<?php
/**
 * PiggyBankEventTransformer.php
 * Copyright (c) 2018 thegrumpydictator@gmail.com
 *
 * This file is part of Firefly III.
 *
 * Firefly III is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Firefly III 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace FireflyIII\Transformers;


use FireflyIII\Models\PiggyBankEvent;
use FireflyIII\Repositories\Account\AccountRepositoryInterface;
use FireflyIII\Repositories\Currency\CurrencyRepositoryInterface;
use FireflyIII\Repositories\PiggyBank\PiggyBankRepositoryInterface;
use Log;

/**
 * Class PiggyBankEventTransformer
 */
class PiggyBankEventTransformer extends AbstractTransformer
{
    /** @var CurrencyRepositoryInterface */
    private $currencyRepos;
    /** @var PiggyBankRepositoryInterface */
    private $piggyRepos;
    /** @var AccountRepositoryInterface */
    private $repository;

    /**
     * PiggyBankEventTransformer constructor.
     *
     * @codeCoverageIgnore
     */
    public function __construct()
    {
        $this->repository    = app(AccountRepositoryInterface::class);
        $this->currencyRepos = app(CurrencyRepositoryInterface::class);
        $this->piggyRepos    = app(PiggyBankRepositoryInterface::class);
        if ('testing' === config('app.env')) {
            Log::warning(sprintf('%s should not be instantiated in the TEST environment!', get_class($this)));
        }
    }

    /**
     * Convert piggy bank event.
     *
     * @param PiggyBankEvent $event
     *
     * @return array
     */
    public function transform(PiggyBankEvent $event): array
    {
        // get account linked to piggy bank
        $account = $event->piggyBank->account;

        // set up repositories.
        $this->repository->setUser($account->user);
        $this->currencyRepos->setUser($account->user);
        $this->piggyRepos->setUser($account->user);

        // get associated currency or fall back to the default:
        // TODO we can use getAccountCurrency() instead
        $currencyId = (int)$this->repository->getMetaValue($account, 'currency_id');
        $currency   = $this->currencyRepos->findNull($currencyId);
        if (null === $currency) {
            $currency = app('amount')->getDefaultCurrencyByUser($account->user);
        }

        // get associated journal and transaction, if any:
        $journalId = (int)$event->transaction_journal_id;

        $data = [
            'id'                      => (int)$event->id,
            'created_at'              => $event->created_at->toAtomString(),
            'updated_at'              => $event->updated_at->toAtomString(),
            'amount'                  => round($event->amount, $currency->decimal_places),
            'currency_id'             => $currency->id,
            'currency_code'           => $currency->code,
            'currency_symbol'         => $currency->symbol,
            'currency_decimal_places' => $currency->decimal_places,
            'transaction_journal_id'  => $journalId,
            'links'                   => [
                [
                    'rel' => 'self',
                    'uri' => '/piggy_bank_events/' . $event->id,
                ],
            ],
        ];

        return $data;
    }

}