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/*
 * CommandParser.h
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program 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.
 *
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_CLIENT_COMMANDPARSER_H_
#define MAD_CLIENT_COMMANDPARSER_H_

#include <Common/HostInfo.h>
#include <Common/XmlPacket.h>

#include <boost/smart_ptr.hpp>

#include <map>
#include <string>
#include <vector>

namespace Mad {

namespace Common {
class Connection;
}

namespace Client {

class CommandParser {
  private:
    struct Command {
      const char* commands[3];
      const char* cmdline;
      const char* desc;
      const char* longdesc;

      void (CommandParser::*funcPtr) (const std::vector<std::string> &args);
    };

    static const Command commands[];

    static CommandParser commandParser;

    Common::Connection *connection;

    bool disconnect;

    const Command* findCommand(const std::string& command);
    void printUsage(const std::string& command);

    std::map<std::string, Common::HostInfo> parseHostList(const std::vector<std::string> &args, bool mustBeActive = false);

    void printFSInfo(boost::shared_ptr<const Common::XmlPacket> &packet);
    void printHostStatus(boost::shared_ptr<const Common::XmlPacket> &packet);

    void fsinfoCommand(const std::vector<std::string> &args);
    void helpCommand(const std::vector<std::string> &args);
    void listHostsCommand(const std::vector<std::string> &args);
    void rebootCommand(const std::vector<std::string> &args);
    void shutdownCommand(const std::vector<std::string> &args);
    void statusCommand(const std::vector<std::string> &args);
    void userInfoCommand(const std::vector<std::string> &args);
    void listUsersCommand(const std::vector<std::string> &args);
    void listUserGroupsCommand(const std::vector<std::string> &args);
    void listGroupsCommand(const std::vector<std::string> &args);
    void listGroupUsersCommand(const std::vector<std::string> &args);
    void exitCommand(const std::vector<std::string>&);

    CommandParser() : connection(0), disconnect(false) {}

  public:
    static CommandParser *get() {
      return &commandParser;
    }

    Common::Connection *getConnection() const {
      return connection;
    }

    void setConnection(Common::Connection *con) {
      connection = con;
    }

    bool parse(const std::string &cmd);

    void requestDisconnect() {
      exitCommand(std::vector<std::string>());
    }

    bool willDisconnect() const {
      return disconnect;
    }
};

}
}

#endif /* MAD_CLIENT_COMMANDPARSER_H_ */