public double CalculateCurrentBudget(Budget budget)
{
return(budget.Amount - CalculateSavings(budget) - SumPastExpenses(budget));
}
public double CalculateRemainingBudget(Budget budget)
{
return(CalculateCurrentBudget(budget) - CalculateTodaysAllowance(budget));
}
public double SumPastExpenses(Budget budget)
{
return(GetPastExpenses(budget).Sum(expense => expense.Amount));
}
public double SumTodaysExpenses(Budget budget)
{
return(GetTodaysExpenses(budget).Sum(expense => expense.Amount));
}
public IEnumerable <Expense> GetTodaysExpenses(Budget budget)
{
return(budget.Expenses.Where(expense => expense.Date == _dateProvider.Today()));
}
public bool IsTodayInBudgetScope(Budget budget)
{
return(_dateProvider.Today() >= budget.Start &&
_dateProvider.Today() <= budget.End);
}
public int GetNumberOfTotalDays(Budget budget)
{
return((int)(budget.End - budget.Start).TotalDays + 1);
}
public int GetNumberOfRemainingDays(Budget budget)
{
return(_dateProvider.Today() < budget.End
? (int)(budget.End - _dateProvider.Today()).TotalDays
: 0);
}
public int GetNumberOfPastDays(Budget budget)
{
return(_dateProvider.Today() > budget.Start
? (int)(_dateProvider.Today() - budget.Start).TotalDays
: 0);
}