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//=============================================================================
//
//                               OpenFlipper
//        Copyright (C) 2008 by Computer Graphics Group, RWTH Aachen
//                           www.openflipper.org
//
//-----------------------------------------------------------------------------
//
//                                License
//
//  OpenFlipper is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  OpenFlipper 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 Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public License
//  along with OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
//
//   $Revision$
//   $Author$
//   $Date$
//
//=============================================================================




//=============================================================================
//
//  CLASS Core - IMPLEMENTATION
//
//=============================================================================


//== INCLUDES =================================================================

// -------------------- mview
#include "Core.hh"
#include <OpenFlipper/common/Types.hh>

//== IMPLEMENTATION ==========================================================



void Core::slotPluginExists( QString _pluginName , bool& _exists ) {

  for ( int i = 0 ; i < (int)plugins.size(); ++i ) {
    if ( plugins[i].rpcName == _pluginName ) {
      _exists = true;
      return;
    }
  }

  _exists = false;
}

void Core::slotFunctionExists( QString _pluginName , QString _functionName , bool& _exists  ) {

  //Find plugin
  int plugin = -1;
  for ( int i = 0 ; i < (int)plugins.size(); ++i ) {
    if ( plugins[i].rpcName == _pluginName ) {
      plugin = i;
      break;
    }
  }

  if ( plugin == -1 ) {
    _exists = false;
    return;
  }

  _exists = plugins[plugin].rpcFunctions.contains(_functionName);
}

void Core::slotCall( QString _pluginName , QString _functionName , bool& _success  ) {

  //Find plugin
  int plugin = -1;
  for ( int i = 0 ; i < (int)plugins.size(); ++i ) {
    if ( plugins[i].rpcName == _pluginName ) {
      plugin = i;
      break;
    }
  }

  if ( plugin == -1 ) {
    _success = false;
    emit log(LOGERR, "Unable to call function from Plugin : " + _pluginName + " ( Plugin not Found! )");
    return;
  }

  if ( !plugins[plugin].rpcFunctions.contains(_functionName) ) {
    _success = false;
    emit log(LOGERR, "Unable to call function from Plugin : " + _pluginName);
    emit log(LOGERR, "Function " + _functionName + " not found!");
    return;
  }

  scriptEngine_.evaluate(_pluginName + "." + _functionName );
  if ( scriptEngine_.hasUncaughtException() ) {
    _success = false;
    QScriptValue result = scriptEngine_.uncaughtException();
    QString exception = result.toString();
    emit log( LOGERR , "RPC failed with : " + exception );
    return;
  }

  _success = true;

}

void Core::slotCall( QString _expression , bool& _success  ) {

  scriptEngine_.evaluate( _expression );
  if ( scriptEngine_.hasUncaughtException() ) {
    _success = false;
    QScriptValue result = scriptEngine_.uncaughtException();
    QString exception = result.toString();
    emit log( LOGERR , "RPC failed with : " + exception );
    return;
  }

  _success = true;

}

void Core::slotGetValue(QString _expression, QVariant& _result ){
  //execute the expression
  bool ok;

  slotCall("var tmpValue=" + _expression + ";", ok);

  if (!ok){
    _result = QVariant();
    return;
  }

  //get the return value
  QScriptValue val = scriptEngine_.globalObject().property("tmpValue");

//   std::cerr << "Type:" << val.toVariant().userType() << std::endl; 
//   std::cerr << "Value:" << val.toVariant().toString().toStdString()<< std::endl;

  _result = val.toVariant();
}

//=============================================================================