public void startDialog(Client client)
{
var cash = 0;
showMenu ();
Console.WriteLine ("Balance: 0 rub.\n*** \"help\" - print all commands");
//Initialize method for cashBack
Action<int, int> cashBack = (weight, index) => {
while (cash >= weight && _cash[index] > 0) {
client.Cash += weight;
_cash [index]--;
cash -= weight;
Console.Write(" " + weight);
}
};
//Method for show balance
Action printBalance = () => Console.WriteLine ("Balance: " + cash + " rub.");
while(true)
{
Console.Write ("$ ");
var strs = Console.ReadLine().Split(new char[]{'\t', ' '}, StringSplitOptions.RemoveEmptyEntries);
if (strs.Length == 0)
continue;
switch(strs[0].ToLower())
{
case "balance":
printBalance ();
break;
case "get":
if (strs.Length != 2)
Console.WriteLine ("Please, use this notation:\n\tget 'name', where point from menu called \"name\"");
else {
var item = _menu.Find (x => x.name.ToLower() == strs [1].ToLower ());
if (item.Equals(default(Menu))) {
Console.WriteLine ("Unknown menu item " + strs [1]);
showMenu ();
} else if (cash < item.cost) {
Console.WriteLine ("Too little money. Please, insert more " + (item.cost - cash) + " rub.");
} else {
cash -= item.cost;
Console.WriteLine ("Take " + item.name);
printBalance ();
}
}
break;
case "exit":
var buf = cash;
Console.Write ("Returned");
cashBack (10, 0);
cashBack (5, 1);
cashBack (2, 2);
cashBack (1, 3);
Console.WriteLine (" rub. (" + (buf - cash) + ")");
printBalance ();
if (cash > 0) {
Console.WriteLine ("Machine cannot give U " + cash + " rubles. Please, insert more money!");
break;
}
return;
case "help":
help ();
break;
case "insert":
cash += insert (client, strs);
printBalance ();
break;
case "show":
showMenu ();
printBalance ();
break;
default:
Console.WriteLine ("Unknown command: " + strs [0]);
break;
}
}
}
int insert(Client client, string[] strs)
{
int result = 0, index = 1, buf = -1;
Func<int, int, bool> tran = (weight, i) => {
if (client.Cash >= weight) {
client.Cash -= weight;
_cash[i]++;
result += weight;
return true;
} else {
Console.WriteLine("U have no money!");
return false;
}
};
if (strs.Length < 2)
Console.WriteLine ("Take some coins");
else
while (index < strs.Length) {
if (int.TryParse (strs [index], out buf)) {
var change = result;
var correct =
buf == 10 ? tran (10, 0) :
buf == 5 ? tran (5, 1) :
buf == 2 ? tran (2, 2) :
buf == 1 ? tran (1, 0) :
true;
if (!correct)
return result;
if (change == result)
Console.WriteLine ("Returned " + strs [index]);
} else
Console.WriteLine ("Returned " + strs [index]);
index++;
}
return result;
}
