import { expect, it } from "vitest";
import { DEFAULT_THEME, normalizeTheme } from "./theme";

// YouTube and Starship were retired with no data migration (owner, 2026-09-24): an account or
// a browser that still stores one must land on the default scheme, not on an html[data-scheme] that no
// CSS block styles (an unstyled page), and the retired tuner flag must not ride along into the next save.
it("maps a retired scheme to the default and keeps only the known keys", () => {
  const t = normalizeTheme({
    mode: "light",
    scheme: "youtube",
    fontScale: 1.1,
    bgImage: false,
    bgFade: 35,
    ...{ showTuner: true },
  });
  expect(t).toEqual({
    mode: "light",
    scheme: "midnight",
    fontScale: 1.1,
    bgImage: false,
    bgFade: 35,
  });
});

it("keeps a live scheme and fills what is missing or malformed from the defaults", () => {
  expect(normalizeTheme({ scheme: "matrix", mode: "sepia", fontScale: Number.NaN })).toEqual({
    ...DEFAULT_THEME,
    scheme: "matrix",
  });
});