Files
scrabble-game/gateway/internal/transcode/transcode_link.go
T
Ilia Denisov 57c778f9b2
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feat(telegram,game): single bot + per-user variant preferences
Collapse the two per-language Telegram bots into one unified bot and
replace language-based variant gating with explicit per-user variant
preferences.

- Telegram: one bot; drop service_language and the supported_languages
  set everywhere (DB, account, auth, FlatBuffers Session wire, gateway,
  connector proto). The single bot renders chat and out-of-app push in
  the recipient's preferred_language; remove the game-language push
  routing override (notify Intent.Language / push Event.language).
- Preferences: new accounts.variant_preferences (text[], DB default
  {erudit_ru}, CHECK non-empty + subset of the three variants). Gates
  the New Game picker, vs-AI and the friend invitation the player
  creates, enforced server-side (HTTP 400 otherwise); an invited friend
  may still accept any variant. Edited on the Settings screen; variants
  are Erudit-first everywhere.
- Admin: drop the per-bot language selectors (broadcast / send-to-user)
  and the feedback channel_lang column/field.
- Env/CI: collapse TELEGRAM_BOT_TOKEN_{EN,RU}, TELEGRAM_GAME_CHANNEL_ID_{EN,RU},
  VITE_TELEGRAM_LINK{,_EN,_RU} and VITE_TELEGRAM_GAME_CHANNEL_NAME_{EN,RU}
  to single unsuffixed names; drop GATEWAY_DEFAULT_SUPPORTED_LANGUAGES.
- Docs updated (ARCHITECTURE, FUNCTIONAL + _ru, platform/telegram, gateway,
  backend, ui, UI_DESIGN, PRERELEASE).

The migration squash is deferred to a follow-up PR.
2026-06-20 14:23:25 +02:00

88 lines
3.2 KiB
Go

package transcode
import (
"context"
"scrabble/gateway/internal/backendclient"
fb "scrabble/pkg/fbs/scrabblefb"
)
// Account linking & merge message types. The email ops carry the costly-
// email rate flag; the telegram ops validate Login Widget data through the
// connector (registered only when the connector is configured). All are
// authenticated. The merge ops are the explicit irreversible step, gated in the UI
// after a merge_required confirm.
const (
MsgLinkEmailRequest = "link.email.request"
MsgLinkEmailConfirm = "link.email.confirm"
MsgLinkEmailMerge = "link.email.merge"
MsgLinkTelegram = "link.telegram.confirm"
MsgLinkTelegramMerge = "link.telegram.merge"
)
// registerLinkOps adds the linking & merge operations. The telegram ops need the
// connector's Login Widget validator, so they are registered only when tg is set.
func registerLinkOps(r *Registry, backend *backendclient.Client, tg TelegramValidator) {
r.ops[MsgLinkEmailRequest] = Op{Handler: linkEmailRequestHandler(backend), Auth: true, Email: true}
r.ops[MsgLinkEmailConfirm] = Op{Handler: linkEmailConfirmHandler(backend), Auth: true, Email: true}
r.ops[MsgLinkEmailMerge] = Op{Handler: linkEmailMergeHandler(backend), Auth: true, Email: true}
if tg != nil {
r.ops[MsgLinkTelegram] = Op{Handler: linkTelegramHandler(backend, tg, false), Auth: true}
r.ops[MsgLinkTelegramMerge] = Op{Handler: linkTelegramHandler(backend, tg, true), Auth: true}
}
}
func linkEmailRequestHandler(backend *backendclient.Client) Handler {
return func(ctx context.Context, req Request) ([]byte, error) {
in := fb.GetRootAsLinkEmailRequest(req.Payload, 0)
if err := backend.LinkEmailRequest(ctx, req.UserID, string(in.Email())); err != nil {
return nil, err
}
return encodeAck(true), nil
}
}
func linkEmailConfirmHandler(backend *backendclient.Client) Handler {
return func(ctx context.Context, req Request) ([]byte, error) {
in := fb.GetRootAsLinkEmailConfirm(req.Payload, 0)
res, err := backend.LinkEmailConfirm(ctx, req.UserID, string(in.Email()), string(in.Code()))
if err != nil {
return nil, err
}
return encodeLinkResult(res), nil
}
}
func linkEmailMergeHandler(backend *backendclient.Client) Handler {
return func(ctx context.Context, req Request) ([]byte, error) {
in := fb.GetRootAsLinkEmailConfirm(req.Payload, 0)
res, err := backend.LinkEmailMerge(ctx, req.UserID, string(in.Email()), string(in.Code()))
if err != nil {
return nil, err
}
return encodeLinkResult(res), nil
}
}
// linkTelegramHandler validates Login Widget data via the connector and then calls
// the backend's link or merge endpoint with the trusted Telegram external id.
func linkTelegramHandler(backend *backendclient.Client, tg TelegramValidator, merge bool) Handler {
return func(ctx context.Context, req Request) ([]byte, error) {
in := fb.GetRootAsLinkTelegramRequest(req.Payload, 0)
user, err := tg.ValidateLoginWidget(ctx, string(in.Data()))
if err != nil {
return nil, err
}
var res backendclient.LinkResultResp
if merge {
res, err = backend.LinkTelegramMerge(ctx, req.UserID, user.ExternalID)
} else {
res, err = backend.LinkTelegram(ctx, req.UserID, user.ExternalID)
}
if err != nil {
return nil, err
}
return encodeLinkResult(res), nil
}
}