---
phase: 03-container-actions
plan: 03
subsystem: telegram-batch-actions
tags: [batch-confirmation, inline-keyboard, sequential-execution, callback-query]

# Dependency graph
requires:
  - phase: 03-02
    provides: Callback query handling infrastructure
provides:
  - Batch confirmation flow for multiple container matches
  - Sequential batch execution with result aggregation
  - UI cleanup after batch actions
affects: [04-logs]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "Batch callback_data with array of container short IDs"
    - "Sequential shell command execution with result markers"
    - "Aggregated success/failure reporting"

key-files:
  created: []
  modified:
    - n8n-workflow.json

key-decisions:
  - "Limit batch to 4 containers due to 64-byte callback_data constraint"
  - "Use RESULT_N:statusCode markers for parsing sequential execution output"
  - "Delete confirmation message after action for clean chat UI"

patterns-established:
  - "Batch flow: Build Keyboard -> Send Confirm -> Callback -> Build Commands -> Execute -> Parse -> Format -> Answer -> Delete -> Send Result"
  - "Single shell command with && chained curls and echo markers"

# Metrics
duration: 3min
completed: 2026-01-30
---

# Phase 03 Plan 03: Batch Confirmation Flow Summary

**Inline batch confirmation with sequential execution for multiple container matches using callback_data array encoding and aggregated result reporting**

## Performance

- **Duration:** 3 min
- **Started:** 2026-01-30T13:45:19Z
- **Completed:** 2026-01-30T13:48:07Z
- **Tasks:** 3
- **Files modified:** 1

## Accomplishments
- Replaced placeholder "Format Multiple Matches" with full batch confirmation flow
- Build Batch Keyboard creates inline_keyboard with "Yes, stop N containers" and "Cancel" buttons
- Batch callback_data encodes action code + array of container short IDs + timestamp
- Parse Callback Data detects batch (c is array) vs single suggestion (c is string)
- Route Callback now has 4 outputs: cancel, expired, batch, single (fallback)
- Build Batch Commands prepares curl commands for each container
- Prepare Batch Execution chains commands with RESULT_N: markers for parsing
- Execute Batch Action runs all container actions in single shell command
- Parse Batch Result extracts status codes and counts successes/failures
- Format Batch Result builds human-friendly message with counts
- Answer Batch Query removes button loading state
- Delete Batch Confirm Message removes confirmation for clean chat
- Send Batch Result displays final aggregated result

## Task Commits

Each task was committed atomically:

1. **Task 1: Build batch confirmation message with inline keyboard** - `ab8d528` (feat)
2. **Task 2: Handle batch confirmation callback** - `25a7994` (feat)
3. **Task 3: Clean up UI after batch action** - `6737ef0` (feat)

## Files Created/Modified
- `n8n-workflow.json` - Extended from 41 to 49 nodes with batch confirmation flow:
  - Build Batch Keyboard, Send Batch Confirmation (Task 1)
  - Build Batch Commands, Prepare Batch Execution, Execute Batch Action, Parse Batch Result, Format Batch Result (Task 2)
  - Answer Batch Query, Delete Batch Confirm Message, Send Batch Result (Task 3)

## Decisions Made
- Limit callback_data to 4 containers max (64-byte Telegram limit)
- Use single shell command with && chained curls instead of n8n loops (simpler, no external modules needed)
- RESULT_N:statusCode format for parsing multiple results from single execution
- Reuse same UI cleanup pattern as single suggestion flow (answer -> delete -> send)

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- All container action flows complete: single match, no match (suggestion), multiple match (batch)
- Callback handling supports both single and batch operations
- Ready for Phase 04: Logs & Intelligence
- Container update flow (pull + recreate) remains deferred

---
*Phase: 03-container-actions*
*Completed: 2026-01-30*