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import { InjectRepository } from '@nestjs/typeorm';
import { partition } from 'lodash-es';
import { In, Repository, type QueryRunner } from 'typeorm';
import { Creating, PaymentDiff, PaymentDiffType, PaymentLock, type Company, type Payment } from '@amalia/core/models';
import { isUniqueViolationError } from '@amalia/ext/typeorm';
import { promiseAllSettledAutoThrow } from '@amalia/ext/typescript';
import { type PaymentMergeResult } from '../save/payments-save.types';
@Injectable()
export class PaymentLockService {
public constructor(
@InjectRepository(PaymentLock)
private readonly paymentLockRepository: Repository<PaymentLock>,
@InjectRepository(PaymentDiff)
private readonly paymentDiffRepository: Repository<PaymentDiff>,
) {}
public getPaymentLocks(company: Company): Promise<PaymentLock[]> {
return this.paymentLockRepository.find({
where: { company: { id: company.id } },
relations: ['period'],
});
}
public async lockContext(company: Company, context: PaymentLock) {
try {
return await this.paymentLockRepository.save({
companyId: company.id,
periodId: context.period.id,
});
} catch (e) {
if (isUniqueViolationError(e)) {
throw new ConflictException('This period is already locked');
} else {
throw e;
}
}
}
public async unlockContext(company: Company, context: PaymentLock) {
await this.paymentLockRepository.delete({
companyId: company.id,
periodId: context.period.id,
});
}
/**
* If we couldn't save the payments because the contexts were locked, register
* the diffs in the Audit table.
*
* I wish we could save them all, like shelter cats.
*
* @param company
* @param paymentsDiffToApply
* @param parentQueryRunner
*/
public async registerDiffs(
company: Company,
paymentsDiffToApply: PaymentMergeResult,
parentQueryRunner: QueryRunner,
) {
// Put released payments aside.
const [justReleasedPayments, otherEditedPayments] = partition(
paymentsDiffToApply.paymentsToEdit ?? [],
({ newPayment, previousPayment }) =>
(newPayment.paymentPeriod?.id || newPayment.paymentPeriodId) !==
(previousPayment.paymentPeriod?.id || previousPayment.paymentPeriodId),
);
// And now partition editions, those that have 0 diff will be deleted.
const [editionDiffWithChange, editionDiffWithoutChange] = partition(
otherEditedPayments,
({ newPayment, previousPayment }) => newPayment.value !== previousPayment.value,
);
const diffs: Creating<PaymentDiff>[] = [
...(paymentsDiffToApply.paymentsCreated ?? []).map((payment) => ({
diffType: PaymentDiffType.NEW,
company,
companyId: company.id,
payment,
paymentId: payment.id,
paymentPeriodId: payment.paymentPeriod?.id || payment.paymentPeriodId!,
currency: payment.currency,
oldValue: 0,
newValue: payment.value,
rate: payment.rate,
applied: false,
})),
...editionDiffWithChange.map(({ newPayment, previousPayment }) => ({
diffType: PaymentDiffType.EDIT,
company,
companyId: company.id,
payment: newPayment,
paymentId: newPayment.id,
paymentPeriodId: newPayment.paymentPeriodId!,
currency: newPayment.currency,
oldValue: previousPayment.value,
newValue: newPayment.value,
rate: newPayment.rate,
applied: false,
})),
...justReleasedPayments.map(({ newPayment }) => ({
diffType: PaymentDiffType.RELEASE,
company,
companyId: company.id,
payment: newPayment,
paymentId: newPayment.id,
paymentPeriodId: newPayment.paymentPeriodId!,
currency: newPayment.currency,
oldValue: 0, // The payment just appeared on the period.
newValue: newPayment.value,
rate: newPayment.rate,
applied: false,
})),
...(paymentsDiffToApply.paymentsToRemove ?? []).map((payment) => ({
diffType: PaymentDiffType.DELETE,
company,
companyId: company.id,
payment,
paymentId: payment.id,
paymentPeriodId: payment.paymentPeriodId!,
currency: payment.currency,
oldValue: payment.value,
newValue: 0,
rate: payment.rate,
applied: false,
})),
];
// Upsert the diffs in db.
await parentQueryRunner.manager.getRepository(PaymentDiff).upsert(diffs, ['paymentId']);
await promiseAllSettledAutoThrow(
[
// The edition diff that have no difference in amount should be deleted since they're reset.
parentQueryRunner.manager.getRepository(PaymentDiff).delete({
paymentId: In(editionDiffWithoutChange.map((d) => d.newPayment.id)),
}),
// Delete the DELETION diffs with a 0 amount, because it can be a new payment that were added then deleted.
// We cannot just filter them out of the map above, because we need them to be upserted first.
paymentsDiffToApply.paymentsToRemove &&
parentQueryRunner.manager.getRepository(PaymentDiff).delete({
paymentId: In(paymentsDiffToApply.paymentsToRemove.filter((p) => p.value === 0).map((p) => p.id)),
}),
].filter(Boolean),
);
}
/**
* If a context was locked then unlocked, we have to flush the diffs of the
* payments we successfully saved.
*
* @param company
* @param payments
* @param parentQueryRunner
*/
public async flushDiffs(company: Company, payments: Payment[], parentQueryRunner: QueryRunner) {
if (!payments.length) {
return;
}
await parentQueryRunner.manager.getRepository(PaymentDiff).delete({
company: { id: company.id },
paymentId: In(payments.map((p) => p.id)),
});
}
public static partitionLockedPayments(
paymentLocks: PaymentLock[],
payments: Payment[],
): [nonLockedPayments: Payment[], lockedPayments: Payment[]];
public static partitionLockedPayments(
paymentLocks: PaymentLock[],
payments: Creating<Payment>[],
): [nonLockedPayments: Creating<Payment>[], lockedPayments: Creating<Payment>[]];
public static partitionLockedPayments(
paymentLocks: PaymentLock[],
payments: Creating<Payment>[] | Payment[],
): [nonLockedPayments: Creating<Payment>[] | Payment[], lockedPayments: Creating<Payment>[] | Payment[]] {
const lockedPeriodIds = new Set(paymentLocks.map((lc) => lc.period.id));
// For now, we only handle the "period" lock.
const callback = (p: Creating<Payment>) => {
const paymentPeriodId = p.paymentPeriod?.id || p.paymentPeriodId;
return !paymentPeriodId || !lockedPeriodIds.has(paymentPeriodId);
};
// Partition is a lodash function that filters using the callback, put truthies first then falsies in second position.
return partition(payments, callback);
}
/**
* List all diffs for a company.
*
* @param company
*/
public listPaymentDiffs(company: Company) {
return this.paymentDiffRepository.find({
where: { company: { id: company.id } },
relations: [
'paymentPeriod',
'payment',
'payment.user',
'payment.plan',
'payment.period',
'payment.rule',
'payment.rule.commissionVariable',
'payment.rule.commissionVariable.object',
],
});
}
}
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