//---------------------------------------------------------------------------------------------
public async Task <Goal> CreateGoalAsync(int userId,
string name,
int periodInHours,
int frequencyWithinPeriod,
DateTime startDate)
{
await ValidateUserExists(userId);
ValidateGoalName(name);
ValidatePeriod(periodInHours);
ValidateFrequency(frequencyWithinPeriod);
var goal = new Goal
{
Name = name,
UserId = userId,
PeriodInHours = periodInHours,
FrequencyWithinPeriod = frequencyWithinPeriod,
StartDate = startDate
};
_goalDb.AddGoal(goal);
await _goalDb.SaveAsync();
return(goal);
}