from pathlib import Path

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


def test_version_is_single_source():
    version = (ROOT / "VERSION").read_text(encoding="utf-8").strip()
    ui = (ROOT / "ui_server.py").read_text(encoding="utf-8")
    html = (ROOT / "app.html").read_text(encoding="utf-8")
    assert version == "3.3.0"
    assert 'with_name("VERSION")' in ui
    assert "__APP_VERSION__" in html


def test_single_frontend_template():
    assert (ROOT / "app.html").exists()
    assert not (ROOT / "templates" / "app.html").exists()
    ui = (ROOT / "ui_server.py").read_text(encoding="utf-8")
    assert 'with_name("app.html")' in ui
    assert "templates/app.html" not in ui


def test_hf_space_metadata_is_valid_shape():
    readme = (ROOT / "README.md").read_text(encoding="utf-8")
    assert readme.startswith("---\n")
    meta_end = readme.find("\n---", 4)
    assert meta_end > 0
    meta = readme[4:meta_end]
    assert "sdk: docker" in meta
    assert "app_port: 7860" in meta