"""add phone to sites

Revision ID: 20260512_01
Revises: 20260511_02
Create Date: 2026-05-12 09:30:00.000000

"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "20260512_01"
down_revision: Union[str, None] = "20260511_02"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    columns = {col["name"] for col in inspector.get_columns("sites")}

    if "phone" not in columns:
        op.add_column("sites", sa.Column("phone", sa.String(length=100), nullable=True))


def downgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    columns = {col["name"] for col in inspector.get_columns("sites")}

    if "phone" in columns:
        op.drop_column("sites", "phone")