/////////////////////////////////////////////////////////////////////
// persistentGraph.cpp - convert graph to/from XML file            //
// ver 2                                                           //
// Language:    C++, Visual Studio, 2010, SP1                      //
// Platform:    Toshiba Portege R705, Windows 7, SP1               //
// Application: Summer Projects                                    //
// Author:      Jim Fawcett, Syracuse University, CST 4-187        //
//              www.lcs.syr.edu/faculty/fawcett, (315) 443-3948    //
/////////////////////////////////////////////////////////////////////

#ifdef TEST_PERSISTENTGRAPH

#include "persistentGraph.h"
#include <iostream>
#include <fstream>

typedef vertex<std::string,std::string> vert;
typedef edge<std::string,std::string> edg;
typedef graph<std::string,std::string> grph;

int main(int argc, char* argv[])
{
  std::cout << "\n  Testing PersistentGraph";
  std::cout << "\n =========================\n";

  std::string filename;
  if(argc < 2)
  {
    filename = "graph.xml";
  }
  else
  {
    filename = argv[1];
  }
  std::ifstream in;
  in.open(filename);
  if(!in.good())
  {
    std::cout << "\n  can't open " << filename;
    return 1;
  }
  std::cout << "\n  processing " << filename << "\n";
  std::string fileString;
  char ch;
  while(true)
  {
    ch = in.get();
    if(!in.good())
      break;
    fileString += ch;
  }
  in.close();
  std::cout << "\n" << fileString << "\n";

  std::cout << "\n  creating graph from XML string";
  std::cout << "\n --------------------------------";
  grph gr;
  graphFromXML<std::string,std::string>(gr, fileString);
  std::cout << showGraph(gr,true) << std::endl;

  std::cout << "\n  adding edge";
  std::cout << "\n -------------";
  vert* pVfrom = gr.findVertex("v2");
  vert* pVto = gr.findVertex("v1");
  if(pVfrom == 0 || pVto == 0)
  {
    std::cout << "\n  can't create edge";
  }
  else
  {
    gr.addEdge("e7",gr.findVertex("v2"),gr.findVertex("v1"));
    gr.name() = gr.name() + " modified";
  }
  std::cout << showGraph(gr,true) << std::endl;

  std::cout << "\n  persisting graph to XML string";
  std::cout << "\n --------------------------------";
  std::string grXML = graphToXML(gr);
  std::cout << "\n  " << grXML << std::endl;

  std::cout << "\n  recreating graph from persisted string";
  std::cout << "\n ----------------------------------------";
  grph gr2;
  graphFromXML(gr2,grXML);
  std::cout << showGraph(gr2,true);
  std::cout << "\n\n";
  return 0;
}
#endif