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

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

#include "cmQTWrapCPPCommand.h"

#include <utility>

#include <cm/memory>

#include <cm/optional>

#include <cm/string_view>

#include "cmCustomCommand.h"

#include "cmCustomCommandLines.h"

#include "cmExecutionStatus.h"

#include "cmMakefile.h"

#include "cmRange.h"

#include "cmSourceFile.h"

#include "cmStringAlgorithms.h"

#include "cmSystemTools.h"

bool cmQTWrapCPPCommand(std::vector<std::string> const& args,

                        cmExecutionStatus& status)

{

  if (args.size() < 3) {

    status.SetError("called with incorrect number of arguments");

    return false;

  }

  cmMakefile& mf = status.GetMakefile();

  // Get the moc executable to run in the custom command.

  std::string const& moc_exe = mf.GetRequiredDefinition("QT_MOC_EXECUTABLE");

  // Get the variable holding the list of sources.

  std::string const& sourceList = args[1];

  std::string sourceListValue = mf.GetSafeDefinition(sourceList);

  // Create a rule for all sources listed.

  for (std::string const& arg : cmMakeRange(args).advance(2)) {

    cmSourceFile* curr = mf.GetSource(arg);

    // if we should wrap the class

    if (!(curr && curr->GetPropertyAsBool("WRAP_EXCLUDE"))) {

      // Compute the name of the file to generate.

      std::string srcName =

        cmSystemTools::GetFilenameWithoutLastExtension(arg);

      std::string newName =

        cmStrCat(mf.GetCurrentBinaryDirectory(), "/moc_", srcName, ".cxx");

      cmSourceFile* sf = mf.GetOrCreateSource(newName, true);

      sf->SetSpecialSourceType(

        cmSourceFile::SpecialSourceType::QtWrapCppSource);

      if (curr) {

        sf->SetProperty("ABSTRACT", curr->GetProperty("ABSTRACT"));

      }

      // Compute the name of the header from which to generate the file.

      std::string hname;

      if (cmSystemTools::FileIsFullPath(arg)) {

        hname = arg;

      } else {

        if (curr && curr->GetIsGenerated()) {

          hname = mf.GetCurrentBinaryDirectory();

        } else {

          hname = mf.GetCurrentSourceDirectory();

        }

        hname += "/";

        hname += arg;

      }

      // Append the generated source file to the list.

      if (!sourceListValue.empty()) {

        sourceListValue += ";";

      }

      sourceListValue += newName;

      // Create the custom command to generate the file.

      cmCustomCommandLines commandLines =

        cmMakeSingleCommandLine({ moc_exe, "-o", newName, hname });

      std::vector<std::string> depends;

      depends.push_back(moc_exe);

      depends.push_back(hname);

      auto cc = cm::make_unique<cmCustomCommand>();

      cc->SetOutputs(newName);

      cc->SetDepends(depends);

      cc->SetCommandLines(commandLines);

      cc->SetComment("Qt Wrapped File");

      mf.AddCustomCommandToOutput(std::move(cc));

    }

  }

  // Store the final list of source files.

  mf.AddDefinition(sourceList, sourceListValue);

  return true;

}