/////////////////////////////////////////////////////////////////////////
// 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 "ConfigureClient.h"
#include "Application.h"
#include <iostream>

void main()
{
  std::cout << "\n  Demonstrating Document-Based Application";
  std::cout << "\n ==========================================\n";


  int DocIndex = 0;

  Configure conf;
  std::cout << "\n  configuring client with document index = " << DocIndex;
  IApplication* pApp = conf.doConfigure(DocIndex);

  if(pApp)
  {
    std::cout << "\n  accessing document operation through factory method";
    pApp->DoEdit();
  }
  else
    std::cout << "\n  no definition for document with index = " << DocIndex;
  std::cout << "\n";
  delete pApp;

  DocIndex = 1;
  std::cout << "\n  configuring client with document index = " << DocIndex;
  pApp = conf.doConfigure(DocIndex);

  if(pApp)
  {
    std::cout << "\n  accessing document operation through factory method";
    pApp->DoEdit();
  }
  else
    std::cout << "\n  no definition for creator with index = " << DocIndex;
  std::cout << "\n";
  delete pApp;

  std::cout << "\n  client can also access the document through document interface:";
  DocIndex = 0;
  pApp = conf.doConfigure(DocIndex);
  IDocument* pDoc = pApp->CreateDocument();
  pDoc->Edit();
  std::cout << "\n\n";
  delete pDoc;
  delete pApp;
}