"""Maintenance windows for alert suppression

Revision ID: 0010_maintenance_windows
Revises: 0009_widget_variants
Create Date: 2026-03-22
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa

revision: str = "0010_maintenance_windows"
down_revision: Union[str, None] = "0009_widget_variants"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "maintenance_windows",
        sa.Column("id", sa.String(36), primary_key=True),
        sa.Column("name", sa.String(128), nullable=False),
        sa.Column("start_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("end_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("scope_source", sa.String(64), nullable=True),
        sa.Column("scope_resource", sa.String(255), nullable=True),
        sa.Column("created_by", sa.String(36), sa.ForeignKey("users.id", ondelete="RESTRICT"), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
    )


def downgrade() -> None:
    op.drop_table("maintenance_windows")