"""Check the app's figure without a browser: trace structure, palette, axes."""

import umap_app as app

PALETTE = set(app.THEMES["light"]["series"] + app.THEMES["dark"]["series"]
              + [app.THEMES["light"]["other"], app.THEMES["dark"]["other"],
                 app.THEMES["light"]["grid"], app.THEMES["dark"]["grid"]])

df = app.load_nodes()
print(f"nodes {len(df):,}  ·  coords x[{df.x.min():.1f},{df.x.max():.1f}] "
      f"y[{df.y.min():.1f},{df.y.max():.1f}]")

CASES = {
    "top 3, light": dict(mode="light"),
    "top 3, dark": dict(mode="dark"),
    "highlight Homo sapiens": dict(highlight="Homo sapiens"),
    "restrict to 2 species": dict(shown=("Bos taurus", "Mus musculus")),
    "colour by tissue1": dict(group_by="tissue1"),
}

for name, kwargs in CASES.items():
    fig, visible = app.build_figure(df, **kwargs)
    hues = {t.marker.color for t in fig.data}
    drawn = sum(len(t.x) for t in fig.data)
    coloured = sum(len(t.x) for t in fig.data if t.marker.color
                   not in (app.THEMES["light"]["other"], app.THEMES["dark"]["other"],
                           app.THEMES["light"]["grid"], app.THEMES["dark"]["grid"]))
    assert hues <= PALETTE, f"{name}: off-palette colour {hues - PALETTE}"
    assert drawn == len(df), f"{name}: {drawn} points drawn, expected {len(df)}"
    assert len([t for t in fig.data if t.showlegend is not False]) <= 4
    assert fig.layout.xaxis.visible is False and fig.layout.yaxis.visible is False
    assert fig.layout.xaxis.scaleanchor == "y", "aspect ratio not locked"
    assert all("customdata" in t.hovertemplate for t in fig.data)
    print(f"\n{name}")
    print(f"  traces {len(fig.data)} · all {drawn:,} nodes drawn · "
          f"{coloured:,} in a series hue")
    for t in fig.data:
        print(f"    {(t.name or '—'):<34} {len(t.x):>7,}  {t.marker.color}")

print("\nall figure checks passed: palette clean, every node drawn, "
      "axes hidden, aspect locked, hover wired")