/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2010 University of Bonn. All rights reserved.
 * Please see the LICENSE file or "Copyright notice" in builder.cpp for details.
 */

/*
 * hello.cpp
 *
 *  Created on: Sep 20, 2011
 *      Author: heber
 */

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <boost/python.hpp>

#include "CodePatterns/MemDebug.hpp"

#include <iostream>
#include <map>
#include <string>

#include "CodePatterns/Registry.hpp"
#include "CodePatterns/Singleton.hpp"

#include "CodePatterns/Singleton_impl.hpp"
#include "CodePatterns/Registry_impl.hpp"

class Atrait;

class Otrait
{
public:
  Otrait(const std::string &_text) : text(_text) {}
  ~Otrait() {}
  const std::string & getName() const { return text; }
private:
  std::string text;
};

class Atrait : public Otrait
{
public:
  Atrait() : Otrait(std::string("Atrait")) 
  {
    options.insert( std::make_pair ( "AOtrait", new Otrait("AOtrait") ) );
  }
  Atrait(const Atrait &trait) : Otrait(trait) 
  {
    for (Omap::const_iterator iter = trait.options.begin(); iter != trait.options.end(); ++iter)
      options.insert( std::make_pair ( "copied AOtrait", new Otrait(*(iter->second)) ) );
  }
  ~Atrait() 
  {
    for (Omap::iterator iter = options.begin(); iter != options.end(); ++iter)
      delete iter->second;
    options.clear();
  }
private:
  typedef std::map<std::string, Otrait * > Omap;

  Omap options;
};

class Action
{
public:
  Action(const Atrait &_trait) : trait(_trait) {}
  ~Action() {}

  const char * greet() { return "hello, this is MoleCuilder."; }

  const std::string & getName() const { return trait.getName(); }

  const Atrait trait;
private:
};


/** Action Registry.
 *
 * The Action registry is a storage for any Action instance to retrieved by name.
 * It is a singleton and can be called from anywhere.
 *
 */
class ActionRegistry : public Singleton<ActionRegistry>, public Registry<Action>
{
  friend class Singleton<ActionRegistry>;
  //friend class Registry<Action>;

public:
  Action* getActionByName(const std::string name);
  void fillRegistry();

private:
  ActionRegistry();
  ~ActionRegistry();
};

/** Constructor for class ActionRegistry.
 */
ActionRegistry::ActionRegistry()
{
  std::cout << "ActionRegistry::ActionRegistry() called, instance is " << this << "." << std::endl;
  fillRegistry();
}

void ActionRegistry::fillRegistry()
{
  Action *presentAction = NULL;
  {
    Atrait atrait;
    presentAction = new Action(atrait);
    registerInstance(presentAction);
  }
  std::cout << "presentAction instance is " << presentAction << "." << std::endl;
}


/** Destructor for class ActionRegistry.
 */
ActionRegistry::~ActionRegistry()
{
  std::cout << "ActionRegistry::~ActionRegistry() called, instance is " << this << "." << std::endl;
  cleanup();
}

/** Just passes on call to Registry<Action>::getByName().
 * \param name name of Action
 * \return pointer to Action
 */
Action* ActionRegistry::getActionByName(const std::string name)
{
  return getByName(name);
}


char const* greet()
{
  return ActionRegistry::getInstance().getActionByName("Atrait")->greet();
}

BOOST_PYTHON_MODULE(Pythontest)
{
    boost::python::def("greet", greet);
}