/// <summary>
/// Adds a product to the inventory; a new reference to the product is added if it didnt already
/// exist, otherwise just increases a product's quantity
/// </summary>
/// <param name="product"></param>
/// <param name="quantity"></param>
public void Add(Product product, int quantity)
{
// Validate quantity
if (quantity < 1)
{
throw new ArgumentException("Quantity added should be 1 or more.", nameof(quantity));
}
// Cannot add a null product
if (product == null)
{
throw new ArgumentNullException("Product cannot be null.", nameof(product));
}
// Fetch the item with specified product from inventory's list
Library.Item listItem = GetItem(product);
// If inventory does not have the item, add a new item with that product and quantity
if (listItem == null)
{
listItem = new Library.Item
{
Product = product,
Quantity = quantity
};
MyList.Add(listItem);
}
// If inventory already has product, increase quantity of that product
else
{
listItem.Quantity += quantity;
}
}
public static Entities.Items Map(Library.Item item) => new Entities.Items
{
ItemId = item.Id,
Name = item.Name,
Price = item.Price,
SecurityLevel = (long)item.SecurityLevel
};
public static Item Map(Library.Item r) => new Item
{
ItemId = r.ItemID,
Name = r.Name,
Description = r.Description,
NumDice = r.NumDice,
NumSides = r.NumSides,
Mods = r.Mods
};
public static Library.Item MapInventoryItem(Entities.InventoryItems dbmodel)
{
Library.Item result = new Library.Item
{
Product = MapProduct(dbmodel.Product),
Quantity = dbmodel.Quantity,
};
return(result);
}
/* --------------------------------------------------------- */
/* Item to OrderItems Mapping */
public static Entities.OrderItems MapOrderItem(Library.Item modelI, Library.Order modelO)
{
Entities.OrderItems result = new Entities.OrderItems
{
OrderId = modelO.OrderID,
ProductId = modelI.Product.ID,
Quantity = modelI.Quantity,
};
return(result);
}
public static Library.Item MapOrderItem(Entities.OrderItems dbmodel)
{
Library.Item result = new Library.Item
{
// Should this be changed?
//ItemID = dbmodel.OrderItem,
Product = MapProduct(dbmodel.Product),
Quantity = dbmodel.Quantity
};
return(result);
}
/// <summary>
/// Removes a set amount of product from the inventory
/// </summary>
/// <remarks>
/// If the set amount will reduce the product quantity to 0, remove product from the inventory
/// </remarks>
/// <param name="product"></param>
/// <param name="quantity"></param>
public void Remove(Product product, int quantity)
{
// Validate quantity
if (quantity < 1)
{
throw new ArgumentException("Quantity added should be 1 or more.", nameof(quantity));
}
// Cannot add a null product
if (product == null)
{
throw new ArgumentNullException("Product cannot be null.", nameof(product));
}
// Fetch the item with specified product from inventory's list
Library.Item listItem = GetItem(product);
// If inventory does not have the item, add a new item with that product and quantity
if (listItem == null)
{
Console.WriteLine("Item does not exist in inventory.");
throw new ArgumentException("Item does not exist in inventory.", nameof(product));
}
// Amount of product left after decreasing
int quantityLeft = listItem.Quantity - quantity;
// If leftover quantity would be less than 0, throw exception
if (quantityLeft < 0)
{
throw new ArgumentException("Quantity being removed is more than in inventory.", nameof(quantity));
}
// If leftover quantity would be 0, simply remove product from list
if (quantityLeft == 0)
{
MyList.Remove(listItem);
}
// If leftoever quantity is some positive number, proceed with decreasing quantity
if (quantityLeft > 0)
{
listItem.Quantity -= quantity;
}
}
/*------------------------------------------------------*/
/* Item to InventoryItems Mapping */
public static Entities.InventoryItems MapInventoryItem(Library.Location modelL, Library.Item modelP)
{
Entities.InventoryItems result = new Entities.InventoryItems
{
Product = MapProduct(modelP.Product),
ProductId = modelP.Product.ID,
Quantity = modelP.Quantity,
LocationId = modelL.Id,
Location = MapLocation(modelL)
};
return(result);
}
/// <summary>
/// Displays a single item
/// </summary>
/// <param name="item"></param>
public static void DisplayItem(Library.Item item)
{
Console.WriteLine($"Name:\t{item.Product.Name} | Quantity:\t{item.Quantity}\n");
}
public void UpdateItem(Library.Item item)
{
_db.Entry(_db.Item.Find(item.ItemID)).CurrentValues.SetValues(Mapper.Map(item));
}
public void CreateItem(Library.Item item)
{
_db.Add(Mapper.Map(item));
}
