"""Declarative base for all ORM models.

Naming convention is set explicitly so Alembic generates stable, reviewable
constraint names across migrations and Postgres versions.
"""

from __future__ import annotations

from sqlalchemy import MetaData
from sqlalchemy.orm import DeclarativeBase

# https://alembic.sqlalchemy.org/en/latest/naming.html#integration-of-naming-conventions-into-operations-autogenerate
NAMING_CONVENTION = {
    "ix": "ix_%(table_name)s_%(column_0_N_name)s",
    "uq": "uq_%(table_name)s_%(column_0_N_name)s",
    "ck": "ck_%(table_name)s_%(constraint_name)s",
    "fk": "fk_%(table_name)s_%(column_0_N_name)s_%(referred_table_name)s",
    "pk": "pk_%(table_name)s",
}


class Base(DeclarativeBase):
    metadata = MetaData(naming_convention=NAMING_CONVENTION)