public static bool ValidateCommand(string inputCommand, out ToyArgs inputArgs)
{
bool isValidCommand = false;
inputArgs = null;
if (!string.IsNullOrEmpty(inputCommand))
{
inputCommand = inputCommand.ToLower().Trim();
var commandData = inputCommand.Split(placeCommandSeparator);
if (commandData.Length == 2)
{
return ValidatePlaceCommand(commandData, out inputArgs);
}
else if(commandData.Length == 1)
{
ToyActions toyAction;
inputArgs = new ToyArgs();
isValidCommand = ValidateOtherCommand(inputCommand, out toyAction);
if (isValidCommand)
{
inputArgs.ActionArg = toyAction;
}
return isValidCommand;
}
}
return isValidCommand;
}
private static bool ValidatePlaceCommand(string[] placeCommandData, out ToyArgs inputArgs)
{
bool isValidCommand = false;
inputArgs = new ToyArgs();
MoveDirection moveDirection;
if (string.Equals(placeCommandData[0], ToyActions.Place.ToString(), StringComparison.CurrentCultureIgnoreCase))
{
int x, y;
var placeArgs = placeCommandData[1].Split(placeCommandArgSeprator);
if (placeArgs.Length == 3 &&
int.TryParse(placeArgs[0], out x) &&
int.TryParse(placeArgs[1], out y) &&
ValidateMoveDirection(placeArgs[2], out moveDirection))
{
inputArgs.PositionArg.X = x;
inputArgs.PositionArg.Y = y;
inputArgs.MoveDirectionArg = moveDirection;
inputArgs.ActionArg = ToyActions.Place;
isValidCommand = true;
}
}
return isValidCommand;
}
private static void ProcessCommand_1(string inputCommand, Toy robot, ToyArgs inputArgs)
{
try
{
if (CommandValidations.ValidateCommand(inputCommand, out inputArgs))
{
ToyCommand toyCommand = null;
CommandInvoker commandInvoker = null;
switch (inputArgs.ActionArg)
{
case ToyActions.Invalid:
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid command");
return;
case ToyActions.Place:
{
toyCommand = new PlaceCommand(robot, inputArgs.PositionArg, inputArgs.MoveDirectionArg);
commandInvoker = new CommandInvoker(toyCommand);
}
break;
case ToyActions.Move:
{
toyCommand = new MoveCommand(robot);
commandInvoker = new CommandInvoker(toyCommand);
}
break;
case ToyActions.Right:
{
toyCommand = new TurnCommand(robot, TurnDirection.Right);
commandInvoker = new CommandInvoker(toyCommand);
}
break;
case ToyActions.Left:
{
toyCommand = new TurnCommand(robot, TurnDirection.Left);
commandInvoker = new CommandInvoker(toyCommand);
}
break;
case ToyActions.Report:
{
toyCommand = new ReportCommand(robot);
commandInvoker = new CommandInvoker(toyCommand);
}
break;
default:
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid command");
return;
}
if (commandInvoker != null && commandInvoker.ExecuteCommand())
{
Console.ForegroundColor = ConsoleColor.Green;
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
}
Console.WriteLine(robot.Message);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid command");
}
}
catch (Exception ex)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Exception Occured: " + ex.Message);
}
Console.ResetColor();
}