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unraid-docker-manager/.planning/phases/03-container-actions/03-02-SUMMARY.md
T
Lucas Berger c0451f8325 docs(03-02): complete callback query handling plan
Tasks completed: 3/3
- Task 1: Configure Telegram Trigger for callback queries
- Task 2: Implement suggestion flow for no-match cases
- Task 3: Handle suggestion callback and execute action

SUMMARY: .planning/phases/03-container-actions/03-02-SUMMARY.md
2026-01-30 08:43:41 -05:00

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---
phase: 03-container-actions
plan: 02
subsystem: telegram-callbacks
tags: [callback-query, inline-keyboard, telegram-api, n8n, http-request]
# Dependency graph
requires:
- phase: 03-01
provides: Basic container actions with match routing
provides:
- Callback query handling for inline buttons
- Did-you-mean suggestion flow for typos
- 2-minute confirmation timeout
- Message cleanup after button clicks
affects: [03-update-flow, 04-logs]
# Tech tracking
tech-stack:
added: []
patterns:
- "HTTP Request node for Telegram inline keyboards (workaround for native node bug)"
- "Callback data JSON encoding with short keys for 64-byte limit"
- "Stateless confirmation via timestamp in callback_data"
- "answerCallbackQuery + deleteMessage for UI cleanup"
key-files:
created: []
modified:
- n8n-workflow.json
key-decisions:
- "Use HTTP Request for sendMessage with inline_keyboard (native Telegram node doesn't support dynamic keyboards)"
- "Encode action as single char (s/t/r/x) to fit in 64-byte callback_data limit"
- "2-minute timeout enforced client-side via timestamp comparison"
- "Delete suggestion message after any button click for clean UI"
patterns-established:
- "Callback query routing: Route Update Type -> IF Callback Authenticated -> Parse Callback Data -> Route Callback"
- "Score-based fuzzy matching for suggestions (score >= 2 required)"
- "Three-branch callback handling: cancel, expired, execute"
# Metrics
duration: 15min
completed: 2026-01-30
---
# Phase 03 Plan 02: Callback Query Handling Summary
**Inline button infrastructure with did-you-mean suggestions using HTTP Request for Telegram API and stateless callback_data encoding**
## Performance
- **Duration:** 15 min
- **Started:** 2026-01-30T13:27:00Z
- **Completed:** 2026-01-30T13:42:00Z
- **Tasks:** 3
- **Files modified:** 1
## Accomplishments
- Telegram Trigger now receives both message and callback_query updates
- Route Update Type switch separates message vs callback flows
- IF Callback Authenticated validates user before processing callbacks
- Find Closest Match scores containers and suggests best match for typos
- Build Suggestion Keyboard creates inline_keyboard JSON with short callback_data
- Send Suggestion uses HTTP Request to Telegram API (workaround for native node limitation)
- Full callback flow: Parse -> Route -> Handle (Cancel/Expired/Execute)
- Cancel: answer query "Cancelled", delete suggestion message
- Expired: answer query with alert, delete message
- Execute: run Docker action, answer query, delete message, send result
## Task Commits
Each task was committed atomically:
1. **Task 1: Configure Telegram Trigger for callback queries** - `2cbf6e7` (feat)
2. **Task 2: Implement suggestion flow for no-match cases** - `56eea26` (feat)
3. **Task 3: Handle suggestion callback and execute action** - `768d758` (feat)
## Files Created/Modified
- `n8n-workflow.json` - Extended from 27 to 41 nodes with callback infrastructure:
- Route Update Type, IF Callback Authenticated (Task 1)
- Find Closest Match, Check Suggestion, Build Suggestion Keyboard, Send Suggestion (Task 2)
- Parse Callback Data, Route Callback, Handle Cancel/Expired, Build/Execute/Parse Callback Action, Answer/Delete/Send result (Task 3)
## Decisions Made
- Use HTTP Request node for sendMessage with inline_keyboard - native Telegram node has expression bug with dynamic keyboards
- Encode action as single character (s=start, t=stop, r=restart, x=cancel) to fit callback_data 64-byte limit
- Require minimum score of 2 for suggestions - prevents suggesting unrelated containers
- 2-minute timeout enforced via timestamp in callback_data (stateless approach)
- Delete suggestion message after any button click for clean chat UI
## Deviations from Plan
None - plan executed exactly as written.
## Issues Encountered
None
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- Single-container suggestion flow complete
- Multiple-match batch confirmation still uses placeholder text (could be enhanced in future)
- Ready for Phase 04: Logs & Intelligence
- Container update flow (pull + recreate) deferred to later plan
---
*Phase: 03-container-actions*
*Completed: 2026-01-30*