from pathlib import Path


ROOT = Path(__file__).parents[1]


def test_frontend_assets_exist_and_use_api():
    html = (ROOT / 'templates/index.html').read_text()
    script = (ROOT / 'static/app.js').read_text()
    css = (ROOT / 'static/style.css').read_text()
    assert '/static/style.css' in html
    assert '/static/app.js' in html
    assert "fetch('/api/usage'" in script
    assert 'entry.id === limit.id' in script
    assert 'requestAnimationFrame' in script
    assert "if (limit.used != null) return `${fmt(limit.used)} ${limit.unit || ''}`.trim();" in script
    assert "meta.classList.add('standalone')" in script
    assert '.meta.standalone .amount' in css
    assert 'font-size: clamp(24px, 2.2vw, 34px)' in css
    assert 'grid-template-columns' in css