public async Task <Sale> CreateSaleAsync(int userId, int productId)
{
var user = await _userRepo.GetUserAsync(userId);
var product = await _productRepo.GetProductAsync(productId);
var sale = Sale.BuyProduct(user, product);
// TODO: Seperate SaveChanges, refactor code (repo pattern?).
try
{
await _userRepo.UpdateUserAsync(sale.Buyer.Id, sale.Buyer);
await _productRepo.UpdateProductAsync(sale.Product.Id, sale.Product);
await _db.Sales.AddAsync(sale);
await _db.SaveChangesAsync();
return(sale);
}
catch
{
// TODO: Seperate Savechanges can cause halve transactions.
throw new TaskCanceledException("Sale has failed.");
}
}
