static void Main(string[] args)
{
string filename = "BillInfo.txt";
if (args.Length == 1)
filename = args[0];
FileStream fs = new FileStream(filename, FileMode.Open);
StreamReader sr = new StreamReader(fs);
// read customer
string line = sr.ReadLine();
string[] result = line.Split(':');
string name = result[1].Trim();
// read bonus
line = sr.ReadLine();
result = line.Split(':');
int bonus = Convert.ToInt32(result[1].Trim());
Customer customer = new Customer(name, bonus);
Bill b = new Bill(customer);
// read goods count
line = sr.ReadLine();
result = line.Split(':');
int goodsQty = Convert.ToInt32(result[1].Trim());
Good[] g = new Good[goodsQty];
for (int i = 0; i < g.Length; i++)
{
line = sr.ReadLine();
result = line.Split(':');
result = result[1].Trim().Split();
string type = result[1].Trim();
switch (type)
{
case "REG": g[i] = new RegularGood(result[0]);
break;
case "SAL": g[i] = new SaleGood(result[0]);
break;
case "SPO": g[i] = new SpecialOfferGood(result[0]);
break;
}
}
// read items count
line = sr.ReadLine();
result = line.Split(':');
int itemsQty = Convert.ToInt32(result[1].Trim());
for (int i = 0; i < itemsQty; i++)
{
line = sr.ReadLine();
result = line.Split(':');
result = result[1].Trim().Split();
int gid = Convert.ToInt32(result[0].Trim());
double price = Convert.ToDouble(result[1].Trim());
int qty = Convert.ToInt32(result[2].Trim());
b.AddGoods(new Item(g[gid - 1], qty, price));
}
string bill = b.Statement();
Console.WriteLine(bill);
Console.ReadKey();
}
public Item(Good good, int quantity, double price)
{
Good = good;
Quantity = quantity;
Price = price;
}