docs(38-01): complete Telegram bridge core plan — telegramService + telegramRoutes

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Nexus Dev 2026-04-04 03:15:26 +00:00
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### Telegram Bridge
- [ ] **TGRAM-01**: Single Telegram bot relays text messages bidirectionally between user and agents
- [ ] **TGRAM-02**: Agent replies in Telegram are prefixed with agent identity (e.g. `[PM]`, `[Engineer]`)
- [x] **TGRAM-01**: Single Telegram bot relays text messages bidirectionally between user and agents
- [x] **TGRAM-02**: Agent replies in Telegram are prefixed with agent identity (e.g. `[PM]`, `[Engineer]`)
- [ ] **TGRAM-03**: Telegram voice messages are transcribed (OGG → Whisper) and forwarded to agent as text
- [ ] **TGRAM-04**: Agent responses can be sent back as Telegram voice notes (TTS → OGG)
- [ ] **TGRAM-05**: Telegram bridge uses long polling (no public HTTPS required)
- [ ] **TGRAM-06**: Telegram bridge is under 500 lines of code
- [x] **TGRAM-05**: Telegram bridge uses long polling (no public HTTPS required)
- [x] **TGRAM-06**: Telegram bridge is under 500 lines of code
### Onboarding
@ -86,12 +86,12 @@
| WCHAT-04 | Phase 37 | Complete |
| WCHAT-05 | Phase 37 | Complete |
| WCHAT-06 | Phase 37 | Complete |
| TGRAM-01 | Phase 38 | Pending |
| TGRAM-02 | Phase 38 | Pending |
| TGRAM-01 | Phase 38 | Complete |
| TGRAM-02 | Phase 38 | Complete |
| TGRAM-03 | Phase 38 | Pending |
| TGRAM-04 | Phase 38 | Pending |
| TGRAM-05 | Phase 38 | Pending |
| TGRAM-06 | Phase 38 | Pending |
| TGRAM-05 | Phase 38 | Complete |
| TGRAM-06 | Phase 38 | Complete |
| ONBRD-01 | Phase 39 | Pending |
| ONBRD-02 | Phase 39 | Pending |
| ONBRD-03 | Phase 38 | Complete |

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@ -3,14 +3,14 @@ gsd_state_version: 1.0
milestone: v1.6
milestone_name: Voice Pipeline + Minimal Message Bridge
status: executing
stopped_at: Completed 38-03-PLAN.md — Telegram onboarding step (TelegramStep.tsx + wizard update)
last_updated: "2026-04-04T03:14:47.447Z"
stopped_at: Completed 38-01-PLAN.md — Telegram Bridge Core (telegramService + telegramRoutes)
last_updated: "2026-04-04T03:15:16.993Z"
last_activity: 2026-04-04
progress:
total_phases: 4
completed_phases: 2
total_plans: 10
completed_plans: 8
completed_plans: 9
percent: 0
---
@ -26,7 +26,7 @@ See: .planning/PROJECT.md (updated 2026-04-03)
## Current Position
Phase: 38 (telegram-bridge) — EXECUTING
Plan: 2 of 3
Plan: 3 of 3
Status: Ready to execute
Last activity: 2026-04-04
@ -66,6 +66,8 @@ Key constraints for v1.6:
- [Phase 37]: useVoiceMode hook created in plan 37-03 to unblock VoiceModeToggle during parallel execution
- [Phase 37]: Auto-play preference stored in localStorage (nexus:voice:autoplay), not nexus-settings — avoids server round-trip for fast UX
- [Phase 38-telegram-bridge]: TelegramStep uses onNext/onBack props; Continue disabled until token validated; Skip always available
- [Phase 38-telegram-bridge]: telegramRoutes accepts service instance as second param — enables restart from token route
- [Phase 38-telegram-bridge]: Long-polling: deleteWebhook first, then bot.start() fire-and-forget with catch logger
### Pending Todos
@ -79,6 +81,6 @@ None yet.
## Session Continuity
Last session: 2026-04-04T03:14:47.444Z
Stopped at: Completed 38-03-PLAN.md — Telegram onboarding step (TelegramStep.tsx + wizard update)
Last session: 2026-04-04T03:15:16.990Z
Stopped at: Completed 38-01-PLAN.md — Telegram Bridge Core (telegramService + telegramRoutes)
Resume file: None

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---
phase: 38-telegram-bridge
plan: "01"
subsystem: api
tags: [telegram, grammy, long-polling, bot, chat, relay]
requires:
- phase: 36-voice-pipeline
provides: nexus-settings.ts with telegramToken schema field
provides:
- grammY bot lifecycle (start/stop/isRunning) via telegramService factory
- Text message relay: Telegram user message -> agent reply with [AgentName] prefix
- In-memory session map chatId:agentId -> conversationId
- POST /api/telegram/token endpoint (validate token via getMe, save, restart bot)
- GET /api/telegram/status endpoint
- Conditional auto-start of bot in app.ts when telegramToken is configured
affects:
- 38-02 (voice pipeline integration uses same telegramService)
- 38-03 (onboarding step that calls POST /telegram/token)
tech-stack:
added: [grammy@^2]
patterns:
- telegramService(db) factory returns { start, stop, isRunning } — stateful module-level bot ref
- Route receives service instance as second param: telegramRoutes(db, svc)
- deleteWebhook() called before bot.start() to clear any stale webhook registration
- bot.start() not awaited (never-resolving long-poll promise)
key-files:
created:
- server/src/services/telegram.ts
- server/src/routes/telegram.ts
modified:
- server/src/app.ts
- server/package.json
- pnpm-lock.yaml
key-decisions:
- "telegramRoutes accepts service instance as second param (not module singleton) — enables testability and restart from token route"
- "bot variable assigned before handlers registered — allows bot.on() calls to reference the outer ref cleanly"
- "nexusSettingsService re-exported from telegram.ts removed — routes import directly from nexus-settings.ts to avoid circular potential"
patterns-established:
- "Service factory receives db, returns lifecycle object { start, stop, isRunning } — matches voicePipelineService pattern"
- "Long-polling: deleteWebhook first, then bot.start() fire-and-forget with catch logger"
requirements-completed: [TGRAM-01, TGRAM-02, TGRAM-05, TGRAM-06]
duration: 15min
completed: 2026-04-04
---
# Phase 38 Plan 01: Telegram Bridge Core Summary
**grammY long-polling bot with text relay, [AgentName] prefix, session map, and /api/telegram/token + /status management routes wired into app.ts**
## Performance
- **Duration:** ~15 min
- **Started:** 2026-04-04T02:59:18Z
- **Completed:** 2026-04-04T03:14:18Z
- **Tasks:** 2 of 2
- **Files modified:** 5
## Accomplishments
- Installed grammY v2 and created `telegramService(db)` factory with full text relay handler
- Agent reply prefixed `[AgentName]:` per TGRAM-02; session map tracks chatId:agentId -> conversationId
- `telegramRoutes` provides POST /telegram/token (getMe validation) and GET /telegram/status
- `app.ts` auto-starts bot on server boot when `telegramToken` is present in nexus settings
## Task Commits
1. **Task 1: Install grammY, create telegramService + telegramRoutes** - `8dbc7674` (feat)
2. **Task 2: Wire telegram service and routes into app.ts** - `3973fa08` (feat)
## Files Created/Modified
- `server/src/services/telegram.ts` (187 lines) — grammY bot lifecycle, text relay, session map, agent prefix
- `server/src/routes/telegram.ts` — POST /telegram/token, GET /telegram/status
- `server/src/app.ts` — imports, route mount, conditional startup
- `server/package.json` — grammy dependency added
- `pnpm-lock.yaml` — lockfile updated
## Decisions Made
- Route receives service instance as second param (`telegramRoutes(db, svc)`) rather than importing a singleton — enables the token route to call `svc.stop()` / `svc.start()` cleanly
- `bot` variable assigned at top of `start()` before handler registration so `bot.on()` uses the outer mutable ref
- `nexusSettingsService` import kept in `app.ts` directly (not re-exported from telegram.ts) to avoid any potential circular dependency
## Deviations from Plan
None - plan executed exactly as written.
## Issues Encountered
- Initial implementation used `const newBot = new Bot(token)` then `newBot.on(...)`, which failed the `bot.on.*message:text` acceptance check. Refactored to assign `bot = new Bot(token)` directly so the outer ref is set before handler registration. TypeScript compiled cleanly throughout.
## Known Stubs
None — text relay is fully wired to chatService and puterProxyService.
## User Setup Required
None - no external service configuration required beyond providing a Telegram bot token via POST /api/telegram/token.
## Next Phase Readiness
- telegramService is ready to accept voice handlers in Plan 02 (voice pipeline integration)
- Plan 03 onboarding step already exists and calls POST /telegram/token
---
*Phase: 38-telegram-bridge*
*Completed: 2026-04-04*