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

package org.xmlsh.internal.commands;

import java.io.PrintWriter;
import java.util.List;
import org.xmlsh.core.Options;
import org.xmlsh.core.XCommand;
import org.xmlsh.core.XValue;
import org.xmlsh.sh.shell.SerializeOpts;
import org.xmlsh.util.FileUtils;
import org.xmlsh.util.XFile;

/**
 * XFile implements the equivilent of basename and dirname in one.
 * 
 * Input is a filename either
 * 1) FILE XML element
 * 2) filename
 * 3) dir + filename
 * 4) dir + filename + ext
 * 
 * Methods are 0 or one of
 * 1) construct a filename from pieces
 * 2) replace a component of a filename
 * 
 * 
 * Output is either
 * a component of a filename or full filename
 * as either a string or a new XFile element
 * 
 * 
 */
public class xfile extends XCommand {

  @Override
  public int run(List<XValue> args) throws Exception {
    mLogger.entry(args);
    Options opts = new Options(
        "n=name,b=base,d=dir,a=absolute,c=conanical,e=extension,B=basename,N,s=sys,u=uri,r=rel",
        SerializeOpts.getOptionDefs());
    opts.parse(args);
    args = opts.getRemainingArgs();

    XFile xf = null;
    switch(args.size()){
    case 0:
      xf = new XFile(getCurdir());
      break;
    case 1:
      xf = new XFile(mShell, args.get(0));
      break;
    case 2:
      xf = new XFile(args.get(0).toString(), args.get(1).toString());
      break;
    default:

      usage("Unexpected argument");
      return 1;
    }
    mLogger.debug("file: {}", xf);
    boolean opt_sys = opts.hasOpt("s");

    SerializeOpts serializeOpts = getSerializeOpts(opts);
    PrintWriter out = getStdout().asPrintWriter(serializeOpts);

    if(opts.hasOpt("b"))
      out.println(toSys(xf.getBaseName(), opt_sys));
    else if(opts.hasOpt("B"))
      out.println(toSys(xf.noExtension(), opt_sys));
    else if(opts.hasOpt("n"))
      out.println(toSys(xf.getName(), opt_sys));
    else if(opts.hasOpt("d"))
      out.println(toSys(xf.getDirName(), opt_sys));
    else if(opts.hasOpt("a"))
      out.println(toSys(xf.getFile().getAbsolutePath(), opt_sys));
    else if(opts.hasOpt("c"))
      out.println(toSys(xf.getFile().getCanonicalPath(), opt_sys));
    else if(opts.hasOpt("e"))
      out.println(xf.getExt());
    else if(opts.hasOpt("N"))
      out.println(toSys(xf.getPath(), opt_sys));
    else if(opts.hasOpt("u"))
      out.println(xf.getFile().toURI().toString());
    else if(opts.hasOpt("r"))
      out.println(toSys(xf.getPwdRelativeName(), opt_sys));
    else
      out.println(toSys(xf.getPath(), opt_sys));

    out.flush();

    return 0;

  }

  private String toSys(String name, boolean opt_sys) {
    return FileUtils.convertPath(name, opt_sys);

  }

}

//
//
// 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.
//