"""add keycloak_sub, make hashed_password nullable

Revision ID: 0002
Revises: 0001
Create Date: 2026-03-01
"""
from alembic import op
import sqlalchemy as sa

revision = "0002"
down_revision = "0001"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.add_column("users", sa.Column("keycloak_sub", sa.String(255), nullable=True))
    op.create_unique_constraint("uq_users_keycloak_sub", "users", ["keycloak_sub"])
    op.alter_column("users", "hashed_password", nullable=True)


def downgrade() -> None:
    op.alter_column("users", "hashed_password", nullable=False)
    op.drop_constraint("uq_users_keycloak_sub", "users", type_="unique")
    op.drop_column("users", "keycloak_sub")