from contextlib import asynccontextmanager
from pathlib import Path

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from app.api.routes import router
from app.core.config import get_settings
from app.core.database import Base, engine
import app.models  # noqa: F401 — register models


@asynccontextmanager
async def lifespan(_: FastAPI):
    settings = get_settings()
    Path(settings.data_dir).mkdir(parents=True, exist_ok=True)
    Base.metadata.create_all(bind=engine)
    yield


app = FastAPI(title="GostGenerator Web API", version="1.0.0", lifespan=lifespan)
settings = get_settings()
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.cors_origin_list,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
app.include_router(router)


@app.get("/")
def root():
    return {"service": "GostGenerator Web API", "docs": "/docs"}