public Task <List <PrecipitationVm> > Handle(GetPrecipitationQuery request,
CancellationToken cancellationToken)
{
var currentDate = _dateTimeProvider.GetUtcNow();
request.WithDefaultValues(currentDate.AddDays(-2), currentDate);
int granulation = (int)(request.Granulation ?? default);
Debug.Assert(request.From != null, "request.From != null");
var fromDate = request.From.Value;
return(_applicationDbContext.WeatherStationPrecipitation
.AsNoTracking()
.Where(x => x.MeasurementStartTime >= request.From && x.MeasurementEndTime <= request.To)
.Select(x => new
{
TimestampGroup = granulation == (int)DateRangeGranulation.Year
? EF.Functions.DateDiffYear(fromDate, x.MeasurementEndTime)
: granulation == (int)DateRangeGranulation.Month
? EF.Functions.DateDiffMonth(fromDate, x.MeasurementEndTime)
: EF.Functions.DateDiffSecond(fromDate, x.MeasurementEndTime) / granulation,
x.Rain,
})
.GroupBy(x => x.TimestampGroup)
.OrderBy(x => x.Key)
.Select(g => new PrecipitationVm
{
Timestamp = DateTime.SpecifyKind(
granulation == (int)DateRangeGranulation.Year
? fromDate.AddYears(g.Key)
: granulation == (int)DateRangeGranulation.Month
? fromDate.AddMonths(g.Key)
: fromDate.AddSeconds(g.Key * granulation),
DateTimeKind.Utc),
RainSum = Math.Round(g.Sum(x => x.Rain), 3)
})
.ToListAsync(cancellationToken));
}
public Task <IEnumerable <PrecipitationVm> > GetPrecipitation(GetPrecipitationQuery query)
{
return(_apiClient.Get <GetPrecipitationQuery, IEnumerable <PrecipitationVm> >("WeatherData/precipitation", query));
}
public async Task <IActionResult> GetPrecipitation([FromQuery] GetPrecipitationQuery query)
{
return(Ok(await _mediator.Send(query)));
}
