"""Audit entries name the thing they are about, linked to its page, and keep
the recorded name of something deleted since (#5126)."""
from datetime import datetime, timezone
from types import SimpleNamespace as NS

from quart import render_template

from steward.audit.service import entity_labels


class _Empty:
    """A session whose every query finds nothing: every entity was deleted."""
    async def execute(self, _stmt):
        return NS(all=lambda: [], scalars=lambda: NS(all=lambda: []))


def _ev(etype, eid, action="x.y"):
    return NS(entity_type=etype, entity_id=eid, action=action, username="admin",
              timestamp=datetime(2026, 10, 6, 12, 0, tzinfo=timezone.utc))


async def test_a_deleted_entity_keeps_the_name_its_entry_recorded():
    items = [{"event": _ev("host", "h-123456789"), "detail": {"name": "web-1"}},
             {"event": _ev("monitor", "m-abcdef012"), "detail": {}},
             {"event": _ev("plugin", "docker"), "detail": {}},
             {"event": _ev(None, None), "detail": {}}]
    labels = await entity_labels(_Empty(), items)
    assert labels[("host", "h-123456789")] == {"label": "web-1", "url": None, "gone": True}
    assert labels[("monitor", "m-abcdef012")] == {"label": "m-abcdef", "url": None, "gone": True}
    assert labels[("plugin", "docker")] == {"label": "docker", "url": "/settings/plugins/", "gone": False}
    assert len(labels) == 3


async def test_the_page_names_and_links_the_entity(app):
    events = [
        {"event": _ev("host", "h1", "host.renamed"), "detail": {"old": "a", "new": "b"},
         "entity": {"label": "web-1", "url": "/hosts/h1", "gone": False}},
        {"event": _ev("monitor", "m9", "monitor.deleted"), "detail": {},
         "entity": {"label": "api check", "url": None, "gone": True}},
    ]
    async with app.test_request_context("/audit/"):
        page = await render_template("audit/list.html", events=events, limit=200, action_filter="")
    assert '<a href="/hosts/h1">web-1</a>' in page
    assert "api check" in page and "(deleted)" in page
    assert "h1</td>" not in page  # no bare id where a name is known