public async Task CreateSale(CreateSaleCommand command, CancellationToken token)
{
var products = _db.Products.Include(p => p.Inventory);
var sale = _mapper.Map <Sale>(command);
var items = _db.ItemsSold;
//make deductions from the quantity of every product that has been sold
foreach (var p in command.ProductsSold)
{
var product = await products.SingleOrDefaultAsync(x => x.Id == p.Id, token).ConfigureAwait(false);
product.Quantity -= p.Quantity;
if (product.Inventory != null)
{
product.Inventory.Quantity -= p.Quantity;
}
_db.Entry(product).State = EntityState.Modified;
var item = new ItemSold
{
ItemName = p.ItemName,
Quantity = p.Quantity,
Price = p.Price,
ProductId = product.Id
};
await items.AddAsync(item, token).ConfigureAwait(false);
}
//if there are any discounts then you can calculate before persisting.
sale.ItemsSold.AddRange(items !);
await _set.AddAsync(sale, token).ConfigureAwait(false);
}
/// <summary>
/// Executes a single sided sale of a given amount of a given <see cref = "Item">Item</see> for a given price.
/// </summary>
/// <remarks>
/// This is where the exchanged amount of Items will be <see cref = "ExchangeComponent.RemoveItem">removed</see>
/// and the exchange will be billed for the previously calculated price.
/// </remarks>
/// <param name="item">The Item to sell.</param>
/// <param name="price">The price the Item is sold for.</param>
/// <param name="amount">The amount of Items being sold.</param>
public void RegisterSale(Item item, float price, int amount = 1)
{
this.Log($"Exchange registered sale of {amount} {item} {price * amount} ({price})");
RemoveItem(item, amount);
ItemSold?.Invoke(this, new ItemSoldEventArgs(item, price, amount));
}
public override object ConvertFromString(string text, IReaderRow row, MemberMapData memberMapData)
{
// [Item ID-Item Quantity-Item Price]
if ((text ?? "").Length > 2)
{
if (text[0] == '[' && text.Last() == ']')
{
text = text.Substring(1, text.Length - 2).Trim();
if (!string.IsNullOrWhiteSpace(text))
{
var itemsSold = text.Split(',').Select(part =>
{
var parts = part.Split('-');
var itemSold = new ItemSold();
int id = 0;
int quantity = 0;
decimal price = 0;
var parsedId = int.TryParse(parts[0], out id);
var parsedQuantity = parts.Length > 1 ? int.TryParse(parts[1], out quantity) : false;
var parsedPrice = parts.Length > 2 ? decimal.TryParse(parts[2], NumberStyles.Any, CultureInfo.InvariantCulture, out price) : false;
if (parsedId)
{
itemSold.Id = id;
}
if (parsedQuantity)
{
itemSold.Quantity = quantity;
}
if (parsedPrice)
{
itemSold.Price = price;
}
return(itemSold);
}).ToList();
return(itemsSold);
}
}
}
return(new List <ItemSold>());
}