"""Users: telegram_user_id nullable (for import by full_name)

Revision ID: 002
Revises: 001
Create Date: 2025-02-17

"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa

revision: str = "002"
down_revision: Union[str, None] = "001"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    with op.batch_alter_table("users", schema=None) as batch_op:
        batch_op.alter_column(
            "telegram_user_id",
            existing_type=sa.BigInteger(),
            nullable=True,
        )


def downgrade() -> None:
    with op.batch_alter_table("users", schema=None) as batch_op:
        batch_op.alter_column(
            "telegram_user_id",
            existing_type=sa.BigInteger(),
            nullable=False,
        )