packages/shared/lib/helpers/renew.ts

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