"""How a host's downtime reads on its page (#5756)."""
from datetime import datetime, timedelta, timezone
from types import SimpleNamespace

from plugins.host_agent.downtime import describe, restart_grace_seconds

NOW = datetime(2026, 10, 14, 12, 0, tzinfo=timezone.utc)


def _row(kind, minutes_ago, lasted=None):
    start = NOW - timedelta(minutes=minutes_ago)
    return SimpleNamespace(kind=kind, started_at=start,
                           ended_at=start + timedelta(minutes=lasted) if lasted is not None else None)


def test_each_kind_reads_as_what_it_was():
    assert describe(_row("reboot", 30, 2), NOW)["label"] == "Rebooted"
    assert describe(_row("unclean", 30, 9), NOW)["label"] == "Restarted without shutting down"
    assert describe(_row("lost_contact", 30, 20), NOW)["label"] == "Lost contact"
    assert describe(_row("agent_stop", 30, 1), NOW)["label"] == "Agent restarted"
    assert describe(_row("agent_stop", 3), NOW)["label"] == "Agent stopped"


def test_one_still_going_counts_to_now():
    got = describe(_row("reboot", 4), NOW)
    assert got["ongoing"] and got["seconds"] == 240.0
    done = describe(_row("reboot", 30, 2), NOW)
    assert not done["ongoing"] and done["seconds"] == 120.0


def test_the_grace_comes_from_the_plugin_settings():
    assert restart_grace_seconds({}) == 600
    assert restart_grace_seconds({"PLUGINS": {"host_agent": {"reboot_grace_seconds": 120}}}) == 120