---
phase: 17-telegram-scheduler
plan: 04
subsystem: telegram
tags: [telego, telegram, notifications, subscribers, scheduler]

requires:
  - phase: 17-01
    provides: Bot struct, Config, command dispatch, Start/Stop lifecycle
  - phase: 17-02
    provides: subscribers table CRUD (AddSubscriber, RemoveSubscriber, ListSubscribers, IsSubscribed), scheduler JobResult

provides:
  - /subscribe and /unsubscribe command handlers
  - NotifyNewFindings dispatcher (scheduler to bot bridge)
  - NotifyFinding real-time individual finding notification
  - formatNotification/formatErrorNotification/formatFindingNotification helpers

affects: [17-05, serve-command, scheduled-scanning]

tech-stack:
  added: []
  patterns: [separate-format-from-send for testable notification logic, per-subscriber error resilience]

key-files:
  created:
    - pkg/bot/subscribe.go
    - pkg/bot/notify.go
    - pkg/bot/subscribe_test.go
  modified:
    - pkg/bot/bot.go

key-decisions:
  - "Separated formatting from sending for testability without mocking telego"
  - "Nil bot field used as test-mode indicator to skip actual SendMessage calls"
  - "Zero-finding results produce no notification (silent success)"

patterns-established:
  - "Format+Send separation: formatNotification returns string, NotifyNewFindings iterates subscribers"
  - "Per-subscriber resilience: log error and continue to next subscriber on send failure"

requirements-completed: [TELE-05, TELE-07, SCHED-03]

duration: 3min
completed: 2026-04-06
---

# Phase 17 Plan 04: Subscribe/Unsubscribe + Notification Dispatcher Summary

**/subscribe and /unsubscribe handlers with NotifyNewFindings dispatcher bridging scheduler job completions to Telegram messages for all subscribers**

## Performance

- **Duration:** 3 min
- **Started:** 2026-04-06T14:30:33Z
- **Completed:** 2026-04-06T14:33:36Z
- **Tasks:** 2
- **Files modified:** 4

## Accomplishments
- /subscribe checks IsSubscribed before adding, /unsubscribe reports rows affected
- NotifyNewFindings sends formatted message to all subscribers when scheduled scans find keys
- NotifyFinding provides real-time per-finding notification with always-masked keys
- 6 tests covering subscribe DB round-trip, no-subscriber no-op, zero-finding skip, message format validation

## Task Commits

Each task was committed atomically:

1. **Task 1: Implement /subscribe, /unsubscribe handlers** - `d671695` (feat)
2. **Task 2: Notification dispatcher and tests (RED)** - `f7162aa` (test)
3. **Task 2: Notification dispatcher and tests (GREEN)** - `2643927` (feat)

## Files Created/Modified
- `pkg/bot/subscribe.go` - /subscribe and /unsubscribe command handlers using storage layer
- `pkg/bot/notify.go` - NotifyNewFindings, NotifyFinding dispatchers with format helpers
- `pkg/bot/subscribe_test.go` - 6 tests for subscribe/unsubscribe and notification formatting
- `pkg/bot/bot.go` - Removed stub implementations replaced by subscribe.go

## Decisions Made
- Separated formatting from sending: formatNotification/formatErrorNotification/formatFindingNotification return strings, tested independently without telego mock
- Nil telego.Bot field used as test-mode indicator to skip actual SendMessage calls while still exercising all logic paths
- Zero-finding scan completions produce no notification (avoids subscriber fatigue)
- Error results get a separate error notification format

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
- go.sum had merge conflict markers from worktree merge; resolved by removing conflict markers and running go mod tidy

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness
- Notification pipeline complete: scheduler OnComplete -> NotifyNewFindings -> all subscribers
- Ready for Plan 17-05 (serve command integration wiring bot + scheduler together)

---
*Phase: 17-telegram-scheduler*
*Completed: 2026-04-06*
