from alembic import op
import sqlalchemy as sa

revision = "20260419_client_portal_user_link"
down_revision = "20260416_release_b6_cleanup"
branch_labels = None
depends_on = None


def upgrade():
    with op.batch_alter_table("clients") as batch_op:
        batch_op.add_column(sa.Column("portal_user_id", sa.Integer(), nullable=True))
        batch_op.create_index("ix_clients_portal_user_id", ["portal_user_id"], unique=False)
        batch_op.create_foreign_key("fk_clients_portal_user_id_users", "users", ["portal_user_id"], ["id"])


def downgrade():
    with op.batch_alter_table("clients") as batch_op:
        batch_op.drop_constraint("fk_clients_portal_user_id_users", type_="foreignkey")
        batch_op.drop_index("ix_clients_portal_user_id")
        batch_op.drop_column("portal_user_id")