package launchserver.command.handler;

import launcher.helper.IOHelper;
import launchserver.LaunchServer;

import java.io.BufferedReader;
import java.io.IOException;

public final class StdCommandHandler extends CommandHandler
{
    private final BufferedReader reader;

    public StdCommandHandler(LaunchServer server, boolean readCommands)
    {
        super(server);
        reader = readCommands ? IOHelper.newReader(System.in) : null;
    }

    @Override
    public void bell()
    {
        // Do nothing, unsupported
    }

    @Override
    public void clear()
    {
        throw new UnsupportedOperationException("clear terminal");
    }

    @Override
    public String readLine() throws IOException
    {
        return reader == null ? null : reader.readLine();
    }
}