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

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

#include "cmGetSourceFilePropertyCommand.h"

#include <functional>

#include <cm/string_view>

#include <cmext/string_view>

#include "cmExecutionStatus.h"

#include "cmMakefile.h"

#include "cmPolicies.h"

#include "cmSetPropertyCommand.h"

#include "cmSourceFile.h"

#include "cmValue.h"

namespace GetPropertyCommand {

bool GetSourceFilePropertyGENERATED(

  std::string const& name, cmMakefile& mf,

  std::function<bool(bool)> const& storeResult);

}

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

                                    cmExecutionStatus& status)

{

  std::vector<std::string>::size_type args_size = args.size();

  if (args_size != 3 && args_size != 5) {

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

    return false;

  }

  std::vector<std::string> source_file_directories;

  std::vector<std::string> source_file_target_directories;

  bool source_file_directory_option_enabled = false;

  bool source_file_target_option_enabled = false;

  int property_arg_index = 2;

  if (args[2] == "DIRECTORY"_s && args_size == 5) {

    property_arg_index = 4;

    source_file_directory_option_enabled = true;

    source_file_directories.push_back(args[3]);

  } else if (args[2] == "TARGET_DIRECTORY"_s && args_size == 5) {

    property_arg_index = 4;

    source_file_target_option_enabled = true;

    source_file_target_directories.push_back(args[3]);

  }

  std::vector<cmMakefile*> source_file_directory_makefiles;

  bool file_scopes_handled =

    SetPropertyCommand::HandleAndValidateSourceFileDirectoryScopes(

      status, source_file_directory_option_enabled,

      source_file_target_option_enabled, source_file_directories,

      source_file_target_directories, source_file_directory_makefiles);

  if (!file_scopes_handled) {

    return false;

  }

  std::string const& var = args[0];

  std::string const& propName = args[property_arg_index];

  bool source_file_paths_should_be_absolute =

    source_file_directory_option_enabled || source_file_target_option_enabled;

  cmMakefile& directory_makefile = *source_file_directory_makefiles[0];

  // Special handling for GENERATED property.

  // Note: Only, if CMP0163 is set to NEW!

  if (propName == "GENERATED"_s) {

    auto& mf = status.GetMakefile();

    auto cmp0163 = directory_makefile.GetPolicyStatus(cmPolicies::CMP0163);

    bool const cmp0163new =

      cmp0163 != cmPolicies::OLD && cmp0163 != cmPolicies::WARN;

    if (cmp0163new) {

      return GetPropertyCommand::GetSourceFilePropertyGENERATED(

        args[1], mf, [&var, &mf](bool isGenerated) -> bool {

          // Set the value on the original Makefile scope, not the scope of the

          // requested directory.

          mf.AddDefinition(var, (isGenerated) ? cmValue("1") : cmValue("0"));

          return true;

        });

    }

  }

  // Get the source file.

  std::string const file =

    SetPropertyCommand::MakeSourceFilePathAbsoluteIfNeeded(

      status, args[1], source_file_paths_should_be_absolute);

  cmSourceFile* sf = directory_makefile.GetSource(file);

  // for the location we must create a source file first

  if (!sf && propName == "LOCATION"_s) {

    sf = directory_makefile.CreateSource(file);

  }

  if (sf) {

    cmValue prop = nullptr;

    if (!propName.empty()) {

      prop = sf->GetPropertyForUser(propName);

    }

    if (prop) {

      // Set the value on the original Makefile scope, not the scope of the

      // requested directory.

      status.GetMakefile().AddDefinition(var, *prop);

      return true;

    }

  }

  // Set the value on the original Makefile scope, not the scope of the

  // requested directory.

  status.GetMakefile().AddDefinition(var, "NOTFOUND");

  return true;

}