/*
           * . Accept a flat file as input
          +	1. Each line will contain the amount owed and the amount paid separated by a comma (for example: 2.13,3.00)
          +	2. Expect that there will be multiple lines
           */
        public string ProcessAmounts(TransactionAmounts transactionAmounts)
        {
            string str;
            AbsTranslator translator;
                decimal d = new CashRegister().CalculateChange(transactionAmounts);
                if (d > 0)
                {
                    if ((d % 3) == 0)
                    {
                        translator = new TranslatorFactory().GetTranslator(MoneyConstants.RandomUSD);
                        str = translator.TranslateAmount(d);
                    }
                    else
                    {
                        translator = new TranslatorFactory().GetTranslator(MoneyConstants.USD);
                        str = translator.TranslateAmount(d);
                    }
                }
                else if (d == 0)
                {
                    str = "You have paid the exact amount";
                }
                else
                {
                    translator = new TranslatorFactory().GetTranslator(MoneyConstants.USD);
                    str = "You still owe "+translator.TranslateAmount(Math.Abs(d));
                }

            return str;
        }
 public List<TransactionAmounts> HandleInput(string infile)
 {
     var list = new List<TransactionAmounts>();
     using (var rd = new StreamReader(infile))
     {
         while (!rd.EndOfStream)
         {
             var splits = rd.ReadLine().Split(',');
             var ta = new TransactionAmounts
             {
                 AmountOwed = decimal.Parse(splits[0]),
                 AmountPaid = decimal.Parse(splits[1])
             };
             list.Add(ta);
         }
     }
     return list;
 }
 /*
      2. Output the change the cashier should return to the customer
          +	1. The return string should look like: 1 dollar,2 quarters,1 nickel, etc ...
          +	2. Each new line in the input file should be a new line in the output file
   */
 public decimal CalculateChange(TransactionAmounts transAmounts)
 {
     decimal difference = transAmounts.AmountPaid - transAmounts.AmountOwed;
     return difference;
 }