packages/components/containers/vpn/gateways/useSpecificCountryCount.ts

   1 import { useMemo } from 'react';
   2
   3 const getMaxForCountry = (country: string, remainingCount: number, deletedInCountries: Record<string, number>) =>
   4     remainingCount -
   5     Object.keys(deletedInCountries).reduce(
   6         (count, otherCountry) => count + (country === otherCountry ? 0 : deletedInCountries[country]),
   7         0
   8     );
   9
  10 export const useSpecificCountryCount = (
  11     model: { quantities?: Record<string, number> },
  12     remainingCount: number,
  13     deletedInCountries: Record<string, number>
  14 ) =>
  15     useMemo(
  16         () =>
  17             Object.keys(model.quantities || {}).reduce(
  18                 (total, country) =>
  19                     total +
  20                     Math.max(
  21                         0,
  22                         (model.quantities?.[country] || 0) -
  23                             getMaxForCountry(country, remainingCount, deletedInCountries)
  24                     ),
  25                 0
  26             ),
  27         [model, remainingCount, deletedInCountries]
  28     );