de455400d2
- Create lightsync/api/audio.py with POST /load and GET /state endpoints - Validate file existence and extension (.mp3/.wav/.flac/.ogg) - Use asyncio.to_thread for engine.load to avoid blocking event loop - Return 404/400/503 on error conditions - Register audio router at /api/audio prefix in main.py - AUD-02 (YouTube) noted as Phase 6 deferral
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
import asyncio
|
|
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
|
|
from lightsync.audio.engine import MPVEngine
|
|
|
|
# Module-level containers populated in lifespan
|
|
registry: DeviceRegistry | None = None
|
|
show_store: ShowStore | None = None
|
|
engine: MPVEngine | None = None
|
|
|
|
|
|
@asynccontextmanager
|
|
async def lifespan(app: FastAPI):
|
|
global registry, show_store, engine
|
|
# Startup
|
|
registry = DeviceRegistry(Path("devices.json"))
|
|
await registry.load()
|
|
show_store = ShowStore(Path("shows"))
|
|
show_store.ensure_dir()
|
|
ao = os.environ.get("MPV_AO", "null")
|
|
engine = MPVEngine(ao=ao)
|
|
engine.start()
|
|
app.state.engine = engine
|
|
from lightsync.api.ws import broadcast_loop
|
|
task = asyncio.create_task(broadcast_loop(lambda: engine))
|
|
yield
|
|
# Shutdown
|
|
task.cancel()
|
|
try:
|
|
await task
|
|
except asyncio.CancelledError:
|
|
pass
|
|
engine.stop()
|
|
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")
|
|
|
|
# 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()
|