"""Tests for the crawlable SEO content pages: the city set, robots/sitemap, and
that the server-rendered pages contain the stats in the HTML (with the weather
layer faked, like test_api.py)."""
import pytest
from fastapi.testclient import TestClient

import app as appmod
import cities
import climate

# BASE defaults to /thermograph in tests (THERMOGRAPH_BASE unset).
B = "/thermograph"
SLUG = "london-england-gb"   # present in cities.json


@pytest.fixture
def client(monkeypatch, history, recent):
    monkeypatch.setattr(climate, "load_cached_history", lambda cell: history.clone())
    monkeypatch.setattr(climate, "get_recent_forecast", lambda cell: recent.clone())
    monkeypatch.setattr(climate, "get_history", lambda cell: (history.clone(), {"cached": True}))
    return TestClient(appmod.app)


def test_city_set_slugs_unique_and_lookup():
    slugs = cities.all_slugs()
    assert len(slugs) == len(set(slugs)) >= 100
    assert cities.get(SLUG) is not None
    assert cities.get("does-not-exist") is None


def test_robots_txt(client):
    r = client.get(f"{B}/robots.txt")
    assert r.status_code == 200
    assert "Sitemap:" in r.text and "/sitemap.xml" in r.text
    assert "Disallow: /thermograph/api/" in r.text


def test_sitemap_lists_city_urls(client):
    r = client.get(f"{B}/sitemap.xml")
    assert r.status_code == 200
    assert "<urlset" in r.text
    assert f"/climate/{SLUG}</loc>" in r.text
    assert f"/climate/{SLUG}/july</loc>" in r.text
    assert f"/climate/{SLUG}/records</loc>" in r.text


def test_city_page_renders_stats_in_html(client):
    r = client.get(f"{B}/climate/{SLUG}")
    assert r.status_code == 200
    b = r.text
    assert "London" in b and "climate" in b.lower()
    assert 'rel="canonical"' in b and f"/climate/{SLUG}" in b
    assert '"@type":"Dataset"' in b
    assert "average temperatures by month" in b.lower()
    # a real number rendered (°F appears in the normals/today text)
    assert "°F" in b


def test_city_404(client):
    assert client.get(f"{B}/climate/nope-not-a-city").status_code == 404


def test_city_travel_cta_prefills_compare(client):
    b = client.get(f"{B}/climate/{SLUG}").text
    assert "Thinking of visiting" in b
    assert "/compare#loc=" in b            # the city is pre-loaded on the compare page


def test_city_blurb_renders_with_attribution(client, monkeypatch):
    monkeypatch.setattr(cities, "flavor",
                        lambda slug: {"extract": "Testville is a lovely place to test.",
                                      "url": "https://en.wikipedia.org/wiki/Testville", "title": "Testville"})
    b = client.get(f"{B}/climate/{SLUG}").text
    assert "Testville is a lovely place to test." in b
    assert "via Wikipedia" in b            # CC BY-SA attribution link


def test_month_and_records(client):
    assert client.get(f"{B}/climate/{SLUG}/july").status_code == 200
    assert client.get(f"{B}/climate/{SLUG}/records").status_code == 200
    assert client.get(f"{B}/climate/{SLUG}/notamonth").status_code == 404


def test_hub_glossary_about(client):
    assert client.get(f"{B}/climate").status_code == 200
    assert client.get(f"{B}/glossary").status_code == 200
    assert client.get(f"{B}/glossary/percentile").status_code == 200
    assert client.get(f"{B}/glossary/not-a-term").status_code == 404
    assert client.get(f"{B}/about").status_code == 200