/// <summary>
///
/// </summary>
/// <param name="changeRequest"></param>
/// <returns></returns>
public ChangeResponse CalculateChange(ChangeRequest changeRequest) {
this.Log.Save(changeRequest, LogTypeEnum.Information);
ChangeResponse changeResponse = new ChangeResponse();
try {
if (changeRequest.IsValid == false) {
changeResponse.OperationReportList = changeRequest.OperationReportList;
return changeResponse;
}
changeResponse.ChangeAmount = changeRequest.PaidAmount - changeRequest.ProductAmount;
changeResponse.ChangeList = this.CalculateChangeList(changeResponse.ChangeAmount.Value);
} catch (Exception exception) {
// TODO: Log
ILog exLog = LogFactory.Create(LoggerEnum.WindowsEventLog);
exLog.Save(exception.Message, LogTypeEnum.Exception);
OperationReport operationReport = new OperationReport();
operationReport.Field = "System Error";
operationReport.Message = exception.Message;
changeResponse.OperationReportList = new List<OperationReport>();
changeResponse.OperationReportList.Add(operationReport);
}
// TODO: Log
this.Log.Save(changeResponse, LogTypeEnum.Information);
return changeResponse;
}
private void CalculateChange() {
this.UxTxtChangeAmount.Text = string.Empty;
ChangeRequest changeRequest = new ChangeRequest();
long productAmount;
long paidAmount;
ErrorCollection = new List<string>();
if (long.TryParse(this.UxTxtProductAmount.Text, out productAmount) == false) {
this.ErrorCollection.Add("Valor do produto precisa ser inteiro.");
}
if (long.TryParse(this.UxTxtPaidAmount.Text, out paidAmount) == false) {
this.ErrorCollection.Add("Valor pago precisa ser inteiro.");
}
if (paidAmount < productAmount) {
this.ErrorCollection.Add("O valor pago precisa ser igual ou maior do que o valor do produto.");
}
if (this.ErrorCollection.Any()) {
foreach (string error in this.ErrorCollection) {
this.UxTxtChangeAmount.Text += error + Environment.NewLine;
}
return;
}
IWhereIsMyChangeManager whereIsMyChange = new WhereIsMyChangeManager();
changeRequest.PaidAmount = paidAmount;
changeRequest.ProductAmount = productAmount;
ChangeResponse changeResponse = whereIsMyChange.CalculateChange(changeRequest);
if (changeResponse.OperationReportList != null && changeResponse.OperationReportList.Any()) {
foreach (OperationReport operationReport in changeResponse.OperationReportList) {
this.UxTxtChangeAmount.Text += string.Format("{0} - {1}{2}", operationReport.Field, operationReport.Message, Environment.NewLine);
}
} else {
foreach (var item in changeResponse.ChangeList) {
this.UxTxtChangeAmount.Text += string.Format("{0}: {1} {2}", item.Key, item.Value, Environment.NewLine);
}
this.UxTxtChangeAmount.Text += string.Format("Troco: {0}{1}", changeResponse.ChangeAmount, Environment.NewLine);
}
}