/*
 * libbrlapi - A library providing access to braille terminals for applications.
 *
 * Copyright (C) 2006-2025 by
 *   Samuel Thibault <Samuel.Thibault@ens-lyon.org>
 *   Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>
 *
 * libbrlapi comes with ABSOLUTELY NO WARRANTY.
 *
 * This is free software, placed under the terms of the
 * GNU Lesser General Public License, as published by the Free Software
 * Foundation; either version 2.1 of the License, or (at your option) any
 * later version. Please see the file LICENSE-LGPL for details.
 *
 * Web Page: http://brltty.app/
 *
 * This software is maintained by Dave Mielke <dave@mielke.cc>.
 */

package org.a11y.brlapi.clients;
import org.a11y.brlapi.*;

public class SetParameterClient extends Client {
  public SetParameterClient (String... arguments) {
    super(arguments);
    addRequiredParameters("parameter", "value");
    addOptionalParameters("subparam");
  }

  private String parameterName = null;
  private String parameterValue = null;
  private Long subparamValue = null;

  @Override
  protected void processParameters (String[] parameters)
            throws SyntaxException
  {
    int count = parameters.length;
    int index = 0;

    if (index == count) throw new SyntaxException("missing parameter name");
    parameterName = parameters[index++];

    if (index == count) throw new SyntaxException("missing larameter value");
    parameterValue = parameters[index++];

    if (index == count) return;
    subparamValue = Parse.asLong("subparam", parameters[index++]);

    if (index < count) throw new TooManyParametersException(parameters, index);
  }

  @Override
  protected final void runClient (Connection connection)
            throws OperandException
  {
    Parameter parameter = getParameter(connection, parameterName);

    if (subparamValue != null) {
      parameter.set(subparamValue, parameterValue);
    } else {
      parameter.set(parameterValue);
    }
  }
}
