Ilia Denisov
82648a4398
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The in-game hint badge ignored the payments hint wallet: loading a game clobbered app.profile.hintBalance with the deprecated StateView.wallet_balance (zeroed in the D31 domain removal but left in the protocol as a dead 0, then synced over the real balance at game load). Finish the removal honestly. StateView carries the per-game allowance alone (hints_remaining); the purchasable wallet lives solely on the profile and the client adds it (lib/hints). Removed StateView.wallet_balance across every layer — backend StateView/DTO, notify.PlayerState (live events), gateway StateResp + wire.StateView, the client model/codec/mock/localgame — and dropped the now-unused wallet arg from hintsRemaining. The FBS field is tombstoned `(deprecated)` (not deleted) so the vtable slots after it stay stable across a rolling deploy; no accessor is generated. HintResult keeps wallet_balance (the real post-spend payments balance the client adopts into the profile). The StateView type no longer has walletBalance, so the clobber cannot return without a compile error. Tests: hintsRemaining (2-arg); hints.hintsLeft (allowance + live wallet, no strip); the game state/hint integration (allowance-only HintsRemaining); gateway transcode; FBS regen.
pkg
Shared wire contracts for the Scrabble platform (module scrabble/pkg),
imported by both backend and gateway. It carries no logic — only the
generated message types and the schemas they come from.
Layout
proto/push/v1/ # backend -> gateway live-event gRPC channel (Push.Subscribe)
# committed generated Go (*.pb.go, *_grpc.pb.go)
fbs/scrabble.fbs # FlatBuffers edge payloads (one `scrabblefb` namespace)
fbs/scrabblefb/ # committed generated Go for the schema
proto/push/v1is the single gRPC server-stream the backend exposes and the gateway subscribes to (Event{user_id, kind, payload, event_id}); thepayloadis an opaque FlatBuffers body the gateway forwards verbatim.proto/telegram/v1is the Telegram connector's RPC contract (includingValidateLoginWidgetfor the web Login Widget sign-in).fbsholds the client↔gateway request/response and event payloads as FlatBuffers tables. The backend encodes the push payloads from these types; the gateway transcodes the rest to and from the backend's JSON; the UI generates TypeScript from the same.fbs.
Generated code
Committed (CI only builds it); regenerate dev-time after editing the schemas:
make -C pkg tools # go install protoc-gen-go + protoc-gen-go-grpc
make -C pkg gen # buf generate (proto) + flatc (fbs)
flatc is pinned to 23.5.26 to match the github.com/google/flatbuffers
Go runtime in go.mod; generating with another version is refused.
Workspace wiring
scrabble/pkg is a bare-path module (no dot), so — like scrabble-solver — it
cannot be fetched as a versioned dependency. go.work carries use ./pkg and
replace scrabble/pkg v0.0.0 => ./pkg; consumers require scrabble/pkg v0.0.0.