public async Task <IActionResult> GetAverageTemperatureAsync([FromBody] DateIntervalInputModel intervalInputModel)
{
try
{
var data = await _dataFetcher.GetData();
return(Ok(_weatherAnalyzerService.AverageTemperature(data, intervalInputModel)));
}
catch (Exception e)
{
return(HandleException(e));
}
}
private static List <WeatherDataSample> GetDataWithinInterval(List <WeatherDataSample> data, DateIntervalInputModel timeInterval)
{
if (timeInterval != default)
{
data = data.Where(d => d.Time > timeInterval.From && d.Time < timeInterval.To).ToList();
if (data.Count == 0)
{
throw new InvalidTimeIntervalException("The time interval is outside of data range");
}
}
return(data);
}
public TemperatureValueViewModel AverageTemperature(List <WeatherDataSample> data, DateIntervalInputModel timeInterval = default)
{
var intervalData = GetDataWithinInterval(data, timeInterval);
return(new TemperatureValueViewModel
{
Value = intervalData.Average(d => d.Value)
});
}
public TemparetureDataPointViewModel LowestTemperature(List <WeatherDataSample> data, DateIntervalInputModel timeInterval = default)
{
var intervalData = GetDataWithinInterval(data, timeInterval);
var min = intervalData.Min(sample => sample.Value);
return(new TemparetureDataPointViewModel
{
Temperature = min,
Time = intervalData.FirstOrDefault(sample => sample.Value == min).Time
});
}