import logging
from contextlib import asynccontextmanager

from fastapi import FastAPI

from app.db import check_db

logger = logging.getLogger("pops")


@asynccontextmanager
async def lifespan(app: FastAPI):
    if check_db():
        logger.info("Database connection OK")
    else:
        logger.warning("Database unreachable — check MYSQL_* environment variables")
    yield


app = FastAPI(title="POPS", lifespan=lifespan)


@app.get("/")
def root():
    return {"message": "Hello from POPS"}


@app.get("/health")
def health():
    db_ok = check_db()
    return {
        "status": "ok" if db_ok else "degraded",
        "db": "connected" if db_ok else "unreachable",
    }