"""Uptime / SLA folds into Monitors (#5250)

Revision ID: 0033_retire_uptime_widget
Revises: 0032_retire_duplicate_widgets
Create Date: 2026-10-07

The Monitors widget now shows each monitor's uptime over 24h, 7d and 30d, so
the separate Uptime / SLA widget (uptime_summary) repeated it. A dashboard
that already shows Monitors loses the Uptime placement; any other keeps the
cell, now showing Monitors. The same steps as 0032.
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa

revision: str = "0033_retire_uptime_widget"
down_revision: Union[str, None] = "0032_retire_duplicate_widgets"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None

_OLD, _NEW = "uptime_summary", "monitors"


def upgrade() -> None:
    op.execute(sa.text("""
        DELETE FROM dashboard_widgets d
        WHERE d.widget_key = :old
          AND EXISTS (SELECT 1 FROM dashboard_widgets k
                      WHERE k.dashboard_id = d.dashboard_id AND k.widget_key = :new)
    """).bindparams(old=_OLD, new=_NEW))
    op.execute(sa.text("""
        DELETE FROM dashboard_widgets d
        WHERE d.widget_key = :old
          AND EXISTS (SELECT 1 FROM dashboard_widgets k
                      WHERE k.dashboard_id = d.dashboard_id AND k.widget_key = :old
                        AND k.id < d.id)
    """).bindparams(old=_OLD))
    op.execute(sa.text("""
        UPDATE dashboard_widgets SET widget_key = :new, config_json = NULL
        WHERE widget_key = :old
    """).bindparams(old=_OLD, new=_NEW))


def downgrade() -> None:
    # One-way, as 0032: the retired widget no longer exists to render.
    pass