mancala/TODO.md

# TODO

## Auth

### Mobile login with Keycloak (phase 5)

The web app logs in with Keycloak; the mobile app still uses the legacy `?userKey=` login.

- [ ] Add a `mancala-mobile` public client to `apps/keycloak/realm/mancala-realm.json` (PKCE S256, redirect
      `com.mancala_mobile://callback`) and to `KEYCLOAK_CLIENT_IDS` for the backend
- [ ] Add `react-native-app-auth` with the redirect scheme set up for Android and iOS
- [ ] Log in as a guest on first launch (`guest=true`), with `offline_access`; keep tokens in MMKV
- [ ] Connect with `rtmt.connectWebSocket(url, getToken)` instead of `?userKey=` (`apps/mobile/src/App.tsx`)
      and call `reauthenticate` after refreshing the token
- [ ] Log in / sign up / log out in the app, player names on the game screen (`getPlayerDisplayName` in core)
- [ ] Decide whether guests may skip the browser tab on first launch (would need a custom grant type in the
      Keycloak extension)
- [ ] Delete the unused copy of the WebSocket client in `apps/mobile/src/rtmt`
- [ ] Test on a device

### Game history on mobile

The web app has game history (see `docs/specs/game-history`); the mobile app needs Keycloak login first.

- [ ] Ongoing-game banner, live and popular games, recent games on the home screen
- [ ] Move list and looking back during a live game; replay of finished games

### After the mobile release

- [ ] Turn off `LEGACY_USERKEY_AUTH` once old app versions are no longer in use; this also removes `/register`

### Later

- [ ] Let guests turn their guest user into an account without changing identity (Keycloak required action)
- [ ] Statistics for logged in users (wins, losses), now that games are saved
- [ ] Social logins (Keycloak identity providers)
- [ ] Keycloak email theme in the game's look (password reset emails still use Keycloak's)
- [ ] Restrict the Keycloak admin console in production

## Game history

- [ ] A page with all of a user's games (the home page shows the last 3)
- [ ] Show games of deleted accounts differently, once accounts can be deleted
- [ ] Live game state, previews and spectators assume a single backend instance; share them (e.g. Valkey pub/sub)
      before running more than one
- [ ] If Valkey is unreachable when the backend starts, live games are not restored until the next restart

## Game clock

See `docs/specs/game-clock`.

- [ ] Other time controls or time added per move; a long move animates on the next player's time
- [ ] Clocks in the home page's live game previews and in the ongoing-game banner
- [ ] Try the mobile clocks on a device; only the type check and the bundle were run

## Game bot

See `docs/specs/game-bot`.

- [ ] Play against the bot without a connection (a bot in the TypeScript engine on the device)
- [ ] Keep bot games apart once there are statistics or ratings
- [ ] Hints or move analysis for players, with the same search
- [ ] Rebuild `MancalaGame` on `Position`, or use `Position` to check moves before running them (see Security)
- [ ] Tune the levels from real games (`games.bot` holds each game's level, strength and seed)
- [ ] Try the bot on a mobile device; only the type check and the bundle were run

## Tutorial

See `docs/specs/tutorial`.

- [ ] Lessons and hints in the mobile app, once it has the new design (it has the rules screen)
- [ ] Hints that look ahead, e.g. a warning when a move lets the opponent capture (the bot's search could do it)
- [ ] Strategy lessons beyond the rules
- [ ] Tutorial progress per account instead of per device
- [ ] If the end-of-game rule changes (Game rules below), update `RuleEndOfGameText2` in `en.ts` and `tr.ts`

## Web redesign

See `docs/specs/web-redesign`.

- [ ] Bring the new design to the mobile app (themes, board, game screen)

## Rematch

See `docs/specs/rematch`.

- [ ] Rematch and the series strip in the mobile app, with its new design; until then a web player's request to a
      mobile player ends after a minute
- [ ] Series of a fixed length ("best of 3") and a series winner
- [ ] Group series in the game history and on the home page (`games.series_id`)
- [ ] Take spectators along to the next game of a series
- [ ] Leaving the game page does not answer a request; the opponent waits for the minute to pass

## Deployment

- [ ] Build the backend and frontend images from the repo root in CI:
      `docker build -f apps/backend/Dockerfile .` and `docker build -f apps/frontend/Dockerfile .`
- [ ] Pass `--build-arg KEYCLOAK_URL=https://auth.playmancala.app` when building the frontend image
- [ ] Deploy Keycloak (`apps/.env` with `KEYCLOAK_DB_PASSWORD`, `KEYCLOAK_ADMIN_PASSWORD`,
      `KEYCLOAK_HOSTNAME=https://auth.playmancala.app`) and reload nginx with the new `auth.playmancala.app` block
- [ ] Deploy the backend before the web app; the new web app needs token auth on the server
- [ ] The backend is now Java (Quarkus, see `docs/specs/quarkus-backend`); the compose file passes the database as
      `DATABASE_JDBC_URL`/`DATABASE_USERNAME`/`DATABASE_PASSWORD` built from the same `MANCALA_DB_PASSWORD`, so
      `apps/.env` needs no change. It reads the Node backend's database and live games, so it can replace it (and be
      rolled back) without ending games
- [ ] Release the mobile update with the game clock before or with the backend: older app versions do not show the
      clock and do not handle `on_game_end`, so a game they lose on time does not end for them
- [ ] Back up the Postgres volume (Keycloak and saved games), e.g. a daily `pg_dumpall`
- [ ] Set `MANCALA_DB_PASSWORD` and `POSTGRES_PASSWORD` in `apps/.env` on the server; the `postgres` volume replaces
      `keycloak-db`, so Keycloak starts with a fresh database there
- [ ] Last step: publish a new `mancala.js` to npm (it is at `0.0.2-beta.3` from 2022), so the published engine skips
      the opponent's store when sowing. The apps do not need it; they use `packages/mancala.js` through `link:`

## Security

- [ ] Move the Android signing passwords out of `apps/mobile/release_android.sh` (committed in `bb1c750`) into
      `~/.gradle/gradle.properties` or environment variables, and consider resetting the upload key
- [ ] Add `apps/mobile/mancala-upload-key.jks` to `.gitignore` (only `android/app/mancala-upload-key.jks` is ignored)
- [ ] Validate moves before running them instead of treating every invalid move as a crash: each one writes a
      file to `crashes/` and is broadcast to the players (`GameManager.onGameError`, kept as it was in the Node
      backend)

## Game rules

- [ ] Decide who gets the remaining stones when a move empties the opponent's side (e.g. a capture takes their last
      stones). Now the player whose side is empty always gets the other side's stones (`GRClearBoardAtEnd`), even
      when the opponent emptied it; some Mangala rules give them only to a player who emptied their own side.
      Analyse the rule first, then decide

## Bugs

- [ ] `PitAnimator.dispose` removes a newly bound function, so the theme listener is never removed
- [ ] `onGameError` broadcasts `{}` instead of the error (the Java backend sends `{}` on purpose, as the Node backend
      did)

## Maintenance

- [ ] The web and mobile apps duplicate components and stores; move shared code into `packages/core`
- [ ] Mixed lockfiles: `packages/*` and `apps/mobile` have both `yarn.lock` and `package-lock.json`
- [ ] Align TypeScript and Jest versions across packages
- [ ] Tests for `MatchMaker`; `PitAnimator` is only tested for the first frame of a move
- [ ] CI that runs the tests (the backend's need a JDK 25 and Docker)
- [ ] The rules exist twice, in `packages/mancala.js` and in the backend's Java port; a parity test keeps them alike,
      but every rule change has to be made in both
- [ ] Pre-existing type errors: 1 in the frontend (`react-dom/client`), 11 in mobile; the frontend has no
      `tsconfig.json`, so nothing type-checks it