<?php
/**
 * The Mixer strategy interface.
 *
 * All mixing strategies must implement this interface
 *
 * PHP version 5.3
 *
 * @category   PHPCryptLib
 * @package    Random
 * @author     Anthony Ferrara <ircmaxell@ircmaxell.com>
 * @copyright  2011 The Authors
 * @license    http://www.opensource.org/licenses/mit-license.html  MIT License
 * @version    Build @@version@@
 */

namespace CryptLib\Random;

/**
 * The Mixer strategy interface.
 *
 * All mixing strategies must implement this interface
 *
 * @category   PHPCryptLib
 * @package    Random
 * @author     Anthony Ferrara <ircmaxell@ircmaxell.com>
 * @codeCoverageIgnore
 */
interface Mixer {

    /**
     * Return an instance of Strength indicating the strength of the mixer
     *
     * @return Strength An instance of one of the strength classes
     */
    public static function getStrength();

    /**
     * Test to see if the mixer is available
     *
     * @return boolean If the mixer is available on the system
     */
    public static function test();

    /**
     * Mix the provided array of strings into a single output of the same size
     *
     * All elements of the array should be the same size.
     *
     * @param array $parts The parts to be mixed
     *
     * @return string The mixed result
     */
    public function mix(array $parts);

}