/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#include "plUUID.h"

#ifdef HS_BUILD_FOR_UNIX

#include <uuid/uuid.h>

struct plUUIDHelper
{
    static inline void CopyToPlasma( plUUID * dst, const uuid_t & src )
    {
        hsAssert( sizeof(uuid_t)==sizeof(dst->fData), "sizeof(uuid_t)!=sizeof(plUUID)" );
        memcpy( (void*)dst->fData, (const void *)src, sizeof( plUUID ) );
    }

    static inline void CopyToNative( uuid_t & dst, const plUUID * src )
    {
        hsAssert( sizeof(uuid_t)==sizeof(src->fData), "sizeof(uuid_t)!=sizeof(plUUID)" );
        memcpy( (void*)dst, (const void *)src->fData, sizeof( plUUID ) );
    }
};


void plUUID::Clear()
{
    uuid_t g;
    plUUIDHelper::CopyToNative( g, this );
    uuid_clear( g );
    plUUIDHelper::CopyToPlasma( this, g );
}

bool plUUID::IsNull() const
{
    uuid_t g;
    plUUIDHelper::CopyToNative( g, this );
    return ( uuid_is_null( g )!=0 );
}

void plUUID::CopyFrom( const plUUID * v )
{
    memcpy( (void*)fData, (const void*)v->fData, sizeof(fData) );
}

int plUUID::CompareTo( const plUUID * v ) const
{
    uuid_t ga, gb;
    plUUIDHelper::CopyToNative( ga, this );
    plUUIDHelper::CopyToNative( gb, v );
    int ans = uuid_compare( ga, gb );
    return ans;
}

bool plUUID::IsEqualTo( const plUUID * v ) const
{
    return ( CompareTo( v )==0 );
}

bool plUUID::FromString( const char * str )
{
    Clear();
    if ( !str )
        return false;
    uuid_t g;
    uuid_parse( str, g );
    plUUIDHelper::CopyToPlasma( this, g );
    return true;
}

bool plUUID::ToStdString( std::string & out ) const
{
    uuid_t g;
    plUUIDHelper::CopyToNative( g, this );
    char buf[40];
    uuid_unparse( g, buf );
    out = buf;
    return true;
}

// static
plUUID plUUID::Generate()
{
    uuid_t g;
    uuid_generate( g );
    plUUID result;
    plUUIDHelper::CopyToPlasma( &result, g );
    return result;
}

#else

// dummy function to prevent a linker warning complaining about no public symbols if the
// contents of the file get compiled out via pre-processor
void _preventLNK4221WarningStub()
{
}

#endif