/*
* Builds the input message Command and argument(s).
*/
/// <summary>
/// Builds the input message Command and argument(s).
/// </summary>
/// <param name="inputMessage"></param>
/// <param name="inputStrings"></param>
/// <returns>AtmInputMessage object.</returns>
private AtmInputMessage BuildInputMessage(
AtmInputMessage inputMessage,
List <string> inputStrings)
{
inputMessage.Command = GetCommand(inputStrings);
inputMessage = GetArguments(inputMessage, inputStrings);
return(inputMessage);
}
/*
* Gets Withdrawal or Inventory argument(s) depending on Command.
*/
/// <summary>
/// Gets Withdrawal or Inventory argument(s) depending on Command.
/// </summary>
/// <param name="inputMessage"></param>
/// <param name="inputStrings"></param>
/// <returns></returns>
private AtmInputMessage GetArguments(
AtmInputMessage inputMessage,
List <string> inputStrings)
{
// Return if Error command or no args.
if (inputMessage.Command == (int)CommandConstants.COMMAND_ENUM.Error ||
inputStrings.Count <= 1)
{
return(inputMessage);
}
// Get Withdrawal Amount.
if (inputMessage.Command == (int)CommandConstants.COMMAND_ENUM.Withdraw)
{
var isValid = int.TryParse(
inputStrings[InputConstants.AMOUNT],
NumberStyles.Currency,
CultureInfo.CurrentCulture,
out int amount);
if (isValid)
{
inputMessage.WithdrawalAmount = amount;
}
return(inputMessage);
}
// Get Inventory arguments.
foreach (var amount in inputStrings.Skip(1))
{
var isValid = int.TryParse(
amount,
NumberStyles.Currency,
CultureInfo.CurrentCulture,
out int validAmount);
if (isValid)
{
inputMessage.CountRequests.Add(validAmount);
}
}
// Remove Inventory request duplicates.
inputMessage.CountRequests =
inputMessage.CountRequests.Distinct().ToList();
return(inputMessage);
}
/*
* The GetInputMessage method prompts the user for input and
* returns an AtmInputMessage object.
*/
/// <summary>
/// The GetInputMessage method prompts the user for input and
/// returns an AtmInputMessage object.
/// <example>
/// Example:
/// <code>
/// var inputMessage = _inputService.GetInputMessage();
/// </code>
/// returns an AtmInputMessage object.
/// </example>
/// </summary>
/// <returns>Returns an AtmInputMessage object.</returns>
public AtmInputMessage GetInputMessage()
{
var inputMessage = new AtmInputMessage();
// Get Command Input and split into strings delimited by spaces.
var inputStrings = Console.ReadLine().Split(' ').ToList();
// Validate inputStrings length.
if (inputStrings.Count > (AtmConstants.MAX_INPUT_ARGUMENTS + 1) ||
inputStrings.Count < AtmConstants.MIN_INPUT_ARGUMENTS + 1)
{
inputMessage.Command = (int)CommandConstants.COMMAND_ENUM.Error;
return(inputMessage);
}
inputMessage = BuildInputMessage(inputMessage, inputStrings);
return(inputMessage);
}
