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BillingData: Add GetCurveValueAt(), extracted from PaymentBillingData

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Lorenz Stechauner
2024-01-20 02:33:05 +01:00
parent bf90543ad8
commit ecbc9c2d82
2 changed files with 27 additions and 21 deletions
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20
Elwig/Helpers/Billing/PaymentBillingData.cs
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@ -49,25 +49,7 @@ namespace Elwig.Helpers.Billing {
public decimal CalculatePrice(string sortid, string? attrid, string qualid, bool gebunden, double oe, double kmw) {
var curve = GetQualityCurve(qualid, sortid, attrid) ?? GetCurve(sortid, attrid);
var d = (gebunden ? curve.Gebunden : null) ?? curve.Normal;
if (d.Count == 1) return d.First().Value;
var r = curve.Mode == CurveMode.Oe ? oe : kmw;
var lt = d.Keys.Where(v => v <= r);
var gt = d.Keys.Where(v => v >= r);
if (!lt.Any()) {
return d[gt.Min()];
} else if (!gt.Any()) {
return d[lt.Max()];
}
var max = lt.Max();
var min = gt.Min();
if (max == min) return d[r];
var p1 = ((decimal)r - (decimal)min) / ((decimal)max - (decimal)min);
var p2 = 1 - p1;
return d[min] * p2 + d[max] * p1;
return GetCurveValueAt((gebunden ? curve.Gebunden : null) ?? curve.Normal, curve.Mode == CurveMode.Oe ? oe : kmw);
}
private Curve LookupCurve(JsonValue val) {