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/*
 * Logger.h
 *
 * Copyright (C) 2008 Johannes Thorn <dante@g4t3.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_LOGGER_H_
#define MAD_COMMON_LOGGER_H_

#include "LoggerBase.h"
#include "Configurable.h"

#include <algorithm>
#include <cstdarg>
#include <ctime>
#include <memory>
#include <queue>
#include <set>
#include <string>

namespace Mad {
namespace Common {

class Logger : public LoggerBase {
  private:
    class ConfigHelper : private Configurable {
      protected:
        virtual bool handleConfigEntry(const ConfigEntry &entry, bool handled);
        virtual void configFinished();

      public:
        ~ConfigHelper();
    };

    struct Message {
      MessageCategory category;
      MessageLevel level;
      time_t timestamp;
      std::string message;
    };

    static std::auto_ptr<ConfigHelper> configHelper;
    static std::set<Logger*> loggers;
    static std::auto_ptr<std::queue<Message> > messageQueue;

    static void logfv(MessageCategory category, MessageLevel level, const char *format, va_list ap);

    static void log(MessageCategory category, MessageLevel level, time_t timestamp, const std::string &message);

  protected:
    virtual void logMessage(MessageCategory category, MessageLevel level, time_t timestamp, const std::string &message) = 0;

  public:
    static void initConfigHelper() {
      configHelper.reset(new ConfigHelper());
    }

    static void log(MessageCategory category, MessageLevel level, const std::string &message) {
      log(category, level, std::time(0), message);
    }
    static void log(MessageCategory category, const std::string &message) {
      log(category, DEFAULT, message);
    }
    static void log(MessageLevel level, const std::string &message) {
      log(GENERAL, level, message);
    }
    static void log(const std::string &message) {
      log(GENERAL, DEFAULT, message);
    }

    static void logf(MessageCategory category, MessageLevel level, const char *format, ...);
    static void logf(MessageCategory category, const char *format, ...);
    static void logf(MessageLevel level, const char *format, ...);
    static void logf(const char *format, ...);
};

}
}

#endif /* MAD_COMMON_LOGGER_H_ */