public PurchasePart CreatePurchase(IDemandToProvider demand, decimal amount)
{
var articleToPurchase = ArticleToBusinessPartners.Single(a => a.ArticleId == demand.ArticleId);
var purchase = new Purchase()
{
BusinessPartnerId = articleToPurchase.BusinessPartnerId,
DueTime = articleToPurchase.DueTime,
};
//amount to be purchased has to be raised to fit the packsize
amount = Math.Ceiling(amount / articleToPurchase.PackSize) * articleToPurchase.PackSize;
var purchasePart = new PurchasePart()
{
ArticleId = demand.ArticleId,
Quantity = (int)amount,
DemandProviderPurchaseParts = new List <DemandProviderPurchasePart>(),
PurchaseId = purchase.Id,
};
purchase.PurchaseParts = new List <PurchasePart>()
{
purchasePart
};
Purchases.Add(purchase);
PurchaseParts.Add(purchasePart);
SaveChanges();
return(purchasePart);
}
public decimal GetAmountBought(int articleId)
{
var purchaseParts = PurchaseParts.Where(a => a.ArticleId == articleId && a.State != State.Finished);
var purchasedAmount = 0;
foreach (var purchasePart in purchaseParts)
{
purchasedAmount += purchasePart.Quantity;
}
return(purchasedAmount);
}
public decimal GetPlannedStock(Stock stock, IDemandToProvider demand)
{
var amountReserved = GetReserved(demand.ArticleId);
var amountBought = 0;
var articlesBought = PurchaseParts.Where(a => a.ArticleId == demand.ArticleId && a.State != State.Finished);
foreach (var articleBought in articlesBought)
{
amountBought += articleBought.Quantity;
}
//just produced articles have a reason and parents they got produced for so they cannot be reserved by another requester
var amountJustProduced = Demands.OfType <DemandProductionOrderBom>()
.Where(a => (a.State != State.Finished || a.ProductionOrderBom.ProductionOrderParent.ProductionOrderWorkSchedule.All(b => b.ProducingState == ProducingState.Created || b.ProducingState == ProducingState.Waiting)) &&
a.ArticleId == demand.ArticleId &&
a.DemandProvider.Any() &&
a.DemandProvider.All(b => b.State == State.Finished)).Sum(a => a.Quantity);
//plannedStock is the amount of this article in stock after taking out the amount needed
var plannedStock = stock.Current + amountBought - demand.Quantity - amountReserved - amountJustProduced;
return(plannedStock);
}
