from datetime import datetime

from sqlalchemy import TIMESTAMP, func
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker
from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column

from src.core.settings import settings

engine = create_async_engine(settings.db.url, echo=True)

async_session_maker = async_sessionmaker(bind=engine, expire_on_commit=False)


class Base(DeclarativeBase):
    created_at: Mapped[datetime] = mapped_column(
        TIMESTAMP(timezone=True), server_default=func.now()
    )