/*
	This file is part of Fennix Kernel.

	Fennix Kernel is free software: you can redistribute it and/or
	modify it under the terms of the GNU General Public License as
	published by the Free Software Foundation, either version 3 of
	the License, or (at your option) any later version.

	Fennix Kernel is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/

#pragma once

#include <interface/errno.h>

namespace std
{
	enum class errc
	{
		address_family_not_supported = EAFNOSUPPORT,
		address_in_use = EADDRINUSE,
		address_not_available = EADDRNOTAVAIL,
		already_connected = EISCONN,
		argument_list_too_long = E2BIG,
		argument_out_of_domain = EDOM,
		bad_address = EFAULT,
		bad_file_descriptor = EBADF,
		bad_message = EBADMSG,
		broken_pipe = EPIPE,
		connection_aborted = ECONNABORTED,
		connection_already_in_progress = EALREADY,
		connection_refused = ECONNREFUSED,
		connection_reset = ECONNRESET,
		cross_device_link = EXDEV,
		destination_address_required = EDESTADDRREQ,
		device_or_resource_busy = EBUSY,
		directory_not_empty = ENOTEMPTY,
		executable_format_error = ENOEXEC,
		file_exists = EEXIST,
		file_too_large = EFBIG,
		filename_too_long = ENAMETOOLONG,
		function_not_supported = ENOSYS,
		host_unreachable = EHOSTUNREACH,
		identifier_removed = EIDRM,
		illegal_byte_sequence = EILSEQ,
		inappropriate_io_control_operation = ENOTTY,
		interrupted = EINTR,
		invalid_argument = EINVAL,
		invalid_seek = ESPIPE,
		io_error = EIO,
		is_a_directory = EISDIR,
		message_size = EMSGSIZE,
		network_down = ENETDOWN,
		network_reset = ENETRESET,
		network_unreachable = ENETUNREACH,
		no_buffer_space = ENOBUFS,
		no_child_process = ECHILD,
		no_link = ENOLINK,
		no_lock_available = ENOLCK,
		no_message_available = ENODATA,
		no_message = ENOMSG,
		no_protocol_option = ENOPROTOOPT,
		no_space_on_device = ENOSPC,
		no_stream_resources = ENOSR,
		no_such_device_or_address = ENXIO,
		no_such_device = ENODEV,
		no_such_file_or_directory = ENOENT,
		no_such_process = ESRCH,
		not_a_directory = ENOTDIR,
		not_a_socket = ENOTSOCK,
		not_a_stream = ENOSTR,
		not_connected = ENOTCONN,
		not_enough_memory = ENOMEM,
		not_supported = ENOTSUP,
		operation_canceled = ECANCELED,
		operation_in_progress = EINPROGRESS,
		operation_not_permitted = EPERM,
		operation_not_supported = EOPNOTSUPP,
		operation_would_block = EWOULDBLOCK,
		owner_dead = EOWNERDEAD,
		permission_denied = EACCES,
		protocol_error = EPROTO,
		protocol_not_supported = EPROTONOSUPPORT,
		read_only_file_system = EROFS,
		resource_deadlock_would_occur = EDEADLK,
		resource_unavailable_try_again = EAGAIN,
		result_out_of_range = ERANGE,
		state_not_recoverable = ENOTRECOVERABLE,
		stream_timeout = ETIME,
		text_file_busy = ETXTBSY,
		timed_out = ETIMEDOUT,
		too_many_files_open_in_system = ENFILE,
		too_many_files_open = EMFILE,
		too_many_links = EMLINK,
		too_many_symbolic_link_levels = ELOOP,
		value_too_large = EOVERFLOW,
		wrong_protocol_type = EPROTOTYPE
	};

	class error_category
	{
		/* https://en.cppreference.com/w/cpp/error/error_category */
	};

	class error_code
	{
	public:
		error_code() noexcept
		{
		}

		error_code(int ec, const error_category &ecat) noexcept
		{
		}

		template <class ErrorCodeEnum>
		error_code(ErrorCodeEnum e) noexcept
		{
		}

		error_code(const error_code &other) = default;
		error_code(error_code &&other) = default;

		template <class ErrorCodeEnum>
		error_code &operator=(ErrorCodeEnum e) noexcept
		{
			return *this;
		}

		error_code &operator=(const error_code &other) = default;

		error_code &operator=(error_code &&other) = default;

		/* https://en.cppreference.com/w/cpp/error/error_code */
	};

	class error_condition;

	template <class T>
	struct is_error_code_enum : std::integral_constant<bool, false>
	{
	};

	template <class T>
	constexpr bool is_error_code_enum_v = is_error_code_enum<T>::value;
}