"""Функции для работы с шаблонами."""
from __future__ import annotations
from typing import Optional

from sqlalchemy import select
from app.db.session import async_session_maker
from app.models.templates import Template


async def list_templates(owner_id: Optional[int] = None):
    """Получение списка шаблонов."""
    async with async_session_maker() as session:
        stmt = select(Template)
        if owner_id:
            stmt = stmt.filter(Template.owner_id == owner_id)
        result = await session.execute(stmt)
        return result.scalars().all()

async def create_template(template_data: dict):
    """Создание нового шаблона."""
    async with async_session_maker() as session:
        template = Template(**template_data)
        session.add(template)
        await session.commit()