/////////////////////////////////////////////////////////////////////////
// Client.cpp - uses concrete factory and product through abstractions //
//                                                                     //
// Jim Fawcett, CSE776 - Design Patterns, Summer 2009                  //
/////////////////////////////////////////////////////////////////////////
/*
 * Notes:
 * - If you examine FactoryMethod.h and ConfigureClient.h you will see that
 *   the client has no binding to either concrete product or concrete factory.
 * - If we need to substitute a different concrete product subclass, we must
 *   rebuild the ConfigureClient module but do not need to rebuild the client.
 * - The client can use an open-ended number of concrete products since we
 *   provided the Configure::doConfigure(ProductIndex) with a parameter.
 */
#include "FactoryMethod.h"
#include "ConfigureClient.h"
#include <iostream>

void main()
{
  std::cout << "\n  Demonstrating FactoryMethod Skeleton";
  std::cout << "\n ======================================\n";

  int ProductIndex = 0;

  Configure cc;
  std::cout << "\n  configuring client with product index = " << ProductIndex;
  Creator* pCreator = cc.doConfigure(ProductIndex);

  if(pCreator)
  {
    std::cout << "\n  accessing product operation through factory method";
    pCreator->DoOperation();
  }
  else
    std::cout << "\n  no definition for creator with index = " << ProductIndex;
  std::cout << "\n";
  delete pCreator;

  ProductIndex = 1;
  std::cout << "\n  configuring client with product index = " << ProductIndex;
  pCreator = cc.doConfigure(ProductIndex);

  if(pCreator)
  {
    std::cout << "\n  accessing product operation through factory method";
    pCreator->DoOperation();
  }
  else
    std::cout << "\n  no definition for creator with index = " << ProductIndex;
  std::cout << "\n";
  delete pCreator;

  std::cout << "\n  client can also access the product through Product interface:";
  ProductIndex = 0;
  pCreator = cc.doConfigure(ProductIndex);
  Product* pProduct = pCreator->FactoryMethod();
  pProduct->ProductOperation();
  std::cout << "\n\n";
  delete pProduct;
  delete pCreator;
}