<?php

/*
 * This file is part of the Sonata package.
 *
 * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Sonata\DoctrineORMAdminBundle\Filter;

use Doctrine\ORM\QueryBuilder;
use Sonata\AdminBundle\Form\Type\Filter\ChoiceType;
use Sonata\AdminBundle\Datagrid\ProxyQueryInterface;

class ChoiceFilter extends Filter
{
    /**
     * {@inheritdoc}
     */
    public function filter(ProxyQueryInterface $queryBuilder, $alias, $field, $data)
    {
        if (!$data || !is_array($data) || !array_key_exists('type', $data) || !array_key_exists('value', $data)) {
            return;
        }

        if (is_array($data['value'])) {
            if (count($data['value']) == 0) {
                return;
            }

            if (in_array('all', $data['value'])) {
                return;
            }

            if ($data['type'] == ChoiceType::TYPE_NOT_CONTAINS) {
                $this->applyWhere($queryBuilder, $queryBuilder->expr()->notIn(sprintf('%s.%s', $alias, $field ), $data['value']));
            } else {
                $this->applyWhere($queryBuilder, $queryBuilder->expr()->in(sprintf('%s.%s', $alias, $field ), $data['value']));
            }

        } else {

            if ($data['value'] === '' || $data['value'] === null || $data['value'] === false || $data['value'] == 'all') {
                return;
            }

            $parameterName = $this->getNewParameterName($queryBuilder);

            if ($data['type'] == ChoiceType::TYPE_NOT_CONTAINS) {
                $this->applyWhere($queryBuilder, sprintf('%s.%s <> :%s', $alias, $field, $parameterName));
            } else {
                $this->applyWhere($queryBuilder, sprintf('%s.%s = :%s', $alias, $field, $parameterName));
            }

            $queryBuilder->setParameter($parameterName, $data['value']);
        }
    }

    /**
     * @param string $type
     *
     * @return bool
     */
    private function getOperator($type)
    {
        $choices = array(
            ChoiceType::TYPE_CONTAINS         => 'IN',
            ChoiceType::TYPE_NOT_CONTAINS     => 'NOT IN',
            ChoiceType::TYPE_EQUAL            => '=',
        );

        return isset($choices[$type]) ? $choices[$type] : false;
    }

    /**
     * {@inheritdoc}
     */
    public function getDefaultOptions()
    {
        return array();
    }

    /**
     * {@inheritdoc}
     */
    public function getRenderSettings()
    {
        return array('sonata_type_filter_default', array(
            'operator_type' => 'sonata_type_equal',
            'field_type'    => $this->getFieldType(),
            'field_options' => $this->getFieldOptions(),
            'label'         => $this->getLabel()
        ));
    }
}