public int getNominalAmount(BILL_TYPE billType)
{
return(mMoneyStore[billType].getAmount());
}
public int getMaxAmount(BILL_TYPE billType)
{
return(mMoneyStore[billType].getMaxAmount());
}
public bool tryToGiveAwayMoney(int requesteSum, BILL_TYPE preferedType, ref string outMessage, out Dictionary <BILL_TYPE, int> outputSum)
{
outputSum = new Dictionary <BILL_TYPE, int> {
{ BILL_TYPE.TYPE_10, 0 },
{ BILL_TYPE.TYPE_50, 0 },
{ BILL_TYPE.TYPE_100, 0 },
{ BILL_TYPE.TYPE_500, 0 }
};
if (requesteSum == 0)
{
outMessage = "Requested sum is zero";
return(false);
}
if (requesteSum > getMoneySum())
{
outMessage = "Requested sum is not available";
return(false);
}
int sumNeeded = requesteSum;
int sumByPrefered = mMoneyStore[preferedType].getMoneySum();
int sumByOthers = 0;
if (sumByPrefered >= sumNeeded)
{
sumByOthers = sumNeeded - (int)preferedType * (sumNeeded / (int)preferedType);
if (sumByOthers == 0)
{
outputSum[preferedType] = sumNeeded / (int)preferedType;
sumNeeded = 0;
}
}
else
{
sumByOthers = sumNeeded - sumByPrefered;
}
int sumByPrevBills = 0;
int maxBillAmount = 0;
BILL_TYPE maxBillType = BILL_TYPE.TYPE_10;
SortedSet <BILL_TYPE> mBillsList = new SortedSet <BILL_TYPE>();
mBillsList.Add(preferedType);
if (sumByOthers != 0)
{
foreach (var curPair in mMoneyStore)
{
if (curPair.Key == preferedType)
{
continue;
}
if (sumByOthers > (mMoneyStore[curPair.Key].getMoneySum() + sumByPrevBills))
{
sumByPrevBills += mMoneyStore[curPair.Key].getMoneySum();
mBillsList.Add(curPair.Key);
}
else
{
int curBillAmount = sumByOthers / (int)curPair.Key;
int curResid = sumByOthers % (int)curPair.Key;
if (curResid != 0 && curResid > sumByPrevBills)
{
curBillAmount += 1;
}
maxBillAmount = curBillAmount;
maxBillType = curPair.Key;
break;
}
}
if ((int)maxBillType * maxBillAmount <= requesteSum)
{
sumNeeded = requesteSum;
sumNeeded -= maxBillAmount * (int)maxBillType;
outputSum[maxBillType] = maxBillAmount;
foreach (var curType in mBillsList.Reverse())
{
int curBillsNeeded = sumNeeded / (int)curType;
int curBillsAvailable = mMoneyStore[curType].getAmount();
int billSpended = 0;
if (curBillsNeeded >= curBillsAvailable)
{
billSpended = curBillsAvailable;
}
else
{
billSpended = curBillsNeeded;
}
sumNeeded -= billSpended * (int)curType;
outputSum[curType] = billSpended;
}
}
}
if (sumNeeded == 0)
{
foreach (var curPair in outputSum)
{
mMoneyStore[curPair.Key].tryDecrAmount(curPair.Value);
}
}
else
{
outputSum.Clear();
outMessage = "Could not return such sum";
return(false);
}
outMessage = "Take your money";
if (MoneyChangedEvent != null)
{
MoneyChangedEvent();
}
return(true);
}
