Added a service search function that contains the specified event

lib.php

@@ -44,6 +44,25 @@ function local_webhooks_change_status($serviceid) {
     return $result;
 }
 
+/**
+ * Search for services that contain the specified event.
+ *
+ * @param  string $eventname
+ * @return array
+ */
+function local_webhooks_search_services_by_event($eventname) {
+    $recordlist = local_webhooks_get_list_records();
+    $result = array();
+
+    foreach ($recordlist as $record) {
+        if (boolval($record->enable) && !empty($record->events[$eventname])) {
+            $result[] = $record;
+        }
+    }
+
+    return $result;
+}
+
 /**
  * Get the record from the database.
  *