protected override PayeInternalBracket[] GetBracketsForPeriod()
{
int year = TaxYear, period = CalculationContainer.n, periods = (int)CalculationContainer.Periods;
bool scottish = CalculationContainer.TaxCode.IsScotlandTax;
Tuple <int, int, int, bool> brKey;
if (BracketCache.ContainsKey(brKey = new Tuple <int, int, int, bool>(year, period, periods, scottish)))
{
return(BracketCache[brKey]);
}
var taxYearBrackets = GetBracketsFromProvider(TaxYear > 2016 ? scottish : false);
var periodBrackets = new List <PayeInternalBracket>();
decimal lastC = 0, lastK = 0;
foreach (var taxYearBracket in taxYearBrackets)
{
#pragma warning disable IDE0017 // Simplify object initialization
var periodBracket = new PayeInternalBracket();
#pragma warning restore IDE0017 // Simplify object initialization
periodBracket.R = taxYearBracket.Multiplier;
periodBracket.B = taxYearBracket.To - taxYearBracket.From;
periodBracket.C = periodBracket.B + lastC;
lastC = periodBracket.C;
periodBracket.c = TaxMath.Factor(periodBracket.C, period, periods);
periodBracket.c = TaxMath.Truncate(periodBracket.c, 4);
periodBracket.v = Math.Ceiling(periodBracket.c);
periodBracket.K = lastK + TaxMath.Multiply(periodBracket.B, periodBracket.R, TaxMath.MultiplicationAccuracy.High);
lastK = periodBracket.K;
periodBracket.k = TaxMath.Factor(periodBracket.K, period, periods);
periodBracket.k = TaxMath.Truncate(periodBracket.k, 4);
periodBrackets.Add(periodBracket);
}
BracketCache[brKey] = periodBrackets.ToArray();
return(periodBrackets.ToArray());
}
