<?php
/**
 * DeleteZeroAmount.php
 * Copyright (c) 2020 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\Console\Commands\Correction;

use Exception;
use FireflyIII\Models\Transaction;
use FireflyIII\Models\TransactionJournal;
use Illuminate\Console\Command;
use Illuminate\Database\QueryException;

/**
 * Class DeleteZeroAmount
 */
class DeleteZeroAmount extends Command
{
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Delete transactions with zero amount.';
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'firefly-iii:delete-zero-amount';

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle(): int
    {
        $start    = microtime(true);
        $set      = Transaction::where('amount', 0)->get(['transaction_journal_id'])->pluck('transaction_journal_id')->toArray();
        $set      = array_unique($set);
        $journals = TransactionJournal::whereIn('id', $set)->get();
        /** @var TransactionJournal $journal */
        foreach ($journals as $journal) {
            $this->info(sprintf('Deleted transaction journal #%d because the amount is zero (0.00).', $journal->id));
            try {
                $journal->delete();
            } catch (QueryException $e) {
                $this->line($e->getMessage());
            }

            Transaction::where('transaction_journal_id', $journal->id)->delete();
        }
        if (0 === $journals->count()) {
            $this->info('No zero-amount transaction journals.');
        }

        $end = round(microtime(true) - $start, 2);
        $this->info(sprintf('Verified zero-amount integrity in %s seconds', $end));

        return 0;
    }
}