private decimal CalculateErrorRate(int allCalls, int errorCalls)
{
if (allCalls == 0)
{
_logger.LogWarning("No calls available for error rate computation");
return(0.0M);
}
return((decimal)errorCalls / (decimal)allCalls);
}
private decimal?ComputeAverageDuration()
{
var oldestEndTime = DateTime.Now.AddHours(-24.0);
var eligibleRecords = _dbContext.CallDurations.Where(c => c.EndTime >= oldestEndTime);
if (!eligibleRecords.Any())
{
_logger.LogWarning("No records available for average duration computation.");
return(null);
}
return(eligibleRecords
.Select(x => x.DurationMilliseconds)
.Average());
}
