<?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\Serializer\Normalizer;

use Chill\MainBundle\Entity\Center;
use Chill\MainBundle\Security\Resolver\CenterResolverManagerInterface;
use Chill\MainBundle\Templating\Entity\ChillEntityRenderExtension;
use Chill\PersonBundle\Entity\Person;
use Chill\PersonBundle\Entity\PersonAltName;
use Chill\PersonBundle\Repository\PersonRepository;
use DateTime;
use DateTimeImmutable;
use Doctrine\Common\Collections\Collection;
use Symfony\Component\Serializer\Exception\UnexpectedValueException;
use Symfony\Component\Serializer\Normalizer\DenormalizerAwareInterface;
use Symfony\Component\Serializer\Normalizer\DenormalizerAwareTrait;
use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface;
use Symfony\Component\Serializer\Normalizer\NormalizerAwareTrait;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
use Symfony\Component\Serializer\Normalizer\ObjectToPopulateTrait;
use function array_key_exists;

/**
 * Serialize a Person entity.
 */
class PersonJsonNormalizer implements
    DenormalizerAwareInterface,
    DenormalizerInterface,
    NormalizerAwareInterface,
    NormalizerInterface
{
    use DenormalizerAwareTrait;
    use NormalizerAwareTrait;
    use ObjectToPopulateTrait;

    private CenterResolverManagerInterface $centerResolverManager;

    private ChillEntityRenderExtension $render;

    private PersonRepository $repository;

    public function __construct(
        ChillEntityRenderExtension $render,
        PersonRepository $repository,
        CenterResolverManagerInterface $centerResolverManager
    ) {
        $this->render = $render;
        $this->repository = $repository;
        $this->centerResolverManager = $centerResolverManager;
    }

    public function denormalize($data, $type, $format = null, array $context = [])
    {
        $person = $this->extractObjectToPopulate($type, $context);

        if (array_key_exists('id', $data) && null === $person) {
            $person = $this->repository->find($data['id']);

            if (null === $person) {
                throw new UnexpectedValueException("The person with id \"{$data['id']}\" does " .
                    'not exists');
            }
            // currently, not allowed to update a person through api
            // if instantiated with id
            return $person;
        }

        if (null === $person) {
            $person = new Person();
        }

        $fields = [
            'firstName',
            'lastName',
            'phonenumber',
            'mobilenumber',
            'gender',
            'birthdate',
            'deathdate',
            'center',
            'altNames',
        ];

        $fields = array_filter(
            $fields,
            static fn (string $field): bool => array_key_exists($field, $data)
        );

        foreach ($fields as $item) {
            switch ($item) {
                case 'firstName':
                    $person->setFirstName($data[$item]);

                    break;

                case 'lastName':
                    $person->setLastName($data[$item]);

                    break;

                case 'phonenumber':
                    $person->setPhonenumber($data[$item]);

                    break;

                case 'mobilenumber':
                    $person->setMobilenumber($data[$item]);

                    break;

                case 'gender':
                    $person->setGender($data[$item]);

                    break;

                case 'birthdate':
                    $object = $this->denormalizer->denormalize($data[$item], DateTime::class, $format, $context);

                    $person->setBirthdate($object);

                    break;

                case 'deathdate':
                    $object = $this->denormalizer->denormalize($data[$item], DateTimeImmutable::class, $format, $context);

                    $person->setDeathdate($object);

                    break;

                case 'center':
                    $object = $this->denormalizer->denormalize($data[$item], Center::class, $format, $context);
                    $person->setCenter($object);

                    break;

                case 'altNames':
                    foreach ($data[$item] as $altName) {
                        $oldAltName = $person
                            ->getAltNames()
                            ->filter(static fn (PersonAltName $n): bool => $n->getKey() === $altName['key'])->first();

                        if (false === $oldAltName) {
                            $newAltName = new PersonAltName();
                            $newAltName->setKey($altName['key']);
                            $newAltName->setLabel($altName['label']);
                            $person->addAltName($newAltName);
                        } else {
                            $oldAltName->setLabel($altName['label']);
                        }
                    }

                    break;
            }
        }

        return $person;
    }

    /**
     * @param Person $person
     * @param string|null $format
     */
    public function normalize($person, $format = null, array $context = [])
    {
        $household = $person->getCurrentHousehold();

        return [
            'type' => 'person',
            'id' => $person->getId(),
            'text' => $this->render->renderString($person),
            'firstName' => $person->getFirstName(),
            'lastName' => $person->getLastName(),
            'birthdate' => $this->normalizer->normalize($person->getBirthdate(), $format, $context),
            'deathdate' => $this->normalizer->normalize($person->getDeathdate(), $format, $context),
            'centers' => $this->normalizer->normalize($this->centerResolverManager->resolveCenters($person), $format, $context),
            'phonenumber' => $person->getPhonenumber(),
            'mobilenumber' => $person->getMobilenumber(),
            'altNames' => $this->normalizeAltNames($person->getAltNames()),
            'gender' => $person->getGender(),
            'current_household_address' => $this->normalizer->normalize($person->getCurrentHouseholdAddress(), $format, $context),
            'current_household_id' => $household ? $this->normalizer->normalize($household->getId(), $format, $context) : null,
        ];
    }

    public function supportsDenormalization($data, $type, $format = null)
    {
        return Person::class === $type && 'person' === ($data['type'] ?? null);
    }

    public function supportsNormalization($data, $format = null): bool
    {
        return $data instanceof Person && 'json' === $format;
    }

    /**
     * @param Collection<array-key, PersonAltName> $altNames
     *
     * @return array<array-key, array<string, string>>
     */
    protected function normalizeAltNames(Collection $altNames): array
    {
        return $altNames
            ->map(
                static function (PersonAltName $personAltName): array {
                    return [
                        'key' => $personAltName->getKey(),
                        'label' => $personAltName->getLabel(),
                    ];
                }
            )
            ->toArray();
    }
}