/// <summary>
/// Util function for Right and Left commands
/// </summary>
/// <param name="robotId"></param>
/// <param name="direction"></param>
/// <returns></returns>
private IHttpActionResult TurnRobot(string robotId, RotationalDirection direction)
{
try
{
//do validation first here.
if (string.IsNullOrEmpty(robotId))
{
var feedback = new CommandFeedback
{
IsSuccess = false,
ErrorCode = CommandErrorCode.RobotNotPositioned
};
return(Ok(JsonConvert.SerializeObject(feedback)));
}
var robot = RobotService.GetRobot(robotId);
//if we cannot find robot, we need to return error message.
if (robot == null)
{
var feedback = new CommandFeedback
{
IsSuccess = false,
ErrorCode = CommandErrorCode.RobotNotPositioned
};
return(Ok(JsonConvert.SerializeObject(feedback)));
}
CommandFeedback result;
if (direction == RotationalDirection.Left)
{
result = _rotateLeft.Impact(robot);
}
else if (direction == RotationalDirection.Right)
{
result = _rotateRight.Impact(robot);
}
else
{
throw new Exception("Invalid direction/Face provided for robot move.");
}
if (result.IsSuccess)
{
RobotService.PersistRobot(robot);
}
return(Ok(JsonConvert.SerializeObject(result)));
}
catch (Exception ex)
{
return(InternalServerError(ex));
}
}
/// <summary>
/// Rotates robot to the right
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TurnRight(object sender, EventArgs e)
{
if (!_robot.IsPositioned)
{
MessageBox.Show(Properties.Resources.Error_Robot_NotPlaced);
return;
}
var result = _rotateRight.Impact(_robot);//run command on robot
if (result.IsSuccess)
{
RefreshRobotOnScreen(); //refresh screen to see impact, validation not needed for rotational commands
return;
}
//if we get here then there is a problem
MessageBox.Show(Properties.Resources.Error_CouldNot_Rotate_Robot);
}