<?php

/*
 * Chill is a software for social workers
 *
 * Copyright (C) 2016, Champs Libres Cooperative SCRLFS,
 * <http://www.champs-libres.coop>, <info@champs-libres.coop>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace Chill\PersonBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Chill\PersonBundle\Entity\Person;
use Chill\MainBundle\Form\Type\AddressType;
use Chill\MainBundle\Entity\Address;
use Doctrine\Common\Collections\Criteria;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Validator\Validator\ValidatorInterface;

/**
 * Class PersonAddressController
 * Controller for addresses associated with person
 *
 * @package Chill\PersonBundle\Controller
 * @author Julien Fastré <julien.fastre@champs-libres.coop>
 * @author Champs Libres <info@champs-libres.coop>
 */
class PersonAddressController extends AbstractController
{
    /**
     * @var ValidatorInterface
     */
    protected $validator;

    /**
     * PersonAddressController constructor.
     *
     * @param ValidatorInterface $validator
     */
    public function __construct(ValidatorInterface $validator)
    {
        $this->validator = $validator;
    }

    public function listAction($person_id)
    {
        $person = $this->getDoctrine()->getManager()
              ->getRepository('ChillPersonBundle:Person')
              ->find($person_id);

        if ($person === null) {
            throw $this->createNotFoundException("Person with id $person_id not"
                    . " found ");
        }

        $this->denyAccessUnlessGranted(
            'CHILL_PERSON_SEE',
            $person,
            "You are not allowed to edit this person."
        );

        return $this->render('ChillPersonBundle:Address:list.html.twig', array(
            'person' => $person
        ));
    }

    public function newAction($person_id)
    {
        $person = $this->getDoctrine()->getManager()
              ->getRepository('ChillPersonBundle:Person')
              ->find($person_id);

        if ($person === null) {
            throw $this->createNotFoundException("Person with id $person_id not"
                    . " found ");
        }

        $this->denyAccessUnlessGranted(
            'CHILL_PERSON_UPDATE',
            $person,
            "You are not allowed to edit this person."
        );

        $address = new Address();

        $form = $this->createCreateForm($person, $address);

        return $this->render('ChillPersonBundle:Address:new.html.twig', array(
            'person' => $person,
            'form' => $form->createView()
        ));
    }

    public function createAction($person_id, Request $request)
    {
        $person = $this->getDoctrine()->getManager()
              ->getRepository('ChillPersonBundle:Person')
              ->find($person_id);

        if ($person === null) {
            throw $this->createNotFoundException("Person with id $person_id not"
                    . " found ");
        }

        $this->denyAccessUnlessGranted(
            'CHILL_PERSON_UPDATE',
            $person,
            "You are not allowed to edit this person."
        );

        $address = new Address();

        $form = $this->createCreateForm($person, $address);
        $form->handleRequest($request);

        $person->addAddress($address);

        if ($form->isSubmitted() && $form->isValid()) {
            $validatePersonErrors = $this->validatePerson($person);

            if (count($validatePersonErrors) !== 0) {
                foreach ($validatePersonErrors as $error) {
                    $this->addFlash('error', $error->getMessage());
                }
            } elseif ($form->isValid()) {

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

                $this->addFlash(
                    'success',
                    $this->get('translator')->trans('The new address was created successfully')
                );

                return $this->redirectToRoute('chill_person_address_list', array(
                    'person_id' => $person->getId()
                ));
            } else {
                $this->addFlash('error', $this->get('translator')
                        ->trans('Error! Address not created!'));
            }
        }

        return $this->render('ChillPersonBundle:Address:new.html.twig', array(
            'person' => $person,
            'form' => $form->createView()
        ));
    }

    public function editAction($person_id, $address_id)
    {
        $person = $this->getDoctrine()->getManager()
              ->getRepository('ChillPersonBundle:Person')
              ->find($person_id);

        if ($person === null) {
            throw $this->createNotFoundException("Person with id $person_id not"
                    . " found ");
        }

        $this->denyAccessUnlessGranted(
            'CHILL_PERSON_UPDATE',
            $person,
            "You are not allowed to edit this person."
        );

        $address = $this->findAddressById($person, $address_id);

        $form = $this->createEditForm($person, $address);

        return $this->render('ChillPersonBundle:Address:edit.html.twig', array(
           'person' => $person,
           'address' => $address,
           'form' => $form->createView()
        ));
    }

    public function updateAction($person_id, $address_id, Request $request)
    {
        $person = $this->getDoctrine()->getManager()
            ->getRepository('ChillPersonBundle:Person')
            ->find($person_id);

        if ($person === null) {
            throw $this->createNotFoundException("Person with id $person_id not"
                . " found ");
        }

        $this->denyAccessUnlessGranted(
            'CHILL_PERSON_UPDATE',
            $person,
            "You are not allowed to edit this person."
        );

        $address = $this->findAddressById($person, $address_id);

        $form = $this->createEditForm($person, $address);
        $form->handleRequest($request);

        if ($form->isSubmitted() and $form->isValid()) {
            $validatePersonErrors = $this->validatePerson($person);

            if (count($validatePersonErrors) !== 0) {
                foreach ($validatePersonErrors as $error) {
                    $this->addFlash('error', $error->getMessage());
                }
            } elseif ($form->isValid()) {
                $this->getDoctrine()->getManager()
                      ->flush();

                $this->addFlash('success', $this->get('translator')->trans(
                    "The address has been successfully updated"
                ));

                return $this->redirectToRoute('chill_person_address_list', array(
                   'person_id' => $person->getId()
                ));
            } else {
                $this->addFlash('error', $this->get('translator')
                    ->trans('Error when updating the period'));
            }
        }

        return $this->render('ChillPersonBundle:Address:edit.html.twig', array(
           'person' => $person,
           'address' => $address,
           'form' => $form->createView()
        ));
    }

    /**
     * @param Person $person
     * @param Address $address
     * @return \Symfony\Component\Form\Form
     */
    protected function createEditForm(Person $person, Address $address)
    {
        $form = $this->createForm(AddressType::class, $address, array(
           'method' => 'POST',
           'action' => $this->generateUrl('chill_person_address_update', array(
              'person_id' => $person->getId(),
              'address_id' => $address->getId()
           )),
           'has_no_address' => true
        ));

        $form->add('submit', SubmitType::class, array(
           'label' => 'Submit'
        ));

        return $form;
    }

    /**
     *
     * @param Person $person
     * @param Address $address
     * @return \Symfony\Component\Form\Form
     */
    protected function createCreateForm(Person $person, Address $address)
    {
        $form = $this->createForm(AddressType::class, $address, array(
           'method' => 'POST',
           'action' => $this->generateUrl('chill_person_address_create', array(
              'person_id' => $person->getId()
           )),
           'has_no_address' => true
        ));

        $form->add('submit', SubmitType::class, array(
           'label' => 'Submit'
        ));

        return $form;
    }

    /**
     *
     * @param Person $person
     * @param int $address_id
     * @return Address
     * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException if the address id does not exists or is not associated with given person
     */
    protected function findAddressById(Person $person, $address_id)
    {
        // filtering address
        $criteria = Criteria::create()
              ->where(Criteria::expr()->eq('id', $address_id))
              ->setMaxResults(1);
        $addresses = $person->getAddresses()->matching($criteria);

        if (count($addresses) === 0) {
            throw $this->createNotFoundException("Address with id $address_id "
                  . "matching person $person_id not found ");
        }

        return $addresses->first();
    }

    /**
     * @param Chill\PersonBundle\Entity\Person $person
     * @return \Symfony\Component\Validator\ConstraintViolationListInterface
     */
    private function validatePerson(Person $person)
    {
        $errors = $this->validator
            ->validate($person, null, array('Default'));
        $errors_addresses_consistent = $this->validator
            ->validate($person, null, array('addresses_consistent'));

        foreach($errors_addresses_consistent as $error) {
            $errors->add($error);
        }

        return $errors;
    }
}