static void IncreaseMoragsOrder(Database data)
{
Console.WriteLine("--Morag is now ordering 1000 happy meals--");
List<Order> orders = data.orders;
orders
.First((Order x) => x.Customer.Name == "Morag")
.Volume = 1000;
data.orders = orders;
PrintOutput("Bulk orders", bulkOrders);
}
static void MoveBrendaToCambridge(Database data)
{
Console.WriteLine("--Brenda has moved to Cambridge--");
List<Order> orders = data.orders;
orders
.First((Order x) => x.Customer.Name == "Brenda")
.Customer.Location = "Cambridge";
data.orders = orders;
PrintOutput("Orders to Cambridge", ordersToCambridge);
}
static void Main(string[] args)
{
Database data = new Database();
ordersFromMicrosoft = new ListOutput();
ordersToCambridge = new ListOutput();
bulkOrders = new ListOutput();
averageOrdersToScotland = new IntOutput();
BindingsManager.CreateBinding(
data.GetBindPoint("orders"),
ListArrow.Filter((Order x) => x.Supplier.Name == "Microsoft")
.OrderBy((Order x, Order y) => x.Customer.Name.CompareTo(y.Customer.Name)),
ordersFromMicrosoft.GetBindPoint("Orders"));
BindingsManager.CreateBinding(
data.GetBindPoint("orders"),
ListArrow.Filter((Order x) => x.Customer.Location == "Cambridge")
.OrderBy((Order x, Order y) => x.Customer.Name.CompareTo(y.Customer.Name)),
ordersToCambridge.GetBindPoint("Orders"));
BindingsManager.CreateBinding(
data.GetBindPoint("orders"),
ListArrow.Filter((Order x) => x.Volume > 30)
.OrderBy((Order x, Order y) => x.Customer.Name.CompareTo(y.Customer.Name)),
bulkOrders.GetBindPoint("Orders"));
var averagingArrow = Op.Split<IEnumerable<int>>()
.Combine(Op.And(
ListArrow.Foldl((int x, int y) => x + y, 0),
ListArrow.Foldl((int x, int y) => x + 1, 0)))
.Unsplit((int total, int count) => total / count);
BindingsManager.CreateBinding(
data.GetBindPoint("orders"),
ListArrow.Filter((Order x) => x.Customer.Location == "Glasgow" || x.Customer.Location == "Aberdeen")
.Map((Order x) => x.Volume)
.Combine(averagingArrow),
averageOrdersToScotland.GetBindPoint("Result"));
data.Initialise();
PrintOutput("Orders from Microsoft", ordersFromMicrosoft);
PrintOutput("Orders to Cambridge", ordersToCambridge);
PrintOutput("Bulk orders", bulkOrders);
Console.WriteLine("Average orders to Scotland: {0}", averageOrdersToScotland.Result);
Console.WriteLine();
IncreaseMoragsOrder(data);
MoveBrendaToCambridge(data);
MicrosoftTakeover(data);
}
static void MicrosoftTakeover(Database data)
{
Console.WriteLine("--Microsft have bought McDonald's--");
List<Order> orders = data.orders;
orders
.Where((Order x) => x.Supplier.Name == "McDonald's").ToList()
.ForEach((Order x) => x.Supplier.Name = "Microsoft");
data.orders = orders;
PrintOutput("Orders from Microsoft", ordersFromMicrosoft);
}
