"""Safety tests for the legacy Atlas availability cleanup."""

import importlib.util
from pathlib import Path


def load_module():
    """Load the service-owned cleanup module without packaging it."""
    path = (
        Path(__file__).resolve().parents[2]
        / "services/monitoring/scripts/availability_cleanup.py"
    )
    spec = importlib.util.spec_from_file_location("availability_cleanup", path)
    module = importlib.util.module_from_spec(spec)
    assert spec.loader is not None
    spec.loader.exec_module(module)
    return module


def test_cleanup_selector_cannot_match_request_v4() -> None:
    """Constrain deletion to obsolete annual Atlas definitions."""
    mod = load_module()

    assert '__name__="atlas:availability:ratio_365d"' in mod.LEGACY_SELECTOR
    assert 'scope="atlas"' in mod.LEGACY_SELECTOR
    assert 'definition!="request-v4"' in mod.LEGACY_SELECTOR
    assert 'definition="request-v4"' in mod.PROTECTED_SELECTOR
    assert "ratio_1h" not in mod.LEGACY_SELECTOR