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vendor/php-xapi/model/src/Interaction/ChoiceInteractionDefinition.php

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+<?php
+
+/*
+ * This file is part of the xAPI package.
+ *
+ * (c) Christian Flothmann <christian.flothmann@xabbuh.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Xabbuh\XApi\Model\Interaction;
+
+use Xabbuh\XApi\Model\Definition;
+use Xabbuh\XApi\Model\Extensions;
+use Xabbuh\XApi\Model\IRI;
+use Xabbuh\XApi\Model\IRL;
+use Xabbuh\XApi\Model\LanguageMap;
+
+/**
+ * An interaction with a number of possible choices from which the learner
+ * can select.
+ *
+ * @author Christian Flothmann <christian.flothmann@xabbuh.de>
+ */
+final class ChoiceInteractionDefinition extends InteractionDefinition
+{
+    private $choices;
+
+    /**
+     * @param string[]|null               $correctResponsesPattern
+     * @param InteractionComponent[]|null $choices
+     */
+    public function __construct(LanguageMap $name = null, LanguageMap $description = null, IRI $type = null, IRL $moreInfo = null, Extensions $extensions = null, array $correctResponsesPattern = null, array $choices = null)
+    {
+        parent::__construct($name, $description, $type, $moreInfo, $extensions, $correctResponsesPattern);
+
+        $this->choices = $choices;
+    }
+
+    /**
+     * @param InteractionComponent[]|null $choices
+     */
+    public function withChoices(array $choices = null): self
+    {
+        $interaction = clone $this;
+        $interaction->choices = $choices;
+
+        return $interaction;
+    }
+
+    /**
+     * @return InteractionComponent[]|null
+     */
+    public function getChoices(): ?array
+    {
+        return $this->choices;
+    }
+
+    public function equals(Definition $definition): bool
+    {
+        if (!parent::equals($definition)) {
+            return false;
+        }
+
+        if (!$definition instanceof ChoiceInteractionDefinition) {
+            return false;
+        }
+
+        if (null !== $this->choices xor null !== $definition->choices) {
+            return false;
+        }
+
+        if (null !== $this->choices) {
+            if (count($this->choices) !== count($definition->choices)) {
+                return false;
+            }
+
+            foreach ($this->choices as $key => $choice) {
+                if (!isset($definition->choices[$key])) {
+                    return false;
+                }
+
+                if (!$choice->equals($definition->choices[$key])) {
+                    return false;
+                }
+            }
+        }
+
+        return true;
+    }
+}