import app as app_module


def _client():
    app_module.app.config['TESTING'] = True
    return app_module.app.test_client()


def _stub_data(monkeypatch):
    monkeypatch.setattr(app_module, 'get_cached', lambda key: None)
    monkeypatch.setattr(app_module, 'set_cached', lambda key, data: None)
    monkeypatch.setattr(
        app_module.rtt_scraper,
        'fetch',
        lambda travel_date, user_agent: [
            {'depart_bristol': '07:00', 'arrive_paddington': '08:45', 'headcode': '1A23'},
        ],
    )
    monkeypatch.setattr(
        app_module.eurostar_scraper,
        'fetch',
        lambda destination, travel_date, user_agent: [
            {
                'depart_st_pancras': '10:01',
                'arrive_destination': '13:34',
                'destination': destination,
                'train_number': 'ES 9014',
            },
        ],
    )
    monkeypatch.setattr(
        app_module.eurostar_scraper,
        'timetable_url',
        lambda destination: f'https://example.test/{destination.lower().replace(" ", "-")}',
    )


def test_index_shows_fixed_departure_and_destination_radios():
    client = _client()

    resp = client.get('/')
    html = resp.get_data(as_text=True)

    assert resp.status_code == 200
    assert 'Departure point' in html
    assert 'Bristol Temple Meads' in html
    assert html.count('type="radio"') == len(app_module.DESTINATIONS)
    assert 'destination-rotterdam' in html


def test_search_redirects_to_results_with_selected_params():
    client = _client()

    resp = client.get('/search?destination=rotterdam&travel_date=2026-04-10&min_connection=60&max_connection=120')

    assert resp.status_code == 302
    assert resp.headers['Location'].endswith(
        '/results/rotterdam/2026-04-10?min_connection=60&max_connection=120'
    )


def test_results_shows_same_day_destination_switcher(monkeypatch):
    _stub_data(monkeypatch)
    client = _client()

    resp = client.get('/results/paris/2026-04-10?min_connection=60&max_connection=120')
    html = resp.get_data(as_text=True)

    assert resp.status_code == 200
    assert 'Switch destination for Friday 10 April 2026' in html
    assert '<span class="chip-current">Paris Gare du Nord</span>' in html
    assert '/results/brussels/2026-04-10?min_connection=60&amp;max_connection=120' in html
    assert '/results/rotterdam/2026-04-10?min_connection=60&amp;max_connection=120' in html
    assert 'ES 9014' in html