<?php

declare(strict_types=1);

/*
 * 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.
 */

namespace Chill\PersonBundle\Service\DocGenerator;

use Chill\DocGeneratorBundle\Context\Exception\UnexpectedTypeException;
use Chill\DocGeneratorBundle\Entity\DocGeneratorTemplate;
use Chill\DocGeneratorBundle\Service\Context\BaseContextData;
use Chill\DocStoreBundle\Entity\DocumentCategory;
use Chill\DocStoreBundle\Entity\PersonDocument;
use Chill\DocStoreBundle\Entity\StoredObject;
use Chill\DocStoreBundle\Repository\DocumentCategoryRepository;
use Chill\DocStoreBundle\Security\Authorization\PersonDocumentVoter;
use Chill\MainBundle\Entity\Scope;
use Chill\MainBundle\Form\Type\ScopePickerType;
use Chill\MainBundle\Repository\ScopeRepositoryInterface;
use Chill\MainBundle\Security\Authorization\AuthorizationHelper;
use Chill\MainBundle\Security\Authorization\AuthorizationHelperInterface;
use Chill\MainBundle\Security\Resolver\CenterResolverManagerInterface;
use Chill\MainBundle\Templating\TranslatableStringHelperInterface;
use Chill\PersonBundle\Entity\Person;
use Chill\PersonBundle\Repository\PersonRepository;
use DateTime;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\EntityRepository;
use LogicException;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Security\Core\Security;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

use Symfony\Contracts\Translation\TranslatorInterface;
use function array_key_exists;
use function count;

final class PersonContext implements PersonContextInterface
{
    private AuthorizationHelperInterface $authorizationHelper;

    private BaseContextData $baseContextData;

    private CenterResolverManagerInterface $centerResolverManager;

    private DocumentCategoryRepository $documentCategoryRepository;

    private EntityManagerInterface $em;

    private NormalizerInterface $normalizer;

    private ScopeRepositoryInterface $scopeRepository;

    private Security $security;

    private bool $showScopes;

    private TranslatableStringHelperInterface $translatableStringHelper;

    private TranslatorInterface $translator;

    public function __construct(
        AuthorizationHelperInterface $authorizationHelper,
        BaseContextData $baseContextData,
        CenterResolverManagerInterface $centerResolverManager,
        DocumentCategoryRepository $documentCategoryRepository,
        EntityManagerInterface $em,
        NormalizerInterface $normalizer,
        ParameterBagInterface $parameterBag,
        ScopeRepositoryInterface $scopeRepository,
        Security $security,
        TranslatorInterface $translator,
        TranslatableStringHelperInterface $translatableStringHelper
    ) {
        $this->authorizationHelper = $authorizationHelper;
        $this->centerResolverManager = $centerResolverManager;
        $this->baseContextData = $baseContextData;
        $this->documentCategoryRepository = $documentCategoryRepository;
        $this->em = $em;
        $this->normalizer = $normalizer;
        $this->scopeRepository = $scopeRepository;
        $this->security = $security;
        $this->showScopes = $parameterBag->get('chill_main')['acl']['form_show_scopes'];
        $this->translator = $translator;
        $this->translatableStringHelper = $translatableStringHelper;
    }

    public function adminFormReverseTransform(array $data): array
    {
        if (array_key_exists('category', $data)) {
            $data['category'] = [
                'idInsideBundle' => $data['category']->getIdInsideBundle(),
                'bundleId' => $data['category']->getBundleId(),
            ];
        }

        return $data;
    }

    public function adminFormTransform(array $data): array
    {
        $r = [
            'mainPerson' => $data['mainPerson'] ?? false,
            'mainPersonLabel' => $data['mainPersonLabel'] ?? $this->translator->trans('docgen.Main person'),
        ];

        if (array_key_exists('category', $data)) {
            $r['category'] = array_key_exists('category', $data) ?
                $this->documentCategoryRepository->find($data['category']) : null;
        }

        return $r;
    }

    public function buildAdminForm(FormBuilderInterface $builder): void
    {
        $builder
            ->add('category', EntityType::class, [
                'placeholder' => 'Choose a document category',
                'class' => DocumentCategory::class,
                'query_builder' => static function (EntityRepository $er) {
                    return $er->createQueryBuilder('c')
                        ->where('c.documentClass = :docClass')
                        ->setParameter('docClass', PersonDocument::class);
                },
                'choice_label' => function ($entity = null) {
                    return $entity ? $this->translatableStringHelper->localize($entity->getName()) : '';
                },
                'required' => true,
            ]);
    }

    /**
     * @param Person $entity
     */
    public function buildPublicForm(FormBuilderInterface $builder, DocGeneratorTemplate $template, $entity): void
    {
        $builder->add('title', TextType::class, [
            'required' => true,
            'label' => 'docgen.Document title',
            'data' => $this->translatableStringHelper->localize($template->getName()),
        ]);

        if ($this->isScopeNecessary($entity)) {
            $builder->add('scope', ScopePickerType::class, [
                'center' => $this->centerResolverManager->resolveCenters($entity),
                'role' => PersonDocumentVoter::CREATE,
                'label' => 'Scope',
            ]);
        }
    }

    public function getData(DocGeneratorTemplate $template, $entity, array $contextGenerationData = []): array
    {
        if (!$entity instanceof Person) {
            throw new UnexpectedTypeException($entity, Person::class);
        }

        $data = [];
        $data = array_merge($data, $this->baseContextData->getData());
        $data['person'] = $this->normalizer->normalize($entity, 'docgen', [
            'docgen:expects' => Person::class,
            'groups' => ['docgen:read'],
            'docgen:person:with-household' => true,
            'docgen:person:with-relations' => true,
            'docgen:person:with-budget' => true,
        ]);

        return $data;
    }

    public function getDescription(): string
    {
        return 'docgen.A basic context for person';
    }

    public function getEntityClass(): string
    {
        return Person::class;
    }

    public function getFormData(DocGeneratorTemplate $template, $entity): array
    {
        return [
            'person' => $entity,
        ];
    }

    public static function getKey(): string
    {
        return self::class;
    }

    public function getName(): string
    {
        return 'docgen.Person basic';
    }

    public function hasAdminForm(): bool
    {
        return true;
    }

    /**
     * @param Person $entity
     */
    public function hasPublicForm(DocGeneratorTemplate $template, $entity): bool
    {
        return true;
    }

    /**
     * @param Person $entity
     */
    public function contextGenerationDataNormalize(DocGeneratorTemplate $template, $entity, array $data): array
    {
        $scope = $data['scope'] ?? null;

        return [
            'title' => $data['title'] ?? '',
            'scope_id' => $scope instanceof Scope ? $scope->getId() : null,
        ];
    }

    /**
     * @param Person $entity
     */
    public function contextGenerationDataDenormalize(DocGeneratorTemplate $template, $entity, array $data): array
    {
        if (!isset($data['scope'])) {
            $scope = null;
        } else {
            if (null === $scope = $this->scopeRepository->find($data['scope'])) {
                throw new \UnexpectedValueException('scope not found');
            }
        }

        return [
            'title' => $data['title'] ?? '',
            'scope' => $scope,
        ];
    }

    public function storeGenerated(DocGeneratorTemplate $template, StoredObject $storedObject, object $entity, array $contextGenerationData): void
    {
        $doc = new PersonDocument();
        $doc->setTemplate($template)
            ->setTitle(
                $contextGenerationData['title'] ?? $this->translatableStringHelper->localize($template->getName())
            )
            ->setDate(new DateTime())
            ->setDescription($this->translatableStringHelper->localize($template->getName()))
            ->setPerson($entity)
            ->setObject($storedObject);

        if (array_key_exists('category', $template->getOptions())) {
            $doc
                ->setCategory(
                    $this->documentCategoryRepository->find(
                        $template->getOptions()['category']
                    )
                );
        }

        if ($this->isScopeNecessary($entity)) {
            $doc->setScope($contextGenerationData['scope']);
        } elseif ($this->showScopes) {
            // in this case, it should have only one scope possible, we get it through AuthorizationHelper::getReachableScopes
            $scopes = $this->authorizationHelper->getReachableScopes(
                $this->security->getUser(),
                PersonDocumentVoter::CREATE,
                $this->centerResolverManager->resolveCenters($entity)
            );

            if (1 !== count($scopes)) {
                throw new LogicException('at this step, it should have only one scope');
            }

            $doc->setScope($scopes[0]);
        }

        $this->em->persist($doc);
    }

    private function isScopeNecessary(Person $person): bool
    {
        if ($this->showScopes && 1 < $this->authorizationHelper->getReachableScopes(
            $this->security->getUser(),
            PersonDocumentVoter::CREATE,
            $this->centerResolverManager->resolveCenters($person)
        )) {
            return true;
        }

        return false;
    }
}