private async void Handle(OrderCreated e)
{
Console.WriteLine($"Order #{e.OrderNumber} created.");
using (var dbContext = new StoreDBContext())
{
dbContext.Orders.Add(new Order {
OrderNumber = e.OrderNumber, Shipped = false
});
await dbContext.SaveChangesAsync();
}
}
private ulong?GetLastSequenceNumber()
{
using (var dbContext = new StoreDBContext())
{
var info = dbContext.ShippingInfo.FirstOrDefault();
if (info == null)
{
return(null);
}
return(info.LastSeqNr);
}
}
private async void Handle(OrderCancelled e)
{
Console.WriteLine($"Order #{e.OrderNumber} cancelled.");
using (var dbContext = new StoreDBContext())
{
var order = dbContext.Orders.FirstOrDefault(o => o.OrderNumber == e.OrderNumber);
if (order != null)
{
dbContext.Orders.Remove(order);
await dbContext.SaveChangesAsync();
}
}
}
private async void Handle(OrderCompleted e)
{
Console.WriteLine($"Order #{e.OrderNumber} completed.");
using (var dbContext = new StoreDBContext())
{
var order = dbContext.Orders.FirstOrDefault(o => o.OrderNumber == e.OrderNumber);
if (order != null)
{
order.ShippingAddress = e.ShippingAddress;
await dbContext.SaveChangesAsync();
}
}
}
private async void Handle(OrderShipped e)
{
Console.WriteLine($"Order #{e.OrderNumber} shipped.");
using (var dbContext = new StoreDBContext())
{
var order = dbContext.Orders.FirstOrDefault(o => o.OrderNumber == e.OrderNumber);
if (order != null)
{
// here shipping should be handled
// e.g. a shipping manifest for the shipping provider is printed
order.Shipped = true;
await dbContext.SaveChangesAsync();
}
}
}
private async void UpdateLastSequenceNumber(ulong sequenceNumber)
{
using (var dbContext = new StoreDBContext())
{
var info = dbContext.ShippingInfo.FirstOrDefault();
if (info == null)
{
dbContext.ShippingInfo.Add(new ShippingInfo {
Id = 0, LastSeqNr = sequenceNumber
});
}
else
{
info.LastSeqNr = sequenceNumber;
}
await dbContext.SaveChangesAsync();
}
}
private async void Handle(ProductOrdered e)
{
Console.WriteLine($"Product #{e.ProductNumber} added to order #{e.OrderNumber}.");
using (var dbContext = new StoreDBContext())
{
var order = dbContext.Orders.FirstOrDefault(o => o.OrderNumber == e.OrderNumber);
if (order != null)
{
order.Products.Add(new OrderedProduct
{
Id = Guid.NewGuid().ToString("N"),
ProductNumber = e.ProductNumber
});
await dbContext.SaveChangesAsync();
}
}
}
private async void Handle(ProductRemoved e)
{
Console.WriteLine($"Product #{e.ProductNumber} removed from order #{e.OrderNumber}.");
using (var dbContext = new StoreDBContext())
{
var order = dbContext.Orders.FirstOrDefault(o => o.OrderNumber == e.OrderNumber);
if (order != null)
{
dbContext.Entry(order).Collection(o => o.Products).Load();
var product = order.Products.FirstOrDefault(p => p.ProductNumber == e.ProductNumber);
if (product != null)
{
order.Products.Remove(product);
await dbContext.SaveChangesAsync();
}
}
}
}
