saleor-apps-redis_apl/apps/taxes/src/modules/avatax/avatax-client-tax-code.service.ts

import Avatax from "avatax";
import { createLogger, Logger } from "../../lib/logger";
import { FetchResult } from "avatax/lib/utils/fetch_result";
import { TaxCodeModel } from "avatax/lib/models/TaxCodeModel";

export class AvataxClientTaxCodeService {
  // * These are the tax codes that we don't want to show to the user. For some reason, Avatax has them as active.
  private readonly notSuitableKeys = ["Expired Tax Code - Do Not Use"];
  private logger: Logger;
  constructor(private client: Avatax) {
    this.logger = createLogger({ name: "AvataxClientTaxCodeService" });
  }

  private filterOutInvalid(response: FetchResult<TaxCodeModel>) {
    return response.value.filter((taxCode) => {
      return (
        taxCode.isActive &&
        taxCode.description &&
        !this.notSuitableKeys.includes(taxCode.description)
      );
    });
  }

  async getTaxCodes() {
    // * If we want to do filtering on the front-end, we can use the `filter` parameter.
    const result = await this.client.listTaxCodes({});

    return this.filterOutInvalid(result);
  }
}