from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]


def read(path: str) -> str:
    return (ROOT / path).read_text(encoding="utf-8")


def test_v105_uses_delegated_events_and_deduped_run_refresh():
    runs = read("web/static/runs.js")
    assert "function bindRunRowEvents" in runs
    assert "root.dataset.boundRuns" in runs
    assert "state.runsLoadPromise" in runs
    assert "root.dataset.signature" in runs


def test_v105_endpoint_picker_is_delegated_and_latency_is_precise():
    app = read("web/static/app.js")
    assert "function bindValidationEndpointPicker" in app
    assert "root.dataset.boundEndpointPicker" in app
    assert "function firstPositiveNumber" in app
    assert "function formatLatencySeconds" in app
    assert "source||'live smoke test'" in app


def test_v105_activity_feed_is_lighter_and_does_not_force_scroll_after_user_scroll():
    progress = read("web/static/progress.js")
    assert ".slice(-30).reverse()" in progress
    assert "shouldKeepLatestVisible" in progress
    assert "if(shouldKeepLatestVisible)root.scrollTop=0" in progress
    css = read("web/static/app.css")
    assert "v105: UI cleanup" in css
    assert "overscroll-behavior:contain" in css