import re
from typing import Any

from sqlalchemy.ext.declarative import declared_attr
from sqlalchemy.orm import as_declarative


@as_declarative()
class Base:
    id: Any
    __name__: str

    # Generate __tablename__ automatically based on class name
    @declared_attr
    def __tablename__(self) -> str:
        # Convert CamelCase to snake_case
        name = re.sub(r"(?<!^)(?=[A-Z])", "_", self.__name__).lower()
        return name