public async Task <IActionResult> GetStrRateByGroupInPeriod(DateTime startDate, DateTime endDate, int daysInSlice)
{
/* Validate input */
if (endDate <= startDate.AddDays(daysInSlice))
{
return(BadRequest($"No {daysInSlice} days period between {startDate} and {endDate}"));
}
/* Separate period in slices and query them */
var queries = new List <Task <ExerciseLiftsInPeriod> >();
var currentDate = startDate;
while (currentDate < endDate)
{
queries.Add(_workoutRepository.GetExercisesAndLiftsByGroupInPeriod(currentDate, currentDate = currentDate.AddDays(daysInSlice)));
}
List <ExerciseLiftsInPeriod> periodsWithExercises = (await Task.WhenAll(queries)).ToList();
var strRates = new List <GroupStrRate>();
var exerciseTypes = periodsWithExercises.SelectMany(pe => pe.Exercises.Select(ex => new { ex.TypeId, ex.TypeName })).Distinct().ToList();
if (!exerciseTypes.Any())
{
return(NoContent());
}
foreach (var exerciseType in exerciseTypes)
{
var exerciseGroup = new GroupStrRate(exerciseType.TypeId, exerciseType.TypeName);
foreach (var period in periodsWithExercises)
{
var exercisesOfTypeInPeriod = period.Exercises.Where(e => e.TypeId == exerciseType.TypeId).ToList();
if (!exercisesOfTypeInPeriod.Any())
{
continue;
}
var groupStrRate = decimal.Round(exercisesOfTypeInPeriod.Average(x => x.Lift.AsDecimal() * x.RepCount), 2);
var strRateInPeriod = new StrRateInPeriod(groupStrRate, period.StartDate, period.EndDate);
exerciseGroup.StrRateInPeriods.Add(strRateInPeriod);
}
strRates.Add(exerciseGroup);
}
return(Ok(strRates));
}
