"""WS Gateway — stateless WebSocket proxy.

Accepts Electron device connections, authenticates JWT (RS256 public key),
and routes frames between Electron and downstream services via Redis pub/sub.

This service has NO business logic — it only routes JSON frames.
"""

from contextlib import asynccontextmanager
import logging

from fastapi import FastAPI
from shared.config import settings

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s %(levelname)s %(name)s: %(message)s",
)


@asynccontextmanager
async def lifespan(app: FastAPI):
    yield
    from shared.redis import redis_client

    await redis_client.aclose()


def create_app() -> FastAPI:
    app = FastAPI(
        title="Adiuva WS Gateway",
        version="0.1.0",
        docs_url="/docs" if settings.ENV == "dev" else None,
        redoc_url=None,
        lifespan=lifespan,
    )

    from app.handler import router

    app.include_router(router, prefix="/api/v1")

    @app.get("/api/v1/health", tags=["health"])
    async def health() -> dict:
        return {"status": "ok", "service": "ws-gateway", "version": app.version}

    return app


app = create_app()