package server;

public class GameHandler
{
	private RegisterTracker registerTracker = new RegisterTracker();
	private TurnTracker turnTracker = new TurnTracker();
	private MoveTracker moveTracker = new MoveTracker();
	private BoardTracker boardTracker = new BoardTracker();
	
	public synchronized String processInput(String input)
	{
		if (input.contains("request ID"))
		{
			return registerTracker.register();
		}
		else if (input.contains("update board"))
		{
			return boardTracker.getBoard();
		}
		else if (input.contains("get latest move"))
		{
			input = input.replace("white", "");
			input = input.replace("black", "");
			input = input.replace("viewer", "");
			input = input.replace("get latest move", "");
			int moveNumber = Integer.parseInt(input);
			return moveTracker.getLatestMove(moveNumber);
		}
		else if (input.contains("get player to move"))
		{
			return turnTracker.getPlayerToMove();
		}
		else if (input.contains("make move"))
		{
			input = input.replace("make move", "");
			if (input.contains("white") && 
				turnTracker.getPlayerToMove().equals("white"))
			{
				input = input.replace("white", "");
				moveTracker.addMove(input);
				turnTracker.nextTurn();
			}
			else if (input.contains("black") &&
				 turnTracker.getPlayerToMove().equals("black"))
			{
				input = input.replace("black", "");
				moveTracker.addMove(input);
				turnTracker.nextTurn();
			}
		}
		return "no update";
	}	
}