export interface TwitchExtLike {
  onAuthorized(callback: (auth: { token: string; userId: string }) => void): void;
  onContext(callback: (context: Record<string, unknown>) => void): void;
  onVisibilityChanged(callback: (isVisible: boolean, context: unknown) => void): void;
  listen(topic: string, callback: (target: string, contentType: string, message: string) => void): void;
}

export const twitchExtMock: TwitchExtLike = {
  onAuthorized(callback) {
    callback({
      token:
        'mock.jwt.token',
      userId: 'U_mock_viewer'
    });
  },
  onContext(callback) {
    callback({ theme: 'dark' });
  },
  onVisibilityChanged(callback) {
    callback(true, {});
  },
  listen(_topic, _callback) {
    // No-op in local mock mode.
  }
};