static void Main(string[] args)
{
BankAccount ba = new BankAccount();
var commands = new List <BankAcoountCommand>
{
new BankAcoountCommand(ba, BankAcoountCommand.Action.Deposit, 100),
new BankAcoountCommand(ba, BankAcoountCommand.Action.Withdraw, 1500),
};
WriteLine(ba);
foreach (var c in commands)
{
c.Call();
}
WriteLine(ba);
foreach (var c in Enumerable.Reverse(commands))
{
c.Undo();
}
WriteLine(ba);
var ba2 = new BankAccount2();
var cmdDeposit = new BankAccountCommand(ba2,
BankAccountCommand.Action.Deposit, 100);
var cmdWithdraw = new BankAccountCommand(ba2,
BankAccountCommand.Action.Withdraw, 1000);
cmdDeposit.Call();
cmdWithdraw.Call();
WriteLine(ba);
cmdWithdraw.Undo();
cmdDeposit.Undo();
WriteLine(ba);
var from = new BankAccount2();
from.Deposit(100);
var to = new BankAccount2();
var mtc = new MoneyTransferCommand(from, to, 1000);
mtc.Call();
// Deposited $100, balance is now 100
// balance: 100
// balance: 0
WriteLine(from);
WriteLine(to);
}
public MoneyTransferCommand(BankAccount2 from,
BankAccount2 to, int amount)
{
AddRange(new[]
{
new BankAccountCommand(from,
BankAccountCommand.Action.Withdraw, amount),
new BankAccountCommand(to,
BankAccountCommand.Action.Deposit, amount)
});
}
public BankAccountCommand(BankAccount2 account, Action action, int amount)
{
this.account = account;
this.action = action;
this.amount = amount;
}