/// <summary>
/// Возвращает ведённую пользователем сумму различными купюрами.
/// </summary>
/// <param name="requestedSum"></param>
/// <param name="currentSum"></param>
/// <param name="money"></param>
/// <returns></returns>
public Money Decompose(decimal requestedSum, ref decimal currentSum, ref Money money)
{
Log.Debug("Decomposition started");
var outputedMoney = new Money();
if (requestedSum <= currentSum)
{
State = AlgorithmStates.Ok;
var tempMoney = new Dictionary <Banknote, int>(money.Banknotes);
try
{
foreach (var item in tempMoney)
{
while (requestedSum >= item.Key.Nominal && money.Banknotes[item.Key] != 0)
{
requestedSum -= item.Key.Nominal;
currentSum -= item.Key.Nominal;
if (!outputedMoney.Banknotes.ContainsKey(item.Key))
{
outputedMoney.Banknotes.Add(item.Key, 0);
outputedMoney.Banknotes[item.Key]++;
}
else
{
outputedMoney.Banknotes[item.Key]++;
}
if (item.Value != 0)
{
money.Banknotes[item.Key]--;
}
}
}
Log.Debug("Decomposition is successfully finished");
}
catch (Exception ex)
{
State = AlgorithmStates.Error;
Log.Error("Unexpected error: " + ex.Message);
}
}
else
{
State = AlgorithmStates.NotEnoughMoney;
Log.Debug("Not enough money in the CashMashine");
}
Log.Debug("Algorithm state is " + State.ToString() + ".");
return(outputedMoney);
}
public void SetHash(byte[] hash)
{
this.state = AlgorithmStates.Ready;
this.hash = hash;
}
public void SetIsIssued()
{
this.state = AlgorithmStates.Issued;
}
public void SetIsComputing()
{
this.state = AlgorithmStates.Computing;
}
public void Reset()
{
this.state = AlgorithmStates.None;
this.hash = null;
}
