delivery step actions

backend/app/plugins/wiaas/includes/document/wiaas-document-functions.php

@@ -187,4 +187,44 @@ function wiaas_get_standard_package_order_item_documents($order, $package_item_i
 
 		return $doc;
 	}, $order_documents);
+}
+
+/**
+ * Retrieve documents for order item
+ *
+ * @param $order_item
+ * @param string|null $doc_type
+ *
+ * @return array {
+ *       $param string key  Unique key used for frontend downloand
+ *       $param string name Document name visible in download link
+ *       $param string version  Relative path from upload directory to physical document file
+ *       $param string type  Document type
+ *
+ * @reference Wiaas_Document
+ * }
+ */
+function wiaas_get_order_item_documents($order_item, $doc_type = null) {
+
+	$documents = empty($order_item['wiaas_documents']) ? array() : $order_item['wiaas_documents'];
+
+	if (empty($doc_type)) {
+		return $documents;
+	}
+
+	$filtered_documents = array();
+
+	foreach ($documents as $document) {
+
+		if ($document['type'] === $doc_type) {
+			$filtered_documents[] = $document;
+		}
+	}
+
+	return $filtered_documents;
+}
+
+function wiaas_get_order_item_document_admin_download_link($order_id, $item_id, $version) {
+
+
 }