<?php
namespace WapplerSystems\Meilisearch\Domain\Search\Query\ParameterBuilder;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2010-2017 dkd Internet Service GmbH <meilisearch-support@dkd.de>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script 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 General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use WapplerSystems\Meilisearch\Domain\Search\Query\AbstractQueryBuilder;
use WapplerSystems\Meilisearch\System\Configuration\TypoScriptConfiguration;

/**
 * The PhraseFields class
 */
class PhraseFields extends AbstractFieldList implements ParameterBuilder
{
    /**
     * Parameter key which should be used for Meilisearch URL query
     *
     * @var string
     */
    protected $parameterKey = 'pf';

    /**
     * Parses the string representation of the fieldList (e.g. content^100, title^10) to the object representation.
     *
     * @param string $fieldListString
     * @param string $delimiter
     * @return PhraseFields
     */
    public static function fromString(string $fieldListString, string $delimiter = ',') : PhraseFields
    {
        return self::initializeFromString($fieldListString, $delimiter);
    }

    /**
     * @param TypoScriptConfiguration $meilisearchConfiguration
     * @return PhraseFields
     */
    public static function fromTypoScriptConfiguration(TypoScriptConfiguration $meilisearchConfiguration)
    {
        $isEnabled = $meilisearchConfiguration->getPhraseSearchIsEnabled();
        if (!$isEnabled) {
            return new PhraseFields(false);
        }

        return self::fromString((string)$meilisearchConfiguration->getSearchQueryPhraseFields());
    }

    /**
     * Parses the string representation of the fieldList (e.g. content^100, title^10) to the object representation.
     *
     * @param string $fieldListString
     * @param string $delimiter
     * @return PhraseFields
     */
    protected static function initializeFromString(string $fieldListString, string $delimiter = ',') : PhraseFields
    {
        $fieldList = self::buildFieldList($fieldListString, $delimiter);
        return new PhraseFields(true, $fieldList);
    }

    /**
     * @param AbstractQueryBuilder $parentBuilder
     * @return AbstractQueryBuilder
     */
    public function build(AbstractQueryBuilder $parentBuilder): AbstractQueryBuilder
    {
        $phraseFieldString = $this->toString();
        if ($phraseFieldString === '' || !$this->getIsEnabled()) {
            return $parentBuilder;
        }

        $parentBuilder->getQuery()->getEDisMax()->setPhraseFields($phraseFieldString);
        return $parentBuilder;
    }
}