import { Preferences } from "@capacitor/preferences";
import type { TokenStore } from "./token-store";

/** Key the session JWT is filed under in `@capacitor/preferences`. */
const TOKEN_KEY = "auth_token";

/**
 * The native {@link TokenStore}: the session JWT persisted through
 * `@capacitor/preferences` (Android `SharedPreferences` under the hood),
 * so it survives app restarts the way the browser's httpOnly cookie
 * survives a page reload.
 *
 * Only ever installed (via `setTokenStore`, see `client.ts`) when
 * `Capacitor.isNativePlatform()` — the plain web build keeps the no-op
 * store and its cookie, and this module is never imported there (the
 * bootstrap in `main.tsx` `import()`s it lazily behind that check), so
 * `@capacitor/preferences` stays out of the web bundle.
 */
export const capacitorTokenStore: TokenStore = {
  async get() {
    const { value } = await Preferences.get({ key: TOKEN_KEY });
    return value;
  },
  async set(token) {
    await Preferences.set({ key: TOKEN_KEY, value: token });
  },
  async clear() {
    await Preferences.remove({ key: TOKEN_KEY });
  },
};