internal int AccumulatePrice(int quantity, IPriceStrategy priceStrategy)
{
IEnumerable <Batch> strategiedBatches = priceStrategy.Apply(this.batches);
int totalPrice = 0;
var stockProcessor = new StockProcessor(quantity);
stockProcessor.Process(strategiedBatches, (q, batch) => totalPrice += batch.GetPriceFor(q));
return(totalPrice);
}
internal void ReduceStock(int quantity, IPriceStrategy priceStrategy)
{
IEnumerable <Batch> strategiedBatches = priceStrategy.Apply(this.batches);
var stockProcessor = new StockProcessor(quantity);
stockProcessor.Process(strategiedBatches, (q, batch) =>
{
batch.ReduceQuantity(q);
if (batch.IsEmpty())
{
this.batches.Remove(batch);
}
});
}