from contextlib import asynccontextmanager

from fastapi import FastAPI

from app.api.v1.entities import router as entities_router
from app.core.exception_handlers import register_exception_handlers
from app.ha.client import HaClient, HaClientSettings
from app.ha.reader import HaReader
from app.rules.recommender import Recommender
from app.rules.heating import HeatingRule


@asynccontextmanager
async def lifespan(app: FastAPI):
    settings = app.state.settings
    ha_url = getattr(settings, "ha_url", None)
    ha_token = getattr(settings, "ha_token", None)
    client = HaClient(
        settings=HaClientSettings(
            url=ha_url or "",
            token=ha_token or "",
        )
    )
    app.state.ha_reader = HaReader(client=client)
    app.state.recommender = Recommender(rules=[HeatingRule()])
    yield


class Settings:
    ha_url: str = "http://localhost:8123"
    ha_token: str = ""


app = FastAPI(
    title="SillyHome Next API",
    description="Lokales Smart-Home-Intelligenzsystem für Home Assistant.",
    version="0.1.0",
    lifespan=lifespan,
)
app.state.settings = Settings()
register_exception_handlers(app)
app.include_router(entities_router)


@app.get("/health")
def health() -> dict[str, str]:
    return {"status": "ok"}


@app.get("/")
def root() -> dict[str, str]:
    return {"service": "sillyhome-next", "docs": "/docs"}