/*==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 "plSDL.h"
#include "pnMessage/plSDLNotificationMsg.h"
#include <algorithm>

// static 
UInt32 plStateChangeNotifier::fCurrentPlayerID = 0;

plStateChangeNotifier::plStateChangeNotifier() :
fDelta(0)
{
    
}

plStateChangeNotifier::plStateChangeNotifier(float i, plKey k)
{
    SetValue(i);
    IAddKey(k);
}

void plStateChangeNotifier::IAddKey(plKey k)
{
    KeyList::iterator it = std::find(fKeys.begin(), fKeys.end(), k);
    if (it==fKeys.end())
        fKeys.push_back(k);
}

int plStateChangeNotifier::IRemoveKey(plKey k)
{
    KeyList::iterator it = std::find(fKeys.begin(), fKeys.end(), k);
    if (it!=fKeys.end())
        fKeys.erase(it);
    return fKeys.size();
}

//
// returns number of keys left after removal
//
int plStateChangeNotifier::RemoveNotificationKey(plKey k)
{
    return IRemoveKey(k);
}

//
// returns number of keys left after removal
//
int plStateChangeNotifier::RemoveNotificationKeys(KeyList keys)
{
    KeyList::iterator it=keys.begin();
    for( ; it != keys.end(); it++)
        IRemoveKey(*it);

    return fKeys.size();
}

void plStateChangeNotifier::AddNotificationKeys(KeyList keys)
{
    KeyList::iterator it=keys.begin();
    for( ; it != keys.end(); it++)
        IAddKey(*it);
}

bool plStateChangeNotifier::GetValue(float* i) const
{
    *i=fDelta;
    return true;
}

bool plStateChangeNotifier::SetValue(float i)
{
    fDelta=i;
    return true;
}

bool plStateChangeNotifier::operator==(const plStateChangeNotifier &other) const
{
    return (other.fDelta==fDelta && other.fKeys==fKeys);
}

//
// send notification msg to all registered recipients
//
void plStateChangeNotifier::SendNotificationMsg(const plSimpleStateVariable* srcVar, const plSimpleStateVariable* dstVar, 
                                                const char* sdlName)
{
    plSDLNotificationMsg* m = TRACKED_NEW plSDLNotificationMsg;

    // add receivers
    KeyList::iterator kit=fKeys.begin();
    for(; kit != fKeys.end(); kit++)
        m->AddReceiver(*kit);

    m->fDelta=fDelta;
    m->fVar=dstVar;
    m->fSDLName = sdlName;  
    m->fPlayerID = GetCurrentPlayerID();
    m->fHintString = srcVar->GetNotificationInfo().GetHintString();

    m->Send();
}