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

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

  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  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 "windows.h" // this must be first to define GetCurrentDirectory
#include "cmGlobalVisualStudio7Generator.h"
#include "cmGeneratedFileStream.h"
#include "cmLocalVisualStudio7Generator.h"
#include "cmMakefile.h"
#include "cmake.h"

cmGlobalVisualStudio7Generator::cmGlobalVisualStudio7Generator()
{
  this->FindMakeProgramFile = "CMakeVS7FindMake.cmake";
}


void cmGlobalVisualStudio7Generator
::EnableLanguage(std::vector<std::string>const &  lang, 
                 cmMakefile *mf, bool optional)
{
  mf->AddDefinition("CMAKE_GENERATOR_CC", "cl");
  mf->AddDefinition("CMAKE_GENERATOR_CXX", "cl");
  mf->AddDefinition("CMAKE_GENERATOR_RC", "rc");
  mf->AddDefinition("CMAKE_GENERATOR_NO_COMPILER_ENV", "1");
  mf->AddDefinition("CMAKE_GENERATOR_FC", "ifort");

  this->AddPlatformDefinitions(mf);
  
  // Create list of configurations requested by user's cache, if any.
  this->cmGlobalGenerator::EnableLanguage(lang, mf, optional);
  this->GenerateConfigurations(mf);
  
  // if this environment variable is set, then copy it to
  // a static cache entry.  It will be used by 
  // cmLocalGenerator::ConstructScript, to add an extra PATH
  // to all custom commands.   This is because the VS IDE
  // does not use the environment it is run in, and this allows
  // for running commands and using dll's that the IDE environment
  // does not know about.
  const char* extraPath = cmSystemTools::GetEnv("CMAKE_MSVCIDE_RUN_PATH");
  if(extraPath)
    {
    mf->AddCacheDefinition
      ("CMAKE_MSVCIDE_RUN_PATH", extraPath, 
       "Saved environment variable CMAKE_MSVCIDE_RUN_PATH",
       cmCacheManager::STATIC);
    }

}

void cmGlobalVisualStudio7Generator::AddPlatformDefinitions(cmMakefile* mf)
{
  mf->AddDefinition("MSVC70", "1");
}

std::string cmGlobalVisualStudio7Generator
::GenerateBuildCommand(const char* makeProgram,
                       const char *projectName, 
                       const char* additionalOptions, const char *targetName,
                       const char* config, bool ignoreErrors, bool)
{
  // Ingoring errors is not implemented in visual studio 6
  (void) ignoreErrors;

  // now build the test
  std::string makeCommand = 
    cmSystemTools::ConvertToOutputPath(makeProgram);
  std::string lowerCaseCommand = makeCommand;
  cmSystemTools::LowerCase(lowerCaseCommand);

  // if there are spaces in the makeCommand, assume a full path
  // and convert it to a path with no spaces in it as the
  // RunSingleCommand does not like spaces
#if defined(_WIN32) && !defined(__CYGWIN__)      
  if(makeCommand.find(' ') != std::string::npos)
    {
    cmSystemTools::GetShortPath(makeCommand.c_str(), makeCommand);
    }
#endif
  makeCommand += " ";
  makeCommand += projectName;
  makeCommand += ".sln ";
  bool clean = false;
  if ( targetName && strcmp(targetName, "clean") == 0 )
    {
    clean = true;
    targetName = "ALL_BUILD";
    }
  if(clean)
    {
    makeCommand += "/clean ";
    }
  else
    {
    makeCommand += "/build ";
    }

  if(config && strlen(config))
    {
    makeCommand += config;
    }
  else
    {
    makeCommand += "Debug";
    }
  makeCommand += " /project ";

  if (targetName && strlen(targetName))
    {
    makeCommand += targetName;
    }
  else
    {
    makeCommand += "ALL_BUILD";
    }
  if ( additionalOptions )
    {
    makeCommand += " ";
    makeCommand += additionalOptions;
    }
  return makeCommand;
}

///! Create a local generator appropriate to this Global Generator
cmLocalGenerator *cmGlobalVisualStudio7Generator::CreateLocalGenerator()
{
  cmLocalVisualStudio7Generator *lg = new cmLocalVisualStudio7Generator;
  lg->SetExtraFlagTable(this->GetExtraFlagTableVS7());
  lg->SetGlobalGenerator(this);
  return lg;
}

void cmGlobalVisualStudio7Generator::GenerateConfigurations(cmMakefile* mf)
{
  // process the configurations
  const char* ct 
    = this->CMakeInstance->GetCacheDefinition("CMAKE_CONFIGURATION_TYPES");
  if ( ct )
    {
    std::vector<std::string> argsOut;
    cmSystemTools::ExpandListArgument(ct, argsOut);
    for(std::vector<std::string>::iterator i = argsOut.begin();
        i != argsOut.end(); ++i)
      {
      if(std::find(this->Configurations.begin(), 
                   this->Configurations.end(),
                   *i) == this->Configurations.end())
        {
        this->Configurations.push_back(*i);
        }
      }
    }
  // default to at least Debug and Release
  if(this->Configurations.size() == 0)
    {
    this->Configurations.push_back("Debug");
    this->Configurations.push_back("Release");
    }
  
  // Reset the entry to have a semi-colon separated list.
  std::string configs = this->Configurations[0];
  for(unsigned int i=1; i < this->Configurations.size(); ++i)
    {
    configs += ";";
    configs += this->Configurations[i];
    }

  mf->AddCacheDefinition(
    "CMAKE_CONFIGURATION_TYPES",
    configs.c_str(),
    "Semicolon separated list of supported configuration types, "
    "only supports Debug, Release, MinSizeRel, and RelWithDebInfo, "
    "anything else will be ignored.",
    cmCacheManager::STRING);
}

void cmGlobalVisualStudio7Generator::Generate()
{
  // first do the superclass method
  this->cmGlobalVisualStudioGenerator::Generate();

  // Now write out the DSW
  this->OutputSLNFile();
  // If any solution or project files changed during the generation,
  // tell Visual Studio to reload them...
  if(!cmSystemTools::GetErrorOccuredFlag())
    {
    this->CallVisualStudioMacro(MacroReload);
    }
}

void cmGlobalVisualStudio7Generator
::OutputSLNFile(cmLocalGenerator* root,
                std::vector<cmLocalGenerator*>& generators)
{
  if(generators.size() == 0)
    {
    return;
    }
  this->CurrentProject = root->GetMakefile()->GetProjectName();
  std::string fname = root->GetMakefile()->GetStartOutputDirectory();
  fname += "/";
  fname += root->GetMakefile()->GetProjectName();
  fname += ".sln";
  cmGeneratedFileStream fout(fname.c_str());
  fout.SetCopyIfDifferent(true);
  if(!fout)
    {
    return;
    }
  this->WriteSLNFile(fout, root, generators);
  if (fout.Close())
    {
    this->FileReplacedDuringGenerate(fname);
    }
}

// output the SLN file
void cmGlobalVisualStudio7Generator::OutputSLNFile()
{
  std::map<cmStdString, std::vector<cmLocalGenerator*> >::iterator it;
  for(it = this->ProjectMap.begin(); it!= this->ProjectMap.end(); ++it)
    {
    this->OutputSLNFile(it->second[0], it->second);
    }
}


void cmGlobalVisualStudio7Generator::WriteTargetConfigurations(
  std::ostream& fout, 
  cmLocalGenerator* root,
  OrderedTargetDependSet const& projectTargets)
{
  // loop over again and write out configurations for each target
  // in the solution
  for(OrderedTargetDependSet::const_iterator tt =
        projectTargets.begin(); tt != projectTargets.end(); ++tt)
    {
    cmTarget* target = *tt;
    const char* expath = target->GetProperty("EXTERNAL_MSPROJECT");
    if(expath)
      {
      this->WriteProjectConfigurations(fout, target->GetName(),
                                       true);
      }
    else
      {
      bool partOfDefaultBuild = this->IsPartOfDefaultBuild(
        root->GetMakefile()->GetProjectName(), target);
      const char *vcprojName = 
        target->GetProperty("GENERATOR_FILE_NAME");
      if (vcprojName)
        {
        this->WriteProjectConfigurations(fout, vcprojName,
                                         partOfDefaultBuild);
        }
      }
    }
}


void cmGlobalVisualStudio7Generator::WriteTargetsToSolution(
    std::ostream& fout,
    cmLocalGenerator* root,
    OrderedTargetDependSet const& projectTargets)
{
  std::string rootdir = root->GetMakefile()->GetStartOutputDirectory();
  rootdir += "/";
  for(OrderedTargetDependSet::const_iterator tt =
        projectTargets.begin(); tt != projectTargets.end(); ++tt)
    {
    cmTarget* target = *tt;
    // handle external vc project files
    const char* expath = target->GetProperty("EXTERNAL_MSPROJECT");
    if(expath)
      {
      std::string project = target->GetName();
      std::string location = expath;
      this->WriteExternalProject(fout, project.c_str(), 
                                 location.c_str(), target->GetUtilities());
      }
    else
      {
      bool skip = false;
      // if it is a global target or the check build system target
      // or the all_build target
      // then only use the one that is for the root
      if(target->GetType() == cmTarget::GLOBAL_TARGET
         || !strcmp(target->GetName(), CMAKE_CHECK_BUILD_SYSTEM_TARGET)
         || !strcmp(target->GetName(), this->GetAllTargetName()))
        {
        if(target->GetMakefile() != root->GetMakefile())
          {
          skip = true;
          }
        }
      // if not skipping the project then write it into the 
      // solution
      if(!skip)
        { 
        const char *vcprojName = 
          target->GetProperty("GENERATOR_FILE_NAME");
        if(vcprojName)
          {
          cmMakefile* tmf = target->GetMakefile();
          std::string dir = tmf->GetStartOutputDirectory();
          dir = root->Convert(dir.c_str(), 
                              cmLocalGenerator::START_OUTPUT);
          this->WriteProject(fout, vcprojName, dir.c_str(),
                             *target);
          }
        }
      }
    }
}


void cmGlobalVisualStudio7Generator::WriteTargetDepends(
    std::ostream& fout,
    OrderedTargetDependSet const& projectTargets
    )
{
  for(OrderedTargetDependSet::const_iterator tt =
        projectTargets.begin(); tt != projectTargets.end(); ++tt)
    {
    cmTarget* target = *tt;
    cmMakefile* mf = target->GetMakefile(); 
    const char *vcprojName = 
      target->GetProperty("GENERATOR_FILE_NAME");
    if (vcprojName)
      { 
      std::string dir = mf->GetStartDirectory();
      this->WriteProjectDepends(fout, vcprojName, 
                                dir.c_str(), *target);
      }
    }
}

// Write a SLN file to the stream
void cmGlobalVisualStudio7Generator
::WriteSLNFile(std::ostream& fout,
               cmLocalGenerator* root,
               std::vector<cmLocalGenerator*>& generators)
{
  // Write out the header for a SLN file
  this->WriteSLNHeader(fout);
  
   // collect the set of targets for this project by 
  // tracing depends of all targets.
  // also collect the set of targets that are explicitly
  // in this project. 
  cmGlobalGenerator::TargetDependSet projectTargets;
  cmGlobalGenerator::TargetDependSet originalTargets;
  this->GetTargetSets(projectTargets,
                      originalTargets,
                      root, generators);
  OrderedTargetDependSet orderedProjectTargets(projectTargets);
  this->WriteTargetsToSolution(fout, root, orderedProjectTargets);
  // Write out the configurations information for the solution
  fout << "Global\n"
       << "\tGlobalSection(SolutionConfiguration) = preSolution\n";
  
  int c = 0;
  for(std::vector<std::string>::iterator i = this->Configurations.begin();
      i != this->Configurations.end(); ++i)
    {
    fout << "\t\tConfigName." << c << " = " << *i << "\n";
    c++;
    }
  fout << "\tEndGlobalSection\n";
  // Write out project(target) depends 
  fout << "\tGlobalSection(ProjectDependencies) = postSolution\n";
  this->WriteTargetDepends(fout, orderedProjectTargets);
  fout << "\tEndGlobalSection\n";

  // Write out the configurations for all the targets in the project
  fout << "\tGlobalSection(ProjectConfiguration) = postSolution\n";
  this->WriteTargetConfigurations(fout, root, orderedProjectTargets);
  fout << "\tEndGlobalSection\n";

  // Write the footer for the SLN file
  this->WriteSLNFooter(fout);
}

//----------------------------------------------------------------------------
std::string
cmGlobalVisualStudio7Generator::ConvertToSolutionPath(const char* path)
{
  // Convert to backslashes.  Do not use ConvertToOutputPath because
  // we will add quoting ourselves, and we know these projects always
  // use windows slashes.
  std::string d = path;
  std::string::size_type pos = 0;
  while((pos = d.find('/', pos)) != d.npos)
    {
    d[pos++] = '\\';
    }
  return d;
}

// Write a dsp file into the SLN file,
// Note, that dependencies from executables to 
// the libraries it uses are also done here
void cmGlobalVisualStudio7Generator::WriteProject(std::ostream& fout, 
                               const char* dspname,
                               const char* dir, cmTarget& target)
{ 
   // check to see if this is a fortran build
  const char* ext = ".vcproj";
  const char* project =
    "Project(\"{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}\") = \"";
  if(this->TargetIsFortranOnly(target))
    {
    ext = ".vfproj";
    project = "Project(\"{6989167D-11E4-40FE-8C1A-2192A86A7E90}\") = \"";
    }

  fout << project
       << dspname << "\", \""
       << this->ConvertToSolutionPath(dir)
       << "\\" << dspname << ext << "\", \"{"
       << this->GetGUID(dspname) << "}\"\nEndProject\n";
}



// Write a dsp file into the SLN file,
// Note, that dependencies from executables to 
// the libraries it uses are also done here
void
cmGlobalVisualStudio7Generator
::WriteProjectDepends(std::ostream& fout,
                      const char* dspname,
                      const char*, cmTarget& target)
{
  int depcount = 0;
  // insert Begin Project Dependency  Project_Dep_Name project stuff here 
  if (target.GetType() != cmTarget::STATIC_LIBRARY)
    {
    cmTarget::LinkLibraryVectorType::const_iterator j, jend;
    j = target.GetLinkLibraries().begin();
    jend = target.GetLinkLibraries().end();
    for(;j!= jend; ++j)
      {
      if(j->first != dspname)
        {
        // is the library part of this SLN ? If so add dependency
        if(this->FindTarget(0, j->first.c_str()))
          {
          std::string guid = this->GetGUID(j->first.c_str());
          if(guid.size() == 0)
            {
            std::string m = "Target: ";
            m += dspname;
            m += " depends on unknown target: ";
            m += j->first.c_str();
            cmSystemTools::Error(m.c_str());
            }
          fout << "\t\t{" << this->GetGUID(dspname) << "}."
               << depcount << " = {" << guid << "}\n";
          depcount++;
          }
        }
      }
    }

  std::set<cmStdString>::const_iterator i, end;
  // write utility dependencies.
  i = target.GetUtilities().begin();
  end = target.GetUtilities().end();
  for(;i!= end; ++i)
    {
    if(*i != dspname)
      {
      std::string name = this->GetUtilityForTarget(target, i->c_str());
      std::string guid = this->GetGUID(name.c_str());
      if(guid.size() == 0)
        {
        std::string m = "Target: ";
        m += dspname;
        m += " depends on unknown target: ";
        m += name.c_str();
        cmSystemTools::Error(m.c_str());
        }
          
      fout << "\t\t{" << this->GetGUID(dspname) << "}." << depcount << " = {"
           << guid << "}\n";
      depcount++;
      }
    }
}


// Write a dsp file into the SLN file, Note, that dependencies from
// executables to the libraries it uses are also done here
void cmGlobalVisualStudio7Generator
::WriteProjectConfigurations(std::ostream& fout, const char* name,
                             bool partOfDefaultBuild)
{
  std::string guid = this->GetGUID(name);
  for(std::vector<std::string>::iterator i = this->Configurations.begin();
      i != this->Configurations.end(); ++i)
    {
    fout << "\t\t{" << guid << "}." << *i
         << ".ActiveCfg = " << *i << "|Win32\n";
    if(partOfDefaultBuild)
      {
      fout << "\t\t{" << guid << "}." << *i
           << ".Build.0 = " << *i << "|Win32\n";
      }
    }
}



// Write a dsp file into the SLN file,
// Note, that dependencies from executables to 
// the libraries it uses are also done here
void cmGlobalVisualStudio7Generator::WriteExternalProject(std::ostream& fout, 
                               const char* name,
                               const char* location,
                               const std::set<cmStdString>&)
{ 
  std::string d = cmSystemTools::ConvertToOutputPath(location);
  fout << "Project(\"{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}\") = \"" 
       << name << "\", \""
       << this->ConvertToSolutionPath(location) << "\", \"{"
       << this->GetGUID(name)
       << "}\"\n";
  fout << "EndProject\n";
}



// Standard end of dsw file
void cmGlobalVisualStudio7Generator::WriteSLNFooter(std::ostream& fout)
{
  fout << "\tGlobalSection(ExtensibilityGlobals) = postSolution\n"
       << "\tEndGlobalSection\n"
       << "\tGlobalSection(ExtensibilityAddIns) = postSolution\n"
       << "\tEndGlobalSection\n"
       << "EndGlobal\n";
}

  
// ouput standard header for dsw file
void cmGlobalVisualStudio7Generator::WriteSLNHeader(std::ostream& fout)
{
  fout << "Microsoft Visual Studio Solution File, Format Version 7.00\n";
}

std::string cmGlobalVisualStudio7Generator::GetGUID(const char* name)
{
  std::string guidStoreName = name;
  guidStoreName += "_GUID_CMAKE";
  const char* storedGUID = 
    this->CMakeInstance->GetCacheDefinition(guidStoreName.c_str());
  if(storedGUID)
    {
    return std::string(storedGUID);
    }
  cmSystemTools::Error("Unknown Target referenced : ",
                       name);
  return "";
}


void cmGlobalVisualStudio7Generator::CreateGUID(const char* name)
{
  std::string guidStoreName = name;
  guidStoreName += "_GUID_CMAKE";
  if(this->CMakeInstance->GetCacheDefinition(guidStoreName.c_str()))
    {
    return;
    }
  std::string ret;
  UUID uid;
  unsigned char *uidstr;
  UuidCreate(&uid);
  UuidToString(&uid,&uidstr);
  ret = reinterpret_cast<char*>(uidstr);
  RpcStringFree(&uidstr);
  ret = cmSystemTools::UpperCase(ret);
  this->CMakeInstance->AddCacheEntry(guidStoreName.c_str(), 
                                     ret.c_str(), "Stored GUID", 
                                     cmCacheManager::INTERNAL);
}

std::vector<std::string> *cmGlobalVisualStudio7Generator::GetConfigurations()
{
  return &this->Configurations;
};

//----------------------------------------------------------------------------
void cmGlobalVisualStudio7Generator
::GetDocumentation(cmDocumentationEntry& entry) const
{
  entry.Name = this->GetName();
  entry.Brief = "Generates Visual Studio .NET 2002 project files.";
  entry.Full = "";
}

// make sure "special" targets have GUID's
void cmGlobalVisualStudio7Generator::Configure()
{
  cmGlobalGenerator::Configure();
  this->CreateGUID("ALL_BUILD");
  this->CreateGUID("INSTALL");
  this->CreateGUID("RUN_TESTS");
  this->CreateGUID("EDIT_CACHE");
  this->CreateGUID("REBUILD_CACHE");
  this->CreateGUID("PACKAGE");
}

//----------------------------------------------------------------------------
void
cmGlobalVisualStudio7Generator
::AppendDirectoryForConfig(const char* prefix,
                           const char* config,
                           const char* suffix,
                           std::string& dir)
{
  if(config)
    {
    dir += prefix;
    dir += config;
    dir += suffix;
    }
}

bool cmGlobalVisualStudio7Generator::IsPartOfDefaultBuild(const char* project,
                                                          cmTarget* target)
{
  if(target->GetPropertyAsBool("EXCLUDE_FROM_DEFAULT_BUILD"))
    {
    return false;
    }
  // if it is a utilitiy target then only make it part of the 
  // default build if another target depends on it
  int type = target->GetType();
  if (type == cmTarget::GLOBAL_TARGET)
    {
    return false;
    }
  if(type == cmTarget::UTILITY)
    {
    return this->IsDependedOn(project, target);
    } 
  // default is to be part of the build
  return true;
}

//----------------------------------------------------------------------------
bool
cmGlobalVisualStudio7Generator::TargetCompare
::operator()(cmTarget const* l, cmTarget const* r)
{
  // Make sure ALL_BUILD is first so it is the default active project.
  if(strcmp(r->GetName(), "ALL_BUILD") == 0)
    {
    return false;
    }
  if(strcmp(l->GetName(), "ALL_BUILD") == 0)
    {
    return true;
    }
  return strcmp(l->GetName(), r->GetName()) < 0;
}

//----------------------------------------------------------------------------
cmGlobalVisualStudio7Generator::OrderedTargetDependSet
::OrderedTargetDependSet(cmGlobalGenerator::TargetDependSet const& targets)
{
  for(cmGlobalGenerator::TargetDependSet::const_iterator ti =
        targets.begin(); ti != targets.end(); ++ti)
    {
    this->insert(*ti);
    }
}

//----------------------------------------------------------------------------
static cmVS7FlagTable cmVS7ExtraFlagTable[] =
{
  // Precompiled header and related options.  Note that the
  // UsePrecompiledHeader entries are marked as "Continue" so that the
  // corresponding PrecompiledHeaderThrough entry can be found.
  {"UsePrecompiledHeader", "YX", "Automatically Generate", "2",
   cmVS7FlagTable::UserValueIgnored | cmVS7FlagTable::Continue},
  {"PrecompiledHeaderThrough", "YX", "Precompiled Header Name", "",
   cmVS7FlagTable::UserValueRequired},
  {"UsePrecompiledHeader", "Yu", "Use Precompiled Header", "3",
   cmVS7FlagTable::UserValueIgnored | cmVS7FlagTable::Continue},
  {"PrecompiledHeaderThrough", "Yu", "Precompiled Header Name", "",
   cmVS7FlagTable::UserValueRequired},
  {"WholeProgramOptimization", "LTCG", "WholeProgramOptimization", "TRUE", 0},

  // Exception handling mode.  If no entries match, it will be FALSE.
  {"ExceptionHandling", "GX", "enable c++ exceptions", "TRUE", 0},
  {"ExceptionHandling", "EHsc", "enable c++ exceptions", "TRUE", 0},
  // The EHa option does not have an IDE setting.  Let it go to false,
  // and have EHa passed on the command line by leaving out the table
  // entry.

  {0,0,0,0,0}
};
cmIDEFlagTable const* cmGlobalVisualStudio7Generator::GetExtraFlagTableVS7()
{
  return cmVS7ExtraFlagTable;
}
