/*=========================================================================

  Program:   CMake - Cross-Platform Makefile Generator
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
  Copyright (c) 2004 Alexander Neundorf neundorf@kde.org, All rights reserved.
  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/

#include "cmExtraCodeBlocksGenerator.h"
#include "cmGlobalUnixMakefileGenerator3.h"
#include "cmLocalUnixMakefileGenerator3.h"
#include "cmMakefile.h"
#include "cmake.h"
#include "cmSourceFile.h"
#include "cmGeneratedFileStream.h"
#include "cmTarget.h"

#include <cmsys/SystemTools.hxx>

//----------------------------------------------------------------------------
void cmExtraCodeBlocksGenerator
::GetDocumentation(cmDocumentationEntry& entry, const char*) const
{
  entry.name = this->GetName();
  entry.brief = "Generates CodeBlocks project files.";
  entry.full =
    "Project files for CodeBlocks will be created in the top directory "
    "and in every subdirectory which features a CMakeLists.txt file "
    "containing a PROJECT() call. "
    "Additionally a hierarchy of makefiles is generated into the "
    "build tree.  The appropriate make program can build the project through "
    "the default make target.  A \"make install\" target is also provided.";
}

cmExtraCodeBlocksGenerator::cmExtraCodeBlocksGenerator()
:cmExternalMakefileProjectGenerator()
{
#if defined(_WIN32)
  this->SupportedGlobalGenerators.push_back("NMake Makefiles");
  this->SupportedGlobalGenerators.push_back("MinGW Makefiles");
// disable MSYS until somebody actually tests it
//  this->SupportedGlobalGenerators.push_back("MSYS Makefiles");
#endif
  this->SupportedGlobalGenerators.push_back("Unix Makefiles");
}


void cmExtraCodeBlocksGenerator::SetGlobalGenerator(
                                                  cmGlobalGenerator* generator)
{
  cmExternalMakefileProjectGenerator::SetGlobalGenerator(generator);
  cmGlobalUnixMakefileGenerator3* mf = (cmGlobalUnixMakefileGenerator3*)
                                                                     generator;
  mf->SetToolSupportsColor(false);
  mf->SetForceVerboseMakefiles(true);
}

void cmExtraCodeBlocksGenerator::Generate()
{

  const cmMakefile* topLevelMakefile = 
                 this->GlobalGenerator->GetLocalGenerators()[0]->GetMakefile();

  std::string workspaceName = topLevelMakefile->GetProjectName();
  std::string outputDir=topLevelMakefile->GetStartOutputDirectory();
  std::string workspaceFilename = outputDir;
  workspaceFilename += "/";
  workspaceFilename += workspaceName;
  workspaceFilename += ".workspace";

  cmGeneratedFileStream fout(workspaceFilename.c_str());
  if(!fout)
  {
    return;
  }

  fout<<"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\" ?>\n"
        "<CodeBlocks_workspace_file>\n"
        "   <Workspace title=\""<<workspaceName<<"\">\n";

  bool firstProject = true;
  // for each sub project in the project create
  // a kdevelop project
  for (std::map<cmStdString, std::vector<cmLocalGenerator*> >::const_iterator
       it = this->GlobalGenerator->GetProjectMap().begin();
      it!= this->GlobalGenerator->GetProjectMap().end();
      ++it)
    {
    const cmMakefile* mf=it->second[0]->GetMakefile();
    std::string filename=mf->GetStartOutputDirectory();
    filename+="/";
    filename+=mf->GetProjectName();
    filename+=".cbp";

    if (firstProject)
    {
      fout<<"      <Project filename=\""<< filename<<"\" active=\"1\"/>\n";
    }
    else
    {
      fout<<"      <Project filename=\""<< filename<<"\" />\n";
    }
    // create a project file
    this->CreateProjectFile(it->second);
    }

  fout<<"   </Workspace>\n"
        "</CodeBlocks_workspace_file>\n";
}


/* create the project file, if it already exists, merge it with the
existing one, otherwise create a new one */
void cmExtraCodeBlocksGenerator::CreateProjectFile(
                                     const std::vector<cmLocalGenerator*>& lgs)
{
  const cmMakefile* mf=lgs[0]->GetMakefile();
  std::string outputDir=mf->GetStartOutputDirectory();
  std::string projectDir=mf->GetHomeDirectory();
  std::string projectName=mf->GetProjectName();

  std::string filename=outputDir+"/";
  filename+=projectName+".cbp";
  std::string sessionFilename=outputDir+"/";
  sessionFilename+=projectName+".layout";

/*  if (cmSystemTools::FileExists(filename.c_str()))
    {
    this->MergeProjectFiles(outputDir, projectDir, filename,
                            cmakeFilePattern, sessionFilename);
    }
  else */
    {
    this->CreateNewProjectFile(lgs, filename);
    }

}


void cmExtraCodeBlocksGenerator
  ::CreateNewProjectFile(const std::vector<cmLocalGenerator*>& lgs,
                         const std::string& filename)
{
  const cmMakefile* mf=lgs[0]->GetMakefile();
  cmGeneratedFileStream fout(filename.c_str());
  if(!fout)
    {
    return;
    }

  std::string make = mf->GetRequiredDefinition("CMAKE_MAKE_PROGRAM");

  fout<<"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\" ?>\n"
        "<CodeBlocks_project_file>\n"
        "   <FileVersion major=\"1\" minor=\"6\" />\n"
        "   <Project>\n";

  fout<<"      <Option title=\"" << mf->GetProjectName()<<"\" />\n"
        "      <Option makefile_is_custom=\"1\" />\n"
        "      <Option compiler=\"gcc\" />\n"
        "      <Build>\n";

  bool installTargetCreated = false;
  bool testTargetCreated = false;
  bool packageTargetCreated = false;
  
  for (std::vector<cmLocalGenerator*>::const_iterator lg=lgs.begin();
       lg!=lgs.end(); lg++)
    {
    cmMakefile* makefile=(*lg)->GetMakefile();
    cmTargets& targets=makefile->GetTargets();
    for (cmTargets::iterator ti = targets.begin();
         ti != targets.end(); ti++)
      {
        switch(ti->second.GetType())
        {
          case cmTarget::GLOBAL_TARGET:
            if ((ti->first=="install") && (installTargetCreated==false)) 
            {
              installTargetCreated=true;
            }
            else if ((ti->first=="package") && (packageTargetCreated==false)) 
            {
              packageTargetCreated=true;
            }
            else if ((ti->first=="test") && (testTargetCreated==false)) 
            {
              testTargetCreated=true;
            }
            else
            {
              break;
            }
          case cmTarget::EXECUTABLE:
          case cmTarget::STATIC_LIBRARY:
          case cmTarget::SHARED_LIBRARY:
          case cmTarget::MODULE_LIBRARY:
//          case cmTarget::UTILITY:
  fout<<"      <Target title=\""<<ti->first<<"\">\n"
        "         <Option output=\""<<ti->second.GetLocation(0)<<"\" prefix_auto=\"0\" extension_auto=\"0\" />\n"
        "         <Option working_dir=\""<<makefile->GetStartOutputDirectory()<<"\" />\n"
        "         <Option type=\"0\" />\n"
        "         <Option compiler=\"gcc\" />\n"
        "         <MakeCommands>\n";

  fout<<"            <Build command=\""<<make<<" -f "<<makefile->GetStartOutputDirectory()<<"/Makefile "<<ti->first<<"\" />\n";
  fout<<"            <CompileFile command=\""<<make<<" -f "<<makefile->GetStartOutputDirectory()<<"/Makefile "<<ti->first<<"\" />\n";
  fout<<"            <Clean command=\""<<make<<" -f "<<makefile->GetStartOutputDirectory()<<"/Makefile clean\" />\n";
  fout<<"            <DistClean command=\""<<make<<" -f "<<makefile->GetStartOutputDirectory()<<"/Makefile clean\" />\n";

  fout<<"         </MakeCommands>\n"
        "      </Target>\n";
//  if (ti->second.GetType()==cmTarget::UTILITY) fout<<"****** UTILITY \n";
//  if (ti->second.GetType()==cmTarget::GLOBAL_TARGET) fout<<"****** GLOBAL_YESTERDAY \n";
            break;
          default:
            break;
        }
      }
    }

  fout<<"      </Build>\n";

  
  std::map<std::string, std::string> sourceFiles;
  for (std::vector<cmLocalGenerator*>::const_iterator lg=lgs.begin();
       lg!=lgs.end(); lg++)
  {
    cmMakefile* makefile=(*lg)->GetMakefile();
    cmTargets& targets=makefile->GetTargets();
    for (cmTargets::iterator ti = targets.begin();
         ti != targets.end(); ti++)
    {
      switch(ti->second.GetType())
      {
        case cmTarget::EXECUTABLE:
        case cmTarget::STATIC_LIBRARY:
        case cmTarget::SHARED_LIBRARY:
        case cmTarget::MODULE_LIBRARY:
        {
          const std::vector<cmSourceFile*>&sources=ti->second.GetSourceFiles();
          for (std::vector<cmSourceFile*>::const_iterator si=sources.begin();
               si!=sources.end(); si++)
          {
            sourceFiles[(*si)->GetFullPath()] = ti->first;
          }
        }
        default:
          break;
      }
    }
  }
  
  for (std::map<std::string, std::string>::const_iterator 
       sit=sourceFiles.begin();
       sit!=sourceFiles.end();
       ++sit)
  {
  fout<<"      <Unit filename=\""<<sit->first <<"\">\n";
  fout<<"      </Unit>\n";
  }
  
  fout<<"   </Project>\n"
        "</CodeBlocks_project_file>\n";

}