<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

namespace PrestaShopBundle\Controller\ArgumentResolver;

use PrestaShop\PrestaShop\Core\Search\ControllerAction;
use PrestaShop\PrestaShop\Core\Search\Filters;
use PrestaShop\PrestaShop\Core\Search\SearchParametersInterface;
use PrestaShopBundle\Entity\Repository\AdminFilterRepository;
use PrestaShopBundle\Event\FilterSearchCriteriaEvent;
use PrestaShopBundle\Security\Admin\Employee;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;

/**
 * If an action inject instance of Filters, this class is responsible of
 * creating it from available sources.
 *
 * @deprecated Use FiltersBuilderResolver instead
 */
class SearchParametersResolver implements ArgumentValueResolverInterface
{
    /**
     * @var SearchParametersInterface
     */
    private $searchParameters;

    /**
     * @var AdminFilterRepository
     */
    private $adminFilterRepository;

    /**
     * @var Employee|void
     */
    private $employee;

    /**
     * @var EventDispatcherInterface
     */
    private $dispatcher;

    /**
     * @var int
     */
    private $shopId;

    /**
     * SearchParametersResolver constructor.
     *
     * @param SearchParametersInterface $searchParameters
     * @param TokenStorageInterface $tokenStorage
     * @param AdminFilterRepository $adminFilterRepository
     * @param EventDispatcherInterface $dispatcher
     * @param int $shopId The Shop id
     */
    public function __construct(
        SearchParametersInterface $searchParameters,
        TokenStorageInterface $tokenStorage,
        AdminFilterRepository $adminFilterRepository,
        EventDispatcherInterface $dispatcher,
        $shopId
    ) {
        $this->searchParameters = $searchParameters;
        $this->adminFilterRepository = $adminFilterRepository;
        $this->employee = $this->getEmployee($tokenStorage);
        $this->shopId = $shopId;
        $this->dispatcher = $dispatcher;
    }

    /**
     * {@inheritdoc}
     */
    public function supports(Request $request, ArgumentMetadata $argument)
    {
        return is_subclass_of($argument->getType(), Filters::class) &&
            $this->employee instanceof Employee;
    }

    /**
     * {@inheritdoc}
     *
     * @throws \Doctrine\ORM\ORMInvalidArgumentException
     * @throws \Doctrine\ORM\OptimisticLockException
     */
    public function resolve(Request $request, ArgumentMetadata $argument)
    {
        list($controller, $action) = ControllerAction::fromString($request->get('_controller', ''));
        $filtersClass = $argument->getType();
        /** @var Filters $filters */
        $filters = $this->buildDefaultFilters($filtersClass);

        if ($request->isMethod('GET')) {
            $this->overrideWithSavedFilters($filters, $controller, $action);
        }

        if ($this->overrideWithRequest($request, $filters)) {
            $this->persistFilters($filters, $controller, $action);
        }

        $filterSearchParametersEvent = new FilterSearchCriteriaEvent($filters);
        $this->dispatcher->dispatch($filterSearchParametersEvent, FilterSearchCriteriaEvent::NAME);

        yield $filterSearchParametersEvent->getSearchCriteria();
    }

    /**
     * @param Filters $filters
     * @param string $controller
     * @param string $action
     *
     * @return bool Indicates if filters have been overridden
     */
    private function overrideWithSavedFilters(Filters $filters, $controller, $action)
    {
        $savedFilters = $this->searchParameters->getFiltersFromRepository(
            $this->employee->getId(),
            $this->shopId,
            $controller,
            $action,
            get_class($filters)
        );

        if ($savedFilters) {
            $filters->add($savedFilters->all());

            return true;
        }

        return false;
    }

    /**
     * @param Request $request
     * @param Filters $filters
     *
     * @return bool Indicates if filters have been overridden
     */
    private function overrideWithRequest(Request $request, Filters $filters)
    {
        /** @var Filters $queryFilters */
        $queryFilters = $this->searchParameters->getFiltersFromRequest($request, get_class($filters));
        if ($queryFilters->count()) {
            $filters->add($queryFilters->all());

            return true;
        }

        return false;
    }

    /**
     * @param Filters $filters
     * @param string $controller
     * @param string $action
     *
     * @throws \Doctrine\ORM\OptimisticLockException
     */
    private function persistFilters(Filters $filters, $controller, $action)
    {
        //Update the saved filters (which have been modified by the query)
        $filtersToSave = $filters->all();
        unset($filtersToSave['offset']); //We don't save the page as it can be confusing for UX

        $this->adminFilterRepository->createOrUpdateByEmployeeAndRouteParams(
            $this->employee->getId(),
            $this->shopId,
            $filtersToSave,
            $controller,
            $action
        );
    }

    /**
     * @param string $filtersClass
     *
     * @return mixed
     */
    private function buildDefaultFilters($filtersClass)
    {
        $filters = new $filtersClass($filtersClass::getDefaults());

        return $filters;
    }

    /**
     * @param TokenStorageInterface $tokenStorage
     *
     * @return Employee|null
     */
    private function getEmployee(TokenStorageInterface $tokenStorage)
    {
        if (null === $token = $tokenStorage->getToken()) {
            return null;
        }

        $employee = $token->getUser();

        return $employee instanceof Employee ? $employee : null;
    }
}