<?php namespace ModelSerializers;

/**
 * Copyright 2016 OpenStack Foundation
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

use libs\utils\JsonUtils;

/**
 * Class SummitEventFeedbackSerializer
 * @package ModelSerializers
 */
final class SummitEventFeedbackSerializer extends SilverStripeSerializer
{
    protected static $array_mappings = array
    (
        'Rate'       => 'rate:json_int',
        'Note'       => 'note:json_string',
        'CreatedUTC' => 'created_date:datetime_epoch',
        'EventId'    => 'event_id:json_int',
    );

    /**
     * @param null $expand
     * @param array $fields
     * @param array $relations
     * @param array $params
     * @return array
     */
    public function serialize($expand = null, array $fields = array(), array $relations = array(), array $params = array())
    {
        $feedback = $this->object;
        $values   = parent::serialize($expand, $fields, $relations, $params);
        $member   = $feedback->hasOwner() ? $feedback->getOwner() : null;

        if (is_null($member)) return $values;

        $values['owner_id'] = intval($member->getId());
        if (!empty($expand)) {
            foreach (explode(',', $expand) as $relation) {
                switch (trim($relation)) {
                    case 'owner': {
                        unset($values['owner_id']);
                        $values['owner'] = SerializerRegistry::getInstance()->getSerializer($member)->serialize('', [], ['none']);
                    }
                    break;
                }
            }
        }

        return $values;
    }
}