package org.xmlsh.internal.commands;

import java.util.List;
import org.xmlsh.core.Options;
import org.xmlsh.core.XCommand;
import org.xmlsh.core.XValue;
import org.xmlsh.core.io.OutputPort;
import org.xmlsh.sh.shell.SerializeOpts;
import org.xmlsh.util.HelpUsage;
import org.xmlsh.util.Util;

/**
 * $Id: $
 * $Date: $
 *
 */

public class help extends XCommand {

  private boolean mNoBrowser = false;
  private boolean mXml = false;

  @Override
  public int run(List<XValue> args) throws Exception {

    Options opts = new Options("h=help,n=nobrowse,xml",
        SerializeOpts.getOptionDefs());
    opts.parse(args);

    mNoBrowser = opts.hasOpt("n");
    mXml = opts.hasOpt("xml");
    HelpUsage helpUsage = new HelpUsage(mShell);

    List<XValue> xvargs = Util.expandSequences(opts.getRemainingArgs());

    String name = null;
    if(xvargs.size() != 1) {
      name = "help";
    }
    else
      name = xvargs.get(0).toString();

    OutputPort stdout = mShell.getEnv().getStdout();

    if(name.equals("commands"))
      helpUsage.doHelpCommands(stdout, !mNoBrowser);
    else
      helpUsage.doHelp(stdout, name, mXml, !mNoBrowser);

    return 0;

  }

}

//
//
// Copyright (C) 2008-2014 David A. Lee.
//
// The contents of this file are subject to the "Simplified BSD License" (the
// "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the
// License at http://www.opensource.org/licenses/bsd-license.php
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is David A. Lee
//
// Portions created by (your name) are Copyright (C) (your legal entity). All
// Rights Reserved.
//
// Contributor(s): none.
//