import { MosaicError, MosaicErrors } from '@axinom/mosaic-service-common';
import { getGqlClient } from '../common/gql-client';
import { IdLinkBeErrors } from '../common/id-link-be-errors';
import {
  DevCreateServiceAccountDocument,
  DevCreateServiceAccountMutation,
  DevCreateServiceAccountMutationVariables,
} from '../generated/graphql.types';
import { getWellKnownEndpoints } from '../well-known-endpoints';

/** Development service account information */
export interface DevServiceAccount {
  clientId: string;
  clientSecret: string;
  serviceAccountName: string;
}

/**
 * This function creates a new service account which can be used during development.
 * @param authEndpoint URL for id-service authEndpoint.
 * @param serviceAccountName Name of the service account.
 * @param permissions The list of permissions to be assigned to the service account. This is an array of shape { serviceId: string, permissions: string[] }.
 * @returns {DevServiceAccount} New development service account information.
 */
export const devCreateServiceAccount = async (
  authEndpoint: string,
  serviceId: string,
  serviceAccountName: string,
  tenantId: string,
  environmentId: string,
  permissions: {
    serviceId: string;
    permissions?: string[];
  }[],
): Promise<DevServiceAccount> => {
  const client = getGqlClient(
    (await getWellKnownEndpoints(authEndpoint)).authGraphQlEndpoint,
    'Bearer token-not-needed-for-DEV-endpoints',
  );

  const result = await client.mutate<
    DevCreateServiceAccountMutation,
    DevCreateServiceAccountMutationVariables
  >({
    mutation: DevCreateServiceAccountDocument,
    variables: {
      input: {
        serviceAccountName,
        tenantId,
        environmentId: environmentId,
        permissionStructure: permissions,
      },
    },
    errorPolicy: 'all',
    fetchPolicy: 'no-cache',
  });

  if (!result.errors) {
    if (result.data?._DEV_createServiceAccount) {
      return result.data._DEV_createServiceAccount;
    }
    throw new MosaicError({
      code: MosaicErrors.UnexpectedNullUndefined.code,
      message: `Unexpected null or undefined value received for '_DEV_createServiceAccount' result.`,
    });
  } else {
    const aggregatedErrorMessage = result.errors.reduce(
      (aggregatedError, gqlError) => {
        return (aggregatedError += gqlError.message);
      },
      '',
    );

    throw new MosaicError({
      ...IdLinkBeErrors.ServiceAccountCreateError,
      details: {
        originalError: aggregatedErrorMessage,
      },
    });
  }
};