/*
 *   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 <scheusso [at] orxonox.net>, (C) 2010
 *   Co-authors:
 *      ...
 *
 */

#include "FunctionCall.h"

#include <cassert>
#include "util/MultiType.h"
#include "NetworkFunction.h"
#include "NetworkFunctionManager.h"

namespace orxonox {

FunctionCall::FunctionCall()
 : nrOfArguments_(-1), objectID_(OBJECTID_UNKNOWN), size_(0)
{
}

FunctionCall::~FunctionCall()
{
}


bool FunctionCall::execute(){
  NetworkFunctionBase* fct = NetworkFunctionManager::getInstance().getFunctionByNetworkId( this->functionID_ );
  assert( fct != nullptr );
  assert( this->nrOfArguments_==this->arguments_.size() );
  switch(this->nrOfArguments_)
  {
    case 0:
      return fct->call(this->objectID_);
    case 1:
      return fct->call(this->objectID_, this->arguments_[0]);
    case 2:
      return fct->call(this->objectID_, this->arguments_[0], this->arguments_[1]);
    case 3:
      return fct->call(this->objectID_, this->arguments_[0], this->arguments_[1], this->arguments_[2]);
    case 4:
      return fct->call(this->objectID_, this->arguments_[0], this->arguments_[1], this->arguments_[2], this->arguments_[3]);
    case 5:
      return fct->call(this->objectID_, this->arguments_[0], this->arguments_[1], this->arguments_[2], this->arguments_[3], this->arguments_[4]);
    default:
      assert(0);
      return true; // return true to avoid that this functions gets called over and over again
  }
}

void FunctionCall::setCall( uint32_t networkID, uint32_t objectID, const MultiType& mt1, const MultiType& mt2, const MultiType& mt3, const MultiType& mt4, const MultiType& mt5){

  // first determine the size that has to be reserved for this call
  uint32_t callsize = 3*sizeof(uint32_t); //size for network-function-id and nrOfArguments and the objectID
  uint32_t nrOfArguments = 0;
  if(!mt1.null())
  {
    nrOfArguments++;
    callsize += mt1.getNetworkSize();
    this->arguments_.push_back(mt1);
    if(!mt2.null())
    {
      nrOfArguments++;
      callsize += mt2.getNetworkSize();
      this->arguments_.push_back(mt2);
      if(!mt3.null())
      {
        nrOfArguments++;
        callsize += mt3.getNetworkSize();
        this->arguments_.push_back(mt3);
        if(!mt4.null())
        {
          nrOfArguments++;
          callsize += mt4.getNetworkSize();
          this->arguments_.push_back(mt4);
          if(!mt5.null())
          {
            nrOfArguments++;
            callsize += mt5.getNetworkSize();
            this->arguments_.push_back(mt5);
          }
        }
      }
    }
  }
  this->nrOfArguments_ = nrOfArguments;
  this->functionID_ = networkID;
  this->objectID_ = objectID;
  this->size_ = callsize;
}

void FunctionCall::loadData(uint8_t*& mem)
{
  this->functionID_ = *(uint32_t*)mem;
  this->nrOfArguments_ = *(uint32_t*)(mem+sizeof(uint32_t));
  this->objectID_ = *(uint32_t*)(mem+2*sizeof(uint32_t));
  mem += 3*sizeof(uint32_t);
  for( unsigned int i=0; i<this->nrOfArguments_; ++i )
  {
    this->arguments_.push_back(MultiType());
    this->arguments_.back().importData(mem);
  }
}

void FunctionCall::saveData(uint8_t*& mem)
{
  // now serialise the mt values and copy the function id and isStatic
  *(uint32_t*)mem = this->functionID_;
  *(uint32_t*)(mem+sizeof(uint32_t)) = this->nrOfArguments_;
  *(uint32_t*)(mem+2*sizeof(uint32_t)) = this->objectID_;
  mem += 3*sizeof(uint32_t);
  for(auto & elem : this->arguments_)
  {
    elem.exportData( mem );
  }
}



} //namespace orxonox