package com.jotuntech.sketcher.server.command;

import java.nio.ByteBuffer;

import com.jotuntech.sketcher.common.Brush;
import com.jotuntech.sketcher.common.User;
import com.jotuntech.sketcher.server.Command;
import com.jotuntech.sketcher.server.Connection;
import com.jotuntech.sketcher.server.Server;

public class SetBrushCommand implements Command {
	Brush brush;

	public SetBrushCommand() {

	}

	public SetBrushCommand(Brush brush) {
		this.brush = brush;
	}

	public int perform(Server server, Connection connection) {
		return perform(connection.getUser()) ? Connection.SEND_OTHERS : Connection.SEND_NONE;
	}

	private boolean perform(User user) {
		if(user == null) {
			/** Signed in users only */
			return false;
		}

		if(user.isViewer()) {
			return false;
		}

		user.setBrush(brush);

		return true;
	}

	public void decode(ByteBuffer in) {
		brush = new Brush();
		brush.decode(in);
	}

	public void encode(ByteBuffer out) {
		brush.encode(out);
	}
}