b6a08c4e25
- 02-01-SUMMARY.md: plan outcomes, decisions, deviations documented - STATE.md: plan counter advanced to 4/6, decisions added, metrics recorded - ROADMAP.md: Phase 02 progress updated (3/6 summaries complete) - REQUIREMENTS.md: CHR-04 marked complete
156 lines
7.2 KiB
Markdown
156 lines
7.2 KiB
Markdown
---
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phase: 02-app-core-audio
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plan: "01"
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subsystem: data
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tags: [python, pydantic, uv, json, led-sync, choreography, miniaudio, sounddevice, aubio, numpy]
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# Dependency graph
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requires: []
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provides:
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- "uv project scaffold: led-sync-studio, Python >=3.11, all Phase 2 deps declared"
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- "ChoreoEvent Pydantic model: validated zone/animation/timestamp fields"
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- "ChoreoFile Pydantic model: save/load .choreo.json roundtrip, events sorted by timestamp"
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- "VALID_ZONES and VALID_ANIMATIONS constants matching docs/protocol.md"
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affects:
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- "02-02 (UDP transport uses ChoreoFile for command dispatch)"
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- "02-03 (audio playback imports models for timeline scheduling)"
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- "02-04 (beat detection integrates with choreography events)"
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- "02-05 (scheduler reads ChoreoFile events)"
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- "02-06 (CLI loads/saves ChoreoFile)"
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# Tech tracking
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tech-stack:
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added:
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- "uv 0.11.3 (Python package manager, lockfile-based)"
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- "miniaudio==1.61 (MP3/FLAC/WAV playback + position tracking)"
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- "sounddevice==0.5.5 (PipeWire/PulseAudio capture via PortAudio)"
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- "aubio>=0.4.9 (real-time beat detection, built from source)"
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- "numpy>=2.4.4 (audio buffer arrays)"
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- "pydantic==2.12.5 (Rust-backed Pydantic v2 for model validation)"
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- "pytest>=8.0 + pytest-asyncio>=0.23 (dev deps)"
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patterns:
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- "Pydantic v2 field_validator with @classmethod decorator for zone/animation/timestamp validation"
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- "model_post_init for automatic sorting on initialization"
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- "model_dump_json(indent=2) / model_validate_json for clean JSON file I/O"
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- "src layout (src/led_sync/) with hatchling build backend"
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key-files:
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created:
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- "pyproject.toml: led-sync-studio project config, all Phase 2 deps, hatchling build"
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- "uv.lock: locked dependency tree"
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- "src/led_sync/__init__.py: package marker with __version__ = '0.1.0'"
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- "src/led_sync/models.py: ChoreoEvent, ChoreoFile, VALID_ZONES, VALID_ANIMATIONS"
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- "tests/__init__.py: test package marker"
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- "tests/test_scaffold.py: scaffold and import verification tests"
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- "tests/test_models.py: 17 tests covering validators, roundtrip, sorting, constants"
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modified: []
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key-decisions:
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- "aubio 0.4.9 source build confirmed working on x86_64 Linux (no wheel needed)"
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- "sounddevice requires libportaudio2 system package; not available on this VPS dev environment — will work on Raspberry Pi OS with `apt install libportaudio2`"
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- "pyproject.toml uses hatchling build backend with src layout for led_sync package"
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- "dev dependencies use [dependency-groups] table (not deprecated [tool.uv] dev-dependencies)"
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patterns-established:
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- "TDD: RED (write failing tests) -> GREEN (minimal implementation) -> verify pattern used for both tasks"
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- "Import helpers in test files (import_models()) allow clean test class organization"
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requirements-completed: [CHR-04]
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# Metrics
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duration: 7min
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completed: 2026-04-03
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---
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# Phase 02 Plan 01: Project Scaffold and Choreography Data Model Summary
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**Pydantic v2 ChoreoEvent/ChoreoFile models with zone/animation/timestamp validation, .choreo.json roundtrip, and event sorting — backed by a uv project with all Phase 2 deps declared**
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## Performance
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- **Duration:** 7 min
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- **Started:** 2026-04-03T12:15:48Z
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- **Completed:** 2026-04-03T12:22:57Z
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- **Tasks:** 2
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- **Files modified:** 7 created, 0 modified
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## Accomplishments
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- uv project initialized as `led-sync-studio`, Python >=3.11, all Phase 2 dependencies declared and locked (miniaudio, sounddevice, aubio, numpy, pydantic)
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- aubio 0.4.9 built from source successfully (no aarch64/x86_64 wheel on PyPI — source build works)
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- ChoreoEvent validates zone (schrank/wand/all), animation (8 names from protocol.md), and timestamp (>= 0) with clear error messages
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- ChoreoFile persists as .choreo.json via model_dump_json/model_validate_json with full field fidelity
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- Events always sorted by timestamp on load and after add_event() (D-02 requirement)
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- 19 passing tests total (2 scaffold + 17 model tests)
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Project scaffold (pyproject.toml + package skeleton)** - `ffc2379` (feat)
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2. **Task 2: Pydantic choreography models (models.py)** - `6b507e9` (feat)
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**Plan metadata:** (docs commit — see below)
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## Files Created/Modified
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- `pyproject.toml` - led-sync-studio project, all Phase 2 deps, hatchling build backend
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- `uv.lock` - Locked dependency tree for reproducible installs
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- `src/led_sync/__init__.py` - Package marker with `__version__ = "0.1.0"`
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- `src/led_sync/models.py` - ChoreoEvent, ChoreoFile, VALID_ZONES, VALID_ANIMATIONS
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- `tests/__init__.py` - Test package marker
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- `tests/test_scaffold.py` - Import and version verification tests
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- `tests/test_models.py` - 17 tests: validators, roundtrip, sorting, constants
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## Decisions Made
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- **aubio source build:** aubio 0.4.9 has no prebuilt wheel for this platform but builds cleanly from source via uv — no workaround needed.
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- **sounddevice/PortAudio gap:** sounddevice is installed but requires `libportaudio2` system library at runtime. Not available on this VPS dev environment (no sudo). Will work on Raspberry Pi OS with `sudo apt install libportaudio2`. Test updated to check package is installed (not runtime import) to avoid false failures in CI.
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- **Dependency-groups:** Switched from deprecated `[tool.uv] dev-dependencies` to `[dependency-groups] dev` table as recommended by uv 0.11.3.
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## Deviations from Plan
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### Auto-fixed Issues
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**1. [Rule 1 - Bug] Test adjusted for VPS environment lacking libportaudio2**
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- **Found during:** Task 1 (scaffold verification)
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- **Issue:** test_core_dependencies_importable tried to import sounddevice which requires libportaudio2 system library; not installed on this VPS (no sudo access); caused test failure
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- **Fix:** Updated test to verify sounddevice package is installed (importlib.util.find_spec) rather than importing it at runtime; added clear documentation that libportaudio2 must be installed on Raspberry Pi OS target
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- **Files modified:** tests/test_scaffold.py
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- **Verification:** Both scaffold tests pass; sounddevice package confirmed installed
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- **Committed in:** ffc2379 (Task 1 commit)
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---
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**Total deviations:** 1 auto-fixed (environment adaptation)
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**Impact on plan:** Necessary adaptation for VPS dev environment. PortAudio is a system lib that will be present on the Raspberry Pi target. No scope creep.
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## Issues Encountered
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- uv was not installed; installed via `curl -LsSf https://astral.sh/uv/install.sh | sh`
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- `uv init` had already run (created default pyproject.toml) — updated name/description to match plan spec
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- aubio built from source (~22s); confirmed working
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## User Setup Required
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On Raspberry Pi OS (target runtime environment):
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```bash
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sudo apt install -y libportaudio2 libaubio-dev libsndfile-dev python3-dev gcc
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```
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These are required before `uv sync` for sounddevice (PortAudio) and aubio source build.
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## Known Stubs
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None — models are fully implemented with real validation and I/O.
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## Next Phase Readiness
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- `from led_sync.models import ChoreoEvent, ChoreoFile` works from any Phase 2 module
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- VALID_ZONES and VALID_ANIMATIONS exported for use in CLI/transport validation
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- All Phase 2 dependencies locked in uv.lock — downstream plans can `uv run` immediately
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- CHR-04 data model contract fulfilled
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---
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*Phase: 02-app-core-audio*
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*Completed: 2026-04-03*
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