// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only

import { version } from './packageJson.js';
import { getUserAgent } from './getUserAgent.js';

type AuthenticateOptionsType = Readonly<{
  userIdentifier: string;
  userSecret: string;
}>;

export const API_BASE = new URL('https://api.smartling.com/');
export const PROJECT_ID = 'ef62d1ebb';

export async function authenticate({
  userIdentifier,
  userSecret,
}: AuthenticateOptionsType): Promise<Headers> {
  const res = await fetch(new URL('./auth-api/v2/authenticate', API_BASE), {
    method: 'POST',
    headers: {
      'content-type': 'application/json',
    },
    body: JSON.stringify({
      userIdentifier,
      userSecret,
    }),
  });
  if (!res.ok) {
    throw new Error('Failed to authenticate with Smartling');
  }

  const {
    response: { data: auth },
  } = await res.json();

  return new Headers({
    authorization: `${auth.tokenType} ${auth.accessToken}`,
    'user-agent': getUserAgent(version),
  });
}