_MOCK): lobby -> game with no backend, :5173
pnpm dev          # against a running gateway (Vite proxies /scrabble.edge.v1.Gateway -> :8081)
pnpm check        # svelte-check / tsc
pnpm test:unit    # Vitest (pure logic + FlatBuffers codec)
pnpm test:e2e     # Playwright smoke against the mock
pnpm build        # static bundle into dist/ (prod app ~97 KB gzip JS; per-chunk budget: scripts/bundle-size.mjs)
pnpm codegen      # regenerate src/gen from edge.proto + scrabble.fbs (dev-time)

GATEWAY_URL overrides the dev proxy target; VITE_GATEWAY_URL sets the runtime gateway origin for a packaged (non-proxied) build. VITE_TELEGRAM_BOT_ID enables the "Link Telegram" web sign-in (the Login Widget) — inert until the site domain is registered with BotFather (/setdomain); VITE_TELEGRAM_LINK is the friend-invite Mini App link for the single bot (full URL https://telegram.me/<bot>/<app>). VITE_TELEGRAM_GAME_CHANNEL_NAME is the "Play in Telegram" link shown on the landing page. The native (Capacitor) build additionally reads VITE_DICT_VERSION (the bundled-dictionary version the offline path requests, matching the packaged DAWGs), VITE_PAYMENTS_DISABLED=1 (hide in-app purchases in the RuStore MVP), VITE_RUSTORE_URL (the update overlay's store target; empty until published) and VITE_APP_VERSION (git describe --tags → the X-Client-Version gate header) — all wired by .gitea/workflows/android-build.yaml.

The build has two entries: the game SPA (index.html, served at /app/ and /telegram/) and a lightweight landing page (landing.html, served at /).

How it talks to the gateway

A single Connect Execute(message_type, payload) carries every unary op; the request and response bodies are FlatBuffers tables (pkg/fbs/scrabble.fbs) in payload. The session token rides in Authorization: Bearer; a domain failure comes back in result_code. Subscribe is the live event stream; its game events carry a state delta that lib/gamedelta.ts applies to the per-game cache (lib/gamecache.ts), so a move renders without a follow-up game.state (a gap falls back to a refetch). lib/transport.ts is the real client; lib/mock/ is an in-memory fake selected by MODE === 'mock' (and tree-shaken out of production). Both speak the plain lib/model.ts types via lib/codec.ts.

No board on the wire: StateView is a summary + rack only, so the client reconstructs the 15×15 board by replaying the decoded move journal (game.history). The play loop is alphabet-agnostic: the rack and the play / exchange / word-check requests carry alphabet indices, and the client caches each variant's (index, letter, value) table — sent once behind StateRequest.include_alphabet — in lib/alphabet.ts, rendering the rack and blank chooser from it. Premium squares (lib/premiums.ts) stay a client-side geometry map ported from scrabble-solver/rules/rules.go (pinned by a Vitest parity test); tile values and the alphabet now come from the server table (their parity lives in the Go engine.AlphabetTable test). Board, tiles and effects are pure CSS + Unicode — no image/font/SVG assets.

Codegen

src/gen/ is committed; CI builds it, it is not regenerated there (the same model as the Go committed jet/fbs output). pnpm codegen runs flatc --ts on ../pkg/fbs/scrabble.fbs and buf generate (protoc-gen-es) on the edge proto. Needs flatc 23.5.26 and buf on PATH.

Theming

Design tokens are CSS custom properties (src/app.css); light/dark follows prefers-color-scheme or an explicit choice in Settings. The token system is Telegram-themeParams-ready (lib/theme.ts) — a Mini App can override the tokens at runtime; the Telegram SDK itself is wired in the Telegram stage.

Layout

src/
  lib/         model, client facade, transport (+ mock), codec, board replay,
               placement state machine, premiums (geometry), alphabet cache, stats, share,
               i18n, theme, session, router, app store
  components/  Header, Menu (+ badge), Modal, Toast, TabBar, Screen
  screens/     Login, Lobby, NewGame, Profile, Settings, About, Friends, Stats
  game/        Game, Board, Rack, Controls, MakeMove, Chat
  gen/         committed edge codegen (FlatBuffers + Connect)
e2e/           Playwright smoke + social specs (mock)