/*
    * This file is part of Waarp Project (named also Waarp or GG).
    *
    *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
    *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
    * individual contributors.
    *
    *  All Waarp Project is free software: you can redistribute it and/or
    * modify it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or (at your
   * option) any later version.
   *
   * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License along with
   * Waarp . If not, see <http://www.gnu.org/licenses/>.
   */
  package org.waarp.ftp.core.command.service;
  
  import org.waarp.common.command.ReplyCode;
  import org.waarp.common.command.exception.CommandAbstractException;
  import org.waarp.common.command.exception.Reply450Exception;
  import org.waarp.common.command.exception.Reply501Exception;
  import org.waarp.common.command.exception.Reply550Exception;
  import org.waarp.ftp.core.command.AbstractCommand;
  import org.waarp.ftp.core.file.FtpFile;
  
  /**
   * DELE command
   */
  public class DELE extends AbstractCommand {
    @Override
    public final void exec() throws CommandAbstractException {
      if (!hasArg()) {
        invalidCurrentCommand();
        throw new Reply501Exception("Need a pathname as argument");
      }
      final String filename = getArg();
      final FtpFile file = getSession().getDir().setFile(filename, false);
      if (file != null) {
        if (file.delete()) {
          getSession().setReplyCode(
              ReplyCode.REPLY_250_REQUESTED_FILE_ACTION_OKAY,
              '"' + file.getFile() + "\" FtpFile is deleted");
          return;
        }
        throw new Reply450Exception("Delete operation not allowed");
      }
      throw new Reply550Exception("Filename not allowed");
    }
  
  }