import { cache } from 'react';

import { listProductTypes, listProducts, listRegions } from "@lib/data";

async function countryCodesLoader() {
  const countryCodes = await listRegions().then((regions) =>
    regions?.map((r) => r.countries?.map((c) => c.iso_2)).flat(),
  );
  return countryCodes ?? [];
}
export const loadCountryCodes = cache(countryCodesLoader);

async function productTypesLoader() {
  const { productTypes } = await listProductTypes();
  return productTypes ?? [];
}
export const loadProductTypes = cache(productTypesLoader);

async function analysisPackagesLoader() {
  const [countryCodes, productTypes] = await Promise.all([loadCountryCodes(), loadProductTypes()]);  
  const countryCode = countryCodes[0]!;

  const productType = productTypes.find(({ metadata }) => metadata?.handle === 'analysis-packages');
  if (!productType) {
    return { analysisPackages: [], countryCode };
  }

  const { response } = await listProducts({
    countryCode,
    queryParams: { limit: 100, "type_id[0]": productType.id },
  });
  return { analysisPackages: response.products, countryCode };
}
export const loadAnalysisPackages = cache(analysisPackagesLoader);