import 'fetch-undici-polyfill';

import {PlatformClient, RestUserIdType} from '@coveo/platform-client';

export async function generateToken() {
  const platform: PlatformClient = new PlatformClient({
    /**
     * The Plaform URL to use.
     * https://platform.cloud.coveo.com is the default platform host.
     * However, you can target a different environment by changing the host value.
     *
     * Example:
     * Use "https://platformhipaa.cloud.coveo.com" if you want to target the HIPAA environment.
     *
     * You can also target a different region (e.g. https://platform-au.cloud.coveo.com)
     * See https://docs.coveo.com/en/2976/coveo-solutions/deployment-regions-and-strategies#data-residency
     */
    host: process.env.PLATFORM_URL,
    /**
     * The unique identifier of your Coveo organization.
     * To retrieve your org ID, see https://docs.coveo.com/en/148/manage-an-organization/retrieve-the-organization-id
     */
    organizationId: process.env.ORGANIZATION_ID,
    /**
     * An API key with the impersonate privilege in the target organization.
     * See https://docs.coveo.com/en/1718/manage-an-organization/manage-api-keys#add-an-api-key
     */
    accessToken: process.env.API_KEY!,
  });

  try {
    const {token} = await platform.search.createToken({
      /****** Mandatory parameters ******/
      /**
       * The security identities to impersonate when authenticating a query with this search token.
       * The userIds array should contain at least one security indentity.
       * See https://docs.coveo.com/en/56/#userids-array-of-restuserid-required
       */
      userIds: [
        {
          name: process.env.USER_EMAIL!,
          provider: 'Email Security Provider',
          type: RestUserIdType.User,
        },
      ],

      /****** Optional parameters ******/
      /**
         * The name of the search hub to enforce when authenticating a query with this search token.
         * The search hub is a descriptive name of the search interface on which the token is to be used.
         *See https://docs.coveo.com/en/56/#searchhub-string-optional
  
         * Example:
         * searchHub: 'supporthub',
         */

      /**
       * The filter query expression to apply when authenticating a query with this search token.
       * See https://docs.coveo.com/en/56/#filter-string-optional
       *
       * Example:
       * filter: 'NOT @source="my secured source"',
       */
    });
    return token;
  } catch (error) {
    console.error(error);
    return null;
  }
}