Files
led2/lightsync/main.py
Claude 6366d8468f feat(02-03): remove MPVEngine from main.py, add beats cache and shows static route
- Remove MPVEngine import, engine module-level var, and lifespan start/stop logic
- Remove broadcast_loop task (no server-side position polling)
- Add app.state.beats = {} dict (filepath -> beat data cache) in lifespan startup
- Mount /shows as StaticFiles so browser <audio src=/shows/file.mp3> works
- Simplified lifespan: registry + show_store + beats init only
2026-04-06 15:37:06 +00:00

65 lines
2.0 KiB
Python

import os
from contextlib import asynccontextmanager
from pathlib import Path
from fastapi import FastAPI, Request
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles
from lightsync.devices.registry import DeviceRegistry
from lightsync.store.show_store import ShowStore
# Module-level containers populated in lifespan
registry: DeviceRegistry | None = None
show_store: ShowStore | None = None
@asynccontextmanager
async def lifespan(app: FastAPI):
global registry, show_store
# Startup
registry = DeviceRegistry(Path("devices.json"))
await registry.load()
show_store = ShowStore(Path("shows"))
show_store.ensure_dir()
# Beat analysis cache: filepath -> {"tempo": float, "beats": [float, ...]}
app.state.beats = {}
yield
# Shutdown
await registry.save()
def create_app() -> FastAPI:
app = FastAPI(title="LightSync", lifespan=lifespan, redirect_slashes=False)
# API routes (registered before static mount — see Pattern 7)
from lightsync.api import shows, devices, ws, audio
app.include_router(shows.router, prefix="/api/shows")
app.include_router(devices.router, prefix="/api/devices")
app.include_router(ws.router)
app.include_router(audio.router, prefix="/api/audio")
# Serve uploaded audio files so <audio src=...> can load them
shows_dir = Path("/app/shows")
shows_dir.mkdir(parents=True, exist_ok=True)
app.mount("/shows", StaticFiles(directory=str(shows_dir)), name="shows")
# Static file serving — no-cache headers to prevent stale JS/CSS
frontend_dir = Path(__file__).parent / "frontend"
@app.get("/{filename:path}")
async def static_files(request: Request, filename: str):
path = frontend_dir / (filename or "index.html")
if not path.exists() or not path.is_file():
path = frontend_dir / "index.html"
response = FileResponse(path)
response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
return response
return app
app = create_app()