public bool IsValid(AvailableProductsFilter request)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
return
(request.Age >= 27 &&
request.MonthlyIncome >= 62500);
}
public SortedAvailableProductSet GetAvailableProductsForNtf(AvailableProductsFilter filter)
{
var validRule = _ntfRules.FirstOrDefault(r => r.IsValid(filter));
if (validRule == null)
{
throw new InvalidOperationException($"There is no valid available product rule that matches your filter parameters: age: {filter.Age}, income: {filter.MonthlyIncome}");
}
return(validRule.ProductSet);
}
static void Main(string[] args)
{
Console.WriteLine("Retrieving valid products for 32 year old earning R70 000 monthly...");
var age = 32;
var monthlyIncome = 72000;
var filter = new AvailableProductsFilter(age, monthlyIncome);
var mpaRules = new MpaRules();
var productsSet = mpaRules.GetAvailableProductsForNtf(filter);
foreach (var product in productsSet.AvailableProducts)
{
Console.WriteLine($"Order: {product.OrderNo}, ProductCode: {product.ProductCode}");
}
Console.WriteLine("Retrieval complete.");
}
