"""decouple schedule artifact visibility from version history

Revision ID: 20260728_0003
Revises: 20260728_0002
Create Date: 2026-07-28
"""

from collections.abc import Sequence

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import mysql


revision: str = "20260728_0003"
down_revision: str | Sequence[str] | None = "20260728_0002"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.add_column(
        "versions",
        sa.Column(
            "schedule_hidden_at",
            mysql.DATETIME(fsp=3),
            nullable=True,
            comment="从调度稳定版本列表移除的时间；不影响版本和运行历史",
        ),
    )
    op.create_index(
        "idx_versions_schedule_visible",
        "versions",
        ["workspace_id", "schedule_hidden_at", "created_at"],
        unique=False,
    )


def downgrade() -> None:
    op.drop_index("idx_versions_schedule_visible", table_name="versions")
    op.drop_column("versions", "schedule_hidden_at")