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firefly-iii/app/Api/V1/Controllers/Chart/BudgetController.php

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9.6 KiB
PHP

<?php
/*
* BudgetController.php
* Copyright (c) 2023 james@firefly-iii.org
*
* This file is part of Firefly III (https://github.com/firefly-iii).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace FireflyIII\Api\V1\Controllers\Chart;
use Carbon\Carbon;
use FireflyIII\Api\V1\Controllers\Controller;
use FireflyIII\Api\V1\Requests\Generic\DateRequest;
use FireflyIII\Enums\UserRoleEnum;
use FireflyIII\Exceptions\FireflyException;
use FireflyIII\Models\Budget;
use FireflyIII\Models\BudgetLimit;
use FireflyIII\Models\TransactionCurrency;
use FireflyIII\Repositories\Budget\BudgetLimitRepositoryInterface;
use FireflyIII\Repositories\Budget\BudgetRepositoryInterface;
use FireflyIII\Repositories\Budget\OperationsRepositoryInterface;
use FireflyIII\Support\Http\Api\CleansChartData;
use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Log;
/**
* Class BudgetController
*/
class BudgetController extends Controller
{
use CleansChartData;
use ValidatesUserGroupTrait;
protected array $acceptedRoles = [UserRoleEnum::READ_ONLY];
protected OperationsRepositoryInterface $opsRepository;
private BudgetLimitRepositoryInterface $blRepository;
private array $currencies = [];
private TransactionCurrency $currency;
private BudgetRepositoryInterface $repository;
public function __construct()
{
parent::__construct();
$this->middleware(
function ($request, $next) {
$this->repository = app(BudgetRepositoryInterface::class);
$this->blRepository = app(BudgetLimitRepositoryInterface::class);
$this->opsRepository = app(OperationsRepositoryInterface::class);
$userGroup = $this->validateUserGroup($request);
$this->repository->setUserGroup($userGroup);
$this->opsRepository->setUserGroup($userGroup);
$this->blRepository->setUserGroup($userGroup);
return $next($request);
}
);
}
/**
* TODO see autocomplete/accountcontroller
*/
public function dashboard(DateRequest $request): JsonResponse
{
$params = $request->getAll();
/** @var Carbon $start */
$start = $params['start'];
/** @var Carbon $end */
$end = $params['end'];
// code from FrontpageChartGenerator, but not in separate class
$budgets = $this->repository->getActiveBudgets();
$data = [];
/** @var Budget $budget */
foreach ($budgets as $budget) {
// could return multiple arrays, so merge.
$data = array_merge($data, $this->processBudget($budget, $start, $end));
}
return response()->json($this->clean($data));
}
/**
* @throws FireflyException
*/
private function processBudget(Budget $budget, Carbon $start, Carbon $end): array
{
// get all limits:
$limits = $this->blRepository->getBudgetLimits($budget, $start, $end);
$rows = [];
// if no limits
if (0 === $limits->count()) {
// return as a single item in an array
$rows = $this->noBudgetLimits($budget, $start, $end);
}
if ($limits->count() > 0) {
$rows = $this->budgetLimits($budget, $limits);
}
// is always an array
$return = [];
foreach ($rows as $row) {
$current = [
'label' => $budget->name,
'currency_id' => (string) $row['currency_id'],
'currency_code' => $row['currency_code'],
'currency_name' => $row['currency_name'],
'currency_decimal_places' => $row['currency_decimal_places'],
'period' => null,
'start' => $row['start'],
'end' => $row['end'],
'entries' => [
'spent' => $row['spent'],
'left' => $row['left'],
'overspent' => $row['overspent'],
],
];
$return[] = $current;
}
return $return;
}
/**
* When no budget limits are present, the expenses of the whole period are collected and grouped.
* This is grouped per currency. Because there is no limit set, "left to spend" and "overspent" are empty.
*
* @throws FireflyException
*/
private function noBudgetLimits(Budget $budget, Carbon $start, Carbon $end): array
{
$spent = $this->opsRepository->listExpenses($start, $end, null, new Collection([$budget]));
return $this->processExpenses($budget->id, $spent, $start, $end);
}
/**
* Shared between the "noBudgetLimits" function and "processLimit". Will take a single set of expenses and return
* its info.
*
* @param array<int, array<int, string>> $array
*
* @throws FireflyException
*/
private function processExpenses(int $budgetId, array $array, Carbon $start, Carbon $end): array
{
$return = [];
/**
* This array contains the expenses in this budget. Grouped per currency.
* The grouping is on the main currency only.
*
* @var int $currencyId
* @var array $block
*/
foreach ($array as $currencyId => $block) {
$this->currencies[$currencyId] ??= TransactionCurrency::find($currencyId);
$return[$currencyId] ??= [
'currency_id' => (string) $currencyId,
'currency_code' => $block['currency_code'],
'currency_name' => $block['currency_name'],
'currency_symbol' => $block['currency_symbol'],
'currency_decimal_places' => (int) $block['currency_decimal_places'],
'start' => $start->toAtomString(),
'end' => $end->toAtomString(),
'spent' => '0',
'left' => '0',
'overspent' => '0',
];
$currentBudgetArray = $block['budgets'][$budgetId];
// var_dump($return);
/** @var array $journal */
foreach ($currentBudgetArray['transaction_journals'] as $journal) {
$return[$currencyId]['spent'] = bcadd($return[$currencyId]['spent'], (string) $journal['amount']);
}
}
return $return;
}
/**
* Function that processes each budget limit (per budget).
*
* If you have a budget limit in EUR, only transactions in EUR will be considered.
* If you have a budget limit in GBP, only transactions in GBP will be considered.
*
* If you have a budget limit in EUR, and a transaction in GBP, it will not be considered for the EUR budget limit.
*
* @throws FireflyException
*/
private function budgetLimits(Budget $budget, Collection $limits): array
{
Log::debug(sprintf('Now in budgetLimits(#%d)', $budget->id));
$data = [];
/** @var BudgetLimit $limit */
foreach ($limits as $limit) {
$data = array_merge($data, $this->processLimit($budget, $limit));
}
return $data;
}
/**
* @throws FireflyException
*/
private function processLimit(Budget $budget, BudgetLimit $limit): array
{
Log::debug(sprintf('Created new ExchangeRateConverter in %s', __METHOD__));
$end = clone $limit->end_date;
$end->endOfDay();
$spent = $this->opsRepository->listExpenses($limit->start_date, $end, null, new Collection([$budget]));
$limitCurrencyId = $limit->transaction_currency_id;
/** @var array $entry */
// only spent the entry where the entry's currency matches the budget limit's currency
// so $filtered will only have 1 or 0 entries
$filtered = array_filter($spent, function ($entry) use ($limitCurrencyId) {
return $entry['currency_id'] === $limitCurrencyId;
});
$result = $this->processExpenses($budget->id, $filtered, $limit->start_date, $end);
if (1 === count($result)) {
$compare = bccomp($limit->amount, (string) app('steam')->positive($result[$limitCurrencyId]['spent']));
if (1 === $compare) {
// convert this amount into the native currency:
$result[$limitCurrencyId]['left'] = bcadd($limit->amount, (string) $result[$limitCurrencyId]['spent']);
}
if ($compare <= 0) {
$result[$limitCurrencyId]['overspent'] = app('steam')->positive(bcadd($limit->amount, (string) $result[$limitCurrencyId]['spent']));
}
}
return $result;
}
}