import { cache } from 'react';

import { listCollections, 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 collectionsLoader() {
  const { collections } = await listCollections({
    fields: 'id, handle',
  });
  return collections ?? [];
}
export const loadCollections = cache(collectionsLoader);

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

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

  const { response } = await listProducts({
    countryCode,
    queryParams: { limit: 100, collection_id: collection?.id },
  });
  return { analysisPackages: response.products, countryCode };
}
export const loadAnalysisPackages = cache(analysisPackagesLoader);