public static async Task Process(Event @event)
{
if (@event.OnHold)
{
return;
}
string title;
string message;
string thingId;
Gateway gateway;
long locationId;
IEnumerable <Measure> measures;
long recentMeasuresSum, oldMeasuresSum, olderMeasuresSum, delta;
switch (@event.EventType)
{
case Models.EventType.Threshold:
thingId = "EMSfIIoT:" + @event.Variable.Split(":").First();
gateway = BoschIoTSuiteApiConnector.gateways.Where(gateway => gateway.thingId.Equals(thingId)).First();
locationId = gateway.attributes.configuration.devices.Where(device => device.deviceId.Equals(@event.Variable)).First().locationId;
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out measures);
recentMeasuresSum = measures.Sum(measure => measure.Value);
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out measures, 1);
oldMeasuresSum = measures.Sum(measure => measure.Value);
delta = recentMeasuresSum - oldMeasuresSum;
title = "Device threshold";
switch (@event.EventValueType)
{
case EventValueType.EqualTo:
if (delta == @event.EventValue)
{
message = $"Your device {@event.Variable} read equaled the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
case EventValueType.GreaterThan:
if (delta > @event.EventValue)
{
message = $"Your device {@event.Variable} read surpassed the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
case EventValueType.GreaterThanOrEqualTo:
if (delta >= @event.EventValue)
{
message = $"Your device {@event.Variable} read surpassed or equaled the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
case EventValueType.LessThan:
if (delta < @event.EventValue)
{
message = $"Your device {@event.Variable} read falled behind the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
case EventValueType.LessThanOrEqualTo:
if (delta <= @event.EventValue)
{
message = $"Your device {@event.Variable} read falled behind or equaled the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
case EventValueType.NotEqualTo:
if (delta != @event.EventValue)
{
message = $"Your device {@event.Variable} read differed the the defined threshold {@event.EventValue}";
break;
}
else
{
return;
}
default:
return;
}
break;
case Models.EventType.Inactive:
gateway = BoschIoTSuiteApiConnector.gateways.Where(gateway => gateway.thingId.Equals(@event.Variable)).First();
locationId = gateway.attributes.configuration.devices.First().locationId;
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out var lastRead);
DateTime lastMeasureDate = lastRead.First().TimeStamp;
if (lastMeasureDate.AddMinutes(@event.EventValue) < DateTime.UtcNow)
{
message = $"Your gateway {@event.Variable} last communication was {Math.Floor(DateTime.UtcNow.Subtract(lastMeasureDate).TotalMinutes)} minutes ago";
title = "Gateway inactive";
break;
}
else
{
return;
}
case Models.EventType.Algorithm:
thingId = "EMSfIIoT:" + @event.Variable.Split(":").First();
gateway = BoschIoTSuiteApiConnector.gateways.Where(gateway => gateway.thingId.Equals(thingId)).First();
locationId = gateway.attributes.configuration.devices.Where(device => device.deviceId.Equals(@event.Variable)).First().locationId;
double percentage;
double multiplier;
string timeSpan;
switch (@event.EventFrequency)
{
case EventFrequency.Every15Minutes:
multiplier = 1 / 4.0;
timeSpan = "15 minutes";
break;
case EventFrequency.Every30Minutes:
multiplier = 1 / 2.0;
timeSpan = "30 minutes";
break;
case EventFrequency.EveryHour:
multiplier = 1;
timeSpan = "hour";
break;
case EventFrequency.Every6Hours:
multiplier = 6;
timeSpan = "6 hours";
break;
case EventFrequency.EveryDay:
multiplier = 24;
timeSpan = "day";
break;
case EventFrequency.EveryWeek:
multiplier = 24 * 7;
timeSpan = "week";
break;
default:
return;
}
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out measures);
recentMeasuresSum = measures.Sum(measure => measure.Value);
MeasuresApiConnector.GetDeviceMeasures(locationId, out measures, Convert.ToInt32(multiplier * 60));
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out measures, measures.Count());
oldMeasuresSum = measures.Sum(measure => measure.Value);
MeasuresApiConnector.GetDeviceMeasures(locationId, out measures, Convert.ToInt32(2 * multiplier * 60));
MeasuresApiConnector.GetDeviceLastMeasures(locationId, out measures, measures.Count());
olderMeasuresSum = measures.Sum(measure => measure.Value);
if (oldMeasuresSum != olderMeasuresSum)
{
percentage = Convert.ToDouble(recentMeasuresSum - oldMeasuresSum) / Convert.ToDouble(oldMeasuresSum - olderMeasuresSum);
}
else
{
percentage = double.PositiveInfinity;
}
if (Math.Abs(percentage) > @event.EventValue)
{
message = $"Your device {@event.Variable} read from the last {timeSpan} differed the previous one more than the defined threshold of {@event.EventValue}%. Difference was {percentage}%.";
}
else
{
return;
}
title = "Device threshold";
break;
default:
return;
}
await SendNotificationToUser("APINotification", title, message, @event);
await _events.PutEventOnHold(@event.Id);
}
