public static List <SmProduct> Build(ILogger logger, List <Product> products,
List <ProductHierarchy> productHierarchies, List <ProductPriceLadder> productPriceLadders,
List <PriceLadderValue> priceLadderValues, Dictionary <int, decimal> hierarchySellThrough,
Dictionary <int, Tuple <int, decimal> > productSalesTax, List <ProductParameterValues> productParameterValues,
List <ProductMarkdownConstraint> productMarkdownConstraint, List <ProductSalesFlexFactor> salesFlexFactor,
List <ProductMinimumAbsolutePriceChange> productMinimumAbsolutePriceChange,
List <ProductWeekParameterValues> productWeekParameterValues,
List <ProductWeekMarkdownTypeParameterValues> productWeekMarkdownTypeParameterValues)
{
var priceLadders = SmPriceLadder.Build(priceLadderValues);
return(products?
.Select(x => Build(logger, x, productHierarchies, productPriceLadders, priceLadders,
hierarchySellThrough, productSalesTax, productParameterValues, productMarkdownConstraint, salesFlexFactor, productMinimumAbsolutePriceChange, productWeekParameterValues, productWeekMarkdownTypeParameterValues))
.Where(x => x != null)
.ToList());
}
public static List <Tuple <int, decimal> > Optimise(SmDenseSchedule schedule, SmPriceLadder priceLadder)
{
var weeks = schedule.MarkdownWeeks;
var prices = priceLadder.Values;
var width = weeks.Length;
var height = prices.Length;
var markdownCount = weeks.Length;
var minDepths = weeks.Select(x => schedule.Constraints?.SingleOrDefault(y => y.Week == x)?.Min).ToArray();
var maxDepths = weeks.Select(x => schedule.Constraints?.SingleOrDefault(y => y.Week == x)?.Max).ToArray();
if (prices.Length < markdownCount)
{
throw new ArgumentException("Insufficient number of price paths to satisfy markdown count requirement", nameof(prices));
}
var weekDiscounts = new List <Tuple <int, decimal> >();
var previousDiscounts = new List <decimal>();
for (var w = 0; w < width; w++)
{
var week = weeks[w];
var discounts = new List <decimal>();
for (var p = 0; p < height; p++)
{
var discount = prices[p];
var isLong = width - w >= markdownCount - p;
var isShort = height - p >= markdownCount - w;
var isLow = minDepths[w] != null && discount < minDepths[w];
var isHigh = maxDepths[w] != null && discount > maxDepths[w];
var isMarkdown = !previousDiscounts.Any() || discount > previousDiscounts[0];
if (isLong && isShort && !isHigh & !isLow && isMarkdown)
{
discounts.Add(discount);
}
}
weekDiscounts.AddRange(discounts.Select(x => Tuple.Create(week, x)));
previousDiscounts = discounts;
}
return(weekDiscounts);
}
public SmSchedulePricePath[] Expand(SmPriceLadder ladder)
{
var weekPrices = Optimise(this, ladder);
return(CrossProduct(MarkdownWeeks, WeekMin, WeekMax, ladder.Type, weekPrices));
}