"""Declarative base for SQLAlchemy models."""
from __future__ import annotations

from enum import StrEnum
from typing import TypeVar

from sqlalchemy.orm import DeclarativeBase, declared_attr

EnumT = TypeVar("EnumT", bound=StrEnum)


class Base(DeclarativeBase):
    """Base class that configures naming conventions."""

    @declared_attr.directive
    def __tablename__(cls) -> str:  # type: ignore[misc]
        return cls.__name__.lower()


def enum_values(enum_cls: type[EnumT]) -> list[str]:
    """Return enum member values to keep DB representation stable."""

    return [member.value for member in enum_cls]