/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image
#                        pour la Sant�)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  This software is governed by the CeCILL-B license under French law and
#  abiding by the rules of distribution of free software. You can  use,
#  modify and/ or redistribute the software under the terms of the CeCILL-B
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#  modify and redistribute granted by the license, users are provided only
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 */

/*
 * modelCDMApplication.cpp
 *
 *  Created on: Nov 23, 2012
 *      Author: Daniel Felipe Gonzalez Obando
 */

#include "modelCDMApplication.h"

#include <fstream>
#include <sstream>
#include <algorithm>

#include "CDMUtilities.h"
#include "creaWx.h"
#include "wx/dir.h"

modelCDMApplication::modelCDMApplication()
{
  mainFile = NULL;
}

modelCDMApplication::modelCDMApplication(modelCDMIProjectTreeNode* parent, const std::string& path, const std::string& name, const int& level)
{
  std::cout << "creating application: " + path + "\n";
  this->parent = parent;
  this->mainFile = NULL;
  //folder name
  this->name = name;
  //path
  this->path = CDMUtilities::fixPath(path);
  //type
  this->type = wxDIR_DIRS;
  //level
  this->level = level;
  //open CMakeList
  std::string pathMakeLists = path + CDMUtilities::SLASH + "CMakeLists.txt";

  std::ifstream confFile;
  confFile.open((pathMakeLists).c_str());

  std::string word;
  while(confFile.is_open() && !confFile.eof())
    {
      //get sets
      std::getline(confFile,word,'(');
      std::vector<std::string> wordBits;
      CDMUtilities::splitter::split(wordBits,word," (\n",CDMUtilities::splitter::no_empties);

      if(wordBits[wordBits.size()-1] == "SET")
        {
          //get library name
          std::getline(confFile,word,')');
          CDMUtilities::splitter::split(wordBits, word, " ", CDMUtilities::splitter::no_empties);
          if(wordBits[0] == "EXE_NAME")
            {
              word = wordBits[1];
              for (int i = 2; i < (int)(wordBits.size()); i++)
                {
                  word += " " + wordBits[i];
                }

              this->executableName = word;
            }
        }
    }
  confFile.close();

  //add library contents

  this->children.clear();
  wxDir dir(crea::std2wx((this->path).c_str()));
  if (dir.IsOpened())
    {
      wxString fileName;
      //folders
      bool cont = dir.GetFirst(&fileName, wxEmptyString, wxDIR_DIRS);
      while (cont)
        {
          std::string stdfileName = crea::wx2std(fileName);

          modelCDMFolder* folder = new modelCDMFolder(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);
          this->folders.push_back(folder);
          this->children.push_back(folder);

          cont = dir.GetNext(&fileName);
        }
      //files
      cont = dir.GetFirst(&fileName, wxEmptyString, wxDIR_FILES);
      while (cont)
        {
          std::string stdfileName = crea::wx2std(fileName);

          //if CMakeLists, create CMakeLists
          if(stdfileName == "CMakeLists.txt")
            {
              this->CMakeLists = new modelCDMCMakeListsFile(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);
              this->children.push_back(this->CMakeLists);
            }
          //if is an unknown file, create file
          else
            {
              modelCDMFile* file = new modelCDMFile(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);
              std::string extension = stdfileName.substr(stdfileName.size()-4);
              if (mainFile == NULL && (extension == ".cxx" || extension == ".cpp"))
                {
                  std::ifstream fileStream;
                  std::string word;
                  fileStream.open((this->path + CDMUtilities::SLASH + stdfileName).c_str());
                  while (fileStream.is_open() && !fileStream.eof())
                    {
                      //get sets
                      std::getline(fileStream,word,'(');
                      std::vector<std::string> wordBits;
                      CDMUtilities::splitter::split(wordBits,word," \n",CDMUtilities::splitter::no_empties);
                      if (wordBits[wordBits.size() - 1] == "main" || wordBits[wordBits.size() - 1] == "IMPLEMENT_APP")
                        {
                          this->mainFile = file;
                        }
                    }
                  fileStream.close();
                }
              this->children.push_back(file);
            }

          cont = dir.GetNext(&fileName);
        }
    }
  this->SortChildren();
  std::sort(this->folders.begin(), this->folders.end(), CompareNodeItem);
}

modelCDMApplication::~modelCDMApplication()
{
}

const std::string& modelCDMApplication::GetExecutableName() const
{
  return this->executableName;
}

modelCDMFile* modelCDMApplication::GetMainFile() const
{
  return this->mainFile;
}

bool modelCDMApplication::SetExecutableName(const std::string& fileName, std::string*& result)
{
  std::vector<std::string> words;
  CDMUtilities::splitter::split(words, fileName, ", /\\\"", CDMUtilities::splitter::no_empties);
  std::string fileNameReal = words[0];
  for (int i = 1; i < (int)(words.size()); i++)
    {
      fileNameReal += "-" + words[i];
    }

  std::string line;
  //opening original cmakelists
  std::ifstream in((this->path + CDMUtilities::SLASH + "CMakeLists.txt").c_str());
  if( !in.is_open())
    {
      result = new std::string("CMakeLists.txt file failed to open.");
      return false;
    }
  //opening temporal cmakelists
  std::ofstream out((this->path + CDMUtilities::SLASH + "CMakeLists.txt.tmp").c_str());
  if( !out.is_open())
    {
      result = new std::string("CMakeLists.txt.tmp file failed to open.");
      return false;
    }
  //copying contents from original to temporal and making changes
  while (getline(in, line))
    {
      if(line.find("SET ( EXE_NAME") != std::string::npos)
        line = "SET ( EXE_NAME  " + fileNameReal + "  )";
      out << line << std::endl;
    }
  in.close();
  out.close();
  //delete old file and rename new file
#ifdef _WIN32
  std::string renameCommand = "move /Y \"" + this->path + CDMUtilities::SLASH + "CMakeLists.txt.tmp\" \"" + this->path + CDMUtilities::SLASH + "CMakeLists.txt\"";
#else
  std::string renameCommand = "mv \"" + this->path + CDMUtilities::SLASH + "CMakeLists.txt.tmp\" \"" + this->path + CDMUtilities::SLASH + "CMakeLists.txt\"";
#endif
  
  if(system(renameCommand.c_str()))
    {
      result = new std::string("An error occurred while running '" + renameCommand + "'.");
      return false;
    }

  this->executableName = fileNameReal;
  return true;
}

modelCDMFolder* modelCDMApplication::CreateFolder(const std::string& name, std::string*& result)
{
  //TODO:: mkdir depending on OS
  std::string command = "mkdir " + path + CDMUtilities::SLASH + name;
  if(system(command.c_str()))
    {
      result = new std::string("Error executing: " + command + ".");
      return NULL;
    }
  modelCDMFolder* folder = new modelCDMFolder(this, path + CDMUtilities::SLASH + name, name, level + 1);
  this->folders.push_back(folder);
  this->children.push_back(folder);

  return folder;
}

const bool modelCDMApplication::Refresh(std::string*& result)
{
  this->mainFile = NULL;
  std::cout << "refreshing application: " << this->executableName << std::endl;
  //set attributes
  this->type = wxDIR_DIRS;

  //open CMakeList
  std::string pathMakeLists = path + CDMUtilities::SLASH + "CMakeLists.txt";

  std::ifstream confFile;
  confFile.open((pathMakeLists).c_str());

  std::string word;
  while(confFile.is_open() && !confFile.eof())
    {
      //get sets
      std::getline(confFile,word,'(');
      std::vector<std::string> wordBits;
      CDMUtilities::splitter::split(wordBits,word," (\n",CDMUtilities::splitter::no_empties);

      if(wordBits[wordBits.size()-1] == "SET")
        {
          //get app name
          std::getline(confFile,word,')');
          CDMUtilities::splitter::split(wordBits, word, " ", CDMUtilities::splitter::no_empties);
          if(wordBits[0] == "EXE_NAME")
            {
              word = wordBits[1];
              for (int i = 2; i < (int)(wordBits.size()); i++)
                {
                  word += " " + wordBits[i];
                }

              this->executableName = word;
            }
        }
    }

  confFile.close();

  //check children
  std::vector<bool> checked(this->children.size(), false);
  std::vector<bool> checkedFolders(this->folders.size(), false);

  //check all folders
  wxDir dir(crea::std2wx((this->path).c_str()));
  if (dir.IsOpened())
    {
      wxString fileName;
      bool cont = dir.GetFirst(&fileName, wxEmptyString, wxDIR_DIRS);
      while (cont)
        {
          std::string stdfileName = crea::wx2std(fileName);
          std::string applicationName = stdfileName;
          //check if they already exist
          bool found = false;
          for (int i = 0; !found && i < (int)(this->folders.size()); i++)
            {
              if (this->folders[i]->GetName() == applicationName)
                {
                  found = true;
                  int pos = std::find(this->children.begin(), this->children.end(), this->folders[i]) - this->children.begin();
                  checked[pos] = true;
                  checkedFolders[i] = true;
                  if(!this->folders[i]->Refresh(result))
                    return false;
                }
            }
          if(!found)
            {
              modelCDMFolder* folder = new modelCDMFolder(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);
              this->folders.push_back(folder);
              this->children.push_back(folder);
            }
          cont = dir.GetNext(&fileName);
        }

      cont = dir.GetFirst(&fileName, wxEmptyString, wxDIR_FILES);
      while (cont)
        {
          std::string stdfileName = crea::wx2std(fileName);

          //if CMakeLists, create CMakeLists
          if(stdfileName == "CMakeLists.txt")
            {
              if (this->CMakeLists == NULL)
                {
                  this->CMakeLists = new modelCDMCMakeListsFile(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);
                  this->children.push_back(this->CMakeLists);
                }
              else
                {
                  int pos = std::find(this->children.begin(), this->children.end(), this->CMakeLists) - this->children.begin();
                  checked[pos] = true;
                  if(!this->CMakeLists->Refresh(result))
                    return false;
                }
            }
          //if is an unknown file, create file
          else
            {
              bool found = false;
              for (int i = 0; !found && i < (int)(this->children.size()); i++)
                {
                  if (this->children[i]->GetName() == stdfileName)
                    {
                      found = true;
                      checked[i] = true;

                      if(!this->children[i]->Refresh(result))
                        return false;

                      std::string extension = stdfileName.substr(stdfileName.size()-4);
                      if (mainFile == NULL && (extension == ".cxx" || extension == ".cpp"))
                        {
                          std::ifstream fileStream;
                          std::string word;
                          fileStream.open((this->path + CDMUtilities::SLASH + stdfileName).c_str());
                          while (fileStream.is_open() && !fileStream.eof())
                            {
                              //get sets
                              std::getline(fileStream,word,'(');
                              std::vector<std::string> wordBits;
                              CDMUtilities::splitter::split(wordBits,word," \n",CDMUtilities::splitter::no_empties);
                              if (wordBits[wordBits.size() - 1] == "main")
                                {
                                  this->mainFile = dynamic_cast<modelCDMFile*>(children[i]);
                                }
                            }
                          fileStream.close();
                        }
                    }
                }

              if(!found)
                {
                  modelCDMFile* file = new modelCDMFile(this, this->path + CDMUtilities::SLASH + stdfileName, stdfileName, this->level + 1);

                  std::string extension = stdfileName.substr(stdfileName.size()-4);
                  if (mainFile == NULL && (extension == ".cxx" || extension == ".cpp"))
                    {
                      std::ifstream fileStream;
                      std::string word;
                      fileStream.open((this->path + CDMUtilities::SLASH + stdfileName).c_str());
                      while (fileStream.is_open() && !fileStream.eof())
                        {
                          //get sets
                          std::getline(fileStream,word,'(');
                          std::vector<std::string> wordBits;
                          CDMUtilities::splitter::split(wordBits,word," \n",CDMUtilities::splitter::no_empties);
                          if (wordBits[wordBits.size() - 1] == "main")
                            {
                              this->mainFile = file;
                            }
                        }
                      fileStream.close();
                    }

                  this->children.push_back(file);
                }
            }

          cont = dir.GetNext(&fileName);
        }
    }

  for (int i = 0; i < (int)(checkedFolders.size()); i++)
    {
      if(!checkedFolders[i])
        {
          this->folders.erase(this->folders.begin()+i);
          checkedFolders.erase(checkedFolders.begin()+i);
          i--;
        }
    }
  for (int i = 0; i < (int)(checked.size()); i++)
    {
      if(!checked[i])
        {
          delete this->children[i];
          this->children.erase(this->children.begin()+i);
          checked.erase(checked.begin()+i);
          i--;
        }
    }
  this->SortChildren();
  return true;
}

void modelCDMApplication::CheckStructure(std::map<std::string, bool>& properties)
{
  //check cmake exist
  if(this->CMakeLists != NULL)
    {
      //set default properties
      properties["application " + this->name + " lib ${crea_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${WXWIDGETS_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${KWWidgets_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${VTK_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${ITK_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${GDCM_LIBRARIES}"] = false;
      properties["application " + this->name + " lib ${BOOST_LIBRARIES}"] = false;

      //open cmakelists
      std::ifstream confFile;
      confFile.open((this->CMakeLists->GetPath()).c_str());

      //take everything that is not commented
      std::string fileContent;

      std::string word;
      std::vector<std::string> words;
      while(confFile.is_open() && !confFile.eof())
        {
          std::getline(confFile,word, '\n');
          if(word[0] != '#')
            {
              CDMUtilities::splitter::split(words, word, "#", CDMUtilities::splitter::empties_ok);
              if (words.size() > 0)
                {
                  word = words[0];
                  CDMUtilities::splitter::split(words, word, " ", CDMUtilities::splitter::empties_ok);
                  for (int i = 0; i < (int)(words.size()); i++)
                    {
                      if(words[i].substr(0,2) == "//")
                        break;
                      fileContent += words[i] + " ";
                    }
                }
            }
        }

      //check every instruction
      std::stringstream ss(fileContent);
      while(!ss.eof())
        {
          std::getline(ss,word, '(');

          //check instruction name
          CDMUtilities::splitter::split(words, word, " ", CDMUtilities::splitter::no_empties);

          //set instructions
          if (words.size() > 0 && words[words.size()-1] == "SET")
            {
              std::getline(ss,word, ')');

              CDMUtilities::splitter::split(words, word, " \t", CDMUtilities::splitter::no_empties);
              if (words.size() > 1)
                {
                  if (words[0] == "${EXE_NAME}_LINK_LIBRARIES")
                    {
                      for (int i = 1; i < (int)(words.size()); i++)
                        {
                          properties["application " + this->name + " lib " + words[i]] = true;
                        }
                    }
                }
            }
          else if (words.size() > 0 && words[words.size()-1] == "INCLUDE_DIRECTORIES")
            {
              std::getline(ss,word, ')');

              CDMUtilities::splitter::split(words, word, " \t", CDMUtilities::splitter::no_empties);

              for (int i = 0; i < (int)(words.size()); i++)
                {
                  properties["application " + this->name + " dir " + words[i]] = true;
                }


            }
        }

    }
}