from __future__ import annotations

from fastapi import FastAPI

from app.infrastructure.db.sqlalchemy.models import Base
from app.infrastructure.db.sqlalchemy.session import get_engine
from app.presentation.api.v1.health import router as health_router
from app.presentation.api.v1.users import router as users_router


def create_app() -> FastAPI:
    app = FastAPI(title="DDD Onion FastAPI Demo", version="1.0.0")

    app.include_router(health_router)
    app.include_router(users_router)

    @app.on_event("startup")
    async def on_startup() -> None:
        # демо-миграция: создать таблицы при старте
        # в проде делай Alembic, но файл models.py уже готов.
        engine = get_engine()
        async with engine.begin() as conn:
            await conn.run_sync(Base.metadata.create_all)

    return app


app = create_app()