public static XElement ValueToXElement(string name, AirQualityValue node)
{
if (node != null)
{
return(new XElement(name,
new XAttribute(nameof(node.LastDate), node.LastDate.ToString(CultureInfo.InvariantCulture)),
node.Value.ToString(CultureInfo.InvariantCulture)));
}
else
{
return(null);
}
}
public static AirQualityValue XElementToNode(XElement element)
{
if (element == null)
{
return(null);
}
else
{
AirQualityValue value = new AirQualityValue
{
LastDate = DateTime.Parse((string)element.Attribute(nameof(value.LastDate)), CultureInfo.InvariantCulture),
Value = double.Parse(element.Value, CultureInfo.InvariantCulture)
};
return(value);
}
}
public CalculatedPollution CalculatePollution(DateTime measurementDate, Measurement measurement, AirQualityValue value, double?index)
{
CalculatedPollution result = new CalculatedPollution {
Measurement = measurement, Index = value?.Value ?? 0
};
bool isOutdated = false;
if (value == null || (isOutdated = (measurementDate - value.LastDate).TotalHours > 4))
{
result.Pollution = AirPollution.Low;
result.Index = 0;
}
else
{
if (index.Value < 50)
{
result.Pollution = AirPollution.Low;
}
else if (index < 75)
{
result.Pollution = AirPollution.Mid;
}
else if (index < 100)
{
result.Pollution = AirPollution.High;
}
else
{
result.Pollution = AirPollution.VeryHigh;
}
result.Index = index.Value;
}
string outdatedText = isOutdated ? "OUTDATED " : "";
logger.LogInfo().WithCategory(LogCategory.AirQuality)
.WithMessage($"{outdatedText}{measurement} is {result.Pollution} ({value?.Value} with index {result.Index:0.00}) on {value?.LastDate}")
.Commit();
return(result);
}
