private PurchaseOrderLine[][] GetAllPremutations(IRequirement requirement, IList <Stock> stocks)
{
var vendors = new PurchaseOrderLine[stocks.Count][];
var maxAvailable = 0;
for (int i = 0; i < stocks.Count; i++)
{
vendors[i] = GetLines(requirement.Quantity, stocks[i]);
maxAvailable += stocks[i].Quantity;
}
if (maxAvailable == 0)
{
return(new PurchaseOrderLine[0][]);
}
var premuter = new Premuting <PurchaseOrderLine>(vendors);
var result = new List <PurchaseOrderLine[]>();
var target = Math.Min(maxAvailable, requirement.Quantity);
premuter.Premute((x, y, z) =>
{
if (IsValidCombination(x, target))
{
result.Add(x.Where(y => y.Quantity > 0).ToArray());
}
});
return(result.ToArray());
}
protected override void AllocateAll(IRequirementBatch batch)
{
Reset();
var requirements = batch.Unallocated
.Select(x => GetAllPremutations(x, batch.GetAvailableStock(x.Product).ToList()))
.ToArray();
var premuter = new Premuting <PurchaseOrderLine[]>(requirements);
premuter.Premute((combination, current, total) => ProcessPo(batch, combination, current, total));
foreach (var item in _cheapest)
{
batch.AddPurchaseOrderLine(item);
}
;
OnProgress(true);
Console.WriteLine();
Console.WriteLine($"{nameof(BestCombinationAllocator)} - Cheapest {_lowestTotal} Most expensive: {_highestTotal}");
}
static void PreMute()
{
var data1 = new string[3][];
data1[0] = new string[] { "1", "2", "3", "4", "5", "6" };
data1[1] = new string[] { "a", "b", "c", "d", "e" };
data1[2] = new string[] { "A", "B", "C", "D", "E", "F", "G", "H", "I" };
var premuter = new Premuting <string>(data1);
//var stopwatch = new Stopwatch();
//stopwatch.Start();
//var mutations = premuter.GetPremutations();
//stopwatch.Stop();
//using (var progress = new ProgressBar())
//{
// for (int i = 0; i <= 1000; i++)
// {
// progress.Report((double)i / 100);
// Thread.Sleep(20);
// }
//}
//Console.WriteLine("Done.");
var progress = new ProgressBar();
premuter.Premute((x, y, z) =>
{
//Console.WriteLine($"{string.Join('-', x)}");
progress.Report(z / y);
});
progress.Dispose();
Console.ReadKey();
}
