public object Command(Operation op, SalesManager smg, Dictionary <string, object> param)
{
switch (op)
{
case Operation.Add:
smg.Add(new SalesItem((string)param["isbn"], (double)param["price"]));
return(null);
case Operation.Sum:
return(smg.SumPrice((string)param["isbn"]));
case Operation.Discount:
smg.SetCategory((string)param["isbn"], (DiscountCategory)Enum.Parse(typeof(DiscountCategory), (string)param["discount"]));
return(null);
case Operation.List:
smg.Print();
return(null);
default:
throw new InvalidOperationException("Invalid Operation");
}
}
static void Main(string[] args)
{
//var items = new List<SalesItem>(){
// new SalesItem("xxxx-1", 10),
// new SalesItem("xxxx-1", 10),
// new SalesItem("xxxx-3", 12),
// new SalesItem("xxxx-3", 13),
// new SalesItem("xxxx-4", 15),
//};
var command = new SalesManagerOperator();
var smg = new SalesManager();
Console.WriteLine("Command e.g add isbn:xxxx-34 price:12.5");
Console.WriteLine("Command e.g sum isbn:xxxx-34");
Console.WriteLine("Command e.g discount isbn:xxxx-34 discount:A");
Console.WriteLine("Command e.g list");
while (true)
{
try
{
Console.WriteLine("Command:");
var line = Console.ReadLine();
var cmd = line.Split(new char[] { ' ' });
if (cmd.Length <= 0)
{
Console.WriteLine("Invalid operation");
}
var param = new Dictionary <string, object>();
for (int i = 1; i < cmd.Length; i++)
{
var kv = cmd[i].Split(new char[] { ':' });
param[kv[0]] = kv[1];
}
if (cmd[0] == "list")
{
command.Command(SalesManagerOperator.Operation.List, smg, param);
}
else if (cmd[0] == "add")
{
if (!IsValidParameter(new List <string>()
{
"isbn", "price"
}, line))
{
throw new InvalidOperationException();
}
param["price"] = Double.Parse((string)param["price"]);
command.Command(SalesManagerOperator.Operation.Add, smg, param);
Console.WriteLine("Add done");
}
else if (cmd[0] == "sum")
{
if (!IsValidParameter(new List <string>()
{
"isbn"
}, line))
{
throw new InvalidOperationException();
}
var result = command.Command(SalesManagerOperator.Operation.Sum, smg, param);
Console.WriteLine("sum result {0}", result);
}
else if (cmd[0] == "discount")
{
if (!IsValidParameter(new List <string>()
{
"isbn", "discount"
}, line))
{
throw new InvalidOperationException();
}
command.Command(SalesManagerOperator.Operation.Discount, smg, param);
Console.WriteLine("Discount done");
}
else
{
throw new InvalidOperationException();
}
}
catch (Exception e) {
Console.WriteLine(e.ToString());
}
}
//items.ForEach(item => salesManager.Add(item));
//salesManager.SetCategory("xxxx-1", DiscountCategory.C);
//Console.WriteLine(salesManager.SumPrice("xxxx-1"));
}