# FastAPI-приложение и его жизненный цикл.

from contextlib import asynccontextmanager

from fastapi import FastAPI

from ..core.config import Settings
from ..storage.db import PersistenceService
from .routes import cars, health, tasks


@asynccontextmanager
async def lifespan(app: FastAPI):
    # Таблицы создаются миграциями Alembic.
    yield


def create_app(settings: Settings | None = None) -> FastAPI:
    _settings = settings or Settings()

    app = FastAPI(
        title="mobile.de Scraper API",
        description="REST API для управления задачами скрапинга mobile.de и просмотра данных",
        version="1.0.0",
        lifespan=lifespan,
    )

    app.state.settings = _settings
    app.state.persistence = PersistenceService(_settings)

    app.include_router(health.router, tags=["health"])
    app.include_router(cars.router, prefix="/api/v1", tags=["cars"])
    app.include_router(tasks.router, prefix="/api/v1", tags=["tasks"])

    return app


# Точка входа для uvicorn.
app = create_app()