import logging
from contextlib import asynccontextmanager

from fastapi import FastAPI

from .schema import PredictRequest, PredictResponse
from .service import service

logging.basicConfig(level=logging.INFO)


@asynccontextmanager
async def lifespan(app: FastAPI):
    logging.info("Iniciando la aplicación")
    service.load()
    yield
    logging.info("Finalizando la aplicación")


app = FastAPI(title="MLOps Demo API", lifespan=lifespan)


@app.get("/")
def read_root():
    return {"message": "Bienvenido a la API de MLOps Demo"}


@app.post("/predict", response_model=PredictResponse)
def predict(req: PredictRequest):
    cost = service.predict(req.distance_km)
    return PredictResponse(cost_soles=cost)