// -*- c++ -*-

// Use a DIMACS max flow file as follows:

// graph_wrapper_time dimacs_max_flow_file

#include <iostream>

#include <fstream>

#include <string>

#include <vector>

#include <hugo/invalid.h>

#include <hugo/time_measure.h>

#include <hugo/graph_wrapper.h>

#include <hugo/preflow.h>

#include <hugo/dimacs.h>

#include <hugo/list_graph.h>

using namespace hugo;

using std::cout;

using std::endl;

template<typename Graph>

void timeTest(std::string str, Graph& g) {

  g.clear();

  typename Graph::Node s;

  typename Graph::Node t;

  typedef typename Graph::template EdgeMap<int> FlowMap;

  FlowMap cap(g);

  FlowMap flow(g);

  std::ifstream is(str.c_str());

  readDimacs(is, g, cap, s, t);

  Timer ts;

  ts.reset();

  typedef Preflow<Graph, int, FlowMap, FlowMap> MyPreflow;

  MyPreflow max_flow(g, s, t, cap, flow);

  max_flow.run(MyPreflow::NO_FLOW);

  cout << "flow value: " << max_flow.flowValue() << endl;

  cout << ts << endl;

}

int main(int, char** argv) {

   std::string in=argv[1];

  typedef ListGraph Graph; 

  Graph g;

  timeTest<Graph>(in, g);

  typedef GraphWrapper<Graph> Graph1;

  Graph1 g1(g);

  timeTest<Graph1>(in, g1);

  typedef GraphWrapper<Graph1> Graph2;

  Graph2 g2(g1);

  timeTest<Graph2>(in, g2);

  typedef GraphWrapper<Graph2> Graph3;

  Graph3 g3(g2);

  timeTest<Graph3>(in, g3);

  typedef GraphWrapper<Graph3> Graph4;

  Graph4 g4(g3);

  timeTest<Graph4>(in, g4);

  typedef GraphWrapper<Graph4> Graph5;

  Graph5 g5(g4);

  timeTest<Graph5>(in, g5);

  typedef GraphWrapper<Graph5> Graph6;

  Graph6 g6(g5);

  timeTest<Graph6>(in, g6);  

  typedef GraphWrapper<Graph6> Graph7;

  Graph7 g7(g6);

  timeTest<Graph7>(in, g7);

  return 0;

}