export interface AppSettings {
  showRouteList: boolean;
  customApiBase: string;
  autoDevToken: boolean;
}

export const DEFAULT_SETTINGS: AppSettings = {
  showRouteList: true,
  customApiBase: "",
  autoDevToken: true,
};

const STORAGE_KEY = "saas-app-settings";

export function loadSettings(): AppSettings {
  if (typeof window === "undefined") return DEFAULT_SETTINGS;
  try {
    const raw = window.localStorage.getItem(STORAGE_KEY);
    if (!raw) return DEFAULT_SETTINGS;
    const parsed = JSON.parse(raw) as Partial<AppSettings>;
    return {
      ...DEFAULT_SETTINGS,
      ...parsed,
    };
  } catch {
    return DEFAULT_SETTINGS;
  }
}

export function saveSettings(settings: AppSettings) {
  if (typeof window === "undefined") return;
  window.localStorage.setItem(STORAGE_KEY, JSON.stringify(settings));
}