import { updateUserProfile } from "~/utils/db/users.db.server";

export const LIGHT_OR_DARK_MODES = ["light", "dark"] as const;

export type LightOrDarkMode = (typeof LIGHT_OR_DARK_MODES)[number];

export function normalizeLightOrDarkMode(value: unknown): LightOrDarkMode {
  return value === "dark" ? "dark" : "light";
}

export function nextLightOrDarkMode(current: unknown): LightOrDarkMode {
  return normalizeLightOrDarkMode(current) === "dark" ? "light" : "dark";
}

export async function persistUserLightOrDarkMode(userId: string | null | undefined, lightOrDarkMode: unknown) {
  if (!userId) {
    return null;
  }

  return await updateUserProfile({ lightOrDarkMode: normalizeLightOrDarkMode(lightOrDarkMode) }, userId);
}