/**
 * The TMDB API key used when the caller passes none. Every app that doesn't pass its own key shares
 * it, so TMDB can rate-limit or revoke it at any time.
 */
const SHARED_TMDB_API_KEY = '5201b54eb0968700e693a30576d7d4dc';

const warned = new Set<string>();

/**
 * The caller's TMDB API key, or the shared key with a `console.warn` the first time each class
 * falls back to it. A missing key is a setup problem for the app's developer, not a failed request:
 * requests still work, so it is a warning (a LogBox notice in React Native dev builds), not an error.
 */
export const resolveTmdbApiKey = (apiKey: string | undefined, className: string): string => {
  const key = apiKey?.trim();
  if (key) return key;

  if (!warned.has(className)) {
    warned.add(className);
    console.warn(
      `[react-native-consumet] ${className} was created without a TMDB API key, so it uses a key shared by ` +
        'every app that passes none, which TMDB can rate-limit or revoke at any time. Pass your own key ' +
        '(https://www.themoviedb.org/settings/api).'
    );
  }
  return SHARED_TMDB_API_KEY;
};