private static void ProcessSale(string filename, IEnumerable <string> productLines, ProductCatalog productCatalog)
{
Sale sale = null;
try
{
sale = new Sale();
}
catch (PromotionCatalogFileException ex)
{
WriteLine("Error reading promotion catalog.");
WriteLine($"{ex.Message}");
WriteLine($"{ex.InnerException?.Message}");
WriteLine("Please have a system administrator correct the error.");
return;
}
WriteLine(new string('-', 80));
WriteLine($"Sale from {filename}");
WriteLine(new string('-', 80));
foreach (
var productLine in
productLines.Where(line => !string.IsNullOrEmpty(line)).Select(line => line.Trim()))
{
var product = productCatalog.FindProduct(productLine);
if (product == null)
{
WriteLine($"Warning! '{productLine}' was not found in the product catalog, skipping.");
continue;
}
sale.MakeLineItem(product, quantity: 1);
}
var total = sale.GetTotal();
foreach (var lineItem in sale.LineItems.OrderBy(i => i.ProductId))
{
Write(lineItem.GetLineItemString());
}
WriteLine(new string('-', 80));
WriteLine("Your total is ".PadRight(30) + $"{total:c}");
WriteLine(new string('-', 80));
}
