/// <summary>
/// calculates the ammount of money in BanknoteContainer
/// </summary>
/// <param name="banknotes">BanknoteContainer to take data from</param>
/// <returns>the ammount of money from the banknotes</returns>
public int CalculateMoney(BanknoteContainer banknotes)
{
int ammount = 0;
for (int i = 0; i < banknotes.Count; i++)
{
BanknoteCount banknote = banknotes.GetBanknote(i) as BanknoteCount;
ammount += banknote.Count * banknote.Wealth;
}
return(ammount);
}
/// <summary>
/// creates information string from a successfull withdraw operation:
/// client's bank account number, banknotes the client just received and the ammount of money client has left
/// </summary>
/// <param name="client">Client who performed withdraw operation</param>
/// <param name="banknotes">banknotes the client received from the ATM</param>
/// <returns>formatted withdrawing operation text</returns>
private string FormSuccessfullWithdrawingOperationString(Client client, BanknoteContainer banknotes)
{
string operation = string.Format("{0} {1}",
client.BankAccountNumber, client.CurrentAmmount + CalculateMoney(banknotes), client.AmmountToWithdraw);
for (int i = 0; i < banknotes.Count; i++)
{
BanknoteCount banknote = banknotes.GetBanknote(i) as BanknoteCount;
operation = string.Format("{0}-{1}*{2}", operation, banknote.Wealth, banknote.Count);
}
operation = string.Format("{0} = {1}", operation, client.CurrentAmmount);
return(operation);
}
/// <summary>
/// formats the ammount of money in the ATM
/// </summary>
/// <returns>formatted string of the money in the ATM</returns>
public override string ToString()
{
string atmString = "";
int ammountOfMoney = 0;
for (int i = 0; i < Banknotes.Count; i++)
{
BanknoteCount banknote = Banknotes.GetBanknote(i) as BanknoteCount;
atmString = string.Format("{0}{1}*{2}+", atmString, banknote.Wealth, banknote.Count);
ammountOfMoney += banknote.Wealth * banknote.Count;
}
atmString = atmString.Substring(0, atmString.Length - 1);
atmString = string.Format("{0} = {1}", atmString, ammountOfMoney);
return(atmString);
}
/// <summary>
/// tries to get enough right banknotes for a withdraw operation
/// this method does not remove any banknotes from the ATM, it only creates copies of the banknotes
/// to withdraw
/// </summary>
/// <param name="ammount">ammount of money to withdraw</param>
/// <param name="success">boolean indicating wether there was enough right banknotes to withdraw</param>
/// <returns>BanknoteContainer of banknotes to be withdrawn (will be used only is success = true)</returns>
private BanknoteContainer GetBanknotes(int ammount, out bool success)
{
BanknoteContainer banknotes = new BanknoteContainer(Program.NumberOfBanknoteTypes);
for (int i = 0; i < Banknotes.Count; i++)
{
BanknoteCount banknote = Banknotes.GetBanknote(i) as BanknoteCount;
int numberOfBanknotesRequired = ammount / banknote.Wealth;
int availableBanknotes = (banknote.Count >= numberOfBanknotesRequired)
? numberOfBanknotesRequired : banknote.Count;
banknotes.AddBanknote(new BanknoteCount(banknote.Wealth, availableBanknotes));
ammount -= availableBanknotes * banknote.Wealth;
}
success = ammount == 0;
return(banknotes);
}