<?php
/*
 * Copyright (C) 2019 Champs Libres Cooperative <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\MainBundle\Form\DataMapper;

use Symfony\Component\Form\DataMapperInterface;
use Chill\MainBundle\Entity\Address;
use Chill\MainBundle\Entity\PostalCode;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\Exception\UnexpectedTypeException;

/**
 * Add a data mapper to Address.
 * 
 * If the address is incomplete, the data mapper returns null
 */
class AddressDataMapper implements DataMapperInterface
{
    /**
     * 
     * @param Address $address
     * @param \Iterator $forms
     */
    public function mapDataToForms($address, $forms)
    {
        if (NULL === $address) {
            return;
        }
        
        if (!$address instanceof Address) {
            throw new UnexpectedTypeException($address, Address::class);
        }
        
        foreach ($forms as $key => $form) {
            /** @var FormInterface $form */
            switch ($key) {
                case 'streetAddress1':
                    $form->setData($address->getStreetAddress1());
                    break;
                case 'streetAddress2':
                    $form->setData($address->getStreetAddress2());
                    break;
                case 'postCode':
                    $form->setData($address->getPostcode());
                    break;
                case 'validFrom':
                    $form->setData($address->getValidFrom());
                    break;
                case 'isNoAddress':
                    $form->setData($address->isNoAddress());
                    break;
                default:
                    break;
            }
        }
    }

    /**
     * 
     * @param \Iterator $forms
     * @param Address $address
     */
    public function mapFormsToData($forms, &$address)
    {
        if (!$address instanceof Address) {
            $address = new Address();
        }
        
        $isNoAddress = false;
        foreach ($forms as $key => $form) {
            if ($key === 'isNoAddress') {
                $isNoAddress = $form->get('isNoAddress')->getData();
            }
        }
        
        foreach ($forms as $key => $form) {
            /** @var FormInterface $form */
            switch($key) {
                case 'postCode':
                    if (!$form->getData() instanceof PostalCode && !$isNoAddress) {
                        $address = null;
                        return;
                    }
                    $address->setPostcode($form->getData());
                    break;
                case 'streetAddress1':
                    if (empty($form->getData()) && !$isNoAddress) {
                        $address = null;
                        return;
                    }
                    $address->setStreetAddress1($form->getData());
                    break;
                case 'streetAddress2':
                    $address->setStreetAddress2($form->getData());
                    break;
                case 'validFrom':
                    $address->setValidFrom($form->getData());
                    break;
                case 'isNoAddress':
                    $address->setIsNoAddress($form->getData());
                    break;
                default:
                    break;
            }
        }
    }
}