"""add subject baseline date

Revision ID: 20260508_03
Revises: 20260508_02
Create Date: 2026-05-08 16:35:00.000000

"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "20260508_03"
down_revision: Union[str, None] = "20260508_02"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column("subjects", sa.Column("baseline_date", sa.Date(), nullable=True))


def downgrade() -> None:
    op.drop_column("subjects", "baseline_date")