// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___FILESYSTEM_OPERATIONS_H
#define _LIBCPP___FILESYSTEM_OPERATIONS_H

#include <__availability>
#include <__config>
#include <__filesystem/copy_options.h>
#include <__filesystem/file_status.h>
#include <__filesystem/file_time_type.h>
#include <__filesystem/file_type.h>
#include <__filesystem/path.h>
#include <__filesystem/perm_options.h>
#include <__filesystem/perms.h>
#include <__filesystem/space_info.h>
#include <chrono>
#include <cstdint>
#include <system_error>

#ifndef _LIBCPP_CXX03_LANG

_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM

_LIBCPP_AVAILABILITY_FILESYSTEM_PUSH

_LIBCPP_FUNC_VIS
path __absolute(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
path __canonical(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
bool __copy_file(const path& __from, const path& __to, copy_options __opt,
                 error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
void __copy_symlink(const path& __existing_symlink, const path& __new_symlink,
                    error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
void __copy(const path& __from, const path& __to, copy_options __opt,
            error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
bool __create_directories(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
void __create_directory_symlink(const path& __to, const path& __new_symlink,
                                error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
bool __create_directory(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
bool __create_directory(const path& p, const path& attributes,
                        error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
void __create_hard_link(const path& __to, const path& __new_hard_link,
                        error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
void __create_symlink(const path& __to, const path& __new_symlink,
                      error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
path __current_path(error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
void __current_path(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
bool __equivalent(const path&, const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
file_status __status(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
uintmax_t __file_size(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
uintmax_t __hard_link_count(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
file_status __symlink_status(const path&, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
file_time_type __last_write_time(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
void __last_write_time(const path& p, file_time_type new_time,
                       error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
path __weakly_canonical(path const& __p, error_code* __ec = nullptr);
_LIBCPP_FUNC_VIS
path __read_symlink(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
uintmax_t __remove_all(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
bool __remove(const path& p, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
void __rename(const path& from, const path& to, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
void __resize_file(const path& p, uintmax_t size, error_code* ec = nullptr);
_LIBCPP_FUNC_VIS
path __temp_directory_path(error_code* __ec = nullptr);

inline _LIBCPP_INLINE_VISIBILITY path absolute(const path& __p) {
  return __absolute(__p);
}

inline _LIBCPP_INLINE_VISIBILITY path absolute(const path& __p,
                                               error_code& __ec) {
  return __absolute(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path canonical(const path& __p) {
  return __canonical(__p);
}

inline _LIBCPP_INLINE_VISIBILITY path canonical(const path& __p,
                                                error_code& __ec) {
  return __canonical(__p, &__ec);
}


inline _LIBCPP_INLINE_VISIBILITY bool copy_file(const path& __from,
                                                const path& __to) {
  return __copy_file(__from, __to, copy_options::none);
}

inline _LIBCPP_INLINE_VISIBILITY bool
copy_file(const path& __from, const path& __to, error_code& __ec) {
  return __copy_file(__from, __to, copy_options::none, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool
copy_file(const path& __from, const path& __to, copy_options __opt) {
  return __copy_file(__from, __to, __opt);
}

inline _LIBCPP_INLINE_VISIBILITY bool copy_file(const path& __from,
                                                const path& __to,
                                                copy_options __opt,
                                                error_code& __ec) {
  return __copy_file(__from, __to, __opt, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void copy_symlink(const path& __existing,
                                                   const path& __new) {
  __copy_symlink(__existing, __new);
}

inline _LIBCPP_INLINE_VISIBILITY void
copy_symlink(const path& __ext, const path& __new, error_code& __ec) noexcept {
  __copy_symlink(__ext, __new, &__ec);
}


inline _LIBCPP_INLINE_VISIBILITY void copy(const path& __from,
                                           const path& __to) {
  __copy(__from, __to, copy_options::none);
}

inline _LIBCPP_INLINE_VISIBILITY void copy(const path& __from, const path& __to,
                                           error_code& __ec) {
  __copy(__from, __to, copy_options::none, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void copy(const path& __from, const path& __to,
                                           copy_options __opt) {
  __copy(__from, __to, __opt);
}

inline _LIBCPP_INLINE_VISIBILITY void copy(const path& __from, const path& __to,
                                           copy_options __opt,
                                           error_code& __ec) {
  __copy(__from, __to, __opt, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool create_directories(const path& __p) {
  return __create_directories(__p);
}

inline _LIBCPP_INLINE_VISIBILITY bool create_directories(const path& __p,
                                                         error_code& __ec) {
  return __create_directories(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void
create_directory_symlink(const path& __to, const path& __new) {
  __create_directory_symlink(__to, __new);
}

inline _LIBCPP_INLINE_VISIBILITY void
create_directory_symlink(const path& __to, const path& __new,
                         error_code& __ec) noexcept {
  __create_directory_symlink(__to, __new, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool create_directory(const path& __p) {
  return __create_directory(__p);
}

inline _LIBCPP_INLINE_VISIBILITY bool
create_directory(const path& __p, error_code& __ec) noexcept {
  return __create_directory(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool create_directory(const path& __p,
                                                       const path& __attrs) {
  return __create_directory(__p, __attrs);
}

inline _LIBCPP_INLINE_VISIBILITY bool
create_directory(const path& __p, const path& __attrs,
                 error_code& __ec) noexcept {
  return __create_directory(__p, __attrs, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void create_hard_link(const path& __to,
                                                       const path& __new) {
  __create_hard_link(__to, __new);
}

inline _LIBCPP_INLINE_VISIBILITY void
create_hard_link(const path& __to, const path& __new,
                 error_code& __ec) noexcept {
  __create_hard_link(__to, __new, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void create_symlink(const path& __to,
                                                     const path& __new) {
  __create_symlink(__to, __new);
}

inline _LIBCPP_INLINE_VISIBILITY void
create_symlink(const path& __to, const path& __new, error_code& __ec) noexcept {
  return __create_symlink(__to, __new, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path current_path() {
  return __current_path();
}

inline _LIBCPP_INLINE_VISIBILITY path current_path(error_code& __ec) {
  return __current_path(&__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void current_path(const path& __p) {
  __current_path(__p);
}

inline _LIBCPP_INLINE_VISIBILITY void current_path(const path& __p,
                                                   error_code& __ec) noexcept {
  __current_path(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool equivalent(const path& __p1,
                                                 const path& __p2) {
  return __equivalent(__p1, __p2);
}

inline _LIBCPP_INLINE_VISIBILITY bool
equivalent(const path& __p1, const path& __p2, error_code& __ec) noexcept {
  return __equivalent(__p1, __p2, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool status_known(file_status __s) noexcept {
  return __s.type() != file_type::none;
}

inline _LIBCPP_INLINE_VISIBILITY bool exists(file_status __s) noexcept {
  return status_known(__s) && __s.type() != file_type::not_found;
}

inline _LIBCPP_INLINE_VISIBILITY bool exists(const path& __p) {
  return exists(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool exists(const path& __p,
                                             error_code& __ec) noexcept {
  auto __s = __status(__p, &__ec);
  if (status_known(__s))
    __ec.clear();
  return exists(__s);
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t file_size(const path& __p) {
  return __file_size(__p);
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t
file_size(const path& __p, error_code& __ec) noexcept {
  return __file_size(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t hard_link_count(const path& __p) {
  return __hard_link_count(__p);
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t
hard_link_count(const path& __p, error_code& __ec) noexcept {
  return __hard_link_count(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool is_block_file(file_status __s) noexcept {
  return __s.type() == file_type::block;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_block_file(const path& __p) {
  return is_block_file(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_block_file(const path& __p,
                                                    error_code& __ec) noexcept {
  return is_block_file(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool
is_character_file(file_status __s) noexcept {
  return __s.type() == file_type::character;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_character_file(const path& __p) {
  return is_character_file(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool
is_character_file(const path& __p, error_code& __ec) noexcept {
  return is_character_file(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_directory(file_status __s) noexcept {
  return __s.type() == file_type::directory;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_directory(const path& __p) {
  return is_directory(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_directory(const path& __p,
                                                   error_code& __ec) noexcept {
  return is_directory(__status(__p, &__ec));
}

_LIBCPP_FUNC_VIS
bool __fs_is_empty(const path& p, error_code* ec = nullptr);

inline _LIBCPP_INLINE_VISIBILITY bool is_empty(const path& __p) {
  return __fs_is_empty(__p);
}

inline _LIBCPP_INLINE_VISIBILITY bool is_empty(const path& __p,
                                               error_code& __ec) {
  return __fs_is_empty(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool is_fifo(file_status __s) noexcept {
  return __s.type() == file_type::fifo;
}
inline _LIBCPP_INLINE_VISIBILITY bool is_fifo(const path& __p) {
  return is_fifo(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_fifo(const path& __p,
                                              error_code& __ec) noexcept {
  return is_fifo(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool
is_regular_file(file_status __s) noexcept {
  return __s.type() == file_type::regular;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_regular_file(const path& __p) {
  return is_regular_file(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool
is_regular_file(const path& __p, error_code& __ec) noexcept {
  return is_regular_file(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_symlink(file_status __s) noexcept {
  return __s.type() == file_type::symlink;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_symlink(const path& __p) {
  return is_symlink(__symlink_status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_symlink(const path& __p,
                                                 error_code& __ec) noexcept {
  return is_symlink(__symlink_status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_other(file_status __s) noexcept {
  return exists(__s) && !is_regular_file(__s) && !is_directory(__s) &&
         !is_symlink(__s);
}

inline _LIBCPP_INLINE_VISIBILITY bool is_other(const path& __p) {
  return is_other(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_other(const path& __p,
                                               error_code& __ec) noexcept {
  return is_other(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_socket(file_status __s) noexcept {
  return __s.type() == file_type::socket;
}

inline _LIBCPP_INLINE_VISIBILITY bool is_socket(const path& __p) {
  return is_socket(__status(__p));
}

inline _LIBCPP_INLINE_VISIBILITY bool is_socket(const path& __p,
                                                error_code& __ec) noexcept {
  return is_socket(__status(__p, &__ec));
}

inline _LIBCPP_INLINE_VISIBILITY file_time_type
last_write_time(const path& __p) {
  return __last_write_time(__p);
}

inline _LIBCPP_INLINE_VISIBILITY file_time_type
last_write_time(const path& __p, error_code& __ec) noexcept {
  return __last_write_time(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void last_write_time(const path& __p,
                                                      file_time_type __t) {
  __last_write_time(__p, __t);
}

inline _LIBCPP_INLINE_VISIBILITY void
last_write_time(const path& __p, file_time_type __t,
                error_code& __ec) noexcept {
  __last_write_time(__p, __t, &__ec);
}

_LIBCPP_FUNC_VIS
void __permissions(const path&, perms, perm_options, error_code* = nullptr);

inline _LIBCPP_INLINE_VISIBILITY void
permissions(const path& __p, perms __prms,
            perm_options __opts = perm_options::replace) {
  __permissions(__p, __prms, __opts);
}

inline _LIBCPP_INLINE_VISIBILITY void permissions(const path& __p, perms __prms,
                                                  error_code& __ec) noexcept {
  __permissions(__p, __prms, perm_options::replace, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void permissions(const path& __p, perms __prms,
                                                  perm_options __opts,
                                                  error_code& __ec) {
  __permissions(__p, __prms, __opts, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path proximate(const path& __p,
                                                const path& __base,
                                                error_code& __ec) {
  path __tmp = __weakly_canonical(__p, &__ec);
  if (__ec)
    return {};
  path __tmp_base = __weakly_canonical(__base, &__ec);
  if (__ec)
    return {};
  return __tmp.lexically_proximate(__tmp_base);
}

inline _LIBCPP_INLINE_VISIBILITY path proximate(const path& __p,
                                                error_code& __ec) {
  return proximate(__p, current_path(), __ec);
}

inline _LIBCPP_INLINE_VISIBILITY path
proximate(const path& __p, const path& __base = current_path()) {
  return __weakly_canonical(__p).lexically_proximate(
      __weakly_canonical(__base));
}

inline _LIBCPP_INLINE_VISIBILITY path read_symlink(const path& __p) {
  return __read_symlink(__p);
}

inline _LIBCPP_INLINE_VISIBILITY path read_symlink(const path& __p,
                                                   error_code& __ec) {
  return __read_symlink(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path relative(const path& __p,
                                               const path& __base,
                                               error_code& __ec) {
  path __tmp = __weakly_canonical(__p, &__ec);
  if (__ec)
    return path();
  path __tmpbase = __weakly_canonical(__base, &__ec);
  if (__ec)
    return path();
  return __tmp.lexically_relative(__tmpbase);
}

inline _LIBCPP_INLINE_VISIBILITY path relative(const path& __p,
                                               error_code& __ec) {
  return relative(__p, current_path(), __ec);
}

inline _LIBCPP_INLINE_VISIBILITY path
relative(const path& __p, const path& __base = current_path()) {
  return __weakly_canonical(__p).lexically_relative(__weakly_canonical(__base));
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t remove_all(const path& __p) {
  return __remove_all(__p);
}

inline _LIBCPP_INLINE_VISIBILITY uintmax_t remove_all(const path& __p,
                                                      error_code& __ec) {
  return __remove_all(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY bool remove(const path& __p) {
  return __remove(__p);
}

inline _LIBCPP_INLINE_VISIBILITY bool remove(const path& __p,
                                             error_code& __ec) noexcept {
  return __remove(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void rename(const path& __from,
                                             const path& __to) {
  return __rename(__from, __to);
}

inline _LIBCPP_INLINE_VISIBILITY void
rename(const path& __from, const path& __to, error_code& __ec) noexcept {
  return __rename(__from, __to, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY void resize_file(const path& __p,
                                                  uintmax_t __ns) {
  return __resize_file(__p, __ns);
}

inline _LIBCPP_INLINE_VISIBILITY void
resize_file(const path& __p, uintmax_t __ns, error_code& __ec) noexcept {
  return __resize_file(__p, __ns, &__ec);
}

_LIBCPP_FUNC_VIS
space_info __space(const path&, error_code* __ec = nullptr);

inline _LIBCPP_INLINE_VISIBILITY space_info space(const path& __p) {
  return __space(__p);
}

inline _LIBCPP_INLINE_VISIBILITY space_info space(const path& __p,
                                                  error_code& __ec) noexcept {
  return __space(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY file_status status(const path& __p) {
  return __status(__p);
}

inline _LIBCPP_INLINE_VISIBILITY file_status status(const path& __p,
                                                    error_code& __ec) noexcept {
  return __status(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY file_status symlink_status(const path& __p) {
  return __symlink_status(__p);
}

inline _LIBCPP_INLINE_VISIBILITY file_status
symlink_status(const path& __p, error_code& __ec) noexcept {
  return __symlink_status(__p, &__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path temp_directory_path() {
  return __temp_directory_path();
}

inline _LIBCPP_INLINE_VISIBILITY path temp_directory_path(error_code& __ec) {
  return __temp_directory_path(&__ec);
}

inline _LIBCPP_INLINE_VISIBILITY path weakly_canonical(path const& __p) {
  return __weakly_canonical(__p);
}

inline _LIBCPP_INLINE_VISIBILITY path weakly_canonical(path const& __p,
                                                       error_code& __ec) {
  return __weakly_canonical(__p, &__ec);
}

_LIBCPP_AVAILABILITY_FILESYSTEM_POP

_LIBCPP_END_NAMESPACE_FILESYSTEM

#endif // _LIBCPP_CXX03_LANG

#endif // _LIBCPP___FILESYSTEM_OPERATIONS_H