/*
 * ModuleManager.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_COMMON_MODULEMANAGER_H_
#define MAD_COMMON_MODULEMANAGER_H_

#include <Core/Configurable.h>
#include <Core/Initializable.h>

#include <map>
#include <stack>
#include <string>

#include <ltdl.h>

namespace Mad {
namespace Common {

class ModuleManager : public Core::Configurable, public Core::Initializable {
  private:
    static ModuleManager moduleManager;

    std::map<std::string, std::pair<lt_dlhandle, bool> > modules;
    std::stack<std::string> moduleOrder;

    static int preopenCallback(lt_dlhandle handle);

    void unloadModule(const std::string &name);

  protected:
    virtual void doInit();
    virtual void doDeinit();

    virtual bool handleConfigEntry(const Core::ConfigEntry &entry, bool handled);

  public:
    lt_dlhandle loadModule(const std::string &name);

    static ModuleManager* get() {
      if(!moduleManager.isInitialized())
        moduleManager.init();

      return &moduleManager;
    }
};

}
}

#endif /* MAD_COMMON_MODULEMANAGER_H_ */