private async Task ProcessRuleAsync(MonitoringRule rule)
{
try
{
var lastNotificationDate = await _notificationsCache.GetLastNotificationDateAsync(rule.Id);
if (rule.NeedsNotification(lastNotificationDate))
{
var action = new SendNotificationMonitoringAction();
rule.ActionsByTypeName[action.TypeName].CopyTo(action);
if (string.IsNullOrWhiteSpace(action.NotificationChannelId))
{
await _notificationSender.SendAsync(rule.GetNotificationText());
}
else
{
await _notificationSender.SendAsync(action.NotificationChannelId, rule.GetNotificationText());
}
await _notificationsCache.AddOrUpdateAsync(rule.Id,
DateTime.UtcNow.Add(MonitoringRuleExtensions.NotificationRemindPeriod));
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to ProcessRule. {@Rule}", rule.Name);
}
}
public static bool NeedsNotification(this MonitoringRule rule, DateTime?lastNotificationDate)
{
lastNotificationDate ??= DateTime.MinValue;
var action = new SendNotificationMonitoringAction();
if (rule.ActionsByTypeName == null || !rule.ActionsByTypeName.TryGetValue(action.TypeName, out _))
{
return(false);
}
if (rule.CurrentState == null)
{
return(false);
}
if (rule.CurrentState.IsActive != rule.PrevState?.IsActive)
{
return(true);
}
var timeToRemind = DateTime.UtcNow - lastNotificationDate > NotificationRemindPeriod;
if (rule.CurrentState.IsActive && timeToRemind)
{
return(true);
}
return(false);
}
