Enigma machine

<?php
use Yaroslavche\Enigma\Enigma;
use Yaroslavche\Enigma\Rotor\I;
use Yaroslavche\Enigma\Rotor\II;
use Yaroslavche\Enigma\Rotor\III;
use Yaroslavche\Enigma\Reflector\B;

$enigma = new Enigma('ABCDEFGHIJKLMNOPQRSTUVWXYZ');

# RTL [B][I II III][ENTRY]
$enigma->setRotor(new III());
$enigma->setRotor(new II());
$enigma->setRotor(new I());

$enigma->setReflector(new B());

$enigma->setPlugPair('A', 'B');

$enigma->setKey('AAA');
$cipher = $enigma->cryptMessage('TESTMESSAGE'); // 'OLPFHNVFFYN'

$enigma->setKey('AAA');
$message = $enigma->cryptMessage($cipher); // 'TESTMESSAGE'

TODO

• Ring setting (Ringstellung) The Rotors, Rotor Encryption Process
• Wiring tables
• The method AbstractRotor::map has a boolean flag argument $reverse, which is a certain sign of a Single Responsibility Principle violation. (composer phpmd)
• Coverage (composer coverage -> build/coverage/html/index.html)
• MSI (composer infection -> build/infection)

Tests

$ composer phpunit

Test data for ring settings. When this test will be passed (seems that valid expected cipher, but need to check) - should be passed all other which are commented out.