---
phase: 02-app-core-audio
plan: "06"
subsystem: cli
tags: [asyncio, repl, led-sync, miniaudio, aubio, sounddevice, udp, choreography]

# Dependency graph
requires:
  - phase: 02-app-core-audio
    provides: "AudioPlayer, BeatDetector, ChoreographyScheduler, ESP32Transport, ChoreoFile/ChoreoEvent models"

provides:
  - "src/led_sync/main.py — asyncio entry point + CLI REPL wiring all Phase 2 modules (D-13/D-14)"
  - "src/led_sync/__main__.py — python -m led_sync invocation support"
  - "led-sync script entry point in pyproject.toml"
affects:
  - "03-textual-tui — TUI phase will import AppState, handle_command, and module instances from main.py"

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "AppState container pattern for TUI-friendly module composition"
    - "asyncio REPL with run_in_executor for non-blocking stdin reads"
    - "Unified play/pause/resume/seek/stop dispatching to both AudioPlayer and ChoreographyScheduler"

key-files:
  created:
    - src/led_sync/main.py
    - src/led_sync/__main__.py
  modified:
    - pyproject.toml

key-decisions:
  - "AppState class holds all module instances — designed for Phase 3 TUI integration (reuse same objects)"
  - "run_in_executor(None, input, ...) pattern for non-blocking REPL input in asyncio loop"
  - "BeatDetector instance created lazily on 'beat on' command to avoid audio device allocation at startup"

patterns-established:
  - "handle_command(line, state) -> bool: single async dispatcher, returns False only on quit"
  - "async_main() creates transport + scheduler, runs repl(), cleans up in finally block"

requirements-completed: [AUD-01, AUD-02, AUD-03, AUD-04, CHR-04, CHR-05]

# Metrics
duration: 5min
completed: 2026-04-03
---

# Phase 02 Plan 06: Main Entry Point Summary

**asyncio REPL entry point wiring AudioPlayer + ChoreographyScheduler + BeatDetector + ESP32Transport into `python -m led_sync <ip>` CLI**

## Performance

- **Duration:** ~5 min
- **Started:** 2026-04-03T12:53:35Z
- **Completed:** 2026-04-03T12:58:00Z
- **Tasks:** 1 of 2 (Task 2 is hardware checkpoint — awaiting user verification)
- **Files modified:** 3

## Accomplishments

- Created `src/led_sync/main.py` with AppState, full D-13 REPL command set, asyncio REPL loop
- Created `src/led_sync/__main__.py` enabling `python -m led_sync` invocation
- Added `led-sync` script entry point to pyproject.toml
- `uv run python -m led_sync --help` verified working; AST validation confirmed all module imports

## Task Commits

1. **Task 1: Main entry point and asyncio REPL** - `e544d57` (feat)

**Checkpoint reached:** Task 2 (hardware acceptance test) requires user verification on Raspberry Pi + ESP32.

## Files Created/Modified

- `/home/claude/keineahnungirgendeintesthalt/src/led_sync/main.py` — Full CLI entry point: AppState, handle_command dispatcher, repl(), async_main(), main()
- `/home/claude/keineahnungirgendeintesthalt/src/led_sync/__main__.py` — Module invocation entry (delegates to main.py:main)
- `/home/claude/keineahnungirgendeintesthalt/pyproject.toml` — Added [project.scripts] led-sync entry point

## Decisions Made

- AppState class holds all module instances — structured for Phase 3 Textual TUI to import and reuse these same objects without refactoring
- BeatDetector created lazily on `beat on` command — avoids claiming audio device at startup
- `run_in_executor(None, input, "> ")` pattern for non-blocking stdin in asyncio — standard pattern for asyncio REPLs per plan research

## Deviations from Plan

None — plan executed exactly as written.

## Issues Encountered

None.

## User Setup Required

None — no external service configuration required. Hardware verification in Task 2 is a checkpoint for the user to perform on-device.

## Next Phase Readiness

- Phase 2 headless CLI is complete pending hardware acceptance in Task 2
- Phase 3 Textual TUI can import `AppState`, `handle_command`, and module instances from `main.py` directly
- All module APIs are asyncio-compatible: AudioPlayer (thread), BeatDetector (call_soon_threadsafe bridge), ChoreographyScheduler (asyncio Task), ESP32Transport (DatagramProtocol)

---
*Phase: 02-app-core-audio*
*Completed: 2026-04-03*