/*
 * Exception.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_EXCEPTION_H_
#define MAD_CORE_EXCEPTION_H_

#include "export.h"

#include "String.h"

#include <exception>
#include <string>

namespace Mad {
namespace Core {

class MAD_CORE_EXPORT Exception : public std::exception {
  public:
    enum ErrorCode {
      SUCCESS = 0x0000, UNEXPECTED_PACKET = 0x0001, INVALID_ACTION = 0x0002, NOT_AVAILABLE = 0x0003, NOT_FINISHED = 0x0004, NOT_IMPLEMENTED = 0x0005,
          NOT_FOUND = 0x0006, INVALID_INPUT = 0x0007, PERMISSION = 0x0008,
      INTERNAL_ERRNO = 0x0010,
      INVALID_ADDRESS = 0x0020,
      ALREADY_IDENTIFIED = 0x0030, UNKNOWN_DAEMON = 0x0031,
      DUPLICATE_ENTRY = 0x0040,
      AUTHENTICATION = 0x0050,
    };

  private:
    Core::String where;

    ErrorCode errorCode;
    long subCode;
    long subSubCode;

    Core::String errorStr;
    std::string whatStr;

    void updateWhatStr();

  public:
    Exception(const Core::String &where0, ErrorCode errorCode0 = SUCCESS, long subCode0 = 0, long subSubCode0 = 0)
    : where(where0), errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {
      updateWhatStr();
    }
    Exception(ErrorCode errorCode0 = SUCCESS, long subCode0 = 0, long subSubCode0 = 0) : errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {
      updateWhatStr();
    }
    virtual ~Exception() throw () {}

    const Core::String& getWhere() const {return where;}
    ErrorCode getErrorCode() const {return errorCode;}
    long getSubCode() const {return subCode;}
    long getSubSubCode() const {return subSubCode;}

    virtual const char* what() const throw () {
      return whatStr.c_str();
    }

    const Core::String& toString() const throw () {
      return errorStr;
    }

    operator bool() const throw () {
      return (errorCode != SUCCESS);
    }
};

template<typename ElemType, typename Traits>
std::basic_ostream<ElemType, Traits>& operator<<(std::basic_ostream<ElemType, Traits> &stream, const Exception &exception) {
  stream << exception.toString();
  return stream;
}

}
}

#endif /* MAD_CORE_EXCEPTION_H_ */