<?php
/**
* Mirasvit
*
* This source file is subject to the Mirasvit Software License, which is available at https://mirasvit.com/license/.
* Do not edit or add to this file if you wish to upgrade the to newer versions in the future.
* If you wish to customize this module for your needs.
* Please refer to http://www.magentocommerce.com for more information.
*
* @category Mirasvit
* @package mirasvit/module-search-autocomplete
* @version 1.2.4
* @copyright Copyright (C) 2020 Mirasvit (https://mirasvit.com/)
*/



namespace Mirasvit\SearchAutocomplete\Index;

use Magento\Framework\DataObject;
use Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection;
use Mirasvit\SearchAutocomplete\Api\Data\Index\InstanceInterface;
use Mirasvit\SearchAutocomplete\Api\Data\IndexInterface;
use Mirasvit\SearchAutocomplete\Api\Repository\IndexRepositoryInterface;

abstract class AbstractIndex implements InstanceInterface
{
/**
* @var AbstractCollection|\Magento\Framework\Data\Collection
*/
protected $collection;

/**
* @var IndexInterface
*/
protected $index;

/**
* @var int
*/
protected $limit = 10;

/**
* @var \Magento\Framework\Search\Response\QueryResponse|\Magento\Framework\Search\ResponseInterface
*/
protected $queryResponse;

/**
* @var IndexRepositoryInterface
*/
private $indexRepository;

/**
* @var int
*/
private $recentId;

/**
* @return \Magento\Framework\Data\Collection|AbstractCollection
*/
public function getCollection()
{
if (!$this->collection || $this->index->getData('index_id') !== $this->recentId) {
$this->collection = $this->indexRepository->getCollection($this->index);
$this->collection->setPageSize($this->limit);
$this->recentId = $this->index->getData('index_id');

if (method_exists($this->collection, 'getSelect')) {
if (strpos($this->collection->getSelect(), 'search_result') !== false) {
$this->collection->getSelect()->order('score desc');
}
}
}

return $this->collection;
}

/**
* @param IndexInterface $index
* @return $this
*/
public function setIndex($index)
{
$this->index = $index;

return $this;
}

/**
* @param int $limit
* @return $this
*/
public function setLimit($limit)
{
$this->limit = $limit > 0 ? $limit : 10;

return $this;
}

/**
* @param IndexRepositoryInterface $indexRepository
* @return $this
*/
public function setRepository(IndexRepositoryInterface $indexRepository)
{
$this->indexRepository = $indexRepository;

return $this;
}

/**
* @return int
*/
public function getSize()
{
return $this->getCollection()->getSize();
}

/**
* @return array
*/
abstract public function getItems();
}