private List <ChangeData> CalculateEntities(long changeAmount)
{
long changeRest = changeAmount;
List <ChangeData> changeDataCollection = new List <ChangeData>();
while (changeRest > 0)
{
ChangeData currentData = new ChangeData();
AbstractProcessor proc = ProcessorFactory.CreateProcessor(changeRest);
Dictionary <int, long> monetaryObjs = proc.CalculateChange(changeRest);
currentData.Name = proc.GetName();
currentData.ChangeDictionary = monetaryObjs.Where(p => p.Value > 0).ToDictionary(p => p.Key, p => p.Value);
long currentProduct = monetaryObjs.Sum(p => p.Key * p.Value);
changeRest = changeRest - currentProduct;
changeDataCollection.Add(currentData);
// Dispara o evento informando que um processador foi executado.
if (this.OnProcessorExecuted != null)
{
string nameProcessor = proc.GetName();
this.OnProcessorExecuted(this, nameProcessor, currentProduct);
}
}
return(changeDataCollection);
}
public ReturnAmountResponse ReturnAmount(ReturnAmountRequest returnCoinsRequest)
{
LogService.Save("Request", returnCoinsRequest);
ReturnAmountResponse returnAmountResponse = new ReturnAmountResponse();
try
{
// Verifica se os dados recebidos são válidos.
if (returnCoinsRequest.IsValid == false)
{
returnAmountResponse.OperationReport = returnCoinsRequest.ValidationReport;
return(returnAmountResponse);
}
long changeAmount = returnCoinsRequest.PaidAmount - returnCoinsRequest.ProductAmount;
long currentChangeAmount = changeAmount;
List <ChangeData> chData = new List <ChangeData>();
while (currentChangeAmount > 0)
{
AbstractProcessor processor = ProcessorFactory.Create(currentChangeAmount);
if (processor == null)
{
returnAmountResponse.OperationReport.Add(new Report(null, "Não foi possivel processar seu troco."));
return(returnAmountResponse);
}
Dictionary <long, int> result = processor.CalculateChange(currentChangeAmount);
long resultTotalAmount = result.Sum(t => t.Key * t.Value);
chData.Add(new ChangeData()
{
Type = processor.GetName(),
TotalAmount = resultTotalAmount,
Changes = result
});
currentChangeAmount -= resultTotalAmount;
}
returnAmountResponse.TotalAmount = changeAmount;
returnAmountResponse.Result = chData;
returnAmountResponse.Success = true;
}
catch (Exception ex)
{
returnAmountResponse.OperationReport.Add(new Report(null, "Ocorreu um erro interno."));
LogService.Save("Exception", ex.Message);
}
LogService.Save("Response", returnAmountResponse);
return(returnAmountResponse);
}
