// dashboard/features/studio/theme.js
// Pure theme resolution. DOM application lives in main.js (applyTheme).

export const THEMES = ["auto", "light", "dark"];
export const THEME_LABEL = { auto: "auto", light: "claro", dark: "escuro" };

/** Normalize a stored value to a valid theme (default auto). */
export function resolveTheme(stored) {
  return THEMES.includes(stored) ? stored : "auto";
}

/** Cycle auto → light → dark → auto. */
export function nextTheme(current) {
  const i = THEMES.indexOf(resolveTheme(current));
  return THEMES[(i + 1) % THEMES.length];
}