<?php

/**
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Chill\CalendarBundle\Export\Aggregator;

use Chill\CalendarBundle\Export\Declarations;
use Chill\CalendarBundle\Repository\CancelReasonRepository;
use Chill\MainBundle\Export\AggregatorInterface;
use Chill\MainBundle\Templating\TranslatableStringHelper;
use Closure;
use Doctrine\ORM\QueryBuilder;
use Symfony\Component\Form\FormBuilderInterface;
use function in_array;

class CancelReasonAggregator implements AggregatorInterface
{
    private CancelReasonRepository $cancelReasonRepository;

    private TranslatableStringHelper $translatableStringHelper;

    public function __construct(
        CancelReasonRepository $cancelReasonRepository,
        TranslatableStringHelper $translatableStringHelper
    ) {
        $this->cancelReasonRepository = $cancelReasonRepository;
        $this->translatableStringHelper = $translatableStringHelper;
    }

    public function addRole(): ?string
    {
        return null;
    }

    public function alterQuery(QueryBuilder $qb, $data)
    {
        // TODO: still needs to take into account appointments without a cancel reason somehow
        if (!in_array('calcancel', $qb->getAllAliases(), true)) {
            $qb->join('cal.cancelReason', 'calcancel');
        }

        $qb->addSelect('IDENTITY(cal.cancelReason) as cancel_reason_aggregator');

        $groupBy = $qb->getDQLPart('groupBy');

        if (!empty($groupBy)) {
            $qb->addGroupBy('cancel_reason_aggregator');
        } else {
            $qb->groupBy('cancel_reason_aggregator');
        }
    }

    public function applyOn(): string
    {
        return Declarations::CALENDAR_TYPE;
    }

    public function buildForm(FormBuilderInterface $builder)
    {
        // no form
    }

    public function getLabels($key, array $values, $data): Closure
    {
        return function ($value): string {
            if ('_header' === $value) {
                return 'Cancel reason';
            }

            $j = $this->cancelReasonRepository->find($value);

            return $this->translatableStringHelper->localize(
                $j->getName()
            );
        };
    }

    public function getQueryKeys($data): array
    {
        return ['cancel_reason_aggregator'];
    }

    public function getTitle(): string
    {
        return 'Group appointments by cancel reason';
    }
}