import { OAuth2AccessToken } from '@icynet/oauth2-provider';
import { createParamDecorator, ExecutionContext } from '@nestjs/common';

/**
 * Get the OAuth2 access token scope from the response.
 * Requires the OAuth2 guard or bearer middleware!
 */
export const Scope = createParamDecorator(
  (data: unknown, ctx: ExecutionContext) => {
    const response = ctx.switchToHttp().getResponse();
    const token = response.locals.accessToken as OAuth2AccessToken;
    return token.scope;
  },
);