/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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 2
 *   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, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Oliver Scheuss
 *   Co-authors:
 *      ...
 *
 */

#ifndef _NetworkFunction_H__
#define _NetworkFunction_H__

#include "NetworkPrereqs.h"

#include <cassert>
#include <cstring>
#include <map>
#include <string>

#include "core/command/Functor.h"
#include "FunctionCallManager.h"
#include "synchronisable/Synchronisable.h"

namespace orxonox
{

#if defined(ORXONOX_COMPILER_GCC) && defined(ORXONOX_ARCH_32)
static constexpr unsigned int MAX_FUNCTION_POINTER_SIZE = 8;
#else
static constexpr unsigned int MAX_FUNCTION_POINTER_SIZE = 16;
#endif //ORXONOX_COMPILER_GCC
static constexpr unsigned int MAX_FUNCTION_POINTER_INTS = (MAX_FUNCTION_POINTER_SIZE-1)/4+1;

struct _NetworkExport NetworkFunctionPointer {
  uint32_t pointer[MAX_FUNCTION_POINTER_INTS];
  bool operator<(const NetworkFunctionPointer& b) const
  {
#if defined(ORXONOX_COMPILER_GCC) && defined(ORXONOX_ARCH_32)
    if (pointer[0] != b.pointer[0])
        return pointer[0] < b.pointer[0];
    else if (pointer[1] != b.pointer[1])
        return pointer[1] < b.pointer[1];
    else
        return false;
#else
    if (pointer[0] != b.pointer[0])
        return pointer[0] < b.pointer[0];
    else if (pointer[1] != b.pointer[1])
        return pointer[1] < b.pointer[1];
    else if (pointer[2] != b.pointer[2])
        return pointer[2] < b.pointer[2];
    else if (pointer[3] != b.pointer[3])
        return pointer[3] < b.pointer[3];
    else
        return false;
#endif
  }
};





class _NetworkExport NetworkFunctionBase {
  public:
    NetworkFunctionBase(const std::string& name, const NetworkFunctionPointer& pointer);
    virtual ~NetworkFunctionBase() {}

    void setNetworkID(uint32_t id);
    inline uint32_t     getNetworkID() const                { return this->networkID_; }
    inline const std::string& getName() const               { return this->name_; }
    inline const NetworkFunctionPointer& getPointer() const { return this->pointer_; }

    virtual bool call(uint32_t objectID)=0;
    virtual bool call(uint32_t objectID, const MultiType& mt1)=0;
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2)=0;
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3)=0;
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4)=0;
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4, const MultiType& mt5)=0;

  private:
    uint32_t networkID_;
    std::string name_;
    NetworkFunctionPointer pointer_;

};


class _NetworkExport NetworkFunctionStatic: public NetworkFunctionBase {
  public:
    NetworkFunctionStatic(const FunctorStaticPtr& functor, const std::string& name, const NetworkFunctionPointer& p)
        : NetworkFunctionBase(name, p)
        , functor_(functor)
    { }

    // ignore the objectID because its a static function
    virtual bool call(uint32_t objectID) override{ (*this->functor_)(); return true; }
    virtual bool call(uint32_t objectID, const MultiType& mt1) override{ (*this->functor_)(mt1); return true; }
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2) override{ (*this->functor_)(mt1, mt2); return true; }
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3) override{ (*this->functor_)(mt1, mt2, mt3); return true; }
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4) override{ (*this->functor_)(mt1, mt2, mt3, mt4); return true; }
    virtual bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4, const MultiType& mt5) override{ (*this->functor_)(mt1, mt2, mt3, mt4, mt5); return true; }

  private:
    FunctorStaticPtr functor_;

};


class _NetworkExport NetworkMemberFunctionBase: public NetworkFunctionBase {
  public:
    NetworkMemberFunctionBase(const std::string& name, const NetworkFunctionPointer& p)
        : NetworkFunctionBase(name, p)
    { }
};


template <class T> class NetworkMemberFunction: public NetworkMemberFunctionBase {
  public:
    NetworkMemberFunction(const FunctorMemberPtr<T>& functor, const std::string& name, const NetworkFunctionPointer& p)
        : NetworkMemberFunctionBase(name, p)
        , functor_(functor)
    { }

    virtual inline bool call(uint32_t objectID) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)));
        return true;
      }
      else
        return false;
    }
    virtual inline bool call(uint32_t objectID, const MultiType& mt1) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)), mt1);
        return true;
      }
      else
        return false;
    }
    virtual inline bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)), mt1, mt2);
        return true;
      }
      else
        return false;
    }
    virtual inline bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)), mt1, mt2, mt3);
        return true;
      }
      else
        return false;
    }
    virtual inline bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)), mt1, mt2, mt3, mt4);
        return true;
      }
      else
        return false;
    }
    virtual inline bool call(uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4, const MultiType& mt5) override
    {
      if ( Synchronisable::getSynchronisable(objectID)!=nullptr )
      {
        (*this->functor_)(orxonox_cast<T*>(Synchronisable::getSynchronisable(objectID)), mt1, mt2, mt3, mt4, mt5);
        return true;
      }
      else
        return false;
    }

  private:
    FunctorMemberPtr<T> functor_;
};

}

#endif /* _NetworkFunction_H__ */