packages/shared/lib/helpers/renew.ts

   1 import { PLANS, type PlanIDs } from '@proton/payments';
   2 import { type Currency } from '@proton/payments';
   3 import { CYCLE } from '@proton/shared/lib/constants';
   4 import { getCheckout, getOptimisticCheckResult } from '@proton/shared/lib/helpers/checkout';
   5 import type { Cycle, PlansMap } from '@proton/shared/lib/interfaces';
   6
   7 // This is currently hardcoded. Once the payments backend supports renewals at different cycles,
   8 // it will be changed to more generic code. Currently there is no way to tell which plan renews at which cycle,
   9 // so we have to hardcode it.
  10 export const isSpecialRenewPlan = (planIDs: PlanIDs) => !!planIDs[PLANS.VPN2024];
  11
  12 const getRenewCycle = (cycle: Cycle, planIDs: PlanIDs): CYCLE => {
  13     if (!isSpecialRenewPlan(planIDs)) {
  14         return cycle;
  15     }
  16
  17     if (cycle === CYCLE.MONTHLY || cycle === CYCLE.THREE || cycle === CYCLE.YEARLY) {
  18         return cycle;
  19     }
  20     // 15,24,30 all renew at yearly.
  21     return CYCLE.YEARLY;
  22 };
  23
  24 export const getOptimisticRenewCycleAndPrice = ({
  25     planIDs,
  26     plansMap,
  27     cycle,
  28     currency,
  29 }: {
  30     cycle: Cycle;
  31     planIDs: PlanIDs;
  32     plansMap: PlansMap;
  33     currency: Currency;
  34 }): {
  35     renewPrice: number;
  36     renewalLength: CYCLE;
  37 } => {
  38     const nextCycle = getRenewCycle(cycle, planIDs);
  39     const latestCheckout = getCheckout({
  40         plansMap,
  41         planIDs,
  42         checkResult: getOptimisticCheckResult({
  43             planIDs,
  44             plansMap,
  45             cycle: nextCycle,
  46             currency,
  47         }),
  48     });
  49
  50     return {
  51         // The API doesn't return the correct next cycle or RenewAmount for the VPN plan since we don't have chargebee
  52         // So we calculate it with the cycle discount here
  53         renewPrice: latestCheckout.withDiscountPerCycle,
  54         renewalLength: nextCycle,
  55     };
  56 };