/// <summary>
/// loops through all Banknote objects in a BanknoteContainer and writes formatted banknote strings to
/// a StreamWriter
/// </summary>
/// <param name="writer">StreamWriter to write to</param>
/// <param name="banknotes">BanknoteContainer containing banknotes to print</param>
static void PrintBanknotes(StreamWriter writer, BanknoteContainer banknotes)
{
for (int i = 0; i < banknotes.Count; i++)
{
writer.WriteLine("{0}", banknotes.GetBanknote(i).ToString());
}
}
/// <summary>
/// removes banknotes from the ATM
/// called only after a successfull withdraw operation
/// </summary>
/// <param name="banknotes">BanknoteContainer containing BanknoteCount objects with the number of
/// banknotes to remove from the ATM</param>
private void RemoveBanknotes(BanknoteContainer banknotes)
{
for (int i = 0; i < banknotes.Count; i++)
{
Banknote banknote = banknotes.GetBanknote(i);
int banknoteIndex = Banknotes.BanknoteIndex(banknote);
Banknotes.InsertBanknote(banknoteIndex,
(Banknotes.GetBanknote(banknoteIndex) as BanknoteCount) - (banknote as BanknoteCount));
}
}
/// <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);
}
