/////////////////////////////////////////////////////////////////
// GraphReaderDemo.cpp - Project #2 Experiment reading graphs  //
//                                                             //
// Jim Fawcett, CSE687 - Object Oriented Design, Spring 2010   //
/////////////////////////////////////////////////////////////////

#include <string>
#include <iostream>

///////////////////////////////////////////////////////////
// graph<V,E> class
// Just enough definition to test type decisions for
// graph reading

template<typename V, typename E> class graph {};

///////////////////////////////////////////////////////////
// global function uses RTTI

template <typename S, typename T>
bool isTypeOf(T t)
{
  return typeid(S) == typeid(T); 
}

///////////////////////////////////////////////////////////
// GraphReader class - just an incomplete prototype

class GraphReader
{
public:
  template <typename V, typename E>
  static bool Read(graph<V,E>& g);
};

template <typename V, typename E>
bool GraphReader::Read(graph<V,E>& g)
{
  std::string testStr;
  if(isTypeOf<V>(testStr) && isTypeOf<E>(testStr))
  {
    std::cout << "\n  will build graph<std::string,std::string>";
    // Attempt to read graph<string,string> from XML file.
    // If you can't find one, then return false, else read and
    return true;
  }
  if(isTypeOf<V>(testStr) && isTypeOf<E>(3.5))
  {
    std::cout << "\n  will build graph<std::string, double>";
    // Attempt to read graph<string,double> from XML file.
    // If you can't find one, then return false, else read and
    return true;
  }
  std::cout << "\n  can't read a graph of this type";
  return false;  // simulates graph of unsupported types
}
///////////////////////////////////////////////////////////
// Test Stub

void main()
{
  graph<std::string, std::string> gss;
  GraphReader::Read(gss);

  graph<std::string, double> gsd;
  GraphReader::Read(gsd);

  graph<double, std::string> gds;
  GraphReader::Read(gds);

  std::cout << "\n\n";
}