/*
 * Copyright (C) 2007-2014 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */

#ifndef BU_UUID_H
#define BU_UUID_H

#include "bu/util.h"
#include "bu/string.h"

namespace Bu
{
    class Uuid
    {
    friend Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Uuid &u );
    friend Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Uuid &u );
    public:
        Uuid();
        Uuid( const Uuid &src );
        Uuid( const Bu::String &sSrc );
        virtual ~Uuid();

        Bu::String toRawString() const;
        Bu::String toString() const;
        Bu::String toUrn() const;

        enum Type
        {
            System,
            Version1,
            Version2,
            Version3,
            Version4,
            Version5,
        };

        int getVersion();

        static Uuid generate( Type eType = System );
        DEPRECATED static Uuid gen() { return generate(); }

        void clear();
        void set( const Bu::String &sSrc );

        bool operator==( const Uuid &rhs ) const;
        bool operator!=( const Uuid &rhs ) const;
        Uuid &operator=( const Bu::String &rhs ) { set( rhs ); return *this; }
        Uuid &operator=( const Uuid &rhs );

    private:
        unsigned char data[16];
    };

    template<typename T>
    uint32_t __calcHashCode( const T &k );

    template<typename T>
    bool __cmpHashKeys( const T &a, const T &b );

    template<> uint32_t __calcHashCode<Uuid>( const Uuid &k );
    template<> bool __cmpHashKeys<Uuid>(
        const Uuid &a, const Uuid &b );

    class Formatter;
    Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Uuid &u );
    Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Uuid &u );
    Bu::Formatter &operator<<( Bu::Formatter &f, const Uuid &u );
};

#endif