medreport_mrb2b/app/home/(user)/_lib/server/load-analysis-packages.ts

import { cache } from 'react';
import Isikukood, { Gender } from 'isikukood';

import { listProductTypes, listProducts } from "@lib/data/products";
import { listRegions } from '@lib/data/regions';
import { getAnalysisElementMedusaProductIds } from '@/utils/medusa-product';
import type { StoreProduct } from '@medusajs/types';
import { loadCurrentUserAccount } from './load-user-account';
import { AccountWithParams } from '@/packages/features/accounts/src/server/api';
import { AnalysisPackageWithVariant } from '@kit/shared/components/select-analysis-package';

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);

function userSpecificVariantLoader({
  account,
}: {
  account: AccountWithParams;
}) {
  const { personal_code: personalCode } = account;
  if (!personalCode) {
    throw new Error('Personal code not found');
  }
  const parsed = new Isikukood(personalCode);
  const ageRange = (() => {
    const age = parsed.getAge();
    if (age >= 18 && age <= 29) {
      return '18-29';
    }
    if (age >= 30 && age <= 39) {
      return '30-39';
    }
    if (age >= 40 && age <= 49) {
      return '40-49';
    }
    if (age >= 50 && age <= 59) {
      return '50-59';
    }
    if (age >= 60) {
      return '60';
    }
    throw new Error('Age range not supported');
  })();
  const gender = parsed.getGender() === Gender.MALE ? 'M' : 'F';

  return ({
    product,
  }: {
    product: StoreProduct;
  }) => {
    const variants = product.variants;
    if (!variants) {
      return null;
    }

    const variant = variants.find((v) => v.options?.every((o) => [ageRange, gender].includes(o.value)));
    if (!variant) {
      return null;
    }
    return variant;
  }
}

async function analysisPackageElementsLoader({
  analysisPackagesWithVariant,
  countryCode,
}: {
  analysisPackagesWithVariant: AnalysisPackageWithVariant[];
  countryCode: string;
}) {
  const analysisElementMedusaProductIds = getAnalysisElementMedusaProductIds(analysisPackagesWithVariant);
  if (analysisElementMedusaProductIds.length === 0) {
    return [];
  }

  const { response: { products } } = await listProducts({
    countryCode,
    queryParams: {
      id: analysisElementMedusaProductIds,
      limit: 100,
    },
  });

  const standardPackage = analysisPackagesWithVariant.find(({ isStandard }) => isStandard);
  const standardPlusPackage = analysisPackagesWithVariant.find(({ isStandardPlus }) => isStandardPlus);
  const premiumPackage = analysisPackagesWithVariant.find(({ isPremium }) => isPremium);
  if (!standardPackage || !standardPlusPackage || !premiumPackage) {
    return [];
  }

  const standardPackageAnalyses = getAnalysisElementMedusaProductIds([standardPackage]);
  const standardPlusPackageAnalyses = getAnalysisElementMedusaProductIds([standardPlusPackage]);
  const premiumPackageAnalyses = getAnalysisElementMedusaProductIds([premiumPackage]);

  return products.map(({ id, title, description }) => ({
    id,
    title,
    description,
    isIncludedInStandard: standardPackageAnalyses.includes(id),
    isIncludedInStandardPlus: standardPlusPackageAnalyses.includes(id),
    isIncludedInPremium: premiumPackageAnalyses.includes(id),
  }));
}

async function analysisPackagesWithVariantLoader({
  account,
  countryCode,
}: {
  account: AccountWithParams;
  countryCode: string;
}) {
  const productTypes = await loadProductTypes();
  const productType = productTypes.find(({ metadata }) => metadata?.handle === 'analysis-packages');
  if (!productType) {
    return null;
  }
  const analysisPackagesResponse = await listProducts({
    countryCode,
    queryParams: { limit: 100, "type_id[0]": productType.id },
  });

  const getVariant = userSpecificVariantLoader({ account });
  const analysisPackagesWithVariant = analysisPackagesResponse.response.products
    .reduce((acc, product) => {
      const variant = getVariant({ product });
      if (!variant) {
        return acc;
      }
      return [
        ...acc,
        {
          variantId: variant.id,
          nrOfAnalyses: getAnalysisElementMedusaProductIds([product]).length,
          price: variant.calculated_price?.calculated_amount ?? 0,
          title: product.title,
          subtitle: product.subtitle,
          description: product.description,
          metadata: product.metadata,
          isStandard: product.metadata?.analysisPackageTier === 'standard',
          isStandardPlus: product.metadata?.analysisPackageTier === 'standard-plus',
          isPremium: product.metadata?.analysisPackageTier === 'premium',
        },
      ];
    }, [] as AnalysisPackageWithVariant[]);

  return analysisPackagesWithVariant;
}

async function analysisPackagesLoader() {
  const account = await loadCurrentUserAccount();
  if (!account) {
    throw new Error('Account not found');
  }

  const countryCodes = await loadCountryCodes();
  const countryCode = countryCodes[0]!;

  const analysisPackagesWithVariant = await analysisPackagesWithVariantLoader({ account, countryCode });
  if (!analysisPackagesWithVariant) {
    return { analysisPackageElements: [], analysisPackages: [], countryCode };
  }

  const analysisPackageElements = await analysisPackageElementsLoader({ analysisPackagesWithVariant, countryCode });

  return { analysisPackageElements, analysisPackages: analysisPackagesWithVariant, countryCode };
}
export const loadAnalysisPackages = cache(analysisPackagesLoader);