import { describe, expect, test } from "bun:test";
import {
  parseThemeQuery,
  resolveIncomingThemeMode,
  resolveStoredTheme,
} from "./theme-sync";

describe("theme sync helpers", () => {
  test("resolves stored analytics theme values", () => {
    expect(resolveStoredTheme("light", true)).toBe("light");
    expect(resolveStoredTheme("dark", false)).toBe("dark");
    expect(resolveStoredTheme("system", true)).toBe("dark");
    expect(resolveStoredTheme("system", false)).toBe("light");
  });

  test("maps new-api theme messages to analytics themes", () => {
    expect(resolveIncomingThemeMode("light", true)).toBe("light");
    expect(resolveIncomingThemeMode("dark", false)).toBe("dark");
    expect(resolveIncomingThemeMode("auto", true)).toBe("dark");
    expect(resolveIncomingThemeMode("auto", false)).toBe("light");
    expect(resolveIncomingThemeMode("system", true)).toBe("dark");
    expect(resolveIncomingThemeMode("unknown", true)).toBeNull();
  });

  test("parses theme override from query params", () => {
    expect(parseThemeQuery("light")).toBe("light");
    expect(parseThemeQuery("dark")).toBe("dark");
    expect(parseThemeQuery("auto")).toBe("system");
    expect(parseThemeQuery("system")).toBe("system");
    expect(parseThemeQuery("LIGHT")).toBe("light");
    expect(parseThemeQuery("unknown")).toBeNull();
    expect(parseThemeQuery(null)).toBeNull();
  });
});