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src/RecipientsList/RecipientsList.php

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+<?php
+
+/**
+ * This Software is the property of Data Development and is protected
+ * by copyright law - it is NOT Freeware.
+ * Any unauthorized use of this software without a valid license
+ * is a violation of the license agreement and will be prosecuted by
+ * civil and criminal law.
+ * http://www.shopmodule.com
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author        D3 Data Development - Daniel Seifert <support@shopmodule.com>
+ * @link          http://www.oxidmodule.com
+ */
+
+declare(strict_types=1);
+
+namespace D3\LinkmobilityClient\RecipientsList;
+
+use D3\LinkmobilityClient\ValueObject\Recipient;
+
+class RecipientsList implements RecipientsListInterface, \Iterator
+{
+    /**
+     * @var array
+     */
+    private $recipients = [];
+
+    public function add(Recipient $recipient)
+    {
+        $this->recipients[md5(serialize($recipient))] = $recipient;
+    }
+
+    public function clearRecipents()
+    {
+        $this->recipients = [];
+    }
+
+    public function getRecipients() : array
+    {
+        return array_values(
+            array_map(
+                function (Recipient $recipient) {
+                    return $recipient->get();
+                },
+                $this->recipients
+            )
+        );
+    }
+
+    public function getRecipientsList() : array
+    {
+        return $this->recipients;
+    }
+
+    public function current()
+    {
+        return current($this->recipients);
+    }
+
+    public function next()
+    {
+        return next($this->recipients);
+    }
+
+    public function key()
+    {
+        return key($this->recipients);
+    }
+
+    public function rewind()
+    {
+        return reset($this->recipients);
+    }
+
+    public function valid()
+    {
+        return (false !== current($this->recipients) && current($this->recipients) instanceof Recipient);
+    }
+
+    //stract methods and must therefore be declared abstract or implement the remaining methods (Iterator::current, Iterator::next, Iterator::key, ...) in
+}

src/RecipientsList/RecipientsListInterface.php

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+<?php
+
+/**
+ * This Software is the property of Data Development and is protected
+ * by copyright law - it is NOT Freeware.
+ * Any unauthorized use of this software without a valid license
+ * is a violation of the license agreement and will be prosecuted by
+ * civil and criminal law.
+ * http://www.shopmodule.com
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author        D3 Data Development - Daniel Seifert <support@shopmodule.com>
+ * @link          http://www.oxidmodule.com
+ */
+
+declare(strict_types=1);
+
+namespace D3\LinkmobilityClient\RecipientsList;
+
+use D3\LinkmobilityClient\ValueObject\Recipient;
+
+interface RecipientsListInterface
+{
+    public function add(Recipient $recipient);
+
+    public function clearRecipents();
+
+    public function getRecipients() : array;
+}