public ComputeChangeResponse ComputeChange(ComputeChangeRequest request)
{
ComputeChangeResponse response = new ComputeChangeResponse();
Logger.Log(request);
try {
// Verifica se os dados recebidos são válidos.
if (request.IsValid == false)
{
response.OperationReport = request.ValidationReport;
return(response);
}
uint change = CalculateTotalChangeAmount(request.ReceivedAmount, request.ProductAmount);
uint totalChangeAmount = change;
List <ChangeData> changeDataList = new List <ChangeData>();
while (change > 0)
{
AbstractProcessor processor = ProcessorFactory.Create(change);
if (processor == null)
{
Report report = new Report();
report.Message = "Ocorreu um erro: Não há troco disponível";
response.OperationReport.Add(report);
return(response);
}
Dictionary <uint, uint> changeDictionary = processor.Calculate(change);
ChangeData changeData = new ChangeData()
{
Name = processor.GetName(),
ChangeDictionary = changeDictionary
};
changeDataList.Add(changeData);
long totalCurrentAmount = changeDictionary.Sum(p => (p.Value * p.Key));
change -= (uint)totalCurrentAmount;
}
response.ChangeDataList = changeDataList;
response.TotalChangeAmount = totalChangeAmount;
response.Success = true;
}
catch (Exception e) {
Logger.Log(e);
Report report = new Report();
report.Message = "Ocorreu um erro: não foi possível processar sua operação.";
response.OperationReport.Add(report);
}
Logger.Log(response);
return(response);
}
private void UxBtnCalculate_Click(object sender, EventArgs e)
{
this.UxTxtChange.Text = "";
this.UxTxtChangeDetailAmount.Text = "";
uint receivedAmount = uint.Parse(this.UxTxtReceivedAmount.Text);
uint productAmount = uint.Parse(this.UxTxtProductAmount.Text);
TrocofyManager manager = new TrocofyManager();
ComputeChangeRequest request = new ComputeChangeRequest();
request.ReceivedAmount = receivedAmount;
request.ProductAmount = productAmount;
ComputeChangeResponse response = manager.ComputeChange(request);
if (response.Success == false)
{
string validationMessage = "";
foreach (Report error in response.OperationReport)
{
validationMessage += "Campo: " + error.Field + Environment.NewLine +
"Mensagem: " + error.Message + "\n\n\r";
}
MessageBox.Show(validationMessage, "Trocofy - Erro", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
this.UxTxtChange.Text = response.TotalChangeAmount.ToString();
foreach (ChangeData changeData in response.ChangeDataList)
{
this.UxTxtChangeDetailAmount.Text += changeData.Name + Environment.NewLine;
foreach (KeyValuePair <uint, uint> kvPair in changeData.ChangeDictionary)
{
this.UxTxtChangeDetailAmount.Text += kvPair.Key.ToString() + ": " + kvPair.Value.ToString() + Environment.NewLine;
}
this.UxTxtChangeDetailAmount.Text += Environment.NewLine;
}
}
}
