private static OrderReport GenerateReportForOrder(
Order order,
OrderReportFormattingSettings orderReportFormattingSettings)
{
var sb = new MyStringBuilder();
sb.AppendLine("Order date: " + FormatDate(order.OrderDate));
if (!orderReportFormattingSettings.DontIncludeNumberOrOrderLines)
{
sb.AppendLine("Number of order lines: " + order.OrderLines.Length.AsString());
}
decimal total = 0m;
foreach (var orderLine in order.OrderLines)
{
var lineTotal = orderLine.ItemCount * orderLine.ItemPrice;
total += lineTotal;
sb.AppendLine(orderLine.ProductName + ": " + orderLine.ItemCount.AsString() + " * " + orderLine.ItemPrice.AsString() + "$ = " + lineTotal.AsString() + "$");
}
sb.AppendLine("Total: " + total.AsString() + "$");
return(new OrderReport(sb.ToString()));
}
static void Main(string[] args)
{
var orderReportFormattingSettings =
new OrderReportFormattingSettings(args.Length > 0 && args[0].Equals("noNumberOfLines"));
var cities = LoadAllDataWithoutOrders();
var report = GenerateReport(cities, orderReportFormattingSettings, LoadOrdersForCustomer);
SaveReport(report);
}
private static Report GenerateReport(
ImmutableArray <City> cities,
OrderReportFormattingSettings orderReportFormattingSettings,
Func <Customer, ImmutableArray <Order> > getOrdersForCustomer)
{
var sb = new MyStringBuilder();
sb.AppendLine("Number of cities: " + cities.Length.AsString());
sb.AppendLine();
foreach (var subReport in cities.Select(x => GenerateReportForCity(x, orderReportFormattingSettings, getOrdersForCustomer)))
{
sb.AppendLine(subReport.Value);
}
return(new Report(sb.ToString()));
}
private static CityReport GenerateReportForCity(
City city,
OrderReportFormattingSettings orderReportFormattingSettings,
Func <Customer, ImmutableArray <Order> > getOrdersForCustomer)
{
var sb = new MyStringBuilder();
sb.AppendLine("City name: " + city.Name);
sb.AppendLine("Number of customers in the city: " + city.Customers.Length.AsString());
sb.AppendLine();
foreach (var subReport in city.Customers.Select(x => GenerateReportForCustomer(x, orderReportFormattingSettings, getOrdersForCustomer)))
{
sb.AppendLine(subReport.Value);
}
return(new CityReport(sb.ToString()));
}
private static CustomerReport GenerateReportForCustomer(
Customer customer,
OrderReportFormattingSettings orderReportFormattingSettings,
Func <Customer, ImmutableArray <Order> > getOrdersForCustomer)
{
var sb = new MyStringBuilder();
sb.AppendLine("Customer name: " + customer.Name);
var orders = getOrdersForCustomer(customer);
sb.AppendLine("Number of orders for customer: " + orders.Length.AsString());
foreach (var subReport in orders.Select(order => GenerateReportForOrder(order, orderReportFormattingSettings)))
{
sb.AppendLine(subReport.Value);
}
return(new CustomerReport(sb.ToString()));
}
