add documents property to order

backend/app/plugins/wiaas/includes/class-wiaas-order.php

@@ -118,6 +118,8 @@ class Wiaas_Order {
 			$data = self::_append_order_process($data, $order, $request);
 
 			$data = self::_append_order_comments($data, $order, $request);
+
+			$data = self::_append_documents($data, $order, $request);
 		}
 
 		$response->set_data($data);
@@ -351,6 +353,45 @@ class Wiaas_Order {
             }
         }
 
+	    return $data;
+	}
+	
+	/** Append downloadable documents from order products if single order is requested
+     * @param $data
+     * @param $order
+     * @param $request
+     */
+	private static function _append_documents($data, $order, $request) {
+        if (isset($request['id'])) {
+			$data['documents'] = array();
+			
+			//This requires _append_packages to be called before this method
+
+			foreach($data['line_items'] as $item){
+				$product = wc_get_product($item['product_id']);
+				
+				$product_documents = array();
+				foreach ( $product->get_downloads() as $file_id => $file ) {
+					$product_documents[] = array(
+						'id'   => $file_id,
+						'name' => $file->get_name(),
+						'extension' => $file->get_file_extension()
+					);
+				}
+
+				if (count($product_documents)){
+					$data['documents'][] = array(
+						'package' => array(
+							'id' => $product->get_id(),
+							'name' => $product->get_name()
+						),
+						'documents' => $product_documents
+					);
+				}
+			}
+			
+		}
+
 	    return $data;
     }
 }

frontend/src/helpers/OrderHelper.js

@@ -37,6 +37,7 @@ export const fromWCOrder = (WCOrder) => {
             email: WCOrder.billing.email,
             address: formatAddress(WCOrder.billing)
         },
+        documents: WCOrder.documents,
         packages: WCOrder['line_items'].map(packageLine => {
             return {
                 id: packageLine['product_id'],