<?php
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Framework\Search\Dynamic\Algorithm;

use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\ObjectManagerInterface;

class Repository
{
    /**
     * @var ObjectManagerInterface
     */
    private $objectManager;

    /**
     * @var array
     */
    private $algorithms = [];

    /**
     * @var AlgorithmInterface[]
     */
    private $instances = [];

    /**
     * Construct
     *
     * @param ObjectManagerInterface $objectManager
     * @param array $algorithms
     */
    public function __construct(ObjectManagerInterface $objectManager, array $algorithms)
    {
        $this->objectManager = $objectManager;
        $this->algorithms = $algorithms;
    }

    /**
     * Create algorithm
     *
     * @param string $algorithmType
     * @param array $data
     * @throws \Magento\Framework\Exception\LocalizedException
     * @return AlgorithmInterface
     */
    public function get($algorithmType, array $data = [])
    {
        if (!isset($this->instances[$algorithmType])) {
            if (!isset($this->algorithms[$algorithmType])) {
                throw new LocalizedException(
                    new \Magento\Framework\Phrase('%1 was not found in algorithms', [$algorithmType])
                );
            }

            $className = $this->algorithms[$algorithmType];
            $model = $this->objectManager->create($className, $data);

            if (!$model instanceof AlgorithmInterface) {
                throw new LocalizedException(
                    new \Magento\Framework\Phrase(
                        '%1 doesn\'t extends \Magento\Framework\Search\Dynamic\Algorithm\AlgorithmInterface',
                        [$className]
                    )
                );
            }
            $this->instances[$algorithmType] = $model;
        }

        return $this->instances[$algorithmType];
    }
}
