<?php

namespace Chill\CalendarBundle\Export\Aggregator;

use Chill\CalendarBundle\Export\Declarations;
use Chill\MainBundle\Export\AggregatorInterface;
use Chill\MainBundle\Repository\UserJobRepository;
use Chill\MainBundle\Templating\TranslatableStringHelper;
use Doctrine\ORM\QueryBuilder;
use Symfony\Component\Form\FormBuilderInterface;

final class JobAggregator implements AggregatorInterface
{
    private UserJobRepository $jobRepository;

    private TranslatableStringHelper $translatableStringHelper;

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

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

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

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

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

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

    public function getTitle(): string
    {
        return 'Group by agent job';
    }

    public function addRole()
    {
        return null;
    }

    public function alterQuery(QueryBuilder $qb, $data)
    {
        $qb->join('cal.user', 'u');

        $qb->addSelect('IDENTITY(u.userJob) as job_aggregator');

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

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

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