<?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\Controller;

use Chill\MainBundle\CRUD\Controller\ApiController;
use Chill\PersonBundle\Entity\Household\Household;
use Chill\PersonBundle\Entity\Household\HouseholdMember;
use Chill\PersonBundle\Entity\Household\Position;
use Chill\PersonBundle\Entity\Person;
use Chill\PersonBundle\Form\HouseholdMemberType;
use Chill\PersonBundle\Household\MembersEditor;
use Chill\PersonBundle\Repository\AccompanyingPeriodRepository;
use Chill\PersonBundle\Security\Authorization\HouseholdVoter;
use Chill\PersonBundle\Security\Authorization\PersonVoter;
use Symfony\Component\HttpFoundation\Exception\BadRequestException;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Serializer\Exception;
use Symfony\Contracts\Translation\TranslatorInterface;

use function count;

class HouseholdMemberController extends ApiController
{
    private UrlGeneratorInterface $generator;

    private AccompanyingPeriodRepository $periodRepository;

    private TranslatorInterface $translator;

    public function __construct(
        UrlGeneratorInterface $generator,
        TranslatorInterface $translator,
        AccompanyingPeriodRepository $periodRepository
    ) {
        $this->generator = $generator;
        $this->translator = $translator;
        $this->periodRepository = $periodRepository;
    }

    /**
     * @Route(
     *     "/{_locale}/person/household/member/{id}/edit",
     *     name="chill_person_household_member_edit"
     * )
     */
    public function editMembership(Request $request, HouseholdMember $member): Response
    {

        $this->denyAccessUnlessGranted(HouseholdVoter::EDIT, $member);

        $form = $this->createForm(HouseholdMemberType::class, $member, [
            'validation_groups' => ['household_memberships'],
        ]);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $this->getDoctrine()->getManager()->flush();

            $this->addFlash('success', $this->translator
                ->trans('household.successfully saved member'));

            return $this->redirect(
                $request->get('returnPath', null) ??
                $this->generator->generate('chill_person_household_summary', ['household_id' => $member->getHousehold()->getId()])
            );
        }

        return $this->render('@ChillPerson/Household/Member/edit.html.twig', [
            'household' => $member->getHousehold(),
            'member' => $member,
            'form' => $form->createView(),
        ]);
    }

    /**
     * Route for showing an editor to leave a household.
     *
     * Possibles arguments are:
     *
     * * persons[]: an id of the person to add to the form
     * * household: the id of the destination household
     * * allow_leave_without_household: if present, the editor will allow
     *     to leave household without joining another
     *
     * @Route(
     *     "/{_locale}/person/household/members/editor",
     *     name="chill_person_household_members_editor"
     * )
     */
    public function editor(Request $request)
    {
        $em = $this->getDoctrine()->getManager();

        if ($request->query->has('persons')) {
            $ids = $request->query->get('persons', []);

            if (0 === count($ids)) {
                throw new BadRequestException('parameters persons in query ' .
                    'is not an array or empty');
            }

            $persons = $em->getRepository(Person::class)
                ->findById($ids);

            foreach ($persons as $person) {
                $this->denyAccessUnlessGranted(
                    PersonVoter::SEE,
                    $person,
                    "You are not allowed to see person with id {$person->getId()}"
                );
            }
        }

        if ($householdId = $request->query->get('household', false)) {
            $household = $em->getRepository(Household::class)
                ->find($householdId);
            $allowHouseholdCreate = false;
            $allowHouseholdSearch = false;
            $allowLeaveWithoutHousehold = false;

            if (null === $household) {
                throw $this->createNotFoundException('household not found');
            }
            // TODO ACL on household
        }

        $positions = $this->getDoctrine()->getManager()
            ->getRepository(Position::class)
            ->findAll();

        $data = [
            'persons' => $persons ?? false ?
                $this->getSerializer()->normalize($persons, 'json', ['groups' => ['read']]) : [],
            'household' => $household ?? false ?
                $this->getSerializer()->normalize($household, 'json', ['groups' => ['read']]) : null,
            'positions' => $this->getSerializer()->normalize($positions, 'json', ['groups' => ['read']]),
            'allowHouseholdCreate' => $allowHouseholdCreate ?? true,
            'allowHouseholdSearch' => $allowHouseholdSearch ?? true,
            'allowLeaveWithoutHousehold' => $allowLeaveWithoutHousehold ?? $request->query->has('allow_leave_without_household'),
        ];

        // context
        if ($request->query->has('accompanying_period_id')) {
            $period = $this->periodRepository->find(
                $request->query->getInt('accompanying_period_id')
            );

            if (null === $period) {
                throw $this->createNotFoundException('period not found');
            }

            // TODO add acl on accompanying Course
        }

        return $this->render('@ChillPerson/Household/members_editor.html.twig', [
            'data' => $data,
            'expandSuggestions' => (int) $request->query->getBoolean('expand_suggestions', false),
            'accompanyingCourse' => $period ?? null,
        ]);
    }

    /**
     * @Route(
     *     "/api/1.0/person/household/members/move.{_format}",
     *     name="chill_api_person_household_members_move"
     * )
     *
     * @param mixed $_format
     */
    public function move(Request $request, $_format): Response
    {
        try {
            $editor = $this->getSerializer()
                ->deserialize(
                    $request->getContent(),
                    MembersEditor::class,
                    $_format,
                    ['groups' => ['read']]
                );
        } catch (Exception\InvalidArgumentException|Exception\UnexpectedValueException $e) {
            throw new BadRequestException("Deserialization error: {$e->getMessage()}", 45896, $e);
        }

        // TODO ACL
        //
        $errors = $editor->validate();

        if (count($errors) > 0) {
            return $this->json($errors, 422);
        }

        $em = $this->getDoctrine()->getManager();

        // if new household, persist it
        if (
            $editor->hasHousehold()
            && false === $em->contains($editor->getHousehold())
        ) {
            $em->persist($editor->getHousehold());
        }

        foreach ($editor->getPersistable() as $el) {
            $em->persist($el);
        }
        $em->flush();

        return $this->json($editor->getHousehold(), Response::HTTP_OK, [], ['groups' => ['read']]);
    }
}