ischenko/yii2-jsloader

<?php
/**
 * @copyright Copyright (c) 2016 Roman Ishchenko
 * @license https://github.com/ischenko/yii2-jsloader/blob/master/LICENSE
 * @link https://github.com/ischenko/yii2-jsloader#readme
 */

namespace ischenko\yii2\jsloader\base;

use ischenko\yii2\jsloader\FilterInterface;

/**
 * Base class for filters
 *
 * @author Roman Ishchenko <roman@ishchenko.ck.ua>
 * @since 1.0
 */
abstract class Filter implements FilterInterface
{
    /**
     * @var mixed|null
     */
    private $value;

    /**
     * Filter constructor.
     * @param mixed $value
     */
    public function __construct($value = null)
    {
        $this->value = $value;
    }

    /**
     * Performs checks on single data entity
     *
     * @param mixed $data
     * @return boolean
     */
    abstract public function match($data): bool;

    /**
     * @return mixed
     */
    public function getValue()
    {
        return $this->value;
    }

    /**
     * @param mixed $value
     */
    public function setValue($value)
    {
        $this->value = $value;
    }

    /**
     * Performs filtering of given array
     *
     * @param array $data
     * @return array filtered data
     */
    public function filter(array $data): array
    {
        $filteredData = [];

        foreach ($data as $value) {
            if ($this->match($value)) {
                $filteredData[] = $value;
            }
        }

        return $filteredData;
    }
}