import { Buffer } from 'node:buffer';

const refreshToken = async ($) => {
  const params = {
    grant_type: 'refresh_token',
    refresh_token: $.auth.data.refreshToken,
  };

  const basicAuthToken = Buffer.from(
    `${$.auth.data.clientId}:${$.auth.data.clientSecret}`
  ).toString('base64');

  const { data } = await $.http.post('oauth2/token', null, {
    params,
    headers: {
      Authorization: `Basic ${basicAuthToken}`,
    },
    additionalProperties: {
      skipAddingAuthHeader: true,
    },
  });

  const {
    access_token: accessToken,
    expires_in: expiresIn,
    token_type: tokenType,
  } = data;

  await $.auth.set({
    accessToken,
    expiresIn,
    tokenType,
  });
};

export default refreshToken;