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296 lines
13 KiB
PHP
296 lines
13 KiB
PHP
<?php
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/*
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* AccountBalanceGrouped.php
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* Copyright (c) 2023 james@firefly-iii.org
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*
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* This file is part of Firefly III (https://github.com/firefly-iii).
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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declare(strict_types=1);
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namespace FireflyIII\Support\Http\Api;
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use Carbon\Carbon;
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use FireflyIII\Exceptions\FireflyException;
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use FireflyIII\Models\TransactionCurrency;
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use FireflyIII\Models\TransactionType;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Facades\Log;
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/**
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* Class AccountBalanceGrouped
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*/
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class AccountBalanceGrouped
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{
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private array $accountIds;
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private string $carbonFormat;
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private array $currencies = [];
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private array $data = [];
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private TransactionCurrency $default;
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private Carbon $end;
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private array $journals = [];
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private string $preferredRange;
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private Carbon $start;
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private ExchangeRateConverter $converter;
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public function __construct()
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{
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$this->accountIds = [];
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$this->converter = app(ExchangeRateConverter::class);
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}
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/**
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* Convert the given input to a chart compatible array.
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*/
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public function convertToChartData(): array
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{
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$chartData = [];
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// loop2: loop this data, make chart bars for each currency:
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/** @var array $currency */
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foreach ($this->data as $currency) {
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// income and expense array prepped:
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$income = [
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'label' => 'earned',
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'currency_id' => (string) $currency['currency_id'],
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'currency_symbol' => $currency['currency_symbol'],
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'currency_code' => $currency['currency_code'],
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'currency_decimal_places' => $currency['currency_decimal_places'],
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'native_currency_id' => (string) $currency['native_currency_id'],
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'native_currency_symbol' => $currency['native_currency_symbol'],
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'native_currency_code' => $currency['native_currency_code'],
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'native_currency_decimal_places' => $currency['native_currency_decimal_places'],
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'date' => $this->start->toAtomString(),
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'start' => $this->start->toAtomString(),
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'end' => $this->end->toAtomString(),
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'period' => $this->preferredRange,
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'entries' => [],
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'native_entries' => [],
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];
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$expense = [
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'label' => 'spent',
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'currency_id' => (string) $currency['currency_id'],
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'currency_symbol' => $currency['currency_symbol'],
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'currency_code' => $currency['currency_code'],
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'currency_decimal_places' => $currency['currency_decimal_places'],
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'native_currency_id' => (string) $currency['native_currency_id'],
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'native_currency_symbol' => $currency['native_currency_symbol'],
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'native_currency_code' => $currency['native_currency_code'],
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'native_currency_decimal_places' => $currency['native_currency_decimal_places'],
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'date' => $this->start->toAtomString(),
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'start' => $this->start->toAtomString(),
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'end' => $this->end->toAtomString(),
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'period' => $this->preferredRange,
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'entries' => [],
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'native_entries' => [],
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];
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// loop all possible periods between $start and $end, and add them to the correct dataset.
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$currentStart = clone $this->start;
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while ($currentStart <= $this->end) {
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$key = $currentStart->format($this->carbonFormat);
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$label = $currentStart->toAtomString();
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// normal entries
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$income['entries'][$label] = app('steam')->bcround($currency[$key]['earned'] ?? '0', $currency['currency_decimal_places']);
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$expense['entries'][$label] = app('steam')->bcround($currency[$key]['spent'] ?? '0', $currency['currency_decimal_places']);
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// converted entries
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$income['native_entries'][$label] = app('steam')->bcround($currency[$key]['native_earned'] ?? '0', $currency['native_currency_decimal_places']);
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$expense['native_entries'][$label] = app('steam')->bcround($currency[$key]['native_spent'] ?? '0', $currency['native_currency_decimal_places']);
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// next loop
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$currentStart = app('navigation')->addPeriod($currentStart, $this->preferredRange, 0);
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}
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$chartData[] = $income;
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$chartData[] = $expense;
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}
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return $chartData;
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}
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/**
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* Group the given journals by currency and then by period.
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* If they are part of a set of accounts this basically means it's balance chart.
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*/
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public function groupByCurrencyAndPeriod(): void
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{
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Log::debug(sprintf('Created new ExchangeRateConverter in %s', __METHOD__));
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$converter = new ExchangeRateConverter();
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// loop. group by currency and by period.
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/** @var array $journal */
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foreach ($this->journals as $journal) {
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$this->processJournal($journal);
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}
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$converter->summarize();
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}
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public function setAccounts(Collection $accounts): void
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{
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$this->accountIds = $accounts->pluck('id')->toArray();
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}
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public function setDefault(TransactionCurrency $default): void
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{
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$this->default = $default;
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$defaultCurrencyId = $default->id;
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$this->currencies = [$default->id => $default]; // currency cache
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$this->data[$defaultCurrencyId] = [
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'currency_id' => (string) $defaultCurrencyId,
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'currency_symbol' => $default->symbol,
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'currency_code' => $default->code,
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'currency_name' => $default->name,
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'currency_decimal_places' => $default->decimal_places,
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'native_currency_id' => (string) $defaultCurrencyId,
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'native_currency_symbol' => $default->symbol,
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'native_currency_code' => $default->code,
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'native_currency_name' => $default->name,
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'native_currency_decimal_places' => $default->decimal_places,
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];
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}
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public function setEnd(Carbon $end): void
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{
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$this->end = $end;
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}
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public function setJournals(array $journals): void
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{
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$this->journals = $journals;
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}
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public function setPreferredRange(string $preferredRange): void
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{
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$this->preferredRange = $preferredRange;
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$this->carbonFormat = app('navigation')->preferredCarbonFormatByPeriod($preferredRange);
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}
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public function setStart(Carbon $start): void
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{
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$this->start = $start;
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}
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private function processJournal(array $journal): void
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{
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// format the date according to the period
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$period = $journal['date']->format($this->carbonFormat);
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$currencyId = (int) $journal['currency_id'];
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$currency = $this->findCurrency($currencyId);
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// set the array with monetary info, if it does not exist.
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$this->createDefaultDataEntry($journal);
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// set the array (in monetary info) with spent/earned in this $period, if it does not exist.
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$this->createDefaultPeriodEntry($journal);
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// is this journal's amount in- our outgoing?
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$key = $this->getDataKey($journal);
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$amount = 'spent' === $key ? app('steam')->negative($journal['amount']) : app('steam')->positive($journal['amount']);
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// get conversion rate
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$rate = $this->getRate($currency, $journal['date']);
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$amountConverted = bcmul($amount, $rate);
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// perhaps transaction already has the foreign amount in the native currency.
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if ((int) $journal['foreign_currency_id'] === $this->default->id) {
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$amountConverted = $journal['foreign_amount'] ?? '0';
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$amountConverted = 'earned' === $key ? app('steam')->positive($amountConverted) : app('steam')->negative($amountConverted);
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}
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// add normal entry
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$this->data[$currencyId][$period][$key] = bcadd($this->data[$currencyId][$period][$key], $amount);
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// add converted entry
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$convertedKey = sprintf('native_%s', $key);
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$this->data[$currencyId][$period][$convertedKey] = bcadd($this->data[$currencyId][$period][$convertedKey], $amountConverted);
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}
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private function findCurrency(int $currencyId): TransactionCurrency
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{
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if (array_key_exists($currencyId, $this->currencies)) {
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return $this->currencies[$currencyId];
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}
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$this->currencies[$currencyId] = TransactionCurrency::find($currencyId);
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return $this->currencies[$currencyId];
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}
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private function createDefaultDataEntry(array $journal): void
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{
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$currencyId = (int) $journal['currency_id'];
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$this->data[$currencyId] ??= [
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'currency_id' => (string) $currencyId,
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'currency_symbol' => $journal['currency_symbol'],
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'currency_code' => $journal['currency_code'],
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'currency_name' => $journal['currency_name'],
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'currency_decimal_places' => $journal['currency_decimal_places'],
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// native currency info (could be the same)
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'native_currency_id' => (string) $this->default->id,
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'native_currency_code' => $this->default->code,
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'native_currency_symbol' => $this->default->symbol,
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'native_currency_decimal_places' => $this->default->decimal_places,
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];
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}
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private function createDefaultPeriodEntry(array $journal): void
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{
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$currencyId = (int) $journal['currency_id'];
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$period = $journal['date']->format($this->carbonFormat);
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$this->data[$currencyId][$period] ??= [
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'period' => $period,
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'spent' => '0',
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'earned' => '0',
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'native_spent' => '0',
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'native_earned' => '0',
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];
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}
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private function getDataKey(array $journal): string
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{
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$key = 'spent';
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// deposit = incoming
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// transfer or reconcile or opening balance, and these accounts are the destination.
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if (
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TransactionType::DEPOSIT === $journal['transaction_type_type']
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|| (
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(
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TransactionType::TRANSFER === $journal['transaction_type_type']
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|| TransactionType::RECONCILIATION === $journal['transaction_type_type']
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|| TransactionType::OPENING_BALANCE === $journal['transaction_type_type']
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)
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&& in_array($journal['destination_account_id'], $this->accountIds, true)
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)
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) {
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$key = 'earned';
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}
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return $key;
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}
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private function getRate(TransactionCurrency $currency, Carbon $date): string
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{
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try {
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$rate = $this->converter->getCurrencyRate($currency, $this->default, $date);
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} catch (FireflyException $e) {
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app('log')->error($e->getMessage());
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$rate = '1';
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}
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return $rate;
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}
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}
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