public int GiveChange(CopyContext copyContext)
{
int i = Balance;
Balance = 0;
copyContext.state = new PayState();
return(i);
}
public override void Pay(CopyContext copyContext, int amount)
{
if (amount <= 0)
{
return;
}
Console.WriteLine($"Баланс: {amount}");
copyContext.state = new ChooseDeviceState(amount);
}
public override void ChooseDevice(CopyContext copyContext, string device)
{
if (device.Equals(DEVICE_USB))
{
copyContext.state = new ChooseDocFromUSBState(Balance);
return;
}
if (device.Equals(DEVICE_WIFI))
{
copyContext.state = new ChooseDocFromWiFiState(Balance);
return;
}
throw new Exception("Invalid device");
}
public override void PrintDoc(CopyContext copyContext)
{
Console.WriteLine($"Печатаем с {DeviceType}, документ с именем {DocumentName}");
Balance -= copyContext.price;
if (Balance < copyContext.price)
{
Console.WriteLine($"Осталось денег: {Balance}, внесите ещё");
copyContext.state = new PayState(Balance);
}
else
{
Console.WriteLine($"Осталось денег: {Balance}");
ReturnOneStateBack(copyContext);
}
}
static void Main(string[] args)
{
CopyContext copyContext = new CopyContext();
try
{
copyContext.Pay(10);
copyContext.ChooseDevice(ChooseDeviceState.DEVICE_WIFI);
copyContext.ChooseDoc("Hello.doc");
copyContext.PrintDoc();
} catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.ReadLine();
}
public override void ChooseDevice(CopyContext copyContext, string device)
{
throw new Exception("Pay first!");
}
protected override void ReturnOneStateBack(CopyContext copyContext)
{
copyContext.state = new ChooseDocFromWiFiState(Balance);
}
public override void ChooseDoc(CopyContext copyContext, string name)
{
throw new Exception("Choose device first!");
}
public override void PrintDoc(CopyContext copyContext)
{
throw new Exception("Pay first!");
}
public abstract void ChooseDoc(CopyContext copyContext, string name);
public abstract void PrintDoc(CopyContext copyContext);
public abstract void Pay(CopyContext copyContext, int amount);
public abstract void ChooseDevice(CopyContext copyContext, string device);
public override void PrintDoc(CopyContext copyContext)
{
throw new Exception("Choose device first!");
}
protected abstract void ReturnOneStateBack(CopyContext copyContext);
public override void Pay(CopyContext copyContext, int amount)
{
throw new Exception("You already paid!");
}
public override void ChooseDoc(CopyContext copyContext, string name)
{
copyContext.state = new PrintDocFromWiFiState(Balance, name);
}
public override void ChooseDoc(CopyContext copyContext, string name)
{
throw new Exception("You already chose!");
}