public void ExecuteCommand(string command)
{
if (command == null)
{
ThrowArgumentNullExceptionOnNullArgument(nameof(command), nameof(ExecuteCommand));
}
//Ignore not relevant spaces and case
command = command.Trim().ToUpperInvariant();
if (command.StartsWith(SimulatorCommands.Place))
{
var parts = command.Split(' ');
if (parts.Length == 2 && parts[0] == SimulatorCommands.Place)
{
var parameters = parts[1].Split(',');
if (parameters.Length != 3)
{
ThrowArgumentExceptionOnInvalidCommand(command, nameof(ExecuteCommand), null);
}
else
{
try {
int x = int.Parse(parameters[0].Trim());
int y = int.Parse(parameters[1].Trim());
var position = new Point.Point(x, y);
var direction = DirectionExtensions.ConvertStringToDirection(parameters[2].Trim());
Robot.Place(Table, position, direction);
} catch (InvalidOperationException ioe) {
// Handle exceptions from Robot.Place
LogNotAllowedCommand(command, ioe);
} catch (Exception e) when(e is FormatException || e is OverflowException || e is ArgumentOutOfRangeException)
{
// Handle exceptions from parameters parsing
ThrowArgumentExceptionOnInvalidCommand(command, nameof(ExecuteCommand), e);
}
}
}
else
{
ThrowArgumentExceptionOnInvalidCommand(command, nameof(ExecuteCommand), null);
}
}
else
{
try {
switch (command)
{
case SimulatorCommands.Move:
Robot.Move();
break;
case SimulatorCommands.Left:
Robot.RotateToTheLeft();
break;
case SimulatorCommands.Right:
Robot.RotateToTheRight();
break;
case SimulatorCommands.Report:
var robotStatus = Robot.GetStatus();
MainTextWriter.WriteLine($"{robotStatus.Position.x},{robotStatus.Position.y},{robotStatus.Direction.ToString().ToUpperInvariant()}");
break;
default:
ThrowArgumentExceptionOnInvalidCommand(command, nameof(ExecuteCommand), null);
break;
}
} catch (InvalidOperationException ioe) {
LogNotAllowedCommand(command, ioe);
}
}
}