@accounter/server/src/modules/transactions/helpers/effective-date.helper.ts

import type { IGetTransactionsByIdsResult } from '@modules/transactions/types.js';
import { Currency } from '@shared/gql-types';
import { dateToTimelessDateString } from '@shared/helpers';

export function effectiveDateSupplement(transaction: IGetTransactionsByIdsResult) {
  if (transaction.debit_date_override) {
    return dateToTimelessDateString(transaction.debit_date_override);
  }
  if (transaction.debit_timestamp) {
    return dateToTimelessDateString(transaction.debit_timestamp);
  }
  if (transaction.debit_date) {
    return dateToTimelessDateString(transaction.debit_date);
  }
  // if currency is ILS, fallback to event_date
  if (transaction.currency === Currency.Ils) {
    return dateToTimelessDateString(transaction.event_date);
  }
  return null;
}