private bool ActionExists()
{
if (!AllMessages.Any())
{
return(false);
}
var topicNames = AllMessages
.Select(x => x.Topic.Substring(x.Topic.LastIndexOf("/", StringComparison.InvariantCulture)))
.Distinct()
.ToList();
if (topicNames.Count > 5)
{
return(false);
}
return(topicNames.All(x => ActionTopicNames.Contains(x)));
}