"""Interface loader: the package's web/ files, versions, JS syntax."""
import shutil
import subprocess

import pytest


def test_constants_are_read_from_web_files():
    from lidar_pipeline import mapui
    for name, text in (("map.html", mapui._MAP_HTML), ("map.css", mapui._MAP_CSS),
                       ("map.js", mapui._MAP_JS)):
        assert (mapui.WEB_DIR / name).read_text(encoding="utf-8") == text


def test_web_files_ship_with_installed_package():
    # Full image: package installed by pip (package_data) — all three files
    # must be there, otherwise the interface is empty in production.
    import lidar_pipeline
    from pathlib import Path
    web = Path(lidar_pipeline.__file__).resolve().parent / "web"
    for name in ("map.html", "map.css", "map.js"):
        assert (web / name).is_file(), name


def test_markers_kept():
    from lidar_pipeline import mapui
    assert "__ASSETS_V__" in mapui._MAP_HTML
    assert "__UI_VERSION__" in mapui._MAP_JS
    assert "__ASSETS_V__" not in mapui.render_html()


@pytest.mark.skipif(shutil.which("node") is None, reason="node not installed")
def test_js_syntax():
    from lidar_pipeline import mapui
    res = subprocess.run(["node", "--check", str(mapui.WEB_DIR / "map.js")],
                         capture_output=True, text=True)
    assert res.returncode == 0, res.stderr