private async Task CheckForWarning(Measurement m)
{
Warning warning = null;
// Temperature
if (m.MeasurementTypeId == 1)
{
if (m.Value < -10)
{
warning = new Warning()
{
Type = WarningType.LowTemperature,
Timestamp = m.TimesStamp,
StationId = m.StationId,
TypeId = m.MeasurementTypeId
};
}
else if (m.Value > 38)
{
warning = new Warning()
{
Type = WarningType.HighTemperature,
Timestamp = m.TimesStamp,
StationId = m.StationId,
TypeId = m.MeasurementTypeId
};
}
}
else if (m.MeasurementTypeId == 3)
{
if (m.Value >= 35)
{
warning = new Warning()
{
Type = WarningType.HeavyRain,
Timestamp = m.TimesStamp,
StationId = m.StationId,
TypeId = m.MeasurementTypeId
};
}
}
else if (m.MeasurementTypeId == 5)
{
if (m.Value >= 65)
{
warning = new Warning()
{
Type = WarningType.Storm,
Timestamp = m.TimesStamp,
StationId = m.StationId,
TypeId = m.MeasurementTypeId
};
}
}
else if (m.MeasurementTypeId == 4)
{
if (m.Value >= 45)
{
warning = new Warning()
{
Type = WarningType.DryAir,
Timestamp = m.TimesStamp,
StationId = m.StationId,
TypeId = m.MeasurementTypeId
};
}
}
/* Check warning interval */
if (warning != null)
{
foreach (Warning w in PastWarnings)
{
/* Remove old warnings */
if (w.Timestamp < DateTime.Now.AddHours(-1))
{
PastWarnings.Remove(w);
}
}
/* If there was alredy a warning of this type for this station in the last hour*/
if (PastWarnings.Where(w => w.StationId == m.StationId && w.TypeId == m.MeasurementTypeId).Any())
{
return;
}
PastWarnings.Add(warning);
Station station = await stationDao.FindByIdAsync(m.StationId);
string prov = (await addressManager.GetProvinceForAddressId(station.AddressId)).Name;
this.Tweet("Warning: " + warning.Type.ToString() + " for province '" + prov + "'");
}
}
