from contextlib import asynccontextmanager

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

from app.middleware.auth import AuthMiddleware
from app.routers import auth, devices, objects, tags


@asynccontextmanager
async def lifespan(app: FastAPI):
    # Startup: future workers (monitor, stale task recovery) will be launched here in Этап 2+
    yield
    # Shutdown


def create_app() -> FastAPI:
    app = FastAPI(
        title="Fleet Manager",
        description="Centralized device fleet management service",
        version="0.1.0",
        docs_url="/docs",
        redoc_url="/redoc",
        lifespan=lifespan,
    )

    app.add_middleware(
        CORSMiddleware,
        allow_origins=["*"],
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )
    app.add_middleware(AuthMiddleware)

    app.include_router(auth.router)
    app.include_router(objects.router)
    app.include_router(devices.router)
    app.include_router(tags.router)

    return app


app = create_app()