Sons of PHP - State Machine

<?php

use SonsOfPHP\Component\StateMachine\StateMachine;

$sm = new StateMachine([
    'graph' => 'order',
    'supports' => [
        OrderInterface::class,
    ],
    'transitions' => [
        'create' => [
            'from' => 'draft',
            'to' => 'new',
        ],
        'fulfill' => [
            'from' => 'new',
            'to' => 'fulfilled',
        ],
        'cancel' => [
            'from' => ['draft', 'new', 'fulfilled'],
            'to' => 'fulfilled',
        ],
    ],
]);

// Check if state can change
$sm->can($order, 'create');

// Apply transition
$sm->apply($order, 'fulfil');

// Get Current State
$sm->getState($order);

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