public double GetOwnPensionSavings(MonthAndYear monthAndYear)
{
TryGetValue(monthAndYear, out var categories);
double currentMonthsOwnPension = 0;
categories?.TryGetValue(Pension, out currentMonthsOwnPension);
TryGetValue(monthAndYear.PreviousMonth(), out var lastMonthCategories);
double previousMonthsOwnPension = 0;
lastMonthCategories?.TryGetValue(Pension, out previousMonthsOwnPension);
return(currentMonthsOwnPension - previousMonthsOwnPension);
}
public double GetFortune(MonthAndYear monthAndYear)
{
TryGetValue(monthAndYear, out var categories);
double currentMonthsFortune = 0;
categories?.TryGetValue(Fortune, out currentMonthsFortune);
TryGetValue(monthAndYear.PreviousMonth(), out var lastMonthCategories);
double previousMonthsFortune = 0;
lastMonthCategories?.TryGetValue(Fortune, out previousMonthsFortune);
return(currentMonthsFortune - previousMonthsFortune);
}
public double GetInvestment(MonthAndYear monthAndYear)
{
TryGetValue(monthAndYear, out var categories);
double currentMonthsInvestment = 0;
categories?.TryGetValue(Investment, out currentMonthsInvestment);
TryGetValue(monthAndYear.PreviousMonth(), out var lastMonthCategories);
double previousMonthsInvestment = 0;
lastMonthCategories?.TryGetValue(Investment, out previousMonthsInvestment);
return(currentMonthsInvestment - previousMonthsInvestment);
}
public double GetFortunesWithoutPension(MonthAndYear monthAndYear)
{
TryGetValue(monthAndYear, out var categories);
return(categories?.Where(pair => pair.Key != Pension).Select(pair => pair.Value).Sum() ?? 0);
}