public ProductPurchase(Product product, int quantity)
{
Id = Guid.NewGuid();
if (product == null) throw new ArgumentNullException("Product cannot be null.");
if (quantity < 1) throw new ArgumentException("The quantity should be at least 1.");
Product = product;
ProductQuantity = quantity;
}
public ProductReservation(Product product, int expiryInMinutes, int quantity)
{
if (product == null) throw new ArgumentNullException("Product cannot be null.");
if (quantity < 1) throw new ArgumentException("The quantity should be at least 1.");
Product = product;
Id = Guid.NewGuid();
Expiry = DateTime.Now.AddMinutes(expiryInMinutes);
Quantity = quantity;
}
private void InitialiseDatabase()
{
DatabaseProducts = new List<Product>();
Product firstProduct = new Product()
{
Allocation = 200,
Description = "Product A",
ID = Guid.Parse("13a35876-ccf1-468a-88b1-0acc04422243"),
Name = "A"
};
Product secondProduct = new Product()
{
Allocation = 500,
Description = "Product B",
ID = Guid.Parse("f5efdfe0-7933-4efc-a290-03d20014703e"),
Name = "B"
};
DatabaseProducts.Add(firstProduct);
DatabaseProducts.Add(secondProduct);
DatabaseProductPurchases = new List<ProductPurchase>();
DatabaseProductPurchases.Add(new ProductPurchase(firstProduct, 10) { Id = Guid.Parse("0ede40e0-5a52-48b1-8578-de1891c5a7f0") });
DatabaseProductPurchases.Add(new ProductPurchase(firstProduct, 20) { Id = Guid.Parse("5868144e-e04d-4c1f-81d7-fc671bfc52dd") });
DatabaseProductPurchases.Add(new ProductPurchase(secondProduct, 12) { Id = Guid.Parse("8e6195ac-d448-4e28-9064-b3b1b792895e") });
DatabaseProductPurchases.Add(new ProductPurchase(secondProduct, 32) { Id = Guid.Parse("f66844e5-594b-44b8-a0ef-2a2064ec2f43") });
DatabaseProductPurchases.Add(new ProductPurchase(secondProduct, 1) { Id = Guid.Parse("0e73c8b3-f7fa-455d-ba7f-7d3f1bc2e469") });
DatabaseProductPurchases.Add(new ProductPurchase(secondProduct, 4) { Id = Guid.Parse("e28a3cb5-1d3e-40a1-be7e-e0fa12b0c763") });
DatabaseProductReservations = new List<ProductReservation>();
DatabaseProductReservations.Add(new ProductReservation(firstProduct, standardReservationTimeoutMinutes, 10) { HasBeenConfirmed = true, Id = Guid.Parse("a2c2a6db-763c-4492-9974-62ab192201fe") });
DatabaseProductReservations.Add(new ProductReservation(firstProduct, standardReservationTimeoutMinutes, 5) { HasBeenConfirmed = false, Id = Guid.Parse("37f2e5ac-bbe0-48b0-a3cd-9c0b47842fa1") });
DatabaseProductReservations.Add(new ProductReservation(firstProduct, standardReservationTimeoutMinutes, 13) { HasBeenConfirmed = true, Id = Guid.Parse("b9393ea4-6257-4dea-a8cb-b78a0c040255") });
DatabaseProductReservations.Add(new ProductReservation(firstProduct, standardReservationTimeoutMinutes, 3) { HasBeenConfirmed = false, Id = Guid.Parse("a70ef898-5da9-4ac1-953c-a6420d37b295") });
DatabaseProductReservations.Add(new ProductReservation(secondProduct, standardReservationTimeoutMinutes, 17) { Id = Guid.Parse("85eaebfa-4be4-407b-87cc-9a9ea46d547b") });
DatabaseProductReservations.Add(new ProductReservation(secondProduct, standardReservationTimeoutMinutes, 3) { Id = Guid.Parse("39d4278e-5643-4c43-841c-214c1c3892b0") });
DatabaseProductReservations.Add(new ProductReservation(secondProduct, standardReservationTimeoutMinutes, 9) { Id = Guid.Parse("86fff675-e5e3-4e0e-bcce-36332c4de165") });
firstProduct.PurchasedProducts = (from p in DatabaseProductPurchases where p.Product.ID == firstProduct.ID select p).ToList();
firstProduct.ReservedProducts = (from p in DatabaseProductReservations where p.Product.ID == firstProduct.ID select p).ToList();
secondProduct.PurchasedProducts = (from p in DatabaseProductPurchases where p.Product.ID == secondProduct.ID select p).ToList();
secondProduct.ReservedProducts = (from p in DatabaseProductReservations where p.Product.ID == secondProduct.ID select p).ToList();
}
private void ClearPurchasedAndReservedProducts(Product product)
{
DatabaseProductPurchases.RemoveAll(p => p.Id == product.ID);
DatabaseProductReservations.RemoveAll(p => p.Id == product.ID);
}
public void Save(Product product)
{
ClearPurchasedAndReservedProducts(product);
InsertPurchasedProducts(product);
InsertReservedProducts(product);
}
private void InsertReservedProducts(Product product)
{
DatabaseProductReservations.AddRange(product.ReservedProducts);
}
private void InsertPurchasedProducts(Product product)
{
DatabaseProductPurchases.AddRange(product.PurchasedProducts);
}