from __future__ import annotations

import json
from pathlib import Path
import types

from ariadne.services.metis import MetisService


def test_watch_sentinel_reads_snapshot_dir(monkeypatch, tmp_path) -> None:
    monkeypatch.setattr(
        "ariadne.services.metis.settings",
        types.SimpleNamespace(
            metis_sentinel_dir=str(tmp_path),
            metis_sentinel_stale_after_sec=3600.0,
        ),
    )

    Path(tmp_path, "node-a.json").write_text(
        json.dumps(
            {
                "hostname": "titan-13",
                "kernel": "6.6.63",
                "containerd": "1.7.23",
            }
        ),
        encoding="utf-8",
    )
    Path(tmp_path, "node-b.json").write_text(
        json.dumps(
            {
                "hostname": "titan-19",
                "kernel": "6.6.63",
                "containerd": "1.7.23",
            }
        ),
        encoding="utf-8",
    )

    summary = MetisService().watch_sentinel()

    assert summary.status == "ok"
    assert summary.snapshots == 2
    assert summary.hosts == 2
    assert summary.hostnames == ["titan-13", "titan-19"]
    assert summary.source == str(tmp_path)


def test_watch_sentinel_skips_when_unconfigured(monkeypatch) -> None:
    monkeypatch.setattr(
        "ariadne.services.metis.settings",
        types.SimpleNamespace(
            metis_sentinel_dir="",
            metis_sentinel_stale_after_sec=3600.0,
        ),
    )

    summary = MetisService().watch_sentinel()

    assert summary.status == "skipped"
    assert summary.snapshots == 0
    assert summary.hosts == 0