public Product(ProductType invType)
{
Name = invType.Name;
ProductTypeId = invType.Id;
ProductType = invType;
ManufacturerTypeId = invType.ManufacturerTypeId;
TotalDuration = 0;
Quantity = 0;
}
private static int CalculateTimeToManufacture(ProductType productType, ICollection<int> typesAlreadyAdded)
{
//if supports parallel manufacturing then we only need to include the duration once.
var supportsParallelManufacturing = productType.ManufacturerType.SupportsParallelManufacturing;
var parallelDuration = 0;
if (supportsParallelManufacturing)
{
if (typesAlreadyAdded.All(x => x != productType.Id))
{
//if its not in city storage then add it to the total duration
parallelDuration = productType.TimeToManufacture ?? 0;
typesAlreadyAdded.Add(productType.Id);
}
}
else
parallelDuration = productType.TimeToManufacture ?? 0;
return parallelDuration;
}
/// <summary>
/// Recurses through required products and calculates the total time required to produce the product
/// based on product type duration and quanity of child products required. If city storage
/// is specified then the amount in storage is subrtacted from the total durations and the
/// quantity of items in storage is decremented to reflect the use of the required products.
/// </summary>
/// <param name="productType"></param>
/// <param name="typesAlreadyAdded"></param>
/// <param name="includeRequiredTypes"></param>
/// <param name="cityStorage">If included then duration is decreased by what's in storage.</param>
/// <param name="productsToUpdate"></param>
/// <returns></returns>
private int CalculateInventoryItemDurationByType(ProductType productType, ICollection<int> typesAlreadyAdded, bool includeRequiredTypes, CityStorage cityStorage, Product[] productsToUpdate)
{
// if we have one in storage then we consider the duration already having been elapsed.
var cityStorageSpecified = cityStorage != null;
var cityStorageDecremented = DecrementCityStorageByProductType(productType, cityStorage);
if (cityStorageDecremented)
return 0;
var productTypeTotalDuration = CalculateTimeToManufacture(productType, typesAlreadyAdded);
if (!includeRequiredTypes)
return productTypeTotalDuration;
foreach (var prod in productsToUpdate)
{
var productTotalDuration = 0;
//product types should always have any product type.
var requiredProductType = _productTypes.First(x => x.Id == prod.ProductTypeId);
if (prod.RequiredProducts == null)
prod.RequiredProducts = requiredProductType.RequiredProducts.Select(x => x.Clone()).ToArray();
for (var a = 0; a < prod.Quantity; a++)
{
productTotalDuration += CalculateInventoryItemDurationByType(requiredProductType, typesAlreadyAdded, true, cityStorage, prod.RequiredProducts);
}
//if city storage is not null then set remaining time
if (cityStorageSpecified)
{
if (!prod.RemainingDuration.HasValue)
prod.RemainingDuration = 0;
prod.RemainingDuration += productTotalDuration;
}
else
{
if (!prod.TotalDuration.HasValue)
prod.TotalDuration = 0;
prod.TotalDuration += productTotalDuration;
}
productTypeTotalDuration += productTotalDuration;
}
return productTypeTotalDuration;
}
private static bool DecrementCityStorageByProductType(ProductType productType, CityStorage cityStorage)
{
if (cityStorage==null) return false;
var storageProduct = cityStorage.CurrentInventory.FirstOrDefault(x => x.ProductTypeId == productType.Id);
if (storageProduct == null || storageProduct.Quantity <= 0) return false;
storageProduct.Quantity -= 1;
return true;
}
private static Product[] PopulateRequiredProducts(ProductType[] productTypes, Product[] products)
{
foreach (var rp in products)
{
var pd = productTypes.FirstOrDefault(x => x.Id == rp.ProductTypeId);
rp.RequiredProducts = pd != null ? pd.RequiredProducts.ToArray() : new Product[0];
}
return products;
}