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

from app.api.v1.router import api_router
from app.core.config import get_settings
from app.db.session import Base, SessionLocal, engine
from app.seed.demo import seed_demo_data


def create_app() -> FastAPI:
    settings = get_settings()
    app = FastAPI(
        title=settings.project_name,
        description="SDN-like network and security control plane for Proxmox VE.",
        version="0.1.0",
        docs_url="/api/docs",
        openapi_url="/api/openapi.json",
    )
    app.add_middleware(
        CORSMiddleware,
        allow_origins=[str(origin) for origin in settings.cors_origins],
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )

    @app.on_event("startup")
    def startup() -> None:
        Base.metadata.create_all(bind=engine)
        with SessionLocal() as db:
            seed_demo_data(db)

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

    app.include_router(api_router, prefix="/api/v1")
    return app


app = create_app()