/*  -*-c++-*- 
 *  Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library 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 
 * OpenSceneGraph Public License for more details.
 *
 * Authors:
 * Cedric Pinson <mornifle@plopbyte.net>
 * jeremy Moles <jeremy@emperorlinux.com>
*/


#ifndef ANIMTKVIEWER_H
#define ANIMTKVIEWER_H

#include <osg/Node>
#include <osgDB/ReadFile>
#include <osgAnimation/BasicAnimationManager>

class AnimtkViewerModelController 
{
public:
    typedef std::vector<std::string> AnimationMapVector;

    static AnimtkViewerModelController& instance() 
    {
        static AnimtkViewerModelController avmc;
        return avmc;
    }

    static bool setModel(osgAnimation::BasicAnimationManager* model) 
    {
        AnimtkViewerModelController& self = instance();
        self._model = model;
        for (osgAnimation::AnimationList::const_iterator it = self._model->getAnimationList().begin(); it != self._model->getAnimationList().end(); it++)
            self._map[(*it)->getName()] = *it;

        for(osgAnimation::AnimationMap::iterator it = self._map.begin(); it != self._map.end(); it++)
            self._amv.push_back(it->first);

        return true;
    }

    bool list() 
    {
        std::cout << "Animation List:" << std::endl;
        for(osgAnimation::AnimationMap::iterator it = _map.begin(); it != _map.end(); it++)
            std::cout << it->first << std::endl;
        return true;
    }

    bool play() 
    {
        if(_focus < _amv.size()) 
        {
            std::cout << "Play " << _amv[_focus] << std::endl;
            _model->playAnimation(_map[_amv[_focus]].get());
            return true;
        }

        return false;
    }

    bool stop() 
    {
        if(_focus < _amv.size()) 
        {
            std::cout << "Stop " << _amv[_focus] << std::endl;
            _model->stopAnimation(_map[_amv[_focus]].get());
            return true;
        }
        return false;
    }    

    bool next() 
    {
        _focus = (_focus + 1) % _map.size();
        std::cout << "Current now is " << _amv[_focus] << std::endl;
        return true;
    }

    bool previous() 
    {
        _focus = (_map.size() + _focus - 1) % _map.size();
        std::cout << "Current now is " << _amv[_focus] << std::endl;
        return true;
    }

    bool playByName(const std::string& name) 
    {
        for(unsigned int i = 0; i < _amv.size(); i++) if(_amv[i] == name) _focus = i;
        _model->playAnimation(_map[name].get());
        return true;
    }

    const std::string& getCurrentAnimationName() const 
    {
        return _amv[_focus];
    }

    const AnimationMapVector& getAnimationMap() const 
    {
        return _amv;
    }

private:
    osg::ref_ptr<osgAnimation::BasicAnimationManager> _model;
    osgAnimation::AnimationMap                   _map;
    AnimationMapVector                     _amv;
    unsigned int                           _focus;

    AnimtkViewerModelController():
        _model(0),
        _focus(0) {}
};

#endif