/*
 * ConfigEntry.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 Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_CORE_CONFIGENTRY_H_
#define MAD_CORE_CONFIGENTRY_H_

#include "export.h"

#include "String.h"
#include <map>
#include <vector>
#include <boost/shared_ptr.hpp>

namespace Mad {
namespace Core {

class ConfigManager;

class MAD_CORE_EXPORT ConfigEntry {
  private:
    friend class ConfigManager;

    typedef std::vector<boost::shared_ptr<ConfigEntry> > EntryVector;
    typedef std::map<String, EntryVector> EntryMap;

    ConfigEntry *parent;

    std::vector<String> values;
    EntryMap children;

  protected:
    ConfigEntry() : parent(0) {}

  public:
    ConfigEntry(ConfigEntry *parent0, const std::vector<String> &values0)
    : parent(parent0), values(values0) {}

    void addChild(const String &key, boost::shared_ptr<ConfigEntry> entry);

    const ConfigEntry* getParent() const {
      return parent;
    }

    ConfigEntry* getParent() {
      return parent;
    }

    const std::vector<String>& getValues() const {
      return values;
    }

    String getValue(const String &defaultValue = String()) const {
      if(values.empty())
        return defaultValue;
      else
        return values.front();
    }

    const ConfigEntry* getEntry(const String &key) const;
    std::vector<const ConfigEntry*> getEntries(const String &key) const;

    std::vector<String> getAll(const String &key) const;
    String get(const String &key, const String &defaultValue = String()) const;
};

}
}

#endif /* MAD_CORE_CONFIGENTRY_H_ */