#include <iostream>
// #include <string>
#include <signal.h>

#include <graph/graph.hpp>
#include <graph/graph_plaintext.hpp>

#include <functional>

#include "graph_browser.hpp"

std::function<void(int)> callback_wrapper;

void callback_function( int value )
{
  callback_wrapper(value);
}

// template<typename T>T conveter(T){};
// template<>std::string conveter(const std::string& s)<std::string>{retun s;}
inline std::string atoa(const std::string s)
{
  return s;
}

int main(int argc, char* argv[])
{
  if (argc != 2) {
    std::cout << "Usage: " << argv[0] << " [graph file]" << std::endl;
    return 1;
  }
  const std::string graph_file(argv[1]);
  Graph<std::string> g;
  try {
    g = readGraphFromPlainText<std::string>(graph_file, atoa);
  } catch (std::runtime_error &e) {
    std::cerr << e.what() << std::endl;
    return 1;
  }

  GraphBrowser::init();
  {
    GraphBrowser gb(g);

    if (!empty(g))
      gb.setStartVertex(*g.begin());

    callback_wrapper = std::bind(&GraphBrowser::terminalResizedEvent,
                                 &gb,
                                 std::placeholders::_1);
    struct sigaction act;
    act.sa_handler = callback_function;
    sigaction(SIGWINCH, &act, NULL);

    gb.mainLoop();
  }

  GraphBrowser::destroy();
  writeGraphToPlainText<std::string>(g, graph_file, atoa);

  return EXIT_SUCCESS;
}