private MeasurementData GetCustomMeasurementValue(SensorDevice sensorDevice, List <MeasurementData> measurements, CustomMeasurementRule rule)
{
var sensorMeasurement = measurements.FirstOrDefault(m => m.SensorId.Equals(rule.SensorId, StringComparison.OrdinalIgnoreCase) &&
m.SensorDeviceId.Equals(sensorDevice.Id, StringComparison.OrdinalIgnoreCase));
if (sensorMeasurement == null)
{
_logger.LogError($"No sensor '{rule.SensorId}' found from measurements of device type '{sensorDevice.SensorDeviceTypeId}'");
return(null);
}
var data = new MeasurementData()
{
SensorDeviceId = sensorDevice.Id, SensorId = rule.Id, Timestamp = DateTime.Now
};
var comparisonResult = LogicHelper.Compare(sensorMeasurement.Value, rule.Value, rule.Operator);
switch (rule.Type)
{
case Shared.Enum.ValueType.Default:
data.Value = comparisonResult ? "true" : "false";
break;
case Shared.Enum.ValueType.WasLast:
var keyName = $"{sensorDevice.Id}-{sensorMeasurement.SensorId}-{rule.Id}";
if (comparisonResult)
{
if (!_wasLastList.ContainsKey(keyName))
{
_wasLastList.Add(keyName, DateTime.Now);
}
else
{
_wasLastList[keyName] = DateTime.Now;
}
data.Value = "0";
}
else
{
if (_wasLastList.ContainsKey(keyName))
{
var ts = DateTime.Now - _wasLastList[keyName];
data.Value = ((int)ts.TotalSeconds).ToString();
}
else
{
data.Value = "-1";
}
}
break;
default:
break;
}
return(data);
}
public async Task <bool> Send(List <LocationData> locations)
{
if (!_config.AlertConfiguration.Enabled)
{
return(false);
}
foreach (var alert in _config.AlertConfiguration.Alerts)
{
bool alertNeedsToBeSent = false;
foreach (var rule in alert.RuleSet.Rules)
{
var location = locations.FirstOrDefault(l => l.Id.Equals(rule.Location, StringComparison.OrdinalIgnoreCase));
var measurement = location?.Measurements.FirstOrDefault(m => m.SensorDeviceId.Equals(rule.SensorDeviceId, StringComparison.OrdinalIgnoreCase) &&
m.SensorId.Equals(rule.SensorId, StringComparison.OrdinalIgnoreCase));
if (measurement == null)
{
continue;
}
var comparisonResult = LogicHelper.Compare(measurement.Value, rule.Value, rule.Operator);
if (!comparisonResult && alert.RuleSet.Type == MeasurementRuleSetType.AND)
{
alertNeedsToBeSent = false;
break;
}
else if (!comparisonResult && alert.RuleSet.Type == MeasurementRuleSetType.OR)
{
continue;
}
else if (comparisonResult && alert.RuleSet.Type == MeasurementRuleSetType.AND)
{
alertNeedsToBeSent = true;
continue;
}
else if (comparisonResult && alert.RuleSet.Type == MeasurementRuleSetType.OR)
{
alertNeedsToBeSent = true;
break;
}
}
if (alertNeedsToBeSent)
{
var hasNotificationBeenSent = await _noticationDataProvider.HasNotificationBeenSent(alert.Id);
if (!hasNotificationBeenSent)
{
await _notificationService.Send(alert.Title, alert.Message);
await _noticationDataProvider.SetNotificationStatus(alert.Id, true);
_logger.LogInformation($"{DateTime.Now}: Sent notification of '{alert.Description}' ({alert.Id})");
}
}
else
{
await _noticationDataProvider.SetNotificationStatus(alert.Id, false);
}
}
return(true);
}