import { sub } from 'date-fns';
import { GraphQLError } from 'graphql';
import { EMPTY_UUID } from '../../../../../shared/constants.js';
import { Currency } from '../../../../../shared/enums.js';
import { dateToTimelessDateString, formatCurrency } from '../../../../../shared/helpers/index.js';
import { AdminContextProvider } from '../../../../admin-context/providers/admin-context.provider.js';
import { ExchangeProvider } from '../../../../exchange-rates/providers/exchange.provider.js';
import { businessTransactionsSumFromLedgerRecords } from '../../../../financial-entities/resolvers/business-transactions-sum-from-ledger-records.resolver.js';
import { storeInitialGeneratedRecords } from '../../../helpers/ledgrer-storage.helper.js';
import { generateMiscExpensesLedger } from '../../../helpers/misc-expenses-ledger.helper.js';
import { ledgerProtoToRecordsConverter } from '../../../helpers/utils.helper.js';
export const BANK_DEPOSITS_REVALUATION_LEDGER_DESCRIPTION = 'Bank deposits revaluation of currency';
export const generateLedgerRecordsForBankDepositsRevaluation = async (charge, { insertLedgerRecordsIfNotExists }, context, info) => {
    try {
        const { injector } = context;
        if (!charge.user_description) {
            return {
                __typename: 'CommonError',
                message: `Bank deposits revaluation charge must include user description with designated year`,
            };
        }
        const { defaultLocalCurrency, general: { taxCategories: { exchangeRevaluationTaxCategoryId }, }, bankDeposits: { bankDepositBusinessId }, } = await injector.get(AdminContextProvider).getVerifiedAdminContext();
        if (!bankDepositBusinessId) {
            return {
                __typename: 'CommonError',
                message: `Bank deposits business is not set`,
            };
        }
        // get revaluation date - search for "yyyy-mm-dd" in description
        const dateRegex = /\b(\d{4})\b/;
        const matches = charge.user_description.match(dateRegex);
        if (!matches?.length) {
            return {
                __typename: 'CommonError',
                message: `Bank deposits revaluation charge description must include full year`,
            };
        }
        const stringYear = matches[0];
        const year = Number(stringYear);
        if (Number.isNaN(year) || year < 2000 || year > new Date().getFullYear()) {
            return {
                __typename: 'CommonError',
                message: `Bank deposits revaluation charge description must include valid year (2000 - current year)`,
            };
        }
        const revaluationDate = `${year}-12-31`;
        const cumulativeDate = dateToTimelessDateString(sub(new Date(revaluationDate), { days: 1 }));
        const bankDepositsCumulativeBalance = await businessTransactionsSumFromLedgerRecords({}, {
            filters: {
                ownerIds: [charge.owner_id],
                businessIDs: [bankDepositBusinessId],
                toDate: cumulativeDate,
                includeRevaluation: false,
            },
        }, context, info);
        if (!('businessTransactionsSum' in bankDepositsCumulativeBalance) ||
            bankDepositsCumulativeBalance.businessTransactionsSum.length === 0) {
            throw new GraphQLError('Failed to get accounts transaction-based balance');
        }
        const bankDepositsBalance = await bankDepositsCumulativeBalance.businessTransactionsSum[0];
        const currencies = Object.entries(bankDepositsBalance)
            .filter(([key, value]) => Object.values(Currency).includes(key) &&
            (value.total !== 0 ||
                value.debit !== 0 ||
                value.credit !== 0))
            .map(([key]) => key);
        const exchangeRates = new Map();
        await Promise.all(currencies.map(currency => injector
            .get(ExchangeProvider)
            .getExchangeRates(currency, defaultLocalCurrency, new Date(revaluationDate))
            .then(rates => exchangeRates.set(currency, rates))));
        const errors = new Set();
        const ledgerEntries = [];
        const currenciesLedgerPromise = Object.entries(bankDepositsBalance).map(async ([currency, sum]) => {
            if (!currencies.includes(currency) || currency === defaultLocalCurrency) {
                return;
            }
            const rate = exchangeRates.get(formatCurrency(currency));
            if (!rate) {
                errors.add(`No exchange rate found for date ${revaluationDate}, currency "${currency}"`);
                return;
            }
            const cumulativeLocalBalance = bankDepositsBalance[defaultLocalCurrency].total;
            const cumulativeForeignBalance = sum.total;
            const revaluationDiff = cumulativeLocalBalance - cumulativeForeignBalance * rate;
            if (Math.abs(revaluationDiff) < 0.005) {
                return;
            }
            const isCreditorCounterparty = revaluationDiff < 0;
            const ledgerEntry = {
                id: EMPTY_UUID,
                invoiceDate: new Date(revaluationDate),
                valueDate: new Date(revaluationDate),
                currency: defaultLocalCurrency,
                isCreditorCounterparty,
                ...(isCreditorCounterparty
                    ? {
                        creditAccountID1: bankDepositBusinessId,
                        debitAccountID1: exchangeRevaluationTaxCategoryId,
                    }
                    : {
                        creditAccountID1: exchangeRevaluationTaxCategoryId,
                        debitAccountID1: bankDepositBusinessId,
                    }),
                localCurrencyCreditAmount1: Math.abs(revaluationDiff),
                localCurrencyDebitAmount1: Math.abs(revaluationDiff),
                description: `${BANK_DEPOSITS_REVALUATION_LEDGER_DESCRIPTION} "${currency}"`,
                ownerId: charge.owner_id,
                chargeId: charge.id,
                currencyRate: rate,
            };
            ledgerEntries.push(ledgerEntry);
        });
        // generate ledger from misc expenses
        const expensesLedgerPromise = generateMiscExpensesLedger(charge, injector).then(entries => {
            entries.map(entry => {
                entry.ownerId = charge.owner_id;
                ledgerEntries.push(entry);
            });
        });
        await Promise.all([expensesLedgerPromise, ...currenciesLedgerPromise]);
        if (insertLedgerRecordsIfNotExists) {
            await storeInitialGeneratedRecords(charge.id, ledgerEntries, injector);
        }
        return {
            records: ledgerProtoToRecordsConverter(ledgerEntries),
            charge,
            balance: {
                isBalanced: true,
                unbalancedEntities: [],
                balanceSum: 0,
                financialEntities: [],
            },
            errors: Array.from(errors),
        };
    }
    catch (e) {
        return {
            __typename: 'CommonError',
            message: `Failed to generate ledger records for charge ID="${charge.id}"\n${e}`,
        };
    }
};
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