import type { SWRHook } from '@commerce/utils/types';
import useCustomer from '@commerce/customer/use-customer';
import type { UseCustomer } from '@commerce/customer/use-customer';
import type { CustomerHook } from '@commerce/types/customer';
import type { IToken } from '@spree/storefront-api-v2-sdk/types/interfaces/Token';
import type { GraphQLFetcherResult } from '@commerce/api';
import type { IAccount } from '@spree/storefront-api-v2-sdk/types/interfaces/Account';
import { FetcherError } from '@commerce/utils/errors';
import normalizeUser from '../utils/normalizations/normalize-user';
import isLoggedIn from '../utils/tokens/is-logged-in';
import ensureIToken from '../utils/tokens/ensure-itoken';

export default useCustomer as UseCustomer<typeof handler>;

export const handler: SWRHook<CustomerHook> = {
  // Provide fetchOptions for SWR cache key
  fetchOptions: {
    url: 'account',
    query: 'get'
  },
  async fetcher({ input, options, fetch }) {
    console.info(
      'useCustomer fetcher called. Configuration: ',
      'input: ',
      input,
      'options: ',
      options
    );

    if (!isLoggedIn()) {
      return null;
    }

    const token: IToken | undefined = ensureIToken();

    if (!token) {
      return null;
    }

    try {
      const { data: spreeAccountInfoSuccessResponse } = await fetch<GraphQLFetcherResult<IAccount>>(
        {
          variables: {
            methodPath: 'account.accountInfo',
            arguments: [token]
          }
        }
      );

      const spreeUser = spreeAccountInfoSuccessResponse.data;

      const normalizedUser = normalizeUser(spreeAccountInfoSuccessResponse, spreeUser);

      return normalizedUser;
    } catch (fetchUserError) {
      if (!(fetchUserError instanceof FetcherError) || fetchUserError.status !== 404) {
        throw fetchUserError;
      }

      return null;
    }
  },
  useHook: ({ useData }) => {
    const useWrappedHook: ReturnType<SWRHook<CustomerHook>['useHook']> = (input) => {
      return useData({
        swrOptions: {
          revalidateOnFocus: false,
          ...input?.swrOptions
        }
      });
    };

    return useWrappedHook;
  }
};