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<?php declare(strict_types=1); |
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namespace Star\Component\State\Builder; |
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use Star\Component\State\EventRegistry; |
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use Star\Component\State\Port\Symfony\EventDispatcherAdapter; |
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use Star\Component\State\StateMachine; |
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use Star\Component\State\StateTransition; |
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use Star\Component\State\TransitionRegistry; |
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use Star\Component\State\Transitions\ManyToOneTransition; |
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use Star\Component\State\Transitions\OneToOneTransition; |
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/** |
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* Tool to build the StateMachine. |
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*/ |
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final class StateBuilder |
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{ |
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/** |
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* @var TransitionRegistry |
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*/ |
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private $registry; |
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/** |
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* @var EventRegistry |
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*/ |
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private $listeners; |
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public function __construct() |
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{ |
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$this->registry = new TransitionRegistry(); |
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$this->listeners = new EventDispatcherAdapter(); |
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} |
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/** |
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* @param string $name |
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* @param string|string[] $from |
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* @param string $to |
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* |
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* @return StateBuilder |
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*/ |
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public function allowTransition(string $name, $from, string $to): StateBuilder |
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{ |
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if (\is_array($from)) { |
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$transition = new ManyToOneTransition($name, $to, ...$from); |
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} else { |
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$transition = new OneToOneTransition($name, $from, $to); |
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} |
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$this->allowCustomTransition($transition); |
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return $this; |
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} |
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/** |
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* @param StateTransition $transition |
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*/ |
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public function allowCustomTransition(StateTransition $transition): void |
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{ |
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$this->registry->addTransition($transition); |
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} |
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/** |
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* @param string $attribute The attribute |
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* @param string|string[] $states The list of states that this attribute applies to |
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* |
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* @return StateBuilder |
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*/ |
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public function addAttribute(string $attribute, $states): StateBuilder |
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{ |
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$states = (array) $states; |
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foreach ($states as $stateName) { |
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$this->registry->addAttribute($stateName, $attribute); |
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} |
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return $this; |
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} |
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public function create(string $currentState): StateMachine |
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{ |
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return new StateMachine($currentState, $this->registry, $this->listeners); |
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} |
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public static function build(): StateBuilder |
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{ |
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return new static(); |
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} |
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87
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} |
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yvoyer /
php-state
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