<?php
namespace Elastica\Test\Aggregation;

use Elastica\Aggregation\Max;
use Elastica\Document;
use Elastica\Query;
use Elastica\Script;

class MaxTest extends BaseAggregationTest
{
    protected function _getIndexForTest()
    {
        $index = $this->_createIndex();

        $index->getType('test')->addDocuments(array(
            new Document(1, array('price' => 5)),
            new Document(2, array('price' => 8)),
            new Document(3, array('price' => 1)),
            new Document(4, array('price' => 3)),
        ));

        $index->refresh();

        return $index;
    }

    /**
     * @group unit
     */
    public function testToArray()
    {
        $expected = array(
            'max' => array(
                'field' => 'price',
                'script' => '_value * conversion_rate',
                'params' => array(
                    'conversion_rate' => 1.2,
                ),
            ),
            'aggs' => array(
                'subagg' => array('max' => array('field' => 'foo')),
            ),
        );

        $agg = new Max('min_price_in_euros');
        $agg->setField('price');
        $agg->setScript(new Script('_value * conversion_rate', array('conversion_rate' => 1.2)));
        $max = new Max('subagg');
        $max->setField('foo');
        $agg->addAggregation($max);

        $this->assertEquals($expected, $agg->toArray());
    }

    /**
     * @group functional
     */
    public function testMaxAggregation()
    {
        $index = $this->_getIndexForTest();

        $agg = new Max('min_price');
        $agg->setField('price');

        $query = new Query();
        $query->addAggregation($agg);
        $results = $index->search($query)->getAggregation('min_price');

        $this->assertEquals(8, $results['value']);

        // test using a script
        $agg->setScript(new Script('_value * conversion_rate', array('conversion_rate' => 1.2)));
        $query = new Query();
        $query->addAggregation($agg);
        $results = $index->search($query)->getAggregation('min_price');

        $this->assertEquals(8 * 1.2, $results['value']);
    }
}