public Product GetProduct(string listingId, string productId)
{
Product product = Listings.Find(l => l.ID.Equals(listingId) || l.Name.Equals(listingId)).Products.Where(p => p.ProductID.Equals(productId)).First();
if (product == null)
{
Console.WriteLine("Product with listing identifier {0} and product id {1} does not exist.", listingId, productId);
}
return(product);
}
public void AddListing(Listing listing)
{
Listing duplicate = Listings.Find(li => li.ID.Equals(listing.ID));
if (duplicate != null)
{
Console.WriteLine("Listing not added. Trying to add listing with duplicate ID. Did you mean to update?");
Console.WriteLine("Conflicting Materials:\nName: {0} ID: {1}\nName: {2} ID: {3}", listing.Name, listing.ID, duplicate.Name, duplicate.ID);
return;
}
Listings.Add(listing);
}
public Listing GetListing(Predicate <Listing> match)
{
return(Listings.Find(match));
}