#include "mapstorage.h"

#include <gtkmm.h>

#include <cmath>

MapStorage::MapStorage() : modified(false), file_name("")

{

  nodemap_storage["coordinates_x"] = new Graph::NodeMap<double>(graph);

  coords.setXMap(*nodemap_storage["coordinates_x"]);

  nodemap_storage["coordinates_y"] = new Graph::NodeMap<double>(graph);

  coords.setYMap(*nodemap_storage["coordinates_y"]);

  nodemap_storage["id"] = new Graph::NodeMap<double>(graph);

  edgemap_storage["id"] = new Graph::EdgeMap<double>(graph);

  nodemap_default["id"] = 1.0;

  edgemap_default["id"] = 1.0;

}

MapStorage::~MapStorage()

{

  for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =

      nodemap_storage.begin(); it != nodemap_storage.end(); ++it)

  {

    delete it->second;

  }

  for (std::map<std::string, Graph::EdgeMap<double>*>::const_iterator it =

      edgemap_storage.begin(); it != edgemap_storage.end(); ++it)

  {

    delete it->second;

  }

}

int MapStorage::addNodeMap(const std::string & name, Graph::NodeMap<double> *nodemap, double default_value = 0.0)

{

  if( nodemap_storage.find(name) == nodemap_storage.end() )

    {

      nodemap_storage[name]=nodemap;

      // set the maps default value

      nodemap_default[name] = default_value;

      return 0;

    }

  return 1;

}

int MapStorage::addEdgeMap(const std::string & name, Graph::EdgeMap<double> *edgemap, double default_value = 0.0)

{

  if( edgemap_storage.find(name) == edgemap_storage.end() )

    {

      edgemap_storage[name]=edgemap;

      // set the maps default value

      edgemap_default[name] = default_value;

      return 0;

    }

  return 1;

}

double MapStorage::maxOfNodeMap(const std::string & name)

{

  double max=0;

  for (NodeIt j(graph); j!=INVALID; ++j)

  {

    if( (*nodemap_storage[name])[j]>max )

    {

      max=(*nodemap_storage[name])[j];

    }

  }

  return max;

}

double MapStorage::maxOfEdgeMap(const std::string & name)

{

  double max=0;

  for (EdgeIt j(graph); j!=INVALID; ++j)

  {

    if( (*edgemap_storage[name])[j]>max )

    {

      max=(*edgemap_storage[name])[j];

    }

  }

  return max;

}

double MapStorage::minOfNodeMap(const std::string & name)

{

  NodeIt j(graph);

  double min;

  if(j!=INVALID)

    {

      min=(*nodemap_storage[name])[j];

    }

  else

    {

      min=0;

    }

  for (; j!=INVALID; ++j)

  {

    if( (*nodemap_storage[name])[j]<min )

    {

      min=(*nodemap_storage[name])[j];

    }

  }

  return min;

}

double MapStorage::minOfEdgeMap(const std::string & name)

{

  EdgeIt j(graph);

  double min;

  if(j!=INVALID)

    {

      min=(*edgemap_storage[name])[j];

    }

  else

    {

      min=0;

    }

  for (EdgeIt j(graph); j!=INVALID; ++j)

  {

    if( (*edgemap_storage[name])[j]<min )

    {

      min=(*edgemap_storage[name])[j];

    }

  }

  return min;

}

int MapStorage::readFromFile(const std::string &filename)

{

  bool read_x = false;

  bool read_y = false;

  bool read_edge_id = false;

  try {

    LemonReader lreader(filename);

    ContentReader content(lreader);

    lreader.run();

    const std::vector<std::string>& nodeMapNames = content.nodeSetMaps(0);

    const std::vector<std::string>& edgeMapNames = content.edgeSetMaps(0);

    GraphReader<Graph> greader(filename, graph);

    for (std::vector<std::string>::const_iterator it = nodeMapNames.begin();

        it != nodeMapNames.end(); ++it)

    {

      if (*it == "coordinates_x")

      {

        read_x = true;

        //std::cout << "read X nodemap" << std::endl;

      }

      else if (*it == "coordinates_y")

      {

        read_y = true;

        //std::cout << "read Y nodemap" << std::endl;

      }

      else if (*it == "id")

      {

        //std::cout << "read id nodemap" << std::endl;

      }

      else

      {

        nodemap_storage[*it] = new Graph::NodeMap<double>(graph);

        //std::cout << "read " << *it << " nodemap" << std::endl;

      }

      greader.readNodeMap(*it, *nodemap_storage[*it]);

    }

    for (std::vector<std::string>::const_iterator it = edgeMapNames.begin();

        it != edgeMapNames.end(); ++it)

    {

      if (*it == "id")

      {

        //std::cout << "read id edgemap" << std::endl;

      }

      else

      {

        edgemap_storage[*it] = new Graph::EdgeMap<double>(graph);

        //std::cout << "read " << *it << " edgemap" << std::endl;

      }

      greader.readEdgeMap(*it, *edgemap_storage[*it]);

    }

    greader.run();

  } catch (DataFormatError& error) {

    Gtk::MessageDialog mdialog("Read Error");

    mdialog.set_message(error.what());

    mdialog.run();

    clear();

    return 1;

  }

  if (!read_edge_id)

  {

    edgemap_storage["id"] = new Graph::EdgeMap<double>(graph);

    int i = 1;

    for (EdgeIt e(graph); e != INVALID; ++e)

    {

      (*edgemap_storage["id"])[e] = i++;

    }

  }

  if (!read_x || !read_y)

  {

    int node_num = 0;

    for (NodeIt n(graph); n != INVALID; ++n)

    {

      node_num++;

    }

    const double pi = 3.142;

    double step = 2 * pi / (double) node_num;

    int i = 0;

    for (NodeIt n(graph); n != INVALID; ++n)

    {

      nodemap_storage["coordinates_x"]->set(n, 250.0 * cos(i * step));

      nodemap_storage["coordinates_y"]->set(n, 250.0 * sin(i * step));

      i++;

    }

  }

  // fill in the default values for the maps

  for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =

      nodemap_storage.begin(); it != nodemap_storage.end(); ++it)

  {

    if ((it->first != "id") &&

        (it->first != "coordiantes_x") &&

        (it->first != "coordinates_y"))

    {

      nodemap_default[it->first] = 0.0;

    }

    else if (it->first == "id")

    {

      NodeIt n(graph);

      double max = (*nodemap_storage["id"])[n];

      for (; n != INVALID; ++n)

      {

        if ((*nodemap_storage["id"])[n] > max)

          max = (*nodemap_storage["id"])[n];

      }

      nodemap_default["id"] = max + 1.0;

    }

  }

  for (std::map<std::string, Graph::EdgeMap<double>*>::const_iterator it =

      edgemap_storage.begin(); it != edgemap_storage.end(); ++it)

  {

    if (it->first != "id")

    {

      edgemap_default[it->first] = 0.0;

    }

    else

    {

      double max = std::numeric_limits<double>::min();

      for (EdgeIt e(graph); e != INVALID; ++e)

      {

        if ((*edgemap_storage["id"])[e] > max)

          max = (*edgemap_storage["id"])[e];

      }

      if (max > std::numeric_limits<double>::min())

        edgemap_default["id"] = max + 1.0;

      else

        edgemap_default["id"] = 1.0;

    }

  }

  return 0;

}

void MapStorage::writeToFile(const std::string &filename)

{

  GraphWriter<Graph> gwriter(filename, graph);

  for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =

      nodemap_storage.begin(); it != nodemap_storage.end(); ++it)

  {

    gwriter.writeNodeMap(it->first, *(it->second));

    //std::cout << "wrote " << it->first << " nodemap" << std::endl;

  }

  for (std::map<std::string, Graph::EdgeMap<double>*>::const_iterator it =

      edgemap_storage.begin(); it != edgemap_storage.end(); ++it)

  {

    gwriter.writeEdgeMap(it->first, *(it->second));

    //std::cout << "wrote " << it->first << " edgemap" << std::endl;

  }

  gwriter.run();

}

void MapStorage::clear()

{

  for (std::map<std::string, Graph::NodeMap<double>*>::iterator it =

      nodemap_storage.begin(); it != nodemap_storage.end(); ++it)

  {

    if ((it->first != "coordinates_x") &&

        (it->first != "coordinates_y") &&

        (it->first != "id"))

    {

      delete it->second;

      nodemap_storage.erase(it);

    }

  }

  for (std::map<std::string, Graph::EdgeMap<double>*>::iterator it =

      edgemap_storage.begin(); it != edgemap_storage.end(); ++it)

  {

    if (it->first != "id")

    {

      delete it->second;

      edgemap_storage.erase(it);

    }

  }

  for (std::map<std::string, double>::iterator it =

      nodemap_default.begin(); it != nodemap_default.end(); ++it)

  {

    if (it->first != "id")

      nodemap_default.erase(it);

  }

  for (std::map<std::string, double>::iterator it =

      edgemap_default.begin(); it != edgemap_default.end(); ++it)

  {

    if (it->first != "id")

      edgemap_default.erase(it);

  }

  graph.clear();

  file_name = "";

  modified = false;

}