<?php

namespace Akeneo\UserManagement\Component\Normalizer;

use Akeneo\UserManagement\Component\Model\Group;
use Akeneo\UserManagement\Component\Model\Role;
use Akeneo\UserManagement\Component\Model\UserInterface;
use Oro\Bundle\PimDataGridBundle\Repository\DatagridViewRepositoryInterface;
use Oro\Bundle\SecurityBundle\SecurityFacade;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface;
use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

/**
 * User normalizer
 *
 * @author    Filips Alpe <filips@akeneo.com>
 * @copyright 2015 Akeneo SAS (http://www.akeneo.com)
 * @license   http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
class UserNormalizer implements NormalizerInterface, CacheableSupportsMethodInterface
{
    private DateTimeNormalizer $dateTimeNormalizer;
    private NormalizerInterface $fileNormalizer;
    private SecurityFacade $securityFacade;
    private TokenStorageInterface $tokenStorage;
    private DatagridViewRepositoryInterface $datagridViewRepo;

    /** @var array */
    private $properties;
    protected array $supportedFormats = ['internal_api'];
    private array $userNormalizers;

    public function __construct(
        DateTimeNormalizer $dateTimeNormalizer,
        NormalizerInterface $fileNormalizer,
        SecurityFacade $securityFacade,
        TokenStorageInterface $tokenStorage,
        DatagridViewRepositoryInterface $datagridViewRepo,
        array $userNormalizers = [],
        string ...$properties
    ) {
        $this->dateTimeNormalizer = $dateTimeNormalizer;
        $this->fileNormalizer = $fileNormalizer;
        $this->securityFacade = $securityFacade;
        $this->tokenStorage = $tokenStorage;
        $this->datagridViewRepo = $datagridViewRepo;
        $this->properties = $properties;
        $this->userNormalizers = $userNormalizers;
    }

    /**
     * {@inheritdoc}
     *
     * @var UserInterface $user
     */
    public function normalize($user, $format = null, array $context = [])
    {
        $result = [
            'code'                      => $user->getUserIdentifier(), # Every Form Extension requires 'code' field.
            'enabled'                   => $user->isEnabled(),
            'username'                  => $user->getUserIdentifier(),
            'email'                     => $user->getEmail(),
            'name_prefix'               => $user->getNamePrefix(),
            'first_name'                => $user->getFirstName(),
            'middle_name'               => $user->getMiddleName(),
            'last_name'                 => $user->getLastName(),
            'name_suffix'               => $user->getNameSuffix(),
            'phone'                     => $user->getPhone(),
            'image'                     => $user->getImagePath(),
            'last_login'                => $user->getLastLogin() ? $user->getLastLogin()->getTimestamp() : null,
            'login_count'               => $user->getLoginCount(),
            'catalog_default_locale'    => $user->getCatalogLocale()->getCode(),
            'user_default_locale'       => $user->getUiLocale()->getCode(),
            'catalog_default_scope'     => $user->getCatalogScope()->getCode(),
            'default_category_tree'     => $user->getDefaultTree()->getCode(),
            'email_notifications'       => $user->isEmailNotifications(),
            'timezone'                  => $user->getTimezone(),
            'groups'                    => $user->getGroupNames(),
            'visible_group_ids'         => $this->getVisibleGroupIds($user),
            'roles'                     => $this->getRoleNames($user),
            'product_grid_filters'      => $user->getProductGridFilters(),
            'profile'                   => $user->getProfile(),
            'avatar'                    => null === $user->getAvatar() ? [
                'filePath'         => null,
                'originalFilename' => null,
            ] : $this->fileNormalizer->normalize($user->getAvatar()),
            'meta'                      => [
                'id'      => $user->getId(),
                'created' => $user->getCreatedAt() ? $user->getCreatedAt()->getTimestamp() : null,
                'updated' => $user->getUpdatedAt() ? $user->getUpdatedAt()->getTimestamp() : null,
                'form'    => $this->getFormName($user),
                'image'   => [
                    'filePath' => null === $user->getAvatar() ?
                        null :
                        $this->fileNormalizer->normalize($user->getAvatar())['filePath']
                ]
            ]
        ];

        $aliases = $this->datagridViewRepo->getDatagridViewAliasesByUser($user);
        foreach ($aliases as $alias) {
            $defaultView = $user->getDefaultGridView($alias);
            // Set default_product_grid_view, default_published_product_grid_view, etc.
            $result[sprintf('default_%s_view', str_replace('-', '_', $alias))]
                = $defaultView === null ? null : $defaultView->getId();
        }

        $normalizedProperties = array_reduce($this->properties, function ($result, string $propertyName) use ($user) {
            return $result + [$propertyName => $user->getProperty($propertyName)];
        }, []);

        $normalizedCompound = array_map(function ($normalizer) use ($user, $format, $context) {
            return $normalizer->normalize($user, $format, $context);
        }, $this->userNormalizers);

        $result['properties'] = $normalizedProperties;

        return array_merge_recursive($result, ...$normalizedCompound);
    }

    /**
     * {@inheritdoc}
     */
    public function supportsNormalization($data, $format = null): bool
    {
        return $data instanceof UserInterface && in_array($format, $this->supportedFormats);
    }

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

    /**
     * @param UserInterface $user
     *
     * @return string[]
     */
    private function getRoleNames(UserInterface $user): array
    {
        return $user->getRolesCollection()->map(function (Role $role) {
            return $role->getRole();
        })->toArray();
    }

    /**
     * @param UserInterface $user
     *
     * @return string
     */
    private function getFormName($user): string
    {
        if ($this->securityFacade->isGranted('pim_user_user_edit')) {
            return 'pim-user-edit-form';
        }

        $token = $this->tokenStorage->getToken();
        $currentUser = $token ? $token->getUser() : null;

        if ($user->getId() && is_object($currentUser) && $currentUser->getId() == $user->getId()) {
            return 'pim-user-profile-form';
        }

        return 'pim-user-show';
    }

    /** @return int[] */
    private function getVisibleGroupIds(UserInterface $user): array
    {
        $visibleGroups = array_values(array_filter(
            $user->getGroups()->toArray(),
            static fn (Group $group) => $group->getName() !== 'All',
        ));

        return array_map(static fn (Group $group) => $group->getId(), $visibleGroups);
    }
}