public InvoiceManager(ProductManager productManager, CustomerManager customerManager)
{
ProductManager = productManager;
CustomerManager = customerManager;
}
public void AddInvoice(Invoice invoice, IEnumerable <InvoiceItem> items, decimal payment)
{
using (var transaction = new TransactionScope())
using (var connection = new ConnectionScope())
{
// Insert Invoice.
invoice.Insert();
foreach (var item in items)
{
item.InvoiceId = invoice.Id;
}
items.Insert();
// Update Inventory.
foreach (var item in items)
{
var product = ProductManager.GetProduct(item.ProductId);
if (product == null)
{
throw new Exception("Product not found.");
}
// Stock Correction?
if (product.QuantityOnHand < item.Quantity)
{
ProductManager.AddMovement(new ProductMovement
{
Id = Guid.NewGuid(),
ProductId = item.ProductId,
DateTime = invoice.DateTime,
MovementType = ProductMovementType.Correction,
Quantity = item.Quantity - product.QuantityOnHand,
SourceId = invoice.Id,
SourceItemNumber = item.ItemNumber
});
}
// Movement.
ProductManager.AddMovement(new ProductMovement
{
Id = Guid.NewGuid(),
ProductId = item.ProductId,
DateTime = invoice.DateTime,
MovementType = ProductMovementType.Invoice,
Quantity = item.Quantity * -1,
SourceId = invoice.Id,
SourceItemNumber = item.ItemNumber
});
}
// Add Customer Transaction.
CustomerManager.AddTransaction(new CustomerTransaction()
{
Id = Guid.NewGuid(),
CustomerId = invoice.CustomerId,
DateTime = invoice.DateTime,
Type = CustomerTransactionType.Invoice,
Amount = items.Aggregate(0.0m, (total, item) => total += item.Quantity * Math.Round(item.Price * (100 - item.Discount) / 100, 2, MidpointRounding.AwayFromZero)),
SourceId = invoice.Id
});
// Payment?
if (payment > 0)
{
CustomerManager.AddTransaction(new CustomerTransaction()
{
Id = Guid.NewGuid(),
CustomerId = invoice.CustomerId,
DateTime = invoice.DateTime,
Type = CustomerTransactionType.Payment,
Amount = payment * -1,
SourceId = invoice.Id
});
}
transaction.Complete();
}
}
public ProductService(ProductManager manager)
{
Manager = manager;
}
public InvoiceManager(ProductManager productManager, CustomerManager customerManager)
{
ProductManager = productManager;
CustomerManager = customerManager;
}
