"""add schedule_nodes.python_version

Revision ID: g7h8i9j0k1l2
Revises: f6a7b8c9d0e1
Create Date: 2026-08-11
"""

from collections.abc import Sequence

from alembic import op
import sqlalchemy as sa


revision: str = "g7h8i9j0k1l2"
down_revision: str | Sequence[str] | None = "f6a7b8c9d0e1"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.add_column(
        "schedule_nodes",
        sa.Column(
            "python_version",
            sa.String(length=8),
            nullable=False,
            server_default=sa.text("'3.12'"),
            comment="节点执行 Python 版本（3.8/3.10/3.12）",
        ),
    )


def downgrade() -> None:
    op.drop_column("schedule_nodes", "python_version")