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

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

#pragma once

#include "cmConfigure.h" // IWYU pragma: keep

#include <memory>

#include <string>

#include "cmsys/Status.hxx"

/** \class cmFileTimes

 * \brief Loads and stores file times.

 */

class cmFileTimes

{

public:

  cmFileTimes();

  //! Calls Load()

  cmFileTimes(std::string const& fileName);

  ~cmFileTimes();

  //! @return true, if file times were loaded successfully

  bool IsValid() const { return (this->times != nullptr); }

  //! Try to load the file times from @a fileName and @return IsValid()

  cmsys::Status Load(std::string const& fileName);

  //! Stores the file times at @a fileName (if IsValid())

  cmsys::Status Store(std::string const& fileName) const;

  //! Copies the file times of @a fromFile to @a toFile

  static cmsys::Status Copy(std::string const& fromFile,

                            std::string const& toFile);

private:

#ifdef _WIN32

  class WindowsHandle;

#endif

  class Times;

  std::unique_ptr<Times> times;

};