#pragma once

#include <cstddef>
#include <limits>
#include <type_traits>

namespace Efi
{
	class Status
	{
		using size_t = std::size_t;
		using ssize_t = std::make_signed_t<size_t>;

		size_t m_Value;

		constexpr Status(size_t value)
			: m_Value(value)
		{
		}

		constexpr bool IsError() const
		{
			return static_cast<ssize_t>(m_Value) < 0;
		}

		constexpr bool IsWarning() const
		{
			return m_Value > 0;
		}

		constexpr bool IsSuccess() const
		{
			return m_Value == 0;
		}

		constexpr static Status ErrorStatus(size_t code)
		{
			auto errorBit = std::numeric_limits<ssize_t>::min();
			return Status(static_cast<size_t>(errorBit) | code); 
		}

		constexpr static Status WarningStatus(size_t code)
		{
			return Status(code);
		}

		public:

		operator size_t() const
		{
			return m_Value;
		}

		static const Status Success;

		class Warning
		{
			public:

			static const Status UnknownGlyph;
			static const Status DeleteFailure;
			static const Status WriteFailure;
			static const Status BufferTooSmall;
			static const Status StaleData;
			static const Status FileSystem;
			static const Status ResetRequired;
		};

		class Error
		{
			public:

			static const Status LoadError;
			static const Status InvalidParameter;
			static const Status Unsupported;
			static const Status BadBufferSize;
			static const Status BufferTooSmall;
			static const Status NotReady;
			static const Status DeviceError;
			static const Status WriteProtected;
			static const Status OutOfResources;
			static const Status VolumeCorrupted;
			static const Status VolumeFull;
			static const Status NoMedia;
			static const Status MediaChanged;
			static const Status NotFound;
			static const Status AccessDenied;
			static const Status NoResponse;
			static const Status NoMapping;
			static const Status Timeout;
			static const Status NotStarted;
			static const Status AlreadyStarted;
			static const Status Aborted;
			static const Status IcmpError;
			static const Status TftpError;
			static const Status ProtocolError;
			static const Status IncompatibleVersion;
			static const Status SecurityViolation;
			static const Status CrcError;
			static const Status EndOfMedia;
			static const Status EndOfFile;
			static const Status InvalidLanguage;
			static const Status CompromisedData;
			static const Status IpAddressConflict;
			static const Status HttpError;
		};

	};
}