"""The Syslog page (#5999): whether the listener is open or why not, the
sources kept, and the senders offered to an admin to add or ignore."""
from datetime import datetime, timedelta, timezone
from types import SimpleNamespace as NS

from tests._templates import render_plugin_template
from tests.test_style_tokens import hex_colours


def _listener(**over):
    base = {"port": 5514, "protocols": ["UDP", "TCP"], "listening": True, "error": None,
            "bound_at": datetime.now(timezone.utc) - timedelta(hours=2), "received": 1204,
            "dropped": 0, "unoffered": 0, "connections": 1, "senders_full": False, "max_senders": 200}
    return {**base, **over}


def _source(name, state, level=6, line="nfsd: server not responding", host=None):
    now = datetime.now(timezone.utc)
    return {"id": f"id-{name}", "address": "192.168.0.7", "state": state, "name": name,
            "hostname_seen": "synnas", "host": host, "first_seen_at": now - timedelta(days=1),
            "last_seen_at": now - timedelta(minutes=3), "lines_total": 1204,
            "severity": "err" if level == 3 else "info", "level": level, "last_line": line,
            "suggested_host": "h1"}


async def _render(app, role, **ctx):
    from quart import session
    ctx = {"listener": _listener(), "sources": [], "offered": [], "ignored": [],
           "hosts": [NS(id="h1", name="SynNAS", address="192.168.0.7")],
           "now": datetime.now(timezone.utc), **ctx}
    async with app.test_request_context("/plugins/syslog/"):
        session["user_role"] = role
        page = await render_plugin_template(app, "syslog", "syslog/index.html", **ctx)
    return " ".join(page.split())


async def test_an_offered_sender_can_be_added_or_ignored_by_an_admin(app):
    page = await _render(app, "admin", offered=[_source("synnas", "offered", level=3)])
    assert "Sending, not added" in page and "calls itself synnas" in page
    assert 'action="/plugins/syslog/sources/id-synnas/add"' in page
    assert 'action="/plugins/syslog/sources/id-synnas/ignore"' in page
    assert '<option value="h1" selected>SynNAS</option>' in page          # the host at its address
    assert 'class="tone-crit">err</span> nfsd: server not responding' in page
    assert "UDP and TCP port 5514" in page and "1,204 lines received" in page
    main = page[page.index("<main"):]
    assert "font-weight:600" not in main and not hex_colours(main), hex_colours(main)


async def test_a_viewer_sees_sources_but_no_controls(app):
    page = await _render(app, "viewer", sources=[_source("SynNAS", "accepted", host=NS(id="h1", name="SynNAS"))],
                         offered=[_source("router", "offered")])
    assert 'href="/hosts/h1"' in page and "/plugins/syslog/sources/" not in page
    assert "Sending, not added" in page


async def test_a_port_it_cannot_open_is_said(app):
    page = await _render(app, "admin", listener=_listener(
        listening=False, error="Port 514 couldn't be opened (UDP: Permission denied)."))
    assert "Not listening" in page and "Port 514 couldn't be opened" in page
    assert "below 1024" in page
    assert "No sources yet." in page


async def test_the_edit_page_has_its_trail_and_a_remove(app):
    from quart import session
    source = NS(id="s1", name="SynNAS", hostname_seen="synnas", address="192.168.0.7", host_id=None)
    async with app.test_request_context("/plugins/syslog/sources/s1/edit"):
        session["user_role"] = "admin"
        page = await render_plugin_template(app, "syslog", "syslog/edit.html", source=source,
                                            hosts=[], label="SynNAS")
    page = " ".join(page.split())
    assert 'href="/plugins/syslog/">Syslog</a>' in page
    assert 'action="/plugins/syslog/sources/s1/delete"' in page and "data-confirm=" in page