static void Main(string[] args)
{
var path = @"C:\Users\Acer_PC\Desktop\products.csv";
ICsvManipulator csvManipulator = new CsvManipulator(path);
IProductService productService = new ProductService(csvManipulator);
IPointOfSaleTerminal pointOfSaleTerminal = new PointOfSaleTerminal(productService);
pointOfSaleTerminal.SetPrice("A", 1.25, 3, 3.00);
pointOfSaleTerminal.SetPrice("B", 4.25, 0, 0.00);
pointOfSaleTerminal.SetPrice("C", 1.00, 6, 5.00);
pointOfSaleTerminal.SetPrice("D", 0.75, 0, 0.00);
//ABCDABA
pointOfSaleTerminal.Set("A");
pointOfSaleTerminal.Set("B");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("D");
pointOfSaleTerminal.Set("A");
pointOfSaleTerminal.Set("B");
pointOfSaleTerminal.Set("A");
var result = pointOfSaleTerminal.CalculateTotal();
pointOfSaleTerminal.ResetBusket();
System.Console.WriteLine(result);
//CCCCCCC
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("C");
result = pointOfSaleTerminal.CalculateTotal();
pointOfSaleTerminal.ResetBusket();
System.Console.WriteLine(result);
//ABCD
pointOfSaleTerminal.Set("A");
pointOfSaleTerminal.Set("B");
pointOfSaleTerminal.Set("C");
pointOfSaleTerminal.Set("D");
result = pointOfSaleTerminal.CalculateTotal();
pointOfSaleTerminal.ResetBusket();
System.Console.WriteLine(result);
System.Console.ReadKey();
}