@accounter/server
Version:
Accounter GraphQL server
82 lines • 2.87 kB
JavaScript
import { format, subMonths } from 'date-fns';
import { timelessDateStringToLocalDate } from '../../../shared/helpers/misc.js';
export function normalizeSubscriptionPlan(raw) {
if (!raw) {
return null;
}
switch (raw.toLocaleLowerCase()) {
case 'enterprise':
return 'ENTERPRISE';
case 'pro':
return 'PRO';
default:
throw new Error(`Unknown subscription plan: ${raw}`);
}
}
export function getSubscriptionPlanName(plan) {
switch (plan) {
case 'ENTERPRISE':
return 'Enterprise License';
case 'PRO':
return 'Pro Plan';
default:
throw new Error(`Unknown subscription plan: ${plan}`);
}
}
export function normalizeProduct(raw) {
if (!raw) {
return null;
}
switch (raw.toLocaleLowerCase()) {
case 'hive':
return 'HIVE';
case 'stellate':
return 'STELLATE';
default:
throw new Error(`Unknown product: ${raw}`);
}
}
export function getProductName(product) {
switch (product) {
case 'HIVE':
return 'GraphQL Hive';
case 'STELLATE':
return 'Stellate';
default:
throw new Error(`Unknown product: ${product}`);
}
}
export function normalizeBillingCycle(raw) {
switch (raw.toLocaleLowerCase()) {
case 'monthly':
return 'MONTHLY';
case 'annual':
return 'ANNUAL';
default:
throw new Error(`Unknown billing cycle: ${raw}`);
}
}
/**
* Builds the document description for a contract-generated document.
*
* - Monthly contracts keep the billed month description (e.g. "… - May 2026").
* - Annual contracts use the contract's start & end dates (e.g.
* "… January 15th, 2025 → January 14th, 2026").
*/
export function buildContractDocumentDescription(contract, issueMonth) {
const productPlanName = `${getProductName(normalizeProduct(contract.product ?? ''))} ${getSubscriptionPlanName(normalizeSubscriptionPlan(contract.plan ?? ''))}`;
if (normalizeBillingCycle(contract.billing_cycle) === 'ANNUAL') {
const start = format(contract.start_date, 'MMMM do, yyyy');
const end = format(contract.end_date, 'MMMM do, yyyy');
return `${productPlanName} ${start} → ${end}`;
}
// Parse `issueMonth` as local midnight so the local-time date-fns operations below don't shift
// across a timezone boundary. When no issue month is given, bill the previous month.
const billedDate = issueMonth
? timelessDateStringToLocalDate(issueMonth)
: subMonths(new Date(), 1);
const year = billedDate.getFullYear();
const month = format(billedDate, 'MMMM');
return `${productPlanName} - ${month} ${year}`;
}
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