Initial commit

examples/statemachine.php

@@ -0,0 +1,53 @@
+<?php
+
+require_once __DIR__."/../vendor/autoload.php";
+
+use NoccyLabs\StateMachine\StateTrait;
+use NoccyLabs\StateMachine\StateMachineTrait;
+use NoccyLabs\StateMachine\Attributes\ValidTransitions;
+
+enum OrderStatus {
+    use StateTrait;
+    #[ValidTransitions([OrderStatus::PROCESSING])]
+    case PENDING;
+    #[ValidTransitions([OrderStatus::PROCESSED,OrderStatus::PENDING])]
+    case PROCESSING;
+    #[ValidTransitions([OrderStatus::SHIPPED])]
+    case PROCESSED;
+    #[NoValidTransitions]
+    case SHIPPED;
+}
+
+class Order {
+    use StateMachineTrait;
+    public function __construct(
+        private OrderStatus $status
+    )
+    {
+    }
+    public function setStatus(OrderStatus $status): self
+    {
+        if (!$this->isValidTransition($this->status, $status)) {
+            throw new \RuntimeException("Invalid transition");
+        }
+        $this->status = $status;
+        return $this;
+    }
+    public function getStatus(): OrderStatus
+    {
+        return $this->status;
+    }
+}
+
+$os = new Order(OrderStatus::PENDING);
+var_dump($os->getStatus());
+
+try {
+    $os->setStatus(OrderStatus::PROCESSED);
+} catch (\Exception|InvalidTransitionException $e) {
+
+}
+var_dump($os->getStatus());
+
+$os->setStatus(OrderStatus::PROCESSING);
+var_dump($os->getStatus());