/*****************************************************************************
 * Copyright (c) 2014-2019 OpenRCT2 developers
 *
 * For a complete list of all authors, please refer to contributors.md
 * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
 *
 * OpenRCT2 is licensed under the GNU General Public License version 3.
 *****************************************************************************/

/// @file
/// This file enables access to std::filesystem as `fs` namespace
/// or injects third-party drop-in replacement on build configs
/// where std::filesystem is not available.

#pragma once

// Find out if std::filesystem is available:
#if defined(_MSC_VER) // Visual Studio supports <filesystem>
#    define HAVE_STD_FILESYSTEM 1
#elif defined(__APPLE__) // XCode has the header, but reports error when included.
#    define HAVE_STD_FILESYSTEM 0
#elif defined(__ANDROID__)
#    define HAVE_STD_FILESYSTEM 0
#elif defined(__has_include) // For GCC/Clang check if the header exists.
#    if __has_include(<filesystem>)
#        define HAVE_STD_FILESYSTEM 1
#    else
#        define HAVE_STD_FILESYSTEM 0
#    endif
#else // By default assume not supported.
#    define HAVE_STD_FILESYSTEM 0
#endif

#if HAVE_STD_FILESYSTEM
#    include <filesystem>
namespace fs = std::filesystem;
#else
#    ifdef _WIN32
#        ifndef NOMINMAX
#            define NOMINMAX
#        endif
#        ifndef WIN32_LEAN_AND_MEAN
#            define WIN32_LEAN_AND_MEAN
#        endif
#        define BITMAP WIN32_BITMAP
#        define PATTERN WIN32_PATTERN
#    endif
#    include <filesystem.hpp>
#    ifdef _WIN32
#        undef CreateDirectory
#        undef CreateWindow
#        undef GetMessage
#        undef BITMAP
#        undef PATTERN
#    endif
namespace fs = ghc::filesystem;
#endif

#undef HAVE_STD_FILESYSTEM // Not needed any more, don't make it public.