"""The Status page says what is wrong, and since when, before anything else
(#5120)."""
from datetime import datetime, timedelta, timezone
from types import SimpleNamespace

import pytest
from quart import render_template

from steward.core.status import StatusEntry, streak_start
from tests.test_style_tokens import hex_colours

T0 = datetime(2026, 10, 6, 18, 0, tzinfo=timezone.utc)


def _checks(*ups):
    return [SimpleNamespace(is_up=up, checked_at=T0 + timedelta(minutes=i)) for i, up in enumerate(ups)]


@pytest.mark.parametrize("ups, since, at_least", [
    ((), None, False),
    ((True,), 0, True),
    ((False, False, False), 0, True),         # down for every check we have
    ((True, True, False, False), 2, False),   # went down at the third check
    ((False, True, True, False), 3, False),
])
def test_streak_start(ups, since, at_least):
    checks = _checks(*ups)
    assert streak_start(checks) == ((checks[since].checked_at if since is not None else None), at_least)


async def _rows(app, entries, alerts):
    async with app.test_request_context("/status/rows"):
        return await render_template(
            "status/rows.html", entries=entries, alerts=alerts,
            problems=[e for e in entries if e.status == "down"],
            up=sum(e.status == "up" for e in entries), down=sum(e.status == "down" for e in entries), pending=0)


async def test_the_problems_come_first_and_say_since_when(app):
    now = datetime.now(timezone.utc)
    entries = [
        StatusEntry(kind="http", key="1", name="shop-api", target="https://shop/x", status="down",
                    since=now - timedelta(minutes=12), uptime={"24h": 93.0}, tls_days=2.0),
        StatusEntry(kind="icmp", key="2", name="nas", target="10.0.0.5", status="up",
                    since=now - timedelta(days=3), since_at_least=True, uptime={"24h": 100.0}),
    ]
    state = SimpleNamespace(state=SimpleNamespace(value="firing"), no_data_since=None,
                            last_transition_at=now - timedelta(minutes=4))
    rule = SimpleNamespace(id="r1", name="CPU high", resource_name="web01", metric_name="cpu_pct",
                           operator=SimpleNamespace(value=">"), threshold=90)
    page = await _rows(app, entries, [(state, rule)])

    attention = page.index("Needs attention")
    assert attention < page.index("Recent checks")              # before the full list
    problem_card = page[attention:page.index("</section>")]
    assert "shop-api" in problem_card and "nas" not in problem_card
    assert "down since <time" in problem_card and ">12m ago</time>" in problem_card
    assert "CPU high" in problem_card and "cpu_pct &gt; 90" in problem_card and ">4m ago</time>" in problem_card
    assert '<span class="badge badge-crit">Firing</span>' in problem_card
    # Uptime and TLS coloured by Settings → Thresholds, not by literals.
    assert '<span class="tone-crit">93.00%</span>' in page and '<span class="tone-ok">100.00%</span>' in page
    assert 'class="tone-crit" title="TLS certificate expires in 2 days">2d' in page
    assert not hex_colours(page), hex_colours(page)


async def test_a_quiet_board_has_no_problem_card(app):
    entries = [StatusEntry(kind="icmp", key="2", name="nas", target="10.0.0.5", status="up")]
    page = await _rows(app, entries, [])
    assert "Needs attention" not in page and "nas" in page
    assert "No monitors yet" in await _rows(app, [], [])