/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying

   file LICENSE.rst or https://cmake.org/licensing for details.  */

#include "cmLocalGhsMultiGenerator.h"

#include <map>

#include <utility>

#include <vector>

#include <cm/optional>

#include "cmGeneratorTarget.h"

#include "cmGhsMultiTargetGenerator.h"

#include "cmGlobalGenerator.h"

#include "cmObjectLocation.h"

#include "cmSourceFile.h"

#include "cmStringAlgorithms.h"

#include "cmSystemTools.h"

cmLocalGhsMultiGenerator::cmLocalGhsMultiGenerator(cmGlobalGenerator* gg,

                                                   cmMakefile* mf)

  : cmLocalGenerator(gg, mf)

{

}

cmLocalGhsMultiGenerator::~cmLocalGhsMultiGenerator() = default;

std::string cmLocalGhsMultiGenerator::GetTargetDirectory(

  cmGeneratorTarget const* target,

  cmStateEnums::IntermediateDirKind /*kind*/) const

{

  std::string dir = cmStrCat(target->GetName(), ".dir");

  return dir;

}

void cmLocalGhsMultiGenerator::Generate()

{

  for (cmGeneratorTarget* gt :

       this->GlobalGenerator->GetLocalGeneratorTargetsInOrder(this)) {

    if (!gt->IsInBuildSystem()) {

      continue;

    }

    cmGhsMultiTargetGenerator tg(gt);

    tg.Generate();

  }

}

void cmLocalGhsMultiGenerator::ComputeObjectFilenames(

  std::map<cmSourceFile const*, cmObjectLocations>& mapping,

  std::string const& config, cmGeneratorTarget const* gt)

{

  std::string dir_max = cmStrCat(gt->GetSupportDirectory(), '/');

  // Count the number of object files with each name.  Note that

  // filesystem may not be case sensitive.

  std::map<std::string, int> counts;

  for (auto const& si : mapping) {

    cmSourceFile const* sf = si.first;

    std::string objectName;

    auto customObjectName = this->GetCustomObjectFileName(*sf);

    if (customObjectName.empty()) {

      objectName =

        cmSystemTools::GetFilenameWithoutLastExtension(sf->GetFullPath());

    } else {

      objectName = std::move(customObjectName);

    }

    objectName += this->GlobalGenerator->GetLanguageOutputExtension(*sf);

    std::string objectNameLower = cmSystemTools::LowerCase(objectName);

    counts[objectNameLower] += 1;

  }

  // For all source files producing duplicate names we need unique

  // object name computation.

  for (auto& si : mapping) {

    cmSourceFile const* sf = si.first;

    bool forceShortObjectName = true;

    std::string shortObjectName = this->GetObjectFileNameWithoutTarget(

      *sf, dir_max, nullptr, nullptr, &forceShortObjectName);

    std::string longObjectName;

    auto customObjectName = this->GetCustomObjectFileName(*sf);

    if (customObjectName.empty()) {

      longObjectName =

        cmSystemTools::GetFilenameWithoutLastExtension(sf->GetFullPath());

    } else {

      longObjectName = std::move(customObjectName);

      const_cast<cmGeneratorTarget*>(gt)->AddExplicitObjectName(sf);

    }

    longObjectName += this->GlobalGenerator->GetLanguageOutputExtension(*sf);

    if (counts[cmSystemTools::LowerCase(longObjectName)] > 1) {

      const_cast<cmGeneratorTarget*>(gt)->AddExplicitObjectName(sf);

      forceShortObjectName = false;

      longObjectName = this->GetObjectFileNameWithoutTarget(

        *sf, dir_max, nullptr, nullptr, &forceShortObjectName);

      cmsys::SystemTools::ReplaceString(longObjectName, "/", "_");

    }

    si.second.ShortLoc.emplace(shortObjectName);

    si.second.LongLoc.Update(longObjectName);

    this->FillCustomInstallObjectLocations(*sf, config, nullptr,

                                           si.second.InstallLongLoc);

  }

}