<?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\PersonBundle\Search;

use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
use Chill\PersonBundle\Entity\Person;
use Chill\PersonBundle\Repository\PersonNotDuplicateRepository;
use Chill\PersonBundle\Security\Authorization\PersonVoter;
use Chill\PersonBundle\Templating\Entity\PersonRender;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Role\Role;
use function count;

class SimilarPersonMatcher
{
    public const SIMILAR_SEARCH_ORDER_BY_ALPHABETICAL = 'alphabetical';

    public const SIMILAR_SEARCH_ORDER_BY_SIMILARITY = 'similarity';

    /**
     * @var AuthorizationHelper
     */
    protected $authorizationHelper;

    /**
     * @var EntityManagerInterface
     */
    protected $em;

    protected PersonNotDuplicateRepository $personNotDuplicateRepository;

    protected PersonRender $personRender;

    /**
     * @var TokenStorageInterface
     */
    protected $tokenStorage;

    public function __construct(
        EntityManagerInterface $em,
        AuthorizationHelper $authorizationHelper,
        TokenStorageInterface $tokenStorage,
        PersonNotDuplicateRepository $personNotDuplicateRepository,
        PersonRender $personRender
    ) {
        $this->em = $em;
        $this->authorizationHelper = $authorizationHelper;
        $this->tokenStorage = $tokenStorage;
        $this->personNotDuplicateRepository = $personNotDuplicateRepository;
        $this->personRender = $personRender;
    }

    public function matchPerson(
        Person $person,
        float $precision = 0.15,
        string $orderBy = self::SIMILAR_SEARCH_ORDER_BY_SIMILARITY,
        bool $addYearComparison = false
    ) {
        $centers = $this->authorizationHelper->getReachableCenters(
            $this->tokenStorage->getToken()->getUser(),
            new Role(PersonVoter::SEE)
        );
        $query = $this->em->createQuery();

        $dql = 'SELECT p from ChillPersonBundle:Person p '
            . ' WHERE ('
            . '   SIMILARITY(p.fullnameCanonical, UNACCENT(LOWER(:fullName))) >= :precision '
            . ' ) '
            . ' AND p.center IN (:centers)';

        if ($person->getId() !== null) {
            $dql .= ' AND p.id != :personId ';
            $notDuplicatePersons = $this->personNotDuplicateRepository->findNotDuplicatePerson($person);

            $query->setParameter('personId', $person->getId());

            if (count($notDuplicatePersons)) {
                $dql .= ' AND p.id not in (:notDuplicatePersons)';
                $query->setParameter('notDuplicatePersons', $notDuplicatePersons);
            }
        }

        switch ($orderBy) {
            case self::SIMILAR_SEARCH_ORDER_BY_ALPHABETICAL:
                $dql .= ' ORDER BY p.fullnameCanonical ASC ';

                break;

            case self::SIMILAR_SEARCH_ORDER_BY_SIMILARITY:
            default:
                $dql .= ' ORDER BY SIMILARITY(p.fullnameCanonical, UNACCENT(LOWER(:fullName))) DESC ';
        }

        $query = $query
            ->setDQL($dql)
            ->setParameter('fullName', $this->personRender->renderString($person, []))
            ->setParameter('centers', $centers)
            ->setParameter('precision', $precision);

        return $query->getResult();
    }
}